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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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+ | __**ADAPTIVE OPTICS DOCUMENTATION** __ \\ | ||
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{{: | {{: | ||
- | [[https:// | + | [[https:// |
[[https:// | [[https:// | ||
- | [[https://docs.google.com/ | + | {{:chara: |
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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 © 2005-2020 The CHARA Team\\ | + | Copyright © 2005-2021 The CHARA Team\\ |
- | Last updated: | + | Last updated: |
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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. | + | 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. Please note that the METLAS gui or OPLESystem Controller gui may not show the correct state of the laser. Hit reopen on the METLAS gui if it does not agree with the others. |
1.3 General Lab Rules | 1.3 General Lab Rules | ||
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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/ | + | Lab booties/ |
[[: | [[: | ||
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=== Preparations in the Lab Prior to Observing === | === Preparations in the Lab Prior to Observing === | ||
- | 27 AUG 2012 by Judit, Current version | + | 27 AUG 2012 by Judit, Current version |
These are routine tasks to be performed in and around the lab every evening to prepare the array for regular observations. Note that there is a new Daily Alignment Check Procedure for configurations that do not change night to night. Use it instead of the full alignment given here. | These are routine tasks to be performed in and around the lab every evening to prepare the array for regular observations. Note that there is a new Daily Alignment Check Procedure for configurations that do not change night to night. Use it instead of the full alignment given here. | ||
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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. Flip on power switch for pump (wait for blower to go on) Open valve slowly (parallel to pipe means open) Note if fan cords are plugged into 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 | + | 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 |
- | 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 valve a little, then come back to open fully. | + | 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 |
2.2 Filling NIRO with LN2\\ | 2.2 Filling NIRO with LN2\\ | ||
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 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.\\ | ||
\\ | \\ | ||
- | Record that you filled the camera in the log book, noting time and camera filled. Note also the vacuum measurement for the MIRCX camera. If you do not observe due to weather, fire or closure, | + | Record that you filled the camera in the log book, noting time and camera filled. The typical notation for NIRO is to write FF in the NIRO column to show both chambers were filled. Note that there is a morning and evening filling so follow the pattern. Note also the vacuum measurement for the MIRCX camera. If you do not observe due to weather, fire or closure, |
2.3 Alignment of the light path to the telescopes\\ | 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 two tablets | + | Go into the lab. The green alignment laser on the light source table is used. To open necessary guis, use laptops or the tablet |
\\ | \\ | ||
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. | 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. | ||
- | 2.3.2 Laser alignment to east table | + | 2.3.2 Laser alignment to east table. (New automated hardware installed in 2022) |
- | Check the laser spots on the E table target at North wall of Beam Switching area. On Laser Filter | + | Check the laser spots on the E table target at North wall of Beam Switching area. Use the laptop that resides in the corner by the East telescopes table. On Laser Filters |
+ | |||
+ | 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.\\ | 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 dichroic alignments with labao | + | 2.3.3 Lab dichroic alignments with labao |
NOTE: As of 2017 Jul 05, please align the dichroics following the instructions in {{: | NOTE: As of 2017 Jul 05, please align the dichroics following the instructions in {{: | ||
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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 is bad at the back, follow instructions for BRT adjustments. (Printed sheet on metrology table) Remove rail target and return it to the spare table when done. | 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 is bad at the back, follow instructions for BRT adjustments. (Printed sheet on metrology table) Remove rail target and return it to the spare table when done. | ||
- | 2.3.5 IR alignments are below in 2.4\\ | + | 2.3.5 Labao wfs camera covers and labao shutters\\ |
\\ | \\ | ||
- | 2.3.6 M10 Alignment | + | Put the Covers on gently when doing the following |
- | + | ||
- | 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] to change view to the M10 alignment | + | |
- | \\ | + | Take covers off after you remove the corner cubes from their bases.\\ |
- | 2.3.7 Labao wfs camera | + | |
- | \\ | + | |
- | **Put the Covers on** gently when doing the following alignment steps in the lab: IR mirror check to CLIMB or MIRC with alignment laser or beam combiner alignments with white light source or tiptilt Zabers alignment with alignment laser. | + | |
- | + | ||
- | **Covers | + | |
\\ | \\ | ||
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 the labao cameras (just like in the tiptilt camera) whenever ND=0 alignment laser is going through the system, but this is not harmful as long as the labao shutters are closed. While observing none of the labao shutters need to be or should be opened. As usual, dim the laser after you are done with the pop change to protect any camera in the lab from ghost reflections and scattered laser light. | 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 the labao cameras (just like in the tiptilt camera) whenever ND=0 alignment laser is going through the system, but this is not harmful as long as the labao shutters are closed. While observing none of the labao shutters need to be or should be opened. As usual, dim the laser after you are done with the pop change to protect any camera in the lab from ghost reflections and scattered laser light. | ||
- | 2.4 Alignment of the IR light toward beam combiners | + | 2.3.6 Alignment of the IR light toward beam combiners |
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.\\ | 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 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, the same target should be placed in the clamps on the MIRCX table. Place the target to the appropriate table, making sure it seats firmly in the clamps. 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/ | + | For MIRCX, the same target should be placed in the clamps on the MIRCX table. Place the target to the appropriate table, making sure it seats firmly in the clamps. Cover the labao cameras if the labao server is running. 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 in the menu 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. Note that the IR picos move the beam the opposite direction that is labeled. Clicking of the picos can be heard when they are moving. When done for all telescope to be used, remove target and place it above the CLASSIC/ |
- | 2.5 Starting | + | \\ |
+ | 2.3.6 M10 Alignment if there is no pop change | ||
+ | |||
+ | If there is a pop change, these steps will be performed in the control room. Skip ahead to Section 2.4. | ||
+ | |||
+ | 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 spot in beam on the black reference spot. (Note that S2 has a double spot in the center and a single spot to the lower right. The double spot is the correct one.) You may need to adjust the IRIS or the TV brightness to see the bright spot well. [BEAM] cycles the iris from open to closed and gives a good idea of where the center of the spot is. 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. These alignments can also be done in the control room or by the observer. If they are not done with the other alignments, please let the observer know they need to be done before observing. | ||
- | Go to OPLE racks and turn on OPLE Power on top unit (top of left most rack) This is the VME. 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.\\ | ||
- | To test cart motions: On computer outside lab, bring up Primary Ople Server, type in " | ||
- | Check delay line wires on carts, make sure nothing is on tracks\\ | ||
\\ | \\ | ||
+ | 2.4 Final steps in the lab | ||
+ | |||
+ | 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 cover on camera. Note which filter is reported on the filter wheel. The NIRO CPU has clock troubles so it might be beneficial to power the computer on using the [NIRO CPU] button RACK_2 on the POWER gui. If all 3 LED's on the back of the computer are lit, with the green LED's blinking slowly and quickly, then the clock is likely correct. | ||
+ | |||
+ | If using MIRCX/ | ||
+ | |||
On the Metrology table inside the lab, turn on two blue amplifiers for metrology laser (on button is labeled " | On the Metrology table inside the lab, turn on two blue amplifiers for metrology laser (on button is labeled " | ||
- | 2.6 Final steps in the lab | + | Make sure all lights are turned off in the ople room and the lab when leaving the inner lab. |
+ | |||
+ | Be sure to inform the MIRCX/ | ||
+ | |||
+ | 2.5 Starting up the new OPLE system and Metrology (Added 08/10/21 - Chris) | ||
+ | |||
+ | Go out to the computer area, turn the metrology laser on. | ||
+ | |||
+ | Check sockman for old OPLE" | ||
+ | |||
+ | You can start the new ople gui from the menu system, called OPLESystem or with the following command | ||
+ | |||
+ | ssh -Y ople / | ||
+ | |||
+ | 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. | ||
+ | |||
+ | {{https:// | ||
+ | |||
+ | When the laser is on, the circle marked Laser will be green and the wattage listed will be 65-80mw (instead of ~20mW when off) | ||
+ | |||
+ | All the circle indicators start out grey. | ||
+ | |||
+ | 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 is green, you can proceed to the next step. | ||
+ | |||
+ | 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 to start and will need to be powered on manually by the rocker switch behind the right, front cover of the E1 ople computer) | ||
- | 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 cover on camera. After lab is completely setup, you need to take off tiptilt cover if using lab tiptilt, but do so with only the dim lights on and the laser shutter closed so as not to blast CCD with light. | + | 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 green. Once all 6 are green, you need to close the gui and reopen it in the control room. |
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=== Setting up Computer in the Control Room === | === Setting up Computer in the Control Room === | ||
- | Updated | + | Updated |
3.1 General Overview of Control Room computer setup | 3.1 General Overview of Control Room computer setup | ||
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3.2 Setting up for observing | 3.2 Setting up for observing | ||
- | Turn on the following from the POWER GUI: To change the setting on the power GUI, unclick LOCK, make change, re-click LOCK. 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 with CLIMB, turn on [NIRO CPU] on RACK_2 and [CLM-DITH] on RACK_3. For each telescope | + | Start the OPLE server. 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. |
+ | |||
+ | The following windows should be opened on computer screen 1 (these are usually kept open all the time): Telescope monitor, Beam Samplers and PoPs, Visbeams, Shutters and Laser Filter Wheel, Iris, Metrology Laser and Metrology Monitor, Sockman, Pico 2, Power, Weather gui and graph, and a terminal for opening popperigtk. | ||
+ | |||
+ | 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 | ||
+ | * 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 | 3.3 Servers required for observing | ||
- | Servers can be opened from the pop up menu at bottom of screen 1, using the black platter icon or using the Observation Setup icon which opens them all automatically. The GPS server and the METROL | + | Servers can be opened from the pop up menu at bottom of screen 1, using the black platter icon or using the Observation Setup icon which opens them all automatically. The GPS, METROL |
- | 3.4 Open Telescope guis, or obsgtks from icons on desktop | + | 3.4 Open Telescope guis, or obsgtks from menu |
- | 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 VEGA or PAVO programs are observing. | + | 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. |
- | 3.6 Using the Cosmic Debris job sequencer | + | 3.6 Metrology laser and homing |
- | 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. | + | <font 14px/Arial,Helvetica,sans-serif;;# |
- | Set the instrument and settings on Cosmic Debris. On the " | + | |
- | Establish connection between tiptilt and the telescopes. On the Control Tab on Cosmic Debris, click on [TIPTILT COMM]. Click [START JOB QUEUE] on CD to continue | + | |
- | Finish setting up tiptilt GUIs. Click re-open on the Tiptilt GUI. This will update the TT labels on the TT viewing screens from B1,B2,etc to the telescope names. Click on the [SERVO CONTROL] tab on the tiptilt GUI to bring up a second window and move to screen 5 with the telescope guis. 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 | + | <font 14px/ |
- | Make sure that no one is in the lab. Turn the Laser on using the metrology laser GUI. The [Laser Power] button will go from red to green. 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 to close it. Select REFALL and the UNK signal for each cart being used. Hit " | + | If using the CHAPMtoMet feature, once the OPLE server has fully started, please check sockman for CHAMPtoMet. If it is running, then MIRC is ok to start. If it is not running, log into the ople computer and run the command : CHAMPtoMet This is case sensitive. This is not the usual mode of controlling |
- | Home each of the active | + | |
+ | 3.7 Setting up the Cosmic Debris job sequencer | ||
+ | |||
+ | 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 "PoPs" | ||
+ | Set the instrument | ||
3.8 Synchronizing the clocks | 3.8 Synchronizing the clocks | ||
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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' | 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' | ||
- | 3.9 | + | 3.9. Beacon Alignments |
- | The following windows should | + | The beacons wil<font 14px/ |
- | 3.10 | + | 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. |
+ | |||
+ | The blue beacon is no longer an LED and has been replaced by a tunable laser with its own gui. | ||
+ | |||
+ | Start the control GUI for the blue beacons from a terminal on any CHARA computer by typing tunable_beacon | ||
+ | |||
+ | In the WFS GUI or obsgtk, turn the cooler on (COOL ON) and open the camera shutter (SOPEN) or SHUTTER (OPEN/ | ||
+ | |||
+ | **NOTE: | ||
+ | |||
+ | 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. Load the default boxes with the [DEFBX] button, then move them to center on the beacon when it is centered in the ACQ hole. This ensures 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 the step if needed. | ||
+ | |||
+ | 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.** | ||
+ | |||
+ | 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 that are not from the beacon. Use the Dichroic controls to make the laser spots match the blue beacon spots on the ACQ camera view. Use large steps such as 2500 to bring the spots together. Up is to the upper right in the ACQ view at STOW. If they are way off or not visible in the ACQ, you can hit the button for the appropriate dichroic in the HUT gui and it will set the dichroic to its last saved default position. | ||
+ | |||
+ | 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. | ||
+ | |||
+ | See the instruments page for information about starting different instruments at the beginning of the night: \\ [[: | ||
- | See the instruments page for information about starting different instruments at the beginning of the night:\\ | ||
- | [[: | ||
- | \\ | ||
- | [[: | ||
- | \\ | ||
- | \\ | ||
- | **Chapter 4: ** | ||
=== Observing Conditions === | === Observing Conditions === | ||
- | \\ | + | \\ |
4.1 Observing Conditions Intro | 4.1 Observing Conditions Intro | ||
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4.2 Humidity | 4.2 Humidity | ||
- | 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. 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); 2) cold, clammy feel to metal objects such as railings; and 3) dew forming on the parked cars. It is important to note that the humidity can rise from 50% to 80% in as little as 10 minutes, so please keep a close eye on the rate of change of the humidity plots. It can also rain or hail from small, passing clouds when the humidity is quite low, even 40% RH or lower. Operators have been surprised before by small puffy clouds in unsettled air with low humidity. If in doubt, stay closed. The HPWREN webcams are a good resource to view the bottoms of clouds. If there is any virga, the clouds are holding moisture and try to rain out. Stay closed if you see anything streaming below the clouds. | + | 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); 2) cold, clammy feel to metal objects such as railings; and 3) dew forming on the parked cars. It is important to note that the humidity can rise from 50% to 80% in as little as 10 minutes, so please keep a close eye on the rate of change of the humidity plots. It can also rain or hail from small, passing clouds when the humidity is quite low, even 40% RH or lower. Operators have been surprised before by small puffy clouds in unsettled air with low humidity. If in doubt, stay closed. The HPWREN webcams are a good resource to view the bottoms of clouds. If there is any virga, the clouds are holding moisture and try to rain out. Stay closed if you see anything streaming below the clouds. |
4.3 Dust | 4.3 Dust | ||
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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. | 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. | ||
- | 4.5 Snow | + | 4.5 Snow and cold weather |
- | 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). | + | Because of the nature of the snow that falls on Mount Wilson, it is usually not a problem.* (Winte 2023 would like to speak with you.) 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. |
- | 4.6 Essential Observing Links | + | 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. |
- | 150-Foot Solar Tower Current TowerCam Image ([[http:// | + | Temp_warning: |
- | Caltech Millikan Library Camera ([[http:// | + | Hard_limit: T_tel < 0C or T_outside < -5C |
- | National Weather Service ([[http:// | + | 4.6 Essential Observing Links |
- | CHARA telescopes spy cams and weather graph ([[http://astro.gsu.edu/~weather/chara_scopes.html|http:// | + | Mount Wilson HP Wren Cameras |
- | Mount Wilson HP Wren Cameras | + | National Weather Service |
- | + | ||
- | Aerospace Corporation | + | |
- | Jet stream forecast ([[http://squall.sfsu.edu/scripts/jetstream_modelsml_fcst.html|http://squall.sfsu.edu/scripts/jetstream_modelsml_fcst.html]]) Monitors high level winds which degrade seeing | + | Mount Wilson Ambient station |
- | IR satellite loop ([[http://www.wrh.noaa.gov/lox/scripts/ | + | Jet stream forecast |
- | California Regional Weather Server ([[http://squall.sfsu.edu/|http://squall.sfsu.edu/]]) A variety of weather links | + | IR satellite loop [[https://www.star.nesdis.noaa.gov/GOES/ |
Clear Sky Clock ([[http:// | Clear Sky Clock ([[http:// | ||
- | \\ | + | \\ [[: |
- | [[: | + | |
- | \\ | + | |
- | \\ | + | |
- | **Chapter 5:** | + | |
=== Going on Sky === | === Going on Sky === | ||
- | 5.1 Opening the Telescope Domes and enclosures\\ | + | 5.1 Opening the Telescope Domes and enclosures \\ \\ |
- | \\ | + | You can begin opening the telescope domes and enclosures |
- | You can begin opening the telescope domes and enclosures | + | |
- | 5.2 Opening | + | Opening the M5 mirror cover also helps to cool the AO box by allowing |
- | \\ | + | |
- | When the sun has set and before it is dark enough to slew to your first target, you can begin opening the telescope optics. Open the telescope optics one by one using the Control Tab on the Telescope GUIs: [M1 OPEN] - opens the primary | + | |
- | 5.3 Check the OPLE carts\\ | + | [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 to open to .300 and then wait for the sun to go down. |
- | \\ | + | |
+ | 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 optics. Open the telescope optics one by one using the Control Tab on the obsgtk: [M1 OPEN] - opens the primary mirror cover (takes ~ 3 minutes to open), [M3 OPEN], and [FIND OPEN] if you want the finder. Note that the W2 and E1? finder covers require two clicks of the [OPEN] button to fully open. Monitor progress of the M1 and M3 covers by using [SPY2] camera on the telescope TV screens. Wait for all covers to open. The Telescope Monitor reports the status of all mirror covers. Close and reopen the Telescope Monitor if it reads UNKNOWN for a telescope, even after hitting REOPEN. | ||
+ | |||
+ | 5.3 Check the OPLE carts \\ \\ | ||
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 " | 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 " | ||
- | 5.4 Turn on the telescope power\\ | + | 5.4 Turn on the telescope power \\ \\ |
- | \\ | + | 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 \\ |
- | 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\\ | + | On the Power GUI, turn on the [Tel AZ] and [Tel EL] power for each of the active scopes (green means ON). \\ |
- | 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. | 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. | ||
- | 5.5 Slewing to a Target Using Cosmic Debris\\ | + | 5.5 Slewing to a Target Using Cosmic Debris \\ \\ |
- | \\ | + | It is typically dark enough to lock on your first star roughly |
- | It is typically dark enough to lock on your first star if TT reports ~ 1000 counts while not point at anything (sky counts) with the SpyCams turned off. This is roughly | + | |
- | 5.6 Locking Tiptilt | + | Enter the HD number of the star into Cosmic Debris using the Object or Calibrator Tabs. Click the [HD] button to register the entry. (Alternatively, |
+ | |||
+ | 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 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 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 to the ACQ window and repeat. | ||
+ | |||
+ | **NOTE: | ||
+ | |||
+ | 5.6 Locking Tiptilt using the telescope WFS | ||
+ | |||
+ | See [[: | ||
+ | |||
+ | Before locking the star, align the twfs to the red beacon, align the blue beacon to the labao, focus the labao and then focus the twfs as shown before. Turn off the red LED and you are ready to lock the star. | ||
+ | |||
+ | 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 | ||
+ | |||
+ | <font inherit/ | ||
+ | |||
+ | <font inherit/ | ||
+ | |||
+ | <font inherit/ | ||
+ | |||
+ | 5.7 Locking Lab Tiptilt (only used in special cases) | ||
+ | |||
+ | See [[: | ||
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. 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 starts the Tiptilt servo for all active scopes with one push of a button. On the Tiptilt Servo Control GUI, turn tiptilt [ON] for each telescope or use the [TT ON] button on Cosmic Debris to perform this function for all active scopes. | 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. 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 starts the Tiptilt servo for all active scopes with one push of a button. On the Tiptilt Servo Control GUI, turn tiptilt [ON] for each telescope or use the [TT ON] button on Cosmic Debris to perform this function for all active scopes. | ||
+ | |||
+ | Offloading DM Tilt to M7 | ||
+ | |||
+ | Old method: DMTILT is gray (reconstructor ignores tilt). M7AUTO will adjust M7 to keep blue beacon centroids aligned to labAO WFS. | ||
+ | |||
+ | 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. | ||
Acquisition Laser Alignment if the star does not lock in Tiptilt | 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 " | + | 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 " |
- | \\ | + | |
5.7 Finishing the slew sequence | 5.7 Finishing the slew sequence | ||
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 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 MAIN tab on the obsgtk and clicking the red [INIT] button. 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. | 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 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 MAIN tab on the obsgtk and clicking the red [INIT] button. 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. | ||
- | \\ | + | 5.8 Monitoring MIRCX/ |
- | [[: | + | |
- | \\ | + | When running MIRCX/ |
- | **Chapter 6:** | + | |
+ | \\ [[: | ||
=== Procedure for Shutting Down at the End of the Night === | === Procedure for Shutting Down at the End of the Night === | ||
- | 6.1 End Night Sequence Introduction\\ | + | 6.1 End Night Sequence Introduction \\ \\ |
- | \\ | + | |
The End Night sequence on Cosmic Debris can be used to end observing and stow the telescopes, carts, and domes and close the mirror covers. 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, 6.4 Manually Stowing the Telescopes | The End Night sequence on Cosmic Debris can be used to end observing and stow the telescopes, carts, and domes and close the mirror covers. 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, 6.4 Manually Stowing the Telescopes | ||
6.2 Start the end night sequence on Cosmic Debris | 6.2 Start the end night sequence on Cosmic Debris | ||
- | 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 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.\\ | + | 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 |
- | 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. When the function works, you can also hit the SEND button at the bottom of the report to email this report to the CHARA OBS list.\\ | + | 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 |
- | 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.\\ | + | 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. \\ \\ |
- | 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: \\ |
- | \\ | + | |
- | 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 | CHARA Electronic Logs | ||
- | 6.3 Shutdown Checklist Introduction\\ | + | 6.3 Shutdown Checklist Introduction \\ \\ |
- | \\ | + | |
It is important to make sure the array gets shutdown properly at the end of the night. This includes stowing the telescopes, closing the mirror covers and domes, powering down equipment, and covering the cameras. Each day many employees are working on various systems from any number of different locations around the Array. Any CHARA equipment left on or exposed, can cause damage to other systems or be damaged itself. It is critical that the array is shut down consistently from night to night. Listed below are the procedures for shutting down the array. Please make sure that the Array is secure at the end of the night. | It is important to make sure the array gets shutdown properly at the end of the night. This includes stowing the telescopes, closing the mirror covers and domes, powering down equipment, and covering the cameras. Each day many employees are working on various systems from any number of different locations around the Array. Any CHARA equipment left on or exposed, can cause damage to other systems or be damaged itself. It is critical that the array is shut down consistently from night to night. Listed below are the procedures for shutting down the array. Please make sure that the Array is secure at the end of the night. | ||
6.4 Manually stowing the telescopes | 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 reach an elevation above 50 degrees, you can begin closing the mirror covers. M1 CLOSE, M3 CLOSE, M5 CLOSE, M7 CLOSE, Finder CLOSE Note that W2 and E1? finder covers and the W1 and W2 M7 covers need a second click to close. Visually inspect the telescopes using SPY2 to make sure that the mirror covers close properly. Check the Telescope Monitor for mirror cover status. After the M1, M3 and finder mirror covers finish closing, close the dome slits by clicking [SLIT CLOSE] on the telescope control tab for each telescope dome that is open. 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 in the spycams to make sure all covers and slits are closed. Leave the telescope GUIs open until the End Night Sequence is finished. (Cosmic Debris will turn on the TVs and the Spy Cam 2 during the End Night Sequence.) If the humidity is high, make sure that the heaters are turned on. | + | 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 reach an elevation above 50 degrees, you can begin closing the mirror covers. M1 CLOSE, M3 CLOSE, M5 CLOSE, M7 CLOSE, Finder CLOSE Note that W2 and E1? finder covers and the W1, W2, and S2 M7 covers need a second click to close. Visually inspect the telescopes using SPY2 to make sure that the mirror covers close properly. Check the Telescope Monitor for mirror cover status. After the M1, M3 and finder mirror covers finish closing, close the dome slits by clicking [SLIT CLOSE] on the telescope control tab for each telescope dome that is open. 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 and disable the scopes using the dome gui or obsgtk. Visually check all telescopes in the spycams to make sure all covers and slits are closed. Leave the telescope GUIs open until the End Night Sequence is finished. (Cosmic Debris will turn on the TVs and the Spy Cam 2 during 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 | 6.5 Send the OPLE carts to the back of the rails | ||
- | 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 " | + | 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 " |
6.6 Finish shutting down in the control room | 6.6 Finish shutting down in the control room | ||
- | If using Classic or CLIMB, check to make sure the dither is off by looking at the dither status in the CLASSIC/ | + | If using Classic or CLIMB, check to make sure the dither is off by looking at the dither status in the CLASSIC/ |
- | 6.7 Shutting | + | Shut down the ople control system |
- | \\ | + | |
- | Go to the lab and close the vacuum valves for all telescope lines (valve handle turned perpendicular to the tube). 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. Lock the padlock.\\ | + | Close the OPLE server. |
- | In the computer area of the lab: Turn off the Burleigh amplifiers, the amplifiers for cart movement, and the cable pullers. 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: With the dim lights on, 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 " | + | |
- | 6.8 Odds and ends.\\ | + | 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. |
- | \\ | + | |
- | 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. Close OPLE building doors; they tend to stick open, please | + | 6.7 Shutting down the Lab \\ \\ |
- | \\ | + | Go to the lab and close the vacuum valves for all telescope lines (valve handle turned perpendicular to the tube). 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 Craig, Victor or Steve know of any concerns. Lock the padlock. \\ |
- | [[: | + | 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 " |
+ | |||
+ | Check the 6 ople computers and RPC's for any components that were not turned off in the OPLESystem Control gui shutdown sequence. Any + signs on the power controllers indicate power was left on. E1 computer is usually on. Push the Off button to turn off the component that is on. Scroll left and right using the UP/DOWN buttons to move to each + sign. 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 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 | ||