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chara:night_time_pop_changes [2018/07/05 09:39] jones |
chara:night_time_pop_changes [2020/01/21 21:30] charaobs |
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- | ======Night-time POP Changes====== | + | ====== Night-time POP Changes ====== |
- | __**Instructions for Changing PoPs During the Night**__\\ | + | |
+ | __**Instructions for Changing PoPs During the Night**__ | ||
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+ | This page has been updated JAN 2020 to reflect the use of the new obsgtks and POPPERIGTK for pop changes. | ||
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+ | (The old version can be found by logging into the wiki and selecting the old revisions icon on the right.) | ||
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+ | It is proper protocol for the PI's, remote or visiting scientists to announce any PoP changes 10 minutes before needed so the operator can bring up the required windows. Please give the PoP's for only the telescopes that need changing. Use this format: E1 → 1, E2 → 2, W1 → 5, etc. Give the desired PoP only. | ||
* Unlock Tiptilt on all beams using the Tiptilt Servo GUI. | * Unlock Tiptilt on all beams using the Tiptilt Servo GUI. | ||
* If the telescopes are still pointing at a star, make sure to periodically check the AZ/EL status on the telescope servers during the POP change procedure. If the telescopes ever get too low or start drifting, click [STOW] to safely stow the telescopes until after the POP change finishes. | * If the telescopes are still pointing at a star, make sure to periodically check the AZ/EL status on the telescope servers during the POP change procedure. If the telescopes ever get too low or start drifting, click [STOW] to safely stow the telescopes until after the POP change finishes. | ||
- | * Make sure that the cart involved is further back than the home sensor. | + | * Make sure that the cart involved is further back than 2 meters. |
- | * Close the M5 cover on each telescope that needs a POP change using the telescope gui Control Tab. | + | * Close the M5 cover on each telescope that needs a POP change using Control Tab. |
- | * Make sure the telescope TVs are on and click [M10AL] on the Main Tab on each telescope GUI. | + | * Go to the M10 camera with the M10AL button |
- | * Under ESP Controllers menu, open " | + | |
- | * Under Pico Controllers menu, open "Pico #2" | + | |
* Open the POPs GUI. Click [Overview] to bring up the overview to see the status of which POPs are in. | * Open the POPs GUI. Click [Overview] to bring up the overview to see the status of which POPs are in. | ||
- | | + | |
- | * "--" means the POP mirror is in place, " | + | * "–" means the POP mirror is in place, " |
- | * If the POP overview reports nonsense, then click " | + | * If the POP overview reports nonsense, then click " |
* Send VisBeams to the correct pair of telescopes that you need to adjust. | * Send VisBeams to the correct pair of telescopes that you need to adjust. | ||
- | * Open the " | + | * Open the " |
* Turn the Laser Filter to "ND 0.0". | * Turn the Laser Filter to "ND 0.0". | ||
- | * Check to make sure the counts are not saturating on the TT server (< | + | * Check to make sure the counts are not saturating on the TT server (< |
- | * You should now see the laser appear on the " | + | * You should now see the laser appear on the " |
- | * If the laser beam is far away from the center spot, you can adjust before changing the POP. For example, if you are working | + | * Open the POPPERIGTK |
- | * Now that the laser is aligned, it is time to change the POPs. | + | * Click the PoP you want and both the PoP mirror and periscope |
- | * Look at the POP Overview to check which POP is currently in (the uppermost POP listed as " | + | * During the process above, the laser beam will have disappeared from the " |
- | * On the POP GUI, select the telescope and PoP mirror that needs to go in. For instance, if you need to put in E1-POP2, then select " | + | * After each telescope is complete |
- | * If there are any POPs in that are in front of the selected POP mirror, then those mirrors | + | * You will need to finish the alignment by adjusting the M10 mirror. |
- | * Note that POP5 = END is ALWAYS IN and listed as " | + | * Make sure the POPPERIGTK powers are off to each scope when finished as the spot can move slightly when it is turned off. |
- | * During the process above, the laser beam will have disappeared from the " | + | * Click UP/ |
- | * Find the PoP Change Cheat Sheet that is kept between the speaker and VEGA computer on the left side of the monitors. Find the correct telescope chart and the PoP change combination that you are making, eg. E1 PoP 1->2. Take the value in the " | + | |
- | * Find the "POP Change Short Procedure" | + | |
- | * To move the periscope, click the red button for the telescope | + | |
- | * When finished, turn the periscope power off by clicking the green power button for the telescope on the PERI1 or PERI2 GUI. The power button for that periscope will turn back to red. | + | |
- | * You will need to finish the alignment by adjusting the M10 mirror. | + | |
* Close the shutter for that telescope beam using the SHUTTERS GUI. | * Close the shutter for that telescope beam using the SHUTTERS GUI. | ||
- | * Open the M5 cover for the telescope. Click ACQ or FIND on the telescope GUI to send the TV back to the window you desire. | + | * Open the M5 cover for the telescope. Click ACQ to get back to the ACQ view. |
* Repeat the above procedure for each telescope that needs a POP change. | * Repeat the above procedure for each telescope that needs a POP change. | ||
- | * After you finish, make sure you change the laser filter back to "ND 3.0". Close the " | + | * After you finish, make sure you change the laser filter back to "ND 3.0". Close the " |
* Check the POP Overview to make sure all the POPs are correct. Go to Configuration Tab on Cosmic Debris and click " | * Check the POP Overview to make sure all the POPs are correct. Go to Configuration Tab on Cosmic Debris and click " | ||
* If you are staying on the same star, go the OPLE GUI and click the [STOP] button at the bottom of the Control Tab. Then click [START] at the bottom of the same tab to restart astrolib in order to send carts to the correct positions for the updated POPs. | * If you are staying on the same star, go the OPLE GUI and click the [STOP] button at the bottom of the Control Tab. Then click [START] at the bottom of the same tab to restart astrolib in order to send carts to the correct positions for the updated POPs. | ||
- | * Make sure the periscope powers are off (red). Close the PER1, PERI2, PICO2, and PoPs GUIs. | + | * \\ Updated 10-22-2016 \\ \\ __**Troubleshooting**__ |
- | * Update the new POPs on the white board. | + | |
- | \\ Updated 10-22-2016\\ \\ __**Troubleshooting**__\\ \\ **1. A pop mirror does not move IN or OUT**\\ \\ When a pop mirror does not move IN or OUT when clicking on the gui, the most likely | + | |
- | - 1. Check the small “POP Mirror Control Box” next to the troubled pop underneath the delay line rails. {{chara: | + | - 1. Check the small “POP Mirror Control Box” next to the troubled pop underneath the delay line rails. {{:chara: |
- | \\ | + | |
- | - 2. Slide the CONTROL switch on the box to “Local”. The red “Timeout” led will most likely turn ON and may be one of the green ones (Fwd or Rev limit) indicating the current position of the pop. {{chara: | + | - 2. Slide the CONTROL switch on the box to “Local”. The red “Timeout” led will most likely turn ON and may be one of the green ones (Fwd or Rev limit) indicating the current position of the pop. {{:chara: |
- | \\ \\ | + | |
- | - 3. Disconnect all the cables; take the box off the velcro and to a convenient place. Unscrew the four Philips screws at the corners and slowly take off the lid. Do not disconnect the wires inside the box. On the backside of the lid you will see two fuses. Set the meter to beeping mode and check the contact between the two ends of each fuse. ( Fig. POP-trouble 3-4 )\\ A beeping fuse is good. You have to replace the fuse, which does not beep. It could be that both of them were blown. {{chara: | + | \\ |
- | \\ | + | |
- | - 4. This is the type of fuse that you have to use. Look for the cardboard box labeled “Pop Control Box Fuses” in the BC lab; spare fuses are in there. {{chara: | + | |
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- 5. Use tweezers to take out the blown fuse from its holder, and insert a new one. Put the lid back; be mindful of the right orientation with respect to the connectors. (Look at the first picture.) Secure the lid with the screws, and attach the all the connectors. | - 5. Use tweezers to take out the blown fuse from its holder, and insert a new one. Put the lid back; be mindful of the right orientation with respect to the connectors. (Look at the first picture.) Secure the lid with the screws, and attach the all the connectors. | ||
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- 6. Test the box in “Local” mode. Slide the command switches to FWD: 0 1 0 or REV: 0 1 1 to get the mirror moving and hit the Enter button. Wait until the green limit switch led lights up. When the mirror goes against the hard stops, a clinking sound can be heard from the pop box. | - 6. Test the box in “Local” mode. Slide the command switches to FWD: 0 1 0 or REV: 0 1 1 to get the mirror moving and hit the Enter button. Wait until the green limit switch led lights up. When the mirror goes against the hard stops, a clinking sound can be heard from the pop box. | ||
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- 7. If the mirror still does not move as expected further investigation is needed, and probably the pop box has to be opened after letting air into the pipe. If the mirror moved as expected go to the next step. | - 7. If the mirror still does not move as expected further investigation is needed, and probably the pop box has to be opened after letting air into the pipe. If the mirror moved as expected go to the next step. | ||
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- 8. Slide the CONTROL switch to “Remote”. Make sure you did not leave anything on the rail. | - 8. Slide the CONTROL switch to “Remote”. Make sure you did not leave anything on the rail. | ||
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