APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Monday January 19, 2004 (MJD 53024) ---=== OBSERVING TEAM ===--- swing: Steph Snedden night: Jurek and Mike (Krzesinski and Harvanek respectively :))). ---=== OBSERVING PLAN ===--- Science! ---=== OBSERVING SUMMARY ===--- Most of the night lost due to high humidity. We managed however to get one plate done (1135) and got some useful exposures on next two. There was some problems with gGuider - see the log. ---=== OBSERVING LOG ===--- Swing: ====== Afternoon checkout went without problems. Spectrograph focus checked and adjusted. Details after the problems section. Night: ----- We've got high humidity again at the beginning of the night, it was sitting at 2.5 for two hours. We decided to open to get one exposure on plate 1135, (which required additional single exposure to be declared done), before telescope mirrors will cool down to the ambient temperature. 01:44Z cart2, plt 1135. We had to use fk5 stars and clear offsets to get the guider stars. Secondary mirror was still 2 C deg above ambient, we were checking frequently all alluminium surfaces around the telescope to be sure, that we will not get any frost on the telescope. Humidity at PT sensor was jumping up and down from 1.9 - 2.7. All surfaces were dry, but since secondary mirror temperature was dropping way faster than we expected, we shortened the exposure time down to 10 minutes. Then we closed the telescope. All telescope surfaces were dry, including telescope flat field petals. And we got s/n above 2 - we got this plate done! Our exposures under SOS for that plate showed up as plate ZERO. We had to use apofix to get them right. BTW, mirror temperatures were dropping after we closed the enclosure, so we were monitoring surfaces of the mirror inside the enclosure as well and switched the heater on. After a while (15-20) minutes mirrors temperature started to raise. 02:50Z Humidity is dropping. We switched fans on and opened enclosure doors. But then clouds covered the sky, anyway we'll give it a try. 03:21Z cart 5, plt 1641 (slithead latched, presure 90). fk5 used to find guide stars. We got problems with setting up guide stars in fibers, but it appeared to be connected with our mistake: we didn't notice that the gflat hasn't been taken on go to field. It happened, because after our last plate we didn't use instChange command (which resets settings to defaults for a new plate), but tcc track command to close the telescope. So sopGUI software didn't know that gflat should be taken on go to field. After we took gflat, we were able to set guide stars in fibers without any problems. ---------------------------------------------- gGuide question: we've got the following error message when we started guiding on the second plate this night: SOPGUI: startGuider 10 Using 10 second gcam exposures 2004-01-20 03:25:08Z: Using da centroider because flat does not exist 2004-01-20 03:25:08Z: Using da centroider because flattener does not exist 2004-01-20 03:25:08Z: Using da centroider because maskdark does not exist 2004-01-20 03:25:08Z: Using da centroider because dark does not exist 2004-01-20 03:25:08Z: Using da centroider because mask does not exist 2004-01-20 03:25:08Z: Using da centroider because fiberData does not exist Sky values: 138 138 guider frame 806 There were no such message on the first plate we've done tonight. gGuide on command was issued only at the beginning of the night - should we do this also before loading every next cartridge? See also below what we did on the second time we used the gGuider. ---------------------------------------------- Because of the above problem we turned gGuide off and used the old one. 04:35Z We closed again due to high humidity, our first exposure on that plate was declared as bad. 05:10Z Guess what - we opened again, humidity is low! And that Orion plate is still good for 1.5 hour. We had to use fk5 star. But that's very odd, since we setup for the same field 40 minutes ago and WE DID STICKY OFFSETS, so we expected that the guide stars will be on go to field. No, they weren't and we had to clear offsets to see the fk5 star! If someone has some idea about what had happened, please let us know. Here are time stamps from sopGUI: 05:12:47 84427 SOPGUI: loadCartridge -latest 5 1641 05:14:03 84427 SOPGUI: gotoField -gflat 05:16:49 84427 SOPGUI: gcam 15.0 no stars. 05:17:34 84427 SOPGUI: fk5InFiber -fiber 10 no fk5 star. 05:18:03 84427 SOPGUI: gcam 10.0 05:18:55 84427 SOPGUI: tccPut offset calib /pabs we cleared offsets 05:19:08 84427 SOPGUI: fk5InFiber -fiber 10 05:19:52 84427 SOPGUI: gcam 10.0 yes, we can see fk5 05:20:24 84427 SOPGUI: offsetADR 7.0 -5.0 0.0 05:20:39 84427 SOPGUI: gcam 3.0 05:21:01 84427 SOPGUI: offsetADR 3.0 2.0 0.0 05:21:10 84427 SOPGUI: stickyOffsets 05:21:18 84427 SOPGUI: gotoField 05:21:40 84427 SOPGUI: startGuider 10 05:22:55 84427 SOPGUI: tccSetFocus 275.0 05:23:52 84427 SOPGUI: stopGuider 05:24:07 84427 SOPGUI: preCalibs 1 1 --------------------------------------------- Since we went for the same field with the same cart/plt we decided to run gGuide, but this time, we switched it on and then loaded the cart and plate again. It worked fine - so we guess that we do need to start it on every time, before loading a new plate. Here is Orion plate 1641 observing sequence (seeing between 1.5 - 2"): offset ["] 05:31:28 84427 SOPGUI: doNextScience 1200 target 0 05:59:39 84427 SOPGUI: doNextScience 1200 sky +10 06:24:22 84427 SOPGUI: doNextScience 1200 target 0 06:50:02 84427 SOPGUI: doNextScience 1200 sky -10 We used 1200 integration time, because clouds were passing time to time during exposures. Total s/N collected in this two exposures: 6.5 07:26Z cart 6 plt 1598. No stars on slew, fk5 used. gGuide again refused to work when we didn't issued "gGuide on" before doing a loadC for the plate and the only information we saw, was: SOPGUI: startGuider 10 Using 10 second gcam exposures Sky values: 0 1 GUIDING USING FIBERS: 1 2 3 4 5 6 7 8 9 10 Computed errors: -0.821 (asec E) -0.091 (asec N) -39.4 (asec phi) 0.013 (percent scale) Running exposure number: 0 SOPGUI: stopGuider As you see there was no usual guider output and gGuider didn't do anything after that. So we stopped it and started to guide using the old one, this time for the rest of the night. arc and flat got yellow on precalib for that plate, and this is the same plate we used at the evening to check spectrograph focus. Temperature didn't change much and the gauge at sp1 showed 90 psi, slithead latches were latched - so why? The only thing which we can tell is diffrent, is the telescope position. We've got two good 20 min exposures on this plate, then humidity rose and clouds got thick. Our efficiency dropped below 19. So we decided to close. The exposure which was in progress was aborted. 08:40Z Telescope closed and due to humidity we never opened again. 12:05Z we run endNight it finished ok. ---=== IMAGING RUN SUMMARY ===--- Run Time Stripe Lambda Last Flavor Comments Start End Begin End Frame ------------------------------------------------------------------------- 4370 22:12Z 22:29Z 100 O 160.81 165.20 43 ignore ---=== 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): yes QA Procedures Done (y/n): yes UT Exp Time flavor comment (S/N)^2 totals ========================================== b1 r1 b2 r2 ----- sequence 24699, plate -9999 ------- 22:07 24699 0.0 bias ----- sequence 24700, plate 1598 ------- 22:19 24700 10.0 flat 22:22 24701 2.0 arc 22:25 24702 2.1 arc 22:28 24703 2.1 arc 22:44 24704 2.1 arc all here declared as test exposures. 22:46 24705 2.1 arc 23:03 24706 2.1 arc 23:05 24707 2.1 arc 23:29 24708 10.0 flat 23:32 24709 2.0 arc ----- sequence 24710, plate -9999 ------- 00:13 24710 0.0 bias 00:16 24711 0.0 bias ----- sequence 24712, plate 1135 ------- 01:41 24712 10.0 flat 01:43 24713 2.0 arc 01:58 24714 622.7 target ----- sequence 24715, plate 1641 ------- 04:11 24715 10.0 flat bad 04:14 24716 2.0 arc bad 04:28 24717 237.7 target bad 05:26 24718 10.0 flat 05:29 24719 2.0 arc 05:53 24720 1200.1 target 06:21 24721 1200.1 target 06:46 24722 1200.1 target 07:12 24723 1200.1 target 07:15 24724 10.0 flat 07:18 24725 2.0 arc ----- sequence 24726, plate 1598 ------- 07:38 24726 10.0 flat 07:40 24727 2.0 arc 08:04 24728 1200.1 target 08:28 24729 1200.1 target ---=== TELESCOPE OFFSETS AND SCALE I ===--- Time Instrument Az Alt Rot Scale pos offset pos offset pos offset ------------------------------------------------------------------------------ 01:51Z 2 1135 -49.10 0.0021 45.51 0.0004 140.47 0.0000 0.999960 05:35Z 5 1641 281.90 0.0054 67.01 0.0022 114.20 0.0000 1.000080 07:42Z 6 1598 55.03 0.0024 56.52 -0.0009 224.45 -0.0057 1.000160 ---=== TELESCOPE OFFSETS AND SCALE II ===--- ---=== DATA TAPE SUMMARY ===--- Goes: JL7158 Stays: JL7159 ---=== FOCUS LOG ===--- setmir piston Temp Wind Time Inst scale M1 M2 Foc Az Alt (C) MPH Dir filt fwhm ------------------------------------------------------------------------------ 01:51Z 2 1135 0.99996 395 1698 175 -49 45.5 -2.6 7 232 gdr 1.5 05:35Z 5 1641 1.00008 -790 733 250 282 67.0 -2.3 9 218 -/- 1.3 07:42Z 6 1598 1.00016 -1580 54 200 55 56.5 -2.4 3 274 -/- 1.3 ---=== WEATHER LOG ===--- Wind Time Temp F Dewp F MPH Direction Dust DIMM Sky 22:09Z 34 22 14 234 (SW) 0 - 22:39Z 33 21 6 249 (WSW) 0 - 23:12Z 31 22 7 269 (W) 0 - 23:44Z 31 21 9 255 (WSW) 0 - 00:16Z 28 23 8 244 (WSW) 0 - 00:47Z 27 22 8 260 (W) 0 - 01:18Z 27 23 7 250 (WSW) 0 - 01:49Z 27 23 7 240 (WSW) 0 - 02:20Z 27 20 2 267 (W) 0 - 02:51Z 28 20 3 264 (W) 0 - 03:22Z 29 17 6 266 (W) 0 - 03:54Z 28 20 4 250 (WSW) 0 - 04:24Z 27 23 7 214 (SW) 0 - 04:56Z 28 17 6 198 (SSW) 0 - 05:29Z 28 17 11 226 (SW) 0 - 06:01Z 27 19 5 265 (W) 0 - 06:33Z 28 17 7 270 (W) 0 - 07:06Z 27 19 8 279 (W) 0 - 07:38Z 27 20 6 271 (W) 0 - 08:09Z 27 21 6 264 (W) 0 - 08:42Z 27 22 7 286 (WNW) 0 - 09:14Z 26 23 6 270 (W) 0 - 09:46Z 26 22 2 281 (W) 0 - 10:19Z 26 22 3 262 (W) 0 - 10:51Z 25 23 3 263 (W) 0 - 11:23Z 26 21 5 266 (W) 0 - 11:55Z 26 23 6 266 (W) 0 - ---=== TELESCOPE STATUS ===--- 00:30Z Fans on, doors open. 01:25Z Telescope opened. 02:05Z Telescope closed, LN2 dewars refilled. Heaters on. 02:45Z Fans on doors open again. 04:36Z Telescope closed, hoses hooked up, heaters on. 05:10Z We reopened telescope. 08:36Z Telescope closed, hoses hooked up, heater on. ---=== SOFTWARE USED ===--- IOP/SOP: v3_125_1 Watcher: v2_26_0 MCP: v5_24_0 TPM: tpm_v2_36_0 AstroDa: v14_47 TCC: 14340900 packets sent successfully sdssProcedures: v1_82 SoS: v4_10_7 hoggPT: v1_6_9 plate-mapper: v4_3_1 ---=== MIRROR NUMBERS ===--- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A 0.5520 0.5420 Axial B 0.6380 0.6390 Axial C 1.0840 1.0900 Trans D -8.4570 -8.4610 Lateral E 10.8712 10.8966 Lateral F 10.8458 10.8712 GALILS Commanded: 4600. -2850. 850. -9250. 18400. 17850. Actual: 4600. -2866. 866. -9275. 18411. 17825. SETMIR VALUES PriDesOrient: 0.00 0.00 15.20 829.90 1.60 PriOrient: 0.00 0.00 14.91 830.49 3.19 SECONDARY: ---------- Focus: 0.00 Air Temp.: 0.2 Alt.: 30.210818 MIGS TONIGHT NOMINAL Axial A 1.5120 1.5160 Axial B 1.1070 1.1180 Axial C 1.1140 1.1210 Trans D -0.0030 -0.0050 GALILS Commanded: 1628537. 1548279. 1574364. -3900. -8750. Actual: 1628641. 1548187. 1574504. -3899. -8726. SETMIR VALUES SecDesOrient: 1257.00 0.00 -25.00 0.00 146.27 SecOrient: 1256.96 0.06 -24.95 0.30 146.52 ---=== PROBLEMS IN DETAIL ===--- Spectro focus: T=4.1C, cartridge 6 Before focus: sp1 sp2 A=+694 -29646 B=+1694 +10739 C=+594 +7703 Also adjusted b2 +10 degrees After focus: A=-4115 -35946 B=-3116 +4444 C=-4215 +1405