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===== Observing Procedures ===== | ===== Observing Procedures ===== | ||
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__**OBSERVING PROCEDURES**__ \\ | __**OBSERVING PROCEDURES**__ \\ | ||
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__**SUPPLEMENTAL INFORMATION**__ \\ | __**SUPPLEMENTAL INFORMATION**__ \\ | ||
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- | {{:chara: | + | [[https://docs.google.com/ |
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- | [[:chara:trouble_shooting|Trouble Shooting]]\\ | + | {{: |
+ | [[:chara:coude_alignment_procedure|Coude alignment procedure]] - Updated 2021Jun01\\ | ||
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+ | __**ADAPTIVE OPTICS DOCUMENTATION** __ \\ | ||
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**__INSTRUMENTS__ ** \\ | **__INSTRUMENTS__ ** \\ | ||
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__**DOCUMENTATION TO BE UPDATED**__ \\ | __**DOCUMENTATION TO BE UPDATED**__ \\ | ||
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CHARA Array Operating Procedures\\ | CHARA Array Operating Procedures\\ | ||
- | Copyright © 2005-2018 The CHARA Team\\ | + | Copyright © 2005-2021 The CHARA Team\\ |
- | Last updated: | + | Last updated: |
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- | **Chapter 1:** | + | **Chapter 1: ** |
- | ==== Lab Protocol | + | === Lab Protocol === |
\\ | \\ | ||
- | \\ | + | 1.1 Lab Rules Intro |
- | {{: | + | |
- | === 1.1 Lab Rules Intro === | + | |
- | \\ | + | The CHARA optics lab is a building within a building and is intended to provide thermal and vibrational stability. The main goal of the CHARA lab rules is to keep all optics and equipment safe from any hazards. The crucial issue being misalignment of anything. The amount of dust and dander must be kept to a minimum. |
- | The CHARA optics lab is a building within a building and is intended to provide thermal and vibrational stability. The main goal of the CHARA lab rules is to keep all optics and equipment safe from any hazards. The crucial issue being misalignment of anything. The amount of dust and dander must be kept to a minimum.\\ | + | |
- | === 1.2 The Metrology Laser === | + | |
- | \\ | + | 1.2 The Metrology Laser |
- | A high-powered infrared laser is used for the delay line metrology. This is an eye hazard, so before entering the lab check to make sure the red light above the door is not on. If the laser is activated, it is a must to put on IR-protective goggles. If you are not sure, wear the goggles.\\ | + | |
- | === 1.3 General Lab Rules === | + | A high-powered infrared laser is used for the delay line metrology. This is an eye hazard, so before entering the lab check to make sure the red light above the door is not on. If the laser is activated, it is a must to put on IR-protective goggles. If you are not sure, wear the goggles. |
+ | |||
+ | 1.3 General Lab Rules | ||
- | \\ | ||
Please remember that:\\ | Please remember that:\\ | ||
Procedures in the lab must be followed closely and failure to follow these rules will result in loss of lab privileges.\\ | Procedures in the lab must be followed closely and failure to follow these rules will result in loss of lab privileges.\\ | ||
- | * Before entering the lab, you must have a reason or tasks at hand. | + | Before entering the lab, you must have a reason or tasks at hand. |
- | * Lab booties/ | + | |
- | * Proper clothing is also important. Loose hanging jackets or garments can snag on mirrors or other exposed equipment and are better left outside of the lab until you are finished. | + | |
- | * Please be alert and move slowly and cautiously. | + | |
- | * When entering the lab make sure to walk across the sticky floor mat. If the mat isn’t sticky, remove the top layer. If this is close to the final layer please notify the staff. | + | |
- | * No more than three people are allowed in the lab at once unless it is 3 to 4 hours before observing time or there is some pressing need. Many bodies can create unwanted atmospheric effects. Besides, with too many people, it is too easy to bump into each other and the equipment. | + | |
- | * If you bump, hit, move or just tap anything in the slightest way, let us know. | + | |
- | * Never touch anything you have not been trained to use. If ever in any doubt, leave it alone and get someone who knows. | + | |
- | * Any unusual sounds, sights, movement of equipment, etc., should be noted. | + | |
- | * You must know the path of the laser beams, metrology or alignment. Stay out of their way especially right before observing. If you must go into the lab during this time don’t forget to put on IR-protective goggles. | + | |
- | * Access and use of the lab requires training. If a piece of equipment does not appear to be operating properly let us know immediately. Also if you are uncertain about a lab procedure or a step in the alignment sequence contact us before proceeding. | + | |
- | * When leaving the lab any time of the day, remember to turn off all lights (fluorescent and incandescent). Lights left on generate unnecessary heat in the lab. | + | |
- | \\ [[: | + | Lab booties/ |
- | \\ | + | [[: |
- | \\ | + | \\ |
- | **Chapter 2:** | + | \\ |
+ | **Chapter 2:** | ||
+ | === Preparations in the Lab Prior to Observing === | ||
- | ==== Preparations in the Lab Prior to Observing ==== | + | 27 AUG 2012 by Judit, Current version 10 Aug 2021 by Chris |
- | | + | These are routine tasks to be performed in and around the lab every evening to prepare the array for regular observations. |
- | === 2.1 Starting the vacuum pump for the light pipes === | + | 2.1 Starting the vacuum pump for the light pipes |
- | Go into vacuum pump shack | + | Go into vacuum pump shack. Flip on power switch for pump and wait for the blower to go on in about 7 seconds. Wait 5 more seconds after the blower starts and open the top valve slowly (parallel to pipe means open). Note if fan cords are plugged into wall outlet to keep pumps cool in the summer. Note oil temperature when you start up. Oil temps are usually kept above 15º C by a block heater on the north side of the pump and a space heater on the south side. Inform Larry or Craig if the oil temp is low and the heaters did not run to bring the temp up before starting.\\ |
+ | Go into lab building, check pressures on Vacmon display. If pressure is higher than 100 torr in any of the lines, pump those lines only one at a time. Open each valve slowly, you will hear the air rush out as the pump pulls the air. Slowly continue to fully open. Open each valve as the pressure is pumped down to the pressure in the next lowest line. Ideally, you don't want to allow pressure from one line into the line of a lower pressure line. The final pressure should be around 1.0 Torr in each line when you leave the lab area if all six lines are opened. The pump will normally bring all 6 lines down to .2-.3 Torr after about an hour. The S1 and S2 lines leak the most during the day and will read the highest in the afternoon when you return, usually between 30-40 Torr in the summer and 20-30 Torr in the winter. Note any unusual vacuum readings as they can indicate a leak beyond what is normal. Sometimes a line isn't pumped down the night before and can read higher than 30 Torr. Pump down the highest ones first as stated above. | ||
- | * flip on power switch for pump (wait for blower to go on) | + | 2.2 Filling NIRO with LN2\\ |
- | * open valve slowly (parallel to pipe means open) | + | Fill both chambers |
- | * plug in fan cords to wall outlet to keep pumps cool | + | \\ |
- | * Note oil temperature when you start up. Oil temps below 20º C make for a labored start. Inform Larry if the oil temp is low and the heater did not run to bring the temp up before | + | Record that you filled the camera in the log book, noting time and camera filled. The typical notation |
- | \\ Go into building, | + | 2.3 Alignment of the light path to the telescopes\\ |
+ | Go into the lab. The green alignment laser on the light source table is used. To open necessary guis, use laptops or the tablet inside lab. The tablet or laptops are located on the table next to the MIRCX/ | ||
+ | \\ | ||
+ | 2.3.1 In the lab (Beam Combination area) Turn on power switch for alignment laser, and turn the key. Above the tiptilt camera, turn on the Pico 3 controller. | ||
- | * check pressures on Vacmon display. If pressure is higher than 100 torr in any of the lines, pump those lines only one at a time. Open valve a little, then come back to open fully. When all lines to be used are well below 100 torr, open all those valves. | + | 2.3.2 Laser alignment |
- | The final pressure should be 0.5 - 1.0 Torr in each line. The pump will normally bring all 6 lines down to .2-.3 Torr. The S1 and S2 lines leak the most during | + | Check the laser spots on the E table target at North wall of Beam Switching area. Use the laptop that resides |
- | === 2.2 Filling IR cameras | + | Note that with the new automated alignment setup installed, the beams to the right of the beams selected will also be illuminated. For instance, B2 is illuminated by B1 if both shutters are open and both Beam Samplers are moved away. Close B1 shutter to see B2 illuminated by the proper beam. When you are done, use the Beam Samplers gui to put telescopes back on the appropriate beams. Note that when multiple telescope/ |
+ | If the telescopes were used on the same beam on the previous night, the next steps may be very close and should not need much if any adjustment.\\ | ||
+ | \\ | ||
+ | 2.3.3 Lab dichroic alignments | ||
- | \\ Fill both chambers on the NIRO camera. Use the gloves and glasses provided on the shelf with the funnels and the thermos. It will normally take 1 liter of LN2 in the outer chamber and 1/2 liter in the inner chamber. Fill it until the LN2 bubbles out of the top. This camera is normally kept cool all the time, exceptions will be noted. \\ \\ Fill the other dewars ONLY if you were specifically asked to do so. Other IR cameras: JouFLU and Cali (the blue dewar on the JouFLU table). \\ \\ Record that you filled the cameras | + | NOTE: As of 2017 Jul 05, please align the dichroics following |
- | === 2.3 Alignment of the light path to the telescopes === | + | \\ |
+ | 2.3.4 Checking | ||
- | \\ Go into the lab. The green alignment | + | Put the rail target onto delay lines (toward back of the room from home sensor) Make sure carts are at back of the rails. Check spot on back side of target. If alignment |
- | * Turn on power switch for alignment laser, and turn the key. | + | 2.3.5 Labao wfs camera covers and labao shutters\\ |
- | * Above the tiptilt camera, turn on the Pico 3 controller. | + | \\ |
+ | Put the Covers | ||
- | \\ 2.3.2 Check the laser spots on the E table (at North wall of Beam Switching area) | + | Take covers off after you remove the corner cubes from their bases.\\ |
+ | \\ | ||
+ | The labao cameras (just like the tiptilt camera) are safe during pop changes as long as you do not open any labao shutters. You will notice increased counts | ||
- | * on Laser Filter gui, select ND 0.0 | + | 2.3.6 Alignment |
- | * make sure VEGA periscope is UP | + | |
- | * open LASER shutter on the SHUTTERS gui and open shutters for the beams you are going to use | + | |
- | * using the VISBEAMS gui, move the laser to the first beam pair you will check, ie. Beams 1&2 | + | |
- | * using the Beam Samplers gui, move beam samplers off of the beams you will align. | + | |
- | * check each spot that is going to be used on each pair (for ex. 1&2, 2&3, 3&4, etc.) | + | |
- | * use Pico3 gui to center laser dots on cross hairs. Be mindful | + | |
- | * use the Beam Samplers gui to put telescopes back on the appropriate beams. | + | |
- | * Note that when multiple telescope/beam configurations are requested, aligning to the secondary configuration or back up telescopes first, then finishing with the primary configuration is more efficient. | + | |
- | \\ If the telescopes were used on the same beam on the previous night, the next steps may be very close and not need much if any adjustment. \\ \\ 2.3.3 Next check the dichroic | + | The IR mirrors |
+ | \\ | ||
+ | For CLIMB 1, CLIMB 2 or CLASSIC, the removable 6-beam target should be placed in the clamps on the CLIMB table. This also applies to aligning CLIMB for fringe finding for PAVO.\\ | ||
+ | \\ | ||
+ | For MIRCX, | ||
- | * Send the beam sampler for each telescope to the requested beam according to the configuration for the night. | + | \\ |
- | * Move VISBEAMS to have laser light in the beam to be checked. | + | 2.3.6 M10 Alignment if there is no pop change |
- | * At each telescope to be used place the dichroic target against the appropriate stops and check the laser spot on that target. | + | |
- | * If the laser spot does not have clear diffraction rings or center, then use Iris gui to change | + | |
- | * Select the telescope’s dichroic (example: W1DICHR ) on Pico 1 controller. Use a tablet or use hand paddle on appropriate channel (channel table posted above Pico1 box at the side of W1 table) to align laser onto target. | + | |
- | | + | If there is a pop change, these steps will be performed in the control room. Skip ahead to Section |
- | * Put the rail target onto delay lines (toward back of the room from home sensor) | + | Go to a computer anywhere to check the beam remotely at the telescopes. Check Vacuum Monitor that the vacuum is below 20 torr. Open telescope gui from pull down menu. Click TV [ON] to open the camera window and click [M10AL] on the control tab to change view to the M10 alignment view, click [M7 open] to open the M7 mirror cover. Open the laser shutter, put the laser filter to OPEN or ND 0.3, and center the bright |
- | * make sure carts are at back of the room | + | |
- | * check spot on back side of target | + | |
- | * if alignment | + | |
- | \\ 2.3.5 The periscope covers are not used anymore so nothing to remember here. \\ \\ 2.3.6 M10 Alignment: \\ Go to a computer anywhere to check the beam remotely at the telescopes. | + | \\ |
+ | 2.4 Final steps in the lab | ||
- | * look at Vacuum Monitor, check that the vacuum is below 20 torr | + | If using CLASSIC or CLIMB, turn on the black box above the NIRO computer, and then turn on the silver box below it on the same cart. Remove |
- | * open telescope gui from pull down menu | + | |
- | * click TV [ON] to open the camera window | + | |
- | * click [M10AL] to change view to the M10 alignment view, click [M7 open] to open the M7 mirror | + | |
- | * you want to center bright spot in beam on the black reference spot | + | |
- | * may need to adjust | + | |
- | * to adjust the position, use Pico 2 to select, for example, E2M10 → [MOVE] (use large steps ~ 100) | + | |
- | * Note that the up, down, left, and right buttons do no correspond to the actual directions the spot will move | + | |
- | * when the spot is centered, click [M7 close] to close the mirror cover | + | |
- | * click TV [OFF] to close the window | + | |
- | \\ 2.3.7 Labao wfs camera covers and labao shutters \\ The labao camera covers should | + | If using MIRCX/ |
- | * IR mirror check to CLIMB or MIRC with alignment | + | On the Metrology table inside the lab, turn on two blue amplifiers for metrology laser (on button is labeled " |
- | * beam combiner alignments with white light source | + | |
- | * tiptilt Zabers alignment with alignment | + | |
- | **Covers | + | Make sure all lights are turned |
- | === 2.4 Alignment of the IR light toward beam combiners === | + | Be sure to inform the MIRCX/ |
- | \\ The IR mirrors on the beam samplers can be adjusted using Pico 2 controller to targets depending on which IR beam combiner is to be used. \\ \\ For CLIMB 1 and CLIMB 2, the removable 6-beam target should be placed in the clamps on the CLIMB table. This also applies to aligning CLIMB for fringe tracking for VEGA or fringe finding for PAVO. \\ \\ For MIRC or JouFLU, the same target should be placed in the clamps on the MIRC table. \\ | + | 2.5 Starting up the new OPLE system |
- | * Place the target | + | Go out to the computer area, turn the metrology |
- | * Place the small corner cubes (labeled) on their bases at the BRTs. Make sure they seat firmly and correctly. | + | |
- | * Open IR shutters, send laser light using VISBEAMS gui to the position you want to check. | + | |
- | * Use a tablet to bring up Pico 2 gui. Click on icon or in xterm type: xpico2 | + | |
- | * Select the appropriate IR mirror for the beam you are about to adjust. For ex: S1IR. The Beam Sampler gui tells you which telescope is in the beam you are aligning. | + | |
- | * When done for all telescope to be used, remove target and place it above the CLASSIC/ | + | |
- | \\ | + | Check sockman for old OPLE" |
- | === 2.5 Starting up OPLE and Metrology === | + | You can start the new ople gui from the menu system, called OPLESystem or with the following command |
- | \\ Go to OPLE racks | + | ssh -Y ople / |
- | * turn on OPLE Power on top unit (top of left most rack) This is the VME. | + | The gui that appears does much of the start up sequence remotely and does not fully start everything yet. This will eventually only require fewer steps to complete. |
- | * then turn on power for surge protector (bottom of left most rack) | + | |
- | * turn on power for amplifiers for cart movement and cable pullers and once the central red light on the VME rack goes out, turn on the Burleigh amplifiers for telescopes that will be used. | + | |
- | \\ On computer outside lab, bring up Primary Ople Server | + | {{https:// |
- | * Once the server comes up, type in " | + | When the laser is on, the circle marked Laser will be green and the wattage listed will be close to 80mw (instead of 20mW when off) |
- | \\ Go inside lab to check carts | + | All the circle indicators start out grey. |
- | * from pull-down menu, under GTK, open Primary OPLE GUI | + | After a 1 minute warmup of the laser, press the Metro button which will power up the Metrology cage, the laser repeater and the oscilloscope. When button indicator |
- | * click on [STATUS] | + | |
- | * click on [CONTROL] | + | |
- | * on the OPLE Control, click on [FRONT] - listen - [OFF] (can hit all in succession, then hit [ALL OFF]) If there is any squeaking noise (low hum ok), stop carts. | + | |
- | Possible fix: to shut off and turn back on OPLE racks, restart OPLE server \\ Check delay line wires on carts, sure nothing is on tracks \\ \\ On the Metrology table inside | + | Press the [start] button near the bottom. This will start up the computers, and the first stage of hardware and takes about 90 seconds to complete. The grey buttons will turn yellow with a blue icon when the computers have started up, but not loaded the drivers yet. They will then turn solid yellow when they are ready for the next step and have loaded all the drivers. (Note: E1 has often failed |
- | * Turn on two blue amplifiers for metrology laser (on button | + | Once all 6 are solid yellow, right click on each yellow dot, and select start. This loads the control software and will turn the button |
- | * Turn the key to ON on the laser power box to put metrology laser on standby | + | |
- | \\ | + | \\ |
+ | **Chapter 3: ** | ||
+ | === Setting up Computer in the Control Room === | ||
- | === 2.6 Final steps in the lab === | + | Updated Feb 2023 by Norm |
- | * If using CLASSIC or CLIMB, turn on the black box above the NIRO computer, and then turn on the silver box below it on the same cart. | + | 3.1 General Overview of Control Room computer setup |
- | * After lab is completely | + | |
- | \\ [[: | + | There are six computer screens which are now horizontally arrayed. Window layouts can be saved and reloaded to suit each operator. Use the third icon from the left in the toolbar (Operator Layout) to open a window to save or load a layout. After a restart on zoot, the necessary windows to observe can be brought up using the fourth icon from the left in the toolbar (Observation Setup). |
- | \\ | + | |
- | **Chapter | + | 3.2 Setting up for observing |
- | ==== Setting up Computer in the Control Room ==== | + | The first thing to start is the Ople server so you can let the MIRCX and MYSTIC observers know it is running. Some will start the STS data recording before Ople is started, but others may want it running. |
- | === 3.1 General Overview of Computer Setup === | + | The following windows should be opened on computer screen |
- | * There are six computer screens which are now horizontally arrayed. | + | Turn on the following from the POWER GUI: To change the setting on the power GUI, unclick LOCK, make change, re-click LOCK. If observing with CLASSIC or CLIMB2, turn on [NIRO CPU] and [CLS-DITH] on RACK_2. If observing with CLIMB1, turn on [NIRO CPU] on RACK_2 and [CLM-DITH] on RACK_3. For each telescope, turn on [TIP/TILT]. |
- | \\ {{: | + | 3.3 Servers required for observing |
- | * Things should | + | Servers can be opened from the pop up menu at bottom of screen |
- | * Screen | + | |
- | * Screen 2: Weather graph showing RH, winds, or temperatures and any overflow guis | + | |
- | * Screen 3: Telescope, | + | |
- | * Screen 4: Cosmic Debris, Power, Enclosures, and weather guis | + | |
- | * Screen 5: Telescope guis, tiptilt | + | |
- | * Screen 6: OPLE, Classic/ | + | |
- | === 3.2 After aligning the lab, you can turn on the following | + | 3.4 Open Telescope guis, or obsgtks |
- | * To change | + | 3.5 Open GUIs required for observing from the menu under GTK or the desktop icons: Open Primary OPLE gui, Open Classic, Climb1, or Climb2 gui if needed, Open LDC1 and LDC2 if PAVO or SPICA program is observing. If using Lab Tiptilt, open Tiptilt GUI. Check that the pops are set by confirming |
- | * Under Rack_2, turn on [METSCOPE] (button will turn green when ON) | + | |
- | * If observing with CLASSIC, turn on [NIRO CPU] and [CLS-DITH] on Rack_2 | + | |
- | * If observing | + | |
- | * Under LABPOW, turn on [T/T COMMS] This has been replaced | + | |
- | * For each telescope being used, turn on [TIP/TILT]. [COMMS] has been replaced | + | |
- | === 3.3 Open servers required for observing === | + | 3.6 Metrology laser and homing the carts |
- | | + | <font 14px/ |
- | * The GPS server should always stay on and remain | + | \\ |
- | * The METROL Server also stays on in screen 3 | + | <font 14px/Arial,Helvetica,sans-serif;; |
- | * Close and re-open all Telescope servers after UT 0h in screen 3 (because of tiptilt connection issues) | + | |
- | * Open Primary OPLE Server (Move to upper left of screen 6) | + | |
- | * Open Classic, Climb1, or Climb2 if needed (Move to middle left of screen 6) | + | |
- | * Open Tiptilt Server (Move to lower left of screen 6) | + | |
- | * Open Metrology Monitor | + | |
- | * Open Metrology Laser (METLAS) gui, (upper right of screen 3), this gui usually remains open. | + | |
- | === 3.4 Open Telescope GUIs from the menu === | + | <font 14px/ |
- | * Open needed Telescope guis, put on screen 5. All 6 scope guis can fit on one screen, but the TV windows will overlap slightly if all 6 are used for MIRC observing. | + | If using the CHAPMtoMet feature, once the OPLE server has fully started, please check sockman |
- | * On the main tab for each telescope gui, click [ON] under Television | + | |
- | === 3.5 Open GUIs required for observing from the menu under GTK: === | + | 3.7 Setting up the Cosmic Debris job sequencer |
- | * Open Primary OPLE gui (move to right side of OPLE server) | + | Open Cosmic Debris, CD for short, from the desktop icon. On the CONFIGURE tab, check to make sure the PoPs and telescope beam assignments agree with the white board or the setup email. If the POPs are wrong on CD, then open the " |
- | * Open Classic, Climb1, or Climb2 | + | Set the instrument and settings on Cosmic Debris. On the CONTROL tab on Cosmic Debris, select the beam combiner or combiners to be used. If using CLIMB or CLASSIC, also select the filter (H,K') and beams (1/2, 2/3, 3/1). |
- | * Open LDC1 and LDC2 if VEGA or PAVO programs | + | |
- | * Open Tiptilt GUI | + | |
- | * This will bring up Tiptilt | + | |
- | * Move viewing screens near telescope TV screens | + | |
- | === 3.6 Using the Cosmic Debris job sequencer === | + | 3.8 Synchronizing |
- | \\ Open Cosmic Debris, | + | Synchronizing the clocks is very important for positional calculations of the telescopes and ople carts. All clocks are synchronized with the [SYNC CLOCKS] button on Cosmic Debris. Push the button, and after 17 seconds, a series of messages will display on CD to indicate that the various systems and servers are sync' |
- | * On the CONFIGURE tab, check to make sure the PoPs and telescope beam assignments agree with the white board | + | 3.9. Beacon Alignments |
- | * If the POPs are wrong on CD, then open the " | + | |
- | * Click on the [Overview] button on the PoPs GUI | + | |
- | * If nonsense comes up in the overview, then click [FLUSH] and then [REOPEN] on the PoPs GUI | + | |
- | * Then click [UPDATE] on the PoPs Overview | + | |
- | * If the PoPs Overview is now correct, then click the [GET] button on the CD Control Tab, this should update the PoPs | + | |
- | * If the beams are not assigned correctly, move the beams accordingly to the proper telescope using the BeamSampler GUI and click [GET] on CD to update | + | |
- | * Select the active telescopes on the tab labeled " | + | |
- | * Choose a suitable reference cart, using the same one from the night before to make fringe finding easier. | + | |
- | * After everything is set correctly, then click [SEND] on Cosmic Debris to send the active scope information to Ople | + | |
- | \\ Set the instrument | + | The beacons wil<font 14px/ |
- | * On the " | + | In the WFS tab of the telescope GUI or the CONTROL tab of the obsgtk, turn on the red LED, open the fiber covers, then beacon flat covers. The CAMERALINK and WFS server are now part of Bootlaunch script and the ANDOR camera power should always be on in the POWER gui. Open M5 and M7 covers. |
- | * If using CLIMB or CLASSIC, also select | + | |
- | \\ Establish connection between tiptilt | + | The blue beacon is no longer an LED and has been replaced by a tunable laser. |
- | * On the Control Tab on Cosmic Debris, click on [TIPTILT COMM] | + | Start the control GUI for the blue beacons from a terminal |
- | * Click [START JOB QUEUE] on CD to continue | + | |
- | * After several seconds, the telescope servers will indicate that the Socket (SOC) connection is established and turn on the tiptilt rate display. Cosmic Debris will usually display a low rate, such as 42Hz, to indicate tiptilt is running. The servers will display 158Hz to show a proper functioning of the tiptilt system. | + | |
- | * If the connection is not established the first time, try again until CD shows rates for each telescope used. If a telescope server will not display a TT signal rate, you may need to shut it down and restart it. | + | |
- | \\ Finish setting up tiptilt GUIs | + | In the WFS GUI or obsgtk, turn the cooler on (COOL ON) and open the camera shutter (SOPEN) or SHUTTER (OPEN/ |
- | | + | **NOTE:** There are now two sets of boxes on the TWFS. The blue boxes are for locking |
- | * Click on the [SERVO CONTROL] tab on the tiptilt GUI to bring up a second window | + | |
- | * The Servo Control GUI allows you to turn ON the servo for the TT loop and make biases for individual beams (DBIAS and ZBIAS) | + | |
- | === 3.7 Turn on metrology laser and home the carts === | + | Turn on the ACQ camera in the obsgtk. Make sure that the beacon is going through the hole in the acquisition display. If not, use Beacon UP/DOWN etc buttons on a HUT gui or WFS tab on the obsgtk to move it into the hole. Look for spots to be in boxes on the WFS display. Turn on the boxes on the obsgtk [BOXES] to see how the alignment is. The boxes may be in the default position or may be moved to a position that worked better when observing. Align to whichever gives a more even illumination of spots in the boxes. As the red beacon is bright, use low gains, ie. 30-50 for the BARE dichroic, 70-100 for VIS or 200/300 for the IR dichroic, to make these alignments. If the red beacon spots on the WFS display are in the boxes, press [ALIGN BEACON] on the ALIGN tab on the TWFS GUI or [ALN BCN] on the obsgtk, wait for completion. The values should reach zero in both the X and Y axes. The default maximum number of tries is 10 so if it is not aligned before it ends, repeat |
- | \\ Turning | + | Turn labao camera [ON] and [START] the display. Make a dark with the [MKDRK] button in the LABAO section of the obsgtk. Turn on the blue beacon. The blue beacon should show spots on the LABAO display. Adjust the FPS lower if they are dim. 100 FPS is the default, but 40 is often used for observing. **Set the M7 mirror to the default position.** Then use the blue DICHROIC buttons on the WFS tab of the obsgtk or HUT gtk to get them in the boxes. When the spots are inside the boxes, press [SCOPE DICH] in the ALIGN tab on the LABAO GUI or the [ALN DICH] on the obsgtk to align the spots. |
- | * Make sure that no one is in the lab. | + | If the spots do not show at all in the labao, the scope dichroic is likely out of alignment. Turn on the lab laser and set it to ND 4.0. Look for additional spots in the ACQ window |
- | * Turn the Laser on using the metrology | + | |
- | * On the Metrology Monitor GUI, click [INITIALIZE] to initialize the metrology. A window will pop up to indicate a successful initialization. Hit [OK] on the window | + | |
- | * Select REFALL and the UNK signal for each cart being used. Hit " | + | |
- | * Click [CLEAR] | + | |
- | * The signals should look like nice sine waves. If they are too narrow | + | |
- | * To close the metrology signal windows, click on [RUN MULTIPLE] again | + | |
- | \\ Home each of the active carts | + | Note the focus term on both the TWFS and LABAO GUIs or obsgtks. The next steps will minimize both focus terms. Start with the (BEACON FOC) button on the ALIGN tab of the LABAO GUI or [FOCUS] in LABAO: section on obsgtk, wait until the procedure finishes. Then use the (FOCUS WFS) button on the ALIGN tab of the TWFS GUI or [FOCUS] in middle section on the obsgtk and wait for completion. Note that focusing the beacons does not work when the spots are not reasonably centered. Always get the spots well into the boxes first before focusing. Sometimes it helps to repeat the scope dichroic alignment and focus as each needs the other to be close to align well and large changes in the labao focus can put the TWFS out of alignment also. As the scopes are cooling, these alignments will drift and will need to be done before slewing to the first target. |
- | * The carts must be homed before observing or else fringes will not be found. Do not forget this step or endless frustration will follow. | + | See the instruments page for information about starting different instruments |
- | * At the start of the night the carts will usually be at the back of the rails with the back switch (BS) column marked with an " | + | [[: |
- | * On the " | + | \\ |
- | * If the carts do not appear to be moving after clicking "Home," go into the computer area of the lab to make sure the power for the carts and the cable pullers are turned on. If they are, then you can put IR laser googles on and go into lab to listen if the carts are making loud grinding or squealing noises when they are trying to move. If they are, then the VME may need to be restarted or the cart inspected (serious problems with the carts need to be fixed by daytime staff). | + | [[: |
- | * After the carts finish homing, the ople server will say " | + | \\ |
- | * To check that the carts have homed properly, click [TRACK] on the Control Tab of the OPLE GUI | + | \\ |
- | * The cart will track to home switch at the target position of " | + | **Chapter 4: ** |
- | * Make sure the " | + | === Observing Conditions === |
- | * Also make sure that the errors between the laser and target position are small, (0.007µm or less is typical), when tracking at the home switch | + | |
- | | + | |
- | * After checking to make sure the carts track properly, turn the carts [OFF] | + | |
- | === 3.8 Synchronizing the clocks === | + | \\ |
+ | 4.1 Observing Conditions Intro | ||
- | * Synchronizing | + | In opening |
- | * All clocks are synchronized with the [SYNC CLOCKS] button | + | |
- | === 3.9 The following windows should be opened on computer screen 3 (these are usually kept open all the time): === | + | 4.2 Humidity |
- | * Telescope monitor | + | Only open the telescopes if the humidity is steady or dropping, at 75% or below. If the roofs outside the control room are ever dripping, then the telescopes should not be opened or should be closed immediately. If when starting out, the RH is above 80%, do not open unless it drops to below 75% and stays there for at least 30 minutes. Be aware that if the RH is at 100% for many hours, things will be very wet, even if the RH drops dramatically below 75%. If you do open after that, be wary and watch the RH, and if it starts rising, be prepared to close. Closing up takes about 5 minutes, so be ready for that. The array operator is in charge of protecting the telescopes and makes the final decision on whether the conditions are safe to open. If the RH is low at the beginning of the night, and rises after you are already open, the array operator should inform the PI around 70-75%, and start closing between 80-85%. Other humidity warning signs are: 1) water dripping off the OPLE building (or wet spots on the asphalt straight down from the eaves); |
- | * Beam Samplers | + | |
- | * Visbeams, Shutters | + | |
- | * VEGA Periscope | + | |
- | * Iris | + | |
- | * Metrology Laser and Metrology Monitor | + | |
- | * Pico 2 | + | |
- | === 3.10 See the instruments page for information about starting different instruments at the beginning of the night: === | + | 4.3 Dust |
- | \\ [[: | + | Gauging the airborne dust and pollen can be problematic because you need a bright light and a relatively dark night. In general, you want to look in the bottom 0.5 meter of the light column. There will be a diffuse column lit up by the beam – don’t worry about it, just follow the dust glints. If you can count the dust glints, the conditions are safe to observe. If it looks like a blizzard, close up. If any of the dust glints shine with an orange or a peach hue, or the dust glints look abnormally large, the dust is probably ash – close up immediately. Ash seriously degrades bare aluminum coatings. Dust and wind go together. But, just because it is calm, the dust conditions might still be bad. If it was windy a few days earlier, it could have kicked up a lot of dust, which can take several days to settle. Finally, during late spring to early summer, conifer tree pollen can be problematic. If particulates are borderline please email the CHARA day staff so they can clean the optics as soon as possible. |
- | \\ | + | |
- | [[: | + | |
- | \\ | + | |
- | \\ | + | |
- | **Chapter 4: ** | + | |
- | ==== Observing Conditions ==== | + | 4.4 Wind |
- | | + | Wind has the effect of degrading the seeing as well as kicking up dust. The wind effects are amplified in the tunnel between the OPLE building and the office building, so look for other places to gauge the wind conditions. The intersection of the road and the trail to the eastern telescopes is a good place to gauge conditions. To be on the safe side, we only observe under calm to light breeze conditions (gusts less than about 10 knots, or 15 kph). Windy conditions we try to avoid. If you can hear the gusts from your desk, whistling from the light pipe supports, or the chain banging, it is too windy to observe. Occasionally you will hear the wind rustling the tops of the tall trees, but it is calm at ground level. This is a symptom of chaotic wind conditions, and almost always happens during windy episodes (Santa Anas, onshore flows, etc.), during which you shouldn’t observe – the seeing will be bad anyway. Be cautious about opening if wind gusts are above 15-20 kph; winds this high are usually correlated with bad seeing and poor data quality. Telescopes and domes should be closed if the wind gusts get up to 30 kph. This will protect the optics from branches and debris that can be blown in from the surrounding trees. |
- | \\ | + | |
- | === 4.1 Observing Conditions Intro === | + | 4.5 Snow and cold weather |
- | | + | Because of the nature |
- | === 4.2 Humidity === | + | Cold temperatures around freezing also can be problematic. Several components are not rated to operate at freezing temps. Do not open unless it is above freezing and keep an eye on the temps if they are still dropping. Otherwise, you are free to observe (assuming the humidity, dust, and wind conditions allow it). Here are limits for observing close to 0ºC. |
- | | + | Temp_warning: |
- | === 4.3 Dust === | + | Hard_limit: T_tel <= 0C or T_outside <= -5C |
- | | + | 4.6 Essential Observing Links |
- | === 4.4 Wind === | + | Mount Wilson HP Wren Cameras ([[http:// |
- | | + | National Weather Service ([[http:// |
- | === 4.5 Snow === | + | Mount Wilson Ambient station [[https:// |
- | \\ Because of the nature of the snow that falls on Mount Wilson, it is usually not a problem. If snow/wind conditions are such that drifting occurs, don’t open up. If there is still any snow stuck to the telescope dome itself, don’t open up. If there is snow still on the trees and branches procede with caution and make a visual assessment. Otherwise, you are free to observe (assuming the humidity, dust, and wind conditions allow it). \\ | + | Jet stream forecast [[https:// |
- | === 4.6 Essential Observing Links === | + | IR satellite loop [[https:// |
- | \\ | + | Clear Sky Clock ([[http:// |
- | * 150-Foot Solar Tower Current TowerCam Image ([[http:// | + | \\ |
- | * Caltech Millikan Library Camera ([[http:// | + | [[: |
- | * National Weather Service ([[http:// | + | \\ |
- | * CHARA Array weather ([[http:// | + | \\ |
- | * CHARA telescopes spy cams and weather graph ([[http:// | + | |
- | * Aerospace Corporation weather station ([[http:// | + | |
- | * Jet stream forecast ([[http:// | + | |
- | * IR satellite loop ([[http:// | + | |
- | * California Regional Weather Server ([[http:// | + | |
- | * Clear Sky Clock ([[http:// | + | |
- | + | ||
- | \\ [[: | + | |
- | \\ | + | |
- | {{: | + | |
- | \\ | + | |
- | \\ | + | |
**Chapter 5:** | **Chapter 5:** | ||
+ | === Going on Sky === | ||
- | ==== Going on Sky ==== | + | 5.1 Opening the Telescope Domes and enclosures\\ |
+ | \\ | ||
+ | You can begin opening the telescope domes and enclosures at least two hours before sunset. The white board has times written down that the domes can be fully opened. This happens when the sun is below 35º. Before this time, the domes can be vented by partially opening them. This will help air out the domes and improve seeing at the start of the night. Hot days benefit from an earlier opening to allow the scopes to cool. Before opening the domes make sure to check the current weather conditions and the forecast to make sure conditions are safe to open and are likely to be stable as you wait for it to get dark. Also confirm that Robert or Narsi have finished the alignments in the lab or the control room as opening the domes may interupt their alignments. Call the computer room at #424 if you do not see either of them. Monitor the progress of opening the domes by turning the televisions [ON] using the telescope GUIs. Click [SPY1] to view the dome slit. In the summer, when the sun is higher overhead, use the Dome GUI for each telescope to position the domes in the anti-sun position using the RA/DEC tab and the ANTI-SUN setting for AUTODOME. This will position the dome slit opposite the sun so that you can vent or open the slit well before sunset. You may also go to the Dome Tab on the Dome GUI, manually enter an anti-sun azimuth value from 70º-110º in the text box on the right, and press [GOTO]. This will move the dome slit to the east and opposite the sun. When the domes are facing east (and all lab alignments, dichroic changes or coude alignments are finished), click [UNL SL] and [SLIT] on the Control Tab of the obsgtk GUI to open the dome slit fully. If opening very early, use [UNL SL] and [VENT] to open it halfway. Be sure to open them fully when the sun has reached 35º for maximum cooling. | ||
- | \\ | + | Opening the M5 mirror cover also helps to cool the AO box by allowing the warm air to rise out of the box and cooler air to flow in from below the telescope. It can be opened early while doing the alignments in the lab. |
- | === 5.1 Opening | + | [NOT YET OPERATIONAL] On the enclosure GUI, click the [OBSERVE] button to open the lower cylinders to the observe position. Wait for the slit and enclosures |
- | \\ \\ You can begin opening the telescope | + | 5.2 Opening telescope optics\\ |
+ | \\ | ||
+ | About 20 minutes after the sun has set, it is dark enough to slew to your first target and you can begin opening the telescope | ||
- | * Monitor | + | 5.3 Check the OPLE carts\\ |
- | * Use the Dome GUI for each telescope to rotate | + | \\ |
- | * Go to the Dome Tab on the Dome GUI. In the text box on the right, enter 90 and press [GOTO]. This will move the dome slit to the east. | + | The OPLE carts were homed in the setup procedure. However, it is always a good idea to check to make sure the carts are tracking correctly before slewing to the first target. With all [MAN] and [OL] buttons green on the OPLE Control Tab, click [TRACK] to send the carts tracking to 0.0 (home). Make sure that the " |
- | * When the domes are facing east (and all lab alignments are finished), click [SLIT OPEN] on the Control Tab of the telescope GUI to open the dome slit. | + | |
- | * On the enclosure GUI, click the [OBSERVE] button | + | |
- | * Wait for the slit and enclosures | + | |
- | === 5.2 Opening | + | 5.4 Turn on the telescope |
+ | \\ | ||
+ | Make sure the telescopes being used are in their stow positions. For each telescope, the elevation should be at or near 90 degrees and [SPY1] should show the end ring of the telescope framing the top of the open dome. The azimuth positions for each telescope should be: S1, S2 82.0 - E1, E2 55.9 - W1, W2 99.3. Make sure there are no demand positions that are different from stow positions or the scopes may beging moving without being commanded. Hit STOW if any\\ | ||
+ | On the Power GUI, turn on the [Tel AZ] and [Tel EL] power for each of the active scopes (green means ON).\\ | ||
+ | The new for 2016 stall detection function usually has each scope disabled each evening. They will need to be enabled before checking the dome servers or slewing. Make sure that the telescopes do not move away from their stow positions when enabling the scopes. If they begin moving, then click [STOW] on the Telescope Control Tab or dome gui and make sure that they arrive at the correct stow position. Check for problems with the dome servers by watching each telescope move to the precise stow position, ie. 89.990º and moving to 90.000º. If it stays off the precise stow position, the dome sever may need restarting. Click [REOPEN] on the dome gui if the clock is not the same as the CHARA time. | ||
- | \\ \\ When the sun has set and before it is dark enough to slew to your first target, you can begin opening | + | 5.5 Slewing to a Target Using Cosmic Debris\\ |
+ | \\ | ||
+ | It is typically | ||
- | * [M1 OPEN] - opens the primary mirror cover (takes ~ 3 minutes to open) | + | Enter the HD number of the star into Cosmic Debris using the Object or Calibrator Tabs. Click the [HD] button to register |
- | * [M3 OPEN] | + | |
- | * [M5 OPEN] | + | |
- | * [M7 OPEN] | + | |
- | * [FIND OPEN] Note that the W2 and E1? finder covers require two clicks of the [OPEN] button to fully open. | + | |
- | * Monitor progress by using [SPY2] camera on the telescope TV screens. | + | |
- | * Wait for all covers | + | |
- | === 5.3 Check the OPLE carts === | + | Slew to your first star by clicking [OBJECT], [CHECK STAR], [CALIBRATOR 1], or [CALIBRATOR 2] on Cosmic Debris (depending on which field you entered the target information). Note that these buttons will slew the telescopes AND send the carts to their positions. Verify that the telescopes are moving by checking the azimuth and elevation status in the telescope servers (the left set of numbers show the commanded EL/AZ of the target while the right set of numbers show the current location of the telescope). Also view " |
- | | + | Make sure all carts are tracking to values between 0 and 44m. You might have to click [TRACK] for the reference cart on the OPLE Control Tab. The [OL] buttons should be depressed gray for ALL active scopes (including the reference cart). The [MAN] buttons should be depressed gray for the moving carts to allow the beam combiners to send manual offsets |
- | * With all [MAN] and [OL] buttons green on the OPLE Control Tab, click [TRACK] to send the carts tracking | + | When the telescope slew finishes, check the SPY 1 to make sure that the domes are aligned with the telescope if no star shows up in the ACQ or Finder cameras. If the star is not in the ACQ window, go to the FIND window and do the same, then return |
- | * Make sure that the " | + | |
- | * After the carts successfully track on the home switch, turn the carts [OFF]. | + | |
- | * Click the open loop [OL] button on all active carts. Click the [MAN] button on the moving carts (the MAN button for the reference cart will remain green). This will allow the beam combiners to send manual offsets | + | |
- | === 5.4 Turn on the telescope power === | + | **NOTE:** We are in the process of implementing a new alignment sequence to correct for offsets between the beacon and the IR starlight. Please follow |
- | | + | 5.6 Locking Tiptilt using the telescope |
- | * S1 82.0 | + | See [[: |
- | * S2 82.0 | + | |
- | * E1 55.9 | + | |
- | * E2 55.9 | + | |
- | * W1 99.3 | + | |
- | * W2 99.3 | + | |
- | \\ On the Power GUI, turn on the [Tel AZ] and [Tel EL] power for each of the active scopes (green means ON). \\ The new for 2016 stall detection function usually has each scope disabled each evening. They will need to be enabled before checking | + | Before locking |
- | === 5.5 Slewing | + | To lock the star, hit [MOVE] on the Main Tab of the Telescope GUI and then click the right star to bring the star to the ACQ hole. Turn on the TWFS tiptilt and DM servo on scopes that have it. Make sure the twfs tiptilt spots window show green dots that show the servo is tracking. Turn on the labao servo and DM AUTO on all scopes. All values should move to zero or near zero when the servos are on. |
- | | + | <font inherit/ |
- | * You may want to find a bright star near your first target to check the pointing of the telescopes. The [FIND STAR] button | + | <font inherit/ |
- | * Enter the HD number of the star into Cosmic Debris using the Object or Calibrator Tabs. Click the [HD] button | + | |
- | * Check to make sure that EL/AZ reported by Cosmic Debris are correct and safe for pointing (never point below 15-20 degrees | + | |
- | * Hit the WHEN button for your first star to see a plot of cart positions | + | |
- | * Slew to the target by clicking [OBJECT], [CHECK STAR], [CALIBRATOR 1], or [CALIBRATOR 2] on Cosmic Debris (depending on which field you entered the target information). Note that these buttons will slew the telescopes AND send the carts to their positions. | + | |
- | * Verify that the telescopes are moving by checking the azimuth and elevation status in the telescope servers (the left set of numbers show the commanded EL/AZ of the target while the right set of numbers show the current location of the telescope). Also view " | + | |
- | * The update in the OPLE server will take about 20 seconds for all the carts to get the new metrology calculation. Make sure all carts are tracking to values between 0 and 44m. You might have to click [TRACK] for the reference cart on the OPLE Control Tab. The [OL] buttons should be depressed gray for ALL active scopes (including the reference cart). The [MAN] buttons should be depressed gray for the moving carts to allow the beam combiners to send manual offsets to the carts. (The [MAN] button for the reference cart should be green.) | + | |
- | * When the telescope slew finishes, check the SPY 1 to make sure that the domes are aligned with the telescope. | + | |
- | * In the ACQ window, hit [MOVE] under the TV tracking menu on the Main Tab of the Telescope GUI and then click the left star to bring the star to the cross-hairs. If the star is not in the ACQ window, go to the FIND window and do the same, then return to the ACQ window and repeat. | + | |
- | \\ Locking Tiptilt | + | <font inherit/ |
- | * With the star aligned with the acquisition ticks, check to make sure there are counts on the TipTilt server or the white plots in the TT windows have condensed. | + | 5.7 Locking Lab Tiptilt |
- | * On the Main Tab of the Telescope GUI, click [TIP/TILT] under the Pointing Servo menu. If this button is not pressed, then the green dots on the tiptilt windows will drift and eventually drop TT lock. The [STAR ACQUIRED] button on Cosmic Debris also locks Tiptilt | + | |
- | * On the Tiptilt Servo Control GUI, turn tiptilt [ON] for that telescope. The [TT ON] button on Cosmic Debris also performs this function for all active scopes. | + | |
- | * Put the TV screens back to [FIND] if you like or leave them in ACQ | + | |
- | \\ Acquisition Laser Alignment | + | See [[: |
- | * Set VISBEAMS to correct beams. | + | With the star aligned |
- | * Put the Neutral Density Filter on ND 3.0 using the Laser_Filters GUI. | + | |
- | * Put the corner cube in with the [CCIN] button | + | |
- | * Using the SHUTTERS GUI, open the laser shutter and the corresponding B1-B6 shutters. | + | |
- | * You will see at least two stars and two laser spots in the ACQ window. There is a reflection, hence two images of each. The desired spots are the left ones. | + | |
- | * Use the " | + | |
- | * Close the laser shutter and the B1-B6 shutters. | + | |
- | * Move the corner cube out with the [CCOUT] | + | |
- | * Hit [MOVE] under the TV tracking menu on the Main Tab of the Telescope | + | |
- | * Lock Tiptilt as shown above. | + | |
- | * Maintain the ACQ laser alignment during the night by adjusting the crosshairs | + | |
- | | + | Offloading DM Tilt to M7 |
- | * The Job Queue ends with slewing to the star. The star is acquired manually. | + | Old method: DMTILT |
- | * Click [Star Acquired] on the Control Tab on Cosmic Debris to update the target information listed at the top of the Cosmic Debris window. This also turns on all the telescope TT servos, the same function as the TIPTILT button on each telescope gui. | + | |
- | * Initialize the pointing of the telescopes on your first target by going to the Control Tab of the Telescope GUI and clicking [INIT]. Make sure you are on the correct star before initing the scopes or you will have problems. This may have to be repeated if the pointing drifts during the night. This will allow more consistent and accurate pointing for this part of the sky. | + | |
- | * You can now point to your first science target, calibrator, alignment star or fringe finder and begin the alignment sequence for the beam combiner and then start searching for fringes. | + | |
- | === 5.6 Automatic Acquisition Sequence, removed 9-'17 === | + | New method: DMTILT is green (use tilt when computing reconstructor). DMAUTO will use DM to correct for tilt and offload to M7 when magnitude of tilt is beyond range of DM. |
- | * The slew sequence will slew the telescopes, start ATROLIB, and send the moving carts to the proper positions. The star acquisition sequence has been removed. | + | Acquisition Laser Alignment if the star does not lock in Tiptilt |
- | | + | Set VISBEAMS to correct beams. Put the Neutral Density Filter on ND 3.0 using the Laser_Filters GUI. If the beacon and fiber covers are open, use the SHUTTERS GUI to open the laser shutter and the corresponding B1-B6 shutters. You can also put in the corner cube with the [CCIN] button. You will see at least two stars and two laser spots in the ACQ window. There is a reflection, hence two images of each. The desired spots are the right ones. Use the " |
- | \\ | + | \\ |
- | **Chapter 6:** | + | 5.7 Finishing the slew sequence |
- | ==== Procedure for Shutting Down at the End of the Night ==== | + | The Job Queue ends with slewing to the star. The stars are acquired manually. Click [Star Acquired] on the Control Tab on Cosmic Debris to update the target information listed |
- | \\ | + | 5.8 Monitoring MIRCX/ |
- | === 6.1 End Night Sequence Introduction === | + | When running MIRCX/ |
- | \\ \\ The End Night sequence on Cosmic Debris can be used to end observing and stow the telescopes, carts, and domes. It will only stow the active scopes, carts, and domes, so if there are other scopes open, make them active in the Configure tab of CD or stow them manually with the procedure below, | + | \\ |
+ | [[: | ||
+ | \\ | ||
+ | **Chapter 6:** | ||
+ | === Procedure for Shutting Down at the End of the Night === | ||
- | === 6.2 Start the end night sequence on Cosmic Debris | + | 6.1 End Night Sequence Introduction\\ |
+ | \\ | ||
+ | The End Night sequence on Cosmic Debris | ||
- | * Clear the job queue on Cosmic Debris. | + | 6.2 Start the end night sequence |
- | * Press the [END NIGHT] button | + | |
- | * NOTE: The End Night Sequence will NOT close the dome slits so these will have to be closed manually after all of the telescope mirror covers are closed. It will also not send inactive carts back. Update the configuration with any inactive scopes to make sure those carts can be sent back manually as well. | + | |
- | * The Cosmic Debris status window will indicate when the end night sequence is complete. You can close Cosmic Debris after you have sent out the Observing Report. | + | Clear the job queue on Cosmic Debris. Press the [END NIGHT] button on Cosmic Debris. This will close all the shutters, stow the active telescopes, close the telescope M1 and M3 mirror covers, send the active OPLE carts to the back switch, close the OPLE socket, and archive the accumulated data for the night. NOTE: The End Night Sequence will NOT close the dome slits so these will have to be closed manually after all of the telescope M1 mirror covers are closed. It will also not send inactive carts back. Update the configuration with any inactive scopes to make sure those carts can be sent back manually as well. The Cosmic Debris status window will indicate when the end night sequence is complete. You can close Cosmic Debris after you have sent out the Observing Report. * If you use the End Night sequence to stow the telescopes and close mirror covers, remember to do a visual check of all telescopes using the check list in step 6.4 below before turning off the power for the telescopes and closing the telescope GUIs.\\ |
- | | + | A list of observed targets and an Observing Report is now automatically generated as part of the End Night Sequence. Click [END NIGHT], then [REPORT] on Cosmic Debris to generate this automatic report email. The report will include the headings: PI name, Program, Observers, Baselines, Weather and Seeing data, and targets on which data was collected. Complete the Observers and Baselines entries, add comments to the bottom of the report and put your name at the end. Check with the observer for completeness of the target list. Some observers will send you comments of their own. Add those to the report. Cut and paste this into an email to CHARA Obs and send it. To archive the report, you must also hit the SEND button at the bottom of the report to save it.\\ |
+ | Note: Classic, CLIMB, FLUOR and PAVO will automatically send the target information to Cosmic Debris after data is acquired. For MIRCx, the [DATA ACQUIRED] button can be clicked on Cosmic Debris after each data sequence is finished or it can be done by the MIRCx operator from his or her station.\\ | ||
+ | \\ | ||
+ | If you have other technical information to send out that is not related to the nightly observing runs, use our other lists that pertain to the subject at hand.\\ | ||
+ | \\ | ||
+ | In addition to paper observing logs, CHARA offers the option of using electronic logs. At minimum, we request that you fill out the date, UT time, target name, and any comments that would be relevant for subsequent reduction. This information will be useful for building and maintaining the CHARA archive: | ||
+ | CHARA Electronic Logs | ||
- | \\ A list of observed targets and an Observing Report | + | 6.3 Shutdown Checklist Introduction\\ |
+ | \\ | ||
+ | It is important | ||
- | === 6.3 Shutdown Checklist Introduction === | + | 6.4 Manually stowing the telescopes |
- | | + | Unlock the tiptilt beams using the Tiptilt servo control GUI. Turn the telescope TVs to SPY1 so that you can watch the telescopes and domes stow. On the Control Tab of the telescope GUI, click [STOW]. This will send the telescope and dome to the stow position. When the telescopes |
- | === 6.4 Manually stowing | + | 6.5 Send the OPLE carts to the back of the rails |
- | * Unlock | + | Click the OL and MAN buttons for the active carts on the OPLE GUI Control Tab so that the buttons turn green. Turn the carts OFF using the OPLE GUI. Click BACK on the OPLE GUI to send the carts to the back. Watch OPLE Server for Back Switch indicator to light up with an " |
- | * Turn the telescope TVs to SPY1 so that you can watch the telescopes. | + | |
- | * On the Control Tab of the telescope | + | |
- | * When the telescopes reach an elevation above 70 degrees, you can begin closing | + | |
- | * M1 CLOSE | + | |
- | * M3 CLOSE | + | |
- | * M5 CLOSE | + | |
- | * M7 CLOSE | + | |
- | * Finder CLOSE Note that W2 and E1? covers need a second click to close. | + | |
- | * Visually inspect | + | |
- | * After all of the mirror covers finish closing, close the dome slits by clicking [SLIT CLOSE] | + | |
- | * Close the dome enclosures by clicking [CLOSE] on the cylinder GUI. Watch that each reads .000 or .001 when closed. | + | |
- | * Check that the telescopes moved to their stow positions in EL and AZ: | + | |
- | * EL 90.0 deg, AZ 55.9 deg for E1 and E2 | + | |
- | * EL 90.0 deg, AZ 99.3 deg for W1 and W2 | + | |
- | * EL 90.0 deg, AZ 82.0 deg for S1 and S2 | + | |
- | * Turn off the power for [TEL AZ], [TEL EL] and [TIP/TILT] for the active scopes using the Power GUI. | + | |
- | * Visually check all telescopes | + | |
- | * Leave the telescope GUIs open until the End Night Sequence | + | |
- | * If the humidity is high, make sure that the heaters are turned on. | + | |
- | === 6.5 Send the OPLE carts to the back of the rails === | + | 6.6 Finish shutting down in the control room |
- | * Click the OL and MAN buttons for the active carts on the OPLE GUI Control Tab so that the buttons turn green. | + | If using Classic or CLIMB, check to make sure the dither is off by looking at the dither status in the CLASSIC/ |
- | * Turn the carts OFF using the OPLE GUI. | + | |
- | * Click BACK on the OPLE GUI to send the carts to the back. | + | |
- | * Watch OPLE Server for Back Switch indicator to light up with an " | + | |
- | * When all carts are on the Back Switch, close the OPLE gui and server and turn off the metrology laser using the METLAS GUI. The [LASER POWER] button will turn from green to red. If a cart does not reach the back switch, it may have caught the ribbon | + | |
- | === 6.6 Finish shutting | + | Shut down the ople control |
- | * If using Classic or CLIMB, check to make sure the dither is off by looking at the dither status in the CLASSIC/ | + | Close the OPLE server. |
- | * Shut off [METSCOPE], [NIRO CPU], and [CLS-DITH], or [CLM-DITH] if used on the POWER gui. | + | |
- | * Close the OPLE, Tiptilt, CLIMB/ | + | |
- | * Close the OPLE, Tiptilt, and CLIMB/ | + | |
- | * Visually check all telescopes in the spycams to make sure all covers and slits are closed. Turn the TV to Finder, then turn the TV OFF, and close the telescope GUIs. | + | |
- | * Leave GPS server and the Telescope Servers open and running | + | |
- | === 6.7 Shutting down the Lab === | + | Press the shutdown button on the OPLE System Control gui, wait until all 6 dots are grey, press the Metro button, and wait until it is grey. Close the gui on Wazoo. Turn off the metrology laser. |
- | \\ \\ Close vacuum lines and turn off pump | + | 6.7 Shutting down the Lab\\ |
+ | \\ | ||
+ | Go to the lab and close the vacuum | ||
+ | Go inside the lab with booties: Turn off the silver box, then black box for NIRO and replace the NIRO camera cover if used. Turn off the key for the green alignment laser and turn the power switch off. Turn off Pico 3 controller above the tiptilt camera. Turn off the blue amplifiers for the metrology laser (button is labeled " | ||
- | * Go to the lab and close the vacuum valves | + | Check the 6 ople computers |
- | * Go outside to the pump shack and close the vacuum valve. Then shut off the vacuum pump. Note any unusual noises or excessive oil temps (above 54 C) reported by the thermometer. Let Larry know of any concerns. | + | |
- | \\ In the computer area of the lab: | + | 6.8 Odds and ends.\\ |
- | + | \\ | |
- | * Turn off the Burleigh amplifiers, the amplifiers for cart movement, and the cable pullers. | + | Back in the Control Room: If you run into any problems during the shutdown procedures, send an email to charamnt or directly to Craig and Steve so that they can work to resolve any problems that need to be resolved promptly. Please feel free to record any details in the Observers Notebook or email Tech Report to specified groups or individual employees. Lock front and side doors of Operations Center if you are the last one in the building. Close OPLE building doors; they tend to stick open, please |
- | * Turn off the power for the surge protector (black box, bottom left of VME rack). | + | \\ |
- | * Turn off the VME, top of the left rack | + | [[: |
- | + | ||
- | \\ Go inside the lab with booties: | + | |
- | + | ||
- | * Put the tiptilt cover back on the tiptilt camera | + | |
- | * Turn off the silver box, then black box for NIRO and replace the NIRO camera cover if used. | + | |
- | * Turn off the key for the green alignment laser and turn the power switch off. | + | |
- | * Turn off Pico 3 controller above the tiptilt camera. | + | |
- | * Turn off the blue amplifiers for the metrology laser (button is labeled " | + | |
- | * Turn off the key for the metrology laser and place it on top of the laser box. | + | |
- | * Shut off controllers to the Periscopes if used. | + | |
- | * Shut off lights when exiting the lab building. Return your booties to the basket if good or to the trash if they have holes in them. | + | |
- | * Make sure all doors are closed as you leave. | + | |
- | + | ||
- | \\ | + | |
- | + | ||
- | === 6.8 Odds and ends. === | + | |
- | + | ||
- | \\ \\ Back in the Control Room: | + | |
- | + | ||
- | * If you run into any problems during the shutdown procedures, send an email to charamnt or directly to Larry and Steve so that they can work to resolve any problems that need to be resolved promptly. | + | |
- | * Please feel free to record any details in the Observers Notebook or email Tech Report to specified groups or individual employees | + | |
- | * Lock front and side doors of Operations Center if you are the last one in the building | + | |
- | * Lock OPLE building doors; they tend to stick open, please | + | |
- | + | ||
- | \\ \\ [[: | + | |