APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Saturday April 23, 2005 (MJD 53484) ---=== OBSERVING TEAM ===--- Atsuko Nitta (solo debut) The ET Team: Jian Ge (UF) Julian Van Eyken (UF) Support: Wendell Jordan Professor Connie Mike Harvanek ---=== OBSERVING PLAN ===--- Science! ---=== OBSERVING SUMMARY ===--- We got data on 3 plates. During the 4th plate, we closed due to clouds. We had patchy clouds which got worse over the night. The ODH sensor upstairs is unplugged. It went off while I was putting the first cart of the night on and did not shut off even after I opened the enclosure. Since it was obviously a false alarm, I thought it was ok to unplug it. ---=== OBSERVING LOG ===--- Spectro checkout: At around 00:30Z: 9C display weath air temp. 6-11C mirrors, depending on the sensors 9-11C sp1 9-10C sp2 The weather forecast says the temperate should be ~2-8C or so. Collimate showed we are in focus for the current temperatures and the predicted temperature tonight, so I did not adjust the collimation. Afternoon checkout went fine. I heard a buzzing noise coming from the sp1 Ln2 pressure gauge(?) couple times and the gauge's needle oscillated very fast. Spectro asked for LN2 while I was doing checkout. The spectros were filled before opening at sunset. When trying to get cart5 out of the bay, I had some difficulty. I could engage the cart with the manipulator, but could not pick it up. I then tried to get another cart out, but the same thing. Except, this time I could not free the manipulator any more. The manipulator will not go up or down. :( Since the hooks were already engaged to the cart, I could not pull it out either. I called Wendell. He had me check the elevator-in-bad-position light on the right side wall (if you are standing outside looking into the bay). The light was on. So the elevator was not in the position where it was suppose to be. Unfortunately, now that the manipulator arm refused to move off the cart6, the light curtain is broken by the manipulator, so I cannot move the elevator. And it seemed like without being able to move the elevator, the manipulator will not move. Wendell told me to power cycle the manipulator, which I did, and I was able to move the manipulator off cart6 and outside the bay. Phew. Then I moved the elevator up and down and this time it went to the correct position (the light on the wall did not come on). So we were in business to change cart. This cost about 30 min. The sun has set while I was struggling with the manipulator/elevator. While changing the cartridge the ODH sensor upstairs started to BEEEP BEEEP BEEEEP BEEEEP. Since we had both doors open and the fans going, I knew this was a false alarm. The alarm was going on while I opened the building and finally, I unplugged it. While I was at it, I checked the cone ODH sensor which showed, 20.5, a reasonable value and was not beeping. I wanted to make sure the downstairs one was working correctly since we have ET observers down there during the night. 02:20Z Open. Since the spectrographs needed to be filled before sunset, it dumped lots of LN2 when we opened. So we refilled the spectros upon opening. Cart 5 Plate 8012 ----------------- No stars on gotoField. So I used the offset from two nights ago and found them on my next gotoField. After focusing and scale change, ET team started their exposures. The FWHM is about 2" and variable. The sky is hovering around STD DEV 5-7 with a big full moon. 03:00Z Connie called to make sure all is well. I meant to send email to follow-up on the critical email that went out this evening, but I forgot. Thank you Connie. I got to ask her what the buzzing noise from the pressure gauge is and she told me it is probably the pop off. 03:40Z French called. We talked about ODH sensors. His team is trying to figure out what makes them misbehave. He also have known of the buzzing noise from the pressure gauge and is getting new parts. The drop of oil reported by Mike last night also is a known problem which Team French will fix soon (bright time or summer). Seeing gradually improved, reaching to 1.5"! Focus and scale were adjusted as needed. Mike dropped by to make sure I was surviving. I offered my shift, which he declined. 05:30Z Off to the next cartridge. Cart 6 Plate 8011 ------------------ stars on gotoField. The seeing still varies. 1.4-2.2". It is getting a bit chilly by the telescope. Clouds come and go. The seeing goes up and down. 06:25Z Starting to loose guide stars due to clouds. Increase the integration time to 20s. 06:33Z Guiding with 40s exposure time. 06:35Z Guiding with 60s exposure time. 06:54Z Back to 15s exposure time! 07:18Z 60s exposure time.... 07:28Z Time to go to the new plate. Cart 8 Plate 8013 -------------------- Since we were having patchy clouds above us, I started with fk5, using the offset from two nights ago. When the clouds thinned, I was able to see the fk5. After 10min or so, the clouds were thin enough and we got our guide stars. ET team took their middle of the night calibration data while I was waiting for the guide stars to show up. The guide stars sometimes disappeared even with 60s exposure due to clouds. The humidity has also been slowly climbing. ET team tells me that they got data! Wow. 09:30Z instChange Cart 4 Plate 8014 ------------------ fk5 with offsets from two nights ago. The clouds are thick. We managed to start guiding on guide stars before it got too thick to be seen. No stars with 60s exposures since 09:50Z or so. 10:10Z I decided to close. I have not seen any guide stars for 20min. The sky looks black, rather than grey from clouds+moon. I did not close the doors, just in case we get a break and can get more data on this plate. ET team took darks while waiting for the sky to be come out. 10:30Z The rain sensor went off. So I closed the doors of the enclosure. endNight finished happily. ---=== IMAGING RUN SUMMARY ===--- Run Time Stripe Lambda Last Flavor Comments Start End Begin End Frame ------------------------------------------------------------------------- ---=== IMAGING RUN DETAILS ===--- ---=== SKIPPY RESULTS ===--- Run Frame nFrames stars muErr muRms nuErr nuRms rot az el --------------------------------------------------------------------------- ---=== LTMATCH RESULTS ===--- Run Field nFields alt az nGood rowMean rowSig colMean colSig rot ------------------------------------------------------------------------ ---=== SPECTROSCOPY DATA SUMMARY ===--- Summary Checked (y/n):n QA Procedures Done (y/n):n UT Exp Time flavor comment (S/N)^2 totals ========================================== b1 r1 b2 r2 ----- sequence 32212, plate -9999 ------- 00:04 32212 0.0 bias ----- sequence 32213, plate 8015 ------- 00:16 32213 10.0 flat 00:19 32214 2.0 arc 00:22 32215 0.0 arc 00:25 32216 0.0 arc ---=== TELESCOPE OFFSETS AND SCALE I ===--- Time Instrument Az Alt Rot Scale pos offset pos offset pos offset ------------------------------------------------------------------------------ 03:04Z 5 8012 283.30 0.0042 73.11 0.0030 112.61 -0.0099 1.000200 05:56Z 6 8011 218.52 0.0026 54.97 0.0033 66.41 -0.0014 1.000120 08:31Z 8 8013 -23.40 -0.0017 54.36 0.0027 160.37 0.0000 1.000040 ---=== TELESCOPE OFFSETS AND SCALE II ===--- ---=== DATA TAPE SUMMARY ===--- Goes: JL Stays: JL ---=== FOCUS LOG ===--- setmir piston Temp Wind Time Inst scale M1 M2 Foc Az Alt (C) MPH Dir filt fwhm ------------------------------------------------------------------------------ 03:06Z 5 8012 1.00020 -1974 -58 450 283 72.8 4.2 10 120 gdr 2.0 05:56Z 6 8011 1.00012 -1185 345 160 219 55.0 6.5 13 138 gdr 1.5 08:31Z unknown 1.00004 -395 890 50 -23 54.4 5.6 19 165 ---=== WEATHER LOG ===--- Wind Time Temp F Dewp F MPH Direction Dust DIMM Sky 23:31Z 52 31 0 229 (SW) 1370 - 00:03Z 50 30 12 143 (SE) 1409 - 00:36Z 47 29 12 127 (SE) 1431 - 01:07Z 45 29 13 112 (ESE) 1409 - 01:40Z 42 28 11 107 (ESE) 1392 - 02:12Z 42 28 15 122 (ESE) 1353 - 02:43Z 40 28 8 116 (ESE) 1396 - 03:16Z 40 28 4 100 (E) 1272 - 03:48Z 41 28 17 127 (SE) 1370 - 04:21Z 41 28 17 129 (SE) 1336 - 04:53Z 42 29 19 127 (SE) 1201 - 05:25Z 42 29 16 132 (SE) 1151 - 05:55Z 43 29 13 137 (SE) 1230 - 06:25Z 42 29 10 166 (SSE) 1266 - 06:56Z 43 30 17 149 (SSE) 1276 - 07:28Z 43 30 18 156 (SSE) 1388 - 08:02Z 41 31 17 164 (SSE) 1449 - 08:34Z 41 31 18 170 (S) 1442 - 09:07Z 42 31 18 157 (SSE) 1441 - 09:38Z 44 33 21 167 (SSE) 1608 - 10:11Z 43 33 19 160 (SSE) 1348 - 10:43Z 43 35 23 173 (S) 1383 - ---=== TELESCOPE STATUS ===--- 00:15Z Fans on. 02:20Z Open, fans off. ODH sensor upstairs is unplugged. 10:10Z Enclosure on. 10:30Z Doors closed. Telescope at stow with cart 8 on. Spectro autofill connected. ---=== SOFTWARE USED ===--- IOP/SOP: v3_143_1 Watcher: v2_30_0 MCP: v5_26_0 TPM: tpm_v2_47_0 AstroDa: v14_47 TCC: TCC 2.7.2.1 August 6 2004 sdssProcedures: v1_99 SoS: v4_10_7 hoggPT: v1_6_9 plate-mapper: v4_3_1 ---=== MIRROR NUMBERS ===--- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A 0.5780 0.5770 Axial B 0.5900 0.5880 Axial C 0.9450 0.9460 Trans D -8.2010 -8.1960 Lateral E 10.0457 10.0330 Lateral F 11.6078 11.5951 GALILS Commanded: 4300. -1900. 2850. -13300. -7600. -7650. Actual: 4299. -1917. 2868. -13303. -7614. -7660. SETMIR VALUES PriDesOrient: 0.00 4.57 1.18 64.25 -249.76 PriOrient: 0.00 4.56 0.88 65.00 -249.58 SECONDARY: ---------- Focus: 0.00 Air Temp.: 9.7 Alt.: 30.002633 MIGS TONIGHT NOMINAL Axial A 1.5970 1.5680 Axial B 1.0760 1.0460 Axial C 1.1880 1.1590 Trans D -0.2130 -0.2020 GALILS Commanded: 1619535. 1606502. 1529287. -13800. -9950. Actual: 1619188. 1604973. 1528571. -13820. -9964. SETMIR VALUES SecDesOrient: 1257.00 27.97 -10.00 -90.00 257.89 SecOrient: 1257.69 28.11 -9.66 -89.72 257.41 ---=== PROBLEMS IN DETAIL ===--- ODH sensor by th south fork is unplugged. It beeped while instCHange and opening the enclosure at the beginning of the night. There was enough air and in no way deficient of O2. Wachcer errors: altitude (Windscreen touched in altitude: UP (2005-04-24 02:17:31Z sdssmcp): 2005-04-24 02:17:37Z ) azimuth (correction for azimuth -143889 is too large (2005-04-24 09:29:39Z sdssmcp): 2005-04-24 09:29:44Z ) --> This did not affect the pointing as we crossed another valid one before arriving to the field. rotator (correction for rotator -24825137 is too large (2005-04-24 05:37:18Z sdssmcp): 2005-04-24 05:37:38Z ) --> This did not affect the pointing since we crossed a valid correction before arriving to the field. m1 temp (Excessive Telescope - Ambient Difference:: 2005-04-24 02:20:24Z) env temp (Excessive Return - Ambient Difference:Excessive Floor - Ambient Difference: 2005-04-24 02:20:24Z ) tmicro (Disconnected Sensor in M2B4:: 2005-04-23 23:37:55Z) ca (Channel Access Failure: TPM Down?: 2005-04-24 04:48:20Z)