Subject: 2.5m obslog 20211115 (SJD 59534) From: kpan@apo.nmsu.edu Date: Tue, 16 Nov 2021 12:15:38 +0000 (UTC) APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Monday November 15, 2021 (SJD 59534) ---- Observing Team ---- Kaike Pan Karen Kinemuchi Aidan Gray ---- Observing Plan ---- collect FSC data, determine apogee dither position, fiducial data (if temperature <= 5C). ---- Observing Summary ---- It was a mostly clear night with good seeing. We acquired a set of data with FSC. The upper limit of the Apogee dither mechanism is at pixel 18.0. Not sure where is the lower limit switch, but for some reason, the dither mechanism would not move lower than 8.5 pixel. We also noticed that the offset is different while the dither mechanism is at the same pixel position as the last. At the current dither A position, pixel position 13, which corresponds to the pixel position 19, the offset is 4.97 tonight, it was 5.72 last night. We will keep monitoring the offset in next couple of night. A set of dithered evening cal was taken after the dither A position is redefined. Notes: ===== 1. The moveable range of the dither mechanism is much narrower than it used to be. With the current dither A position (at pixel 13), the moveable range of the dither mechanism is from pixel 8.5 to 17.5. The upper limit switch is at 17.5. ---- Observing Log ---- Afternoon: ========== All systems and actor are checked and confirmed work. 23:40Z: started ventilation. Night: ===== 00:10Z: open the enclosure. Aidan logged on 01:05Z. The FSC needs to be powered cycled before Aidan can connect to it. 01:25Z: The best focus was found at 275. The FWHM is 0.58". 07:00Z: move apogee dither 1 pixel per step to find the moveable range of the dither mechanism. When "apogee dither pixelpos=24" is entered, the apogee instrument GUI shows the dither only move to 23.94 pixels, and "Limit 0 1" shows up on the right of "dither 23.94 pixels". The next move "apogee dither pixelpos=25" returns "Dither 23.97 pixels Limits 0 1". offsets from the script "list_ap" also show the two moves put the dither mechanism at the same position. See below. 59534 2 07:10 39720002 Arc-Thar 8 ? 19.0 19- 0 a-b-c 4.95 - 59534 3 07:12 39720003 Arc-Thar 8 ? 20.0 19- 0 a-b-c 5.94 - 59534 4 07:14 39720004 Arc-Thar 8 ? 21.0 19- 0 a-b-c 6.99 - 59534 5 07:16 39720005 Arc-Thar 8 ? 22.0 19- 0 a-b-c 8.03 - 59534 6 07:18 39720006 Arc-Thar 8 ? 23.0 19- 0 a-b-c 9.05 - 59534 7 07:20 39720007 Arc-Thar 8 ? 23.94 19- 0 a-b-c 10.02 - 59534 8 07:26 39720008 Arc-Thar 8 ? 23.97 19- 0 a-b-c 10.04 - 59534 9 07:31 39720009 Arc-Thar 8 ? 19.0 19- 0 a-b-c 4.96 - 59534 10 07:33 39720010 Arc-Thar 8 ? 17.0 19- 0 a-b-c 2.94 - 59534 12 07:37 39720012 Arc-Thar 8 ? 15.0 19- 0 a-b-c 0.91 - 59534 13 07:40 39720013 Arc-Thar 8 ? 14.5 19- 0 a-b-c 0.53 - 59534 14 07:42 39720014 Arc-Thar 8 ? 14.0 19- 0 a-b-c 0.52 - 59534 15 07:45 39720015 Arc-Thar 8 ? 14.0 19- 0 a-b-c 0.52 - 59534 16 07:48 39720016 Arc-Thar 8 ? 15.0 19- 0 a-b-c 0.91 - 59534 17 07:50 39720017 Arc-Thar 8 ? 16.0 19- 0 a-b-c 1.90 - 59534 18 07:52 39720018 Arc-Thar 8 ? 18.0 19- 0 a-b-c 3.94 - 59534 19 07:54 39720019 Arc-Thar 8 ? 19.0 19- 0 a-b-c 4.96 - 59534 20 07:56 39720020 Arc-Thar 8 ? 20.0 19- 0 a-b-c 6.00 - 59534 21 07:58 39720021 Arc-Thar 8 ? 21.0 19- 0 a-b-c 7.03 - 59534 22 08:00 39720022 Arc-Thar 8 ? 21.0 19- 0 a-b-c 7.04 - With these data, we conclude that the upper limit switch is at the pixel 24. Not sure where is the lower limit switch, but for some reason, the dither mechanism will not move lower than 14.5 pixel although no limit switch is triggered there. Sounds like the moveable range of the dither mechanism is from 14.5 to 23.5.We decide to move the dither to the middle of the range 19.0, run "apogee dither init" to call the position dither A. We took a set of dithered evening cals. 9534 25 09:45 39720025 Dark 60 A 13.0 ------- a-b-c - - 59534 26 09:48 39720026 QuarFlat 10 A 13.0 19- 0 a-b-c - 100 59534 27 09:50 39720027 Arc-Thar 12 A 13.0 19- 0 a-b-c 4.84 - 59534 28 09:57 39720028 Arc-Une 40 A 13.0 19- 0 a-b-c - - 59534 29 09:59 39720029 Arc-Thar 12 B 13.5 19- 0 a-b-c 5.41 - 59534 30 10:06 39720030 Arc-Une 40 B 13.5 19- 0 a-b-c - - 59534 31 10:18 39720031 Dark 60 A 13.0 ------- a-b-c - - 12:15Z: call it the night. ---- Mirror Numbers ---- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A: 0.0070 0.0080 Axial B: 0.0090 0.0070 Axial C: -0.1180 -0.1230 Trans D: -0.0349 -0.0358 Lateral E: 0.3315 0.3315 Lateral F: 0.5345 0.5340 GALILS Commanded: 12500 -1600 5300 47050 -8800 -8400 Actual: 12500 -1600 5300 47050 -8800 -8400 SETMIR VALUES PrimDesOrient: 0.0 -59.5 -9.15 -512.0 1906.3 PrimOrient: 1.07 -59.51 -9.21 -512.13 1906.31 SECONDARY: ---------- Focus: 0.0000 Air temp: 11.67 Altitude: 30.0 MIGS TONIGHT NOMINAL Axial A: -9.4550 -9.4520 Axial B: -9.4630 -9.4620 Axial C: -9.4980 -9.4990 Trans D: 0.0950 0.0910 GALILS Commanded: 4631900 4624800 4649000 -50 -3450 Actual: 4607168 4606909 4607098 -50 -3450 SETMIR VALUES SecDesOrient: 3657.0 0.0 0.0 0.0 42.22 SecOrient: 3656.86 -0.03 -0.06 -0.04 42.7 ---- Telescope Status ---- 23:40Z Started ventilation 00:10Z encl25m : open 05:00Z encl25m : closed No interlocks bypassed Status at: 12:15Z Telescope stowed at: 121.0, 30.0, 0.0 mount Instrument mounted: cartridge = FSC Counterweights at: 556, 556, 575, 576 LN2 autofill systems: Connected and turned on 180L LN2 dewar scales: SP1 139 lbs, 15.5 psi ---- Software Used ---- -- STUI software: STUI : 1.7.13 alerts : 2.1.6 apo : 3.0.1 boss : 6.0.1-alpha.0 -boss.specMec : 3.0.4 guider : 4.0.0 ecamera : FAILED fliswarm : FAILED hartmann : FAILED hub : 5.0.0a0 mcp : 2.1 -mcp.plc : 34 -mcp.azFiduci : v1_147 -mcp.altFiduc : v1_147 -mcp.rotFiduc : v1_147 sop : 0.1.0-alpha.0 tcc : 1.4.0 apogee : not availble apogeecal : not availble apogeeql : v1_7_0dev STUIAdditions : 3.1.9