APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Saturday April 24, 2004 (MJD 53120) ---=== OBSERVING TEAM ===--- Night: Jurek Krzesinski, Pete Newman ---=== OBSERVING PLAN ===--- Science. ---=== OBSERVING SUMMARY ===--- Four main survey plates finished (1447, 1448, 1450, 1614) before moonset, then main-survey imaging (strips 23N, 24S). The last few degrees of strip 24S may be spoiled by poor seeing, and we ask for a judgement on whether the data is acceptable or needs to be reobserved. As morning twilight approached, and as we already had the imager mounted, we obtained the twilight imager drift-mode flat-field frames requested as part of tomorrow's shake-up. ---=== OBSERVING LOG ===--- Afternoon checkout ------------------ The focus of the spectrographs was adjusted, in particular the b1 focus ring required a significant shift. See end of log for details. Secondary mirror actuators D and E were homed per Engineering Phone-conference notes for 2004-04-21. The reported errors were 0 and 50 microsteps: acceptable. Night ----- Photometric and good seeing from sunset, but the Moon is up, so we start with spectroscopy. The change from the first to the second plate took 2m18s from instChange to gotoField - is this a new record? 8-) 03:44:44 40160 SOPGUI: instChange -noInit 03:45:45 40160 SOPGUI: loadCartridge -latest 4 1448 03:47:02 40160 SOPGUI: gotoField -gflat Observing sequence: 01:52Z Plate 1447, cartridge 3. Main survey. Done in 3 exposures, 2220s. FK5 used in bright twilight to center. 03:47Z Plate 1448, cartridge 4. Main survey. Done in 3 exposures, 2220s. Guide stars with previous offsets. Post calibs requested for camera r2 after we had already changed - not obtained. SoS also reported for this plate: sdR-r2-00026387.fit: WARNING: Max sky-residual chi2 = 69.7493 at 8960.66 Ang (ignoring 5577) 04:46Z Plate 1450, cartridge 1. Main survey. Done in 3 exposures, 2160s. Guide stars with previous offsets. 05:44Z Plate 1614, cartridge 5. Main survey. Done in 3 exposures, 2120s. Guide stars with previous offsets. 06:44Z Switch to imaging. See Imaging Details section below. We are leaving endNight running for day crew to check and retrieve tapes. Our first attempt at running endNight hung at the -gangCheck stage. We eventually traced this to the teamster being hung. We killed that process (using kill -KILL) and restarted a teamster. endNight then proceeded normally. ---=== IMAGING RUN SUMMARY ===--- Run Time Stripe Lambda Last Flavor Comments Start End Begin End Frame ------------------------------------------------------------------------- 4598 22:15Z 22:36Z 100 O -103.68 -98.43 45 ignore 4599 07:01Z 09:32Z 23 N -14.53 23.34 267 science 4600 09:37Z 10:54Z 24 S 49.88 69.06 138 science 4601 10:57Z 10:59Z 24 S 69.77 70.34 17 ignore 4602 11:00Z 11:17Z 100 O 88.08 92.27 42 bias T-bars unlatched 4603 11:21Z 12:01Z 100 O 93.22 103.40 81 calibration Twilight flat-fields 4604 12:10Z 12:17Z 100 O 105.60 107.36 26 ignore ---=== IMAGING RUN DETAILS ===--- Run 4599, Main survey strip 23N, -8.9 <= lambda <= 23.2 (incl. ramp up/down) Frame Lambda Comments ----- ------ ------------------------------------------ 11 -14.0 Start scan, but instant clouds (bout 07:00Z, the first today!). 14 -13.5 Skippy reports pointing is good. 22 -12.3 Focus loop converged (seeingRun reports image size good from start. 45 -8.9 Clouds gone (07:22Z), start ramp up. 58 -6.9 Start science. 82 -3.3 Clouds in north below 15deg alt, nothing overhead: continue. 244 +21.0 End science 258 +23.0 End ramp down 259 +23.2 endDrift =================================================================== Run 4600, Main survey strip 24S, +52.0 <= lambda <= +66.0 (incl. ramp up/down) Frame Lambda Comments ----- ------ ------------------------------------------ 10 +50.2 seeingRun reports image size good from start. 12 +50.6 Skippy reports pointing is good. 22 +52.0 Start ramp up 35 +54.0 Start science 79 +60.6 seeingRun reports image size bad. 101 +64.0 End science (and end of strip) 113 +65.7 Seeing has clearly improved, but seeingRun flagged frames 79 to 119 as bad. Since this is so close to the end of the strip, we need an informed judgement from Steve Kent as to whether this data is useful or needs to be reobserved. 115 +66.0 End ramp down =================================================================== Run 4601 - Ignore. =================================================================== Run 4602, on-telescope bias, T-bars unlatched, during morning twilight (Sun more than 12 deg below horizon), flat-field screens closed. =================================================================== Run 4603, calibration, drift-mode on-sky flat-field into twilight. By frame 50, the g chips were already above 38000 counts although z was only at 2900. By frame 67, z was up to 28000. We stopped at frame 70. =================================================================== Run 4604, ignore: on-telescope bias to check saturation recovery after run 4603 (it was ok). =================================================================== ---=== SKIPPY RESULTS ===--- Run Frame nFrames stars muErr muRms nuErr nuRms rot az el --------------------------------------------------------------------------- 4599 14 4 39 -7.400 0.129 2.100 0.121 -0.00298 281 52 4599 66 4 58 -8.000 0.167 1.900 0.132 -0.00290 281 53 4599 119 4 54 -7.400 0.598 1.100 0.452 -0.00196 281 55 4599 172 4 73 -7.900 0.139 0.400 0.133 -0.00264 280 56 4599 226 4 48 -7.100 0.809 -0.500 0.748 -0.00285 277 57 4600 12 4 68 -5.200 0.838 -6.000 0.732 0.00984 226 74 4600 17 4 53 -5.800 0.298 -6.100 0.570 0.00957 225 74 4600 67 4 65 -4.300 0.363 -5.600 0.539 0.00614 220 71 4600 119 4 73 -4.500 0.132 -6.100 0.136 0.00163 216 67 ---=== LTMATCH RESULTS ===--- Run Field nFields alt az nGood rowMean rowSig colMean colSig rot ------------------------------------------------------------------------ 4599 25 1 53 259 9 -0.189 0.088 0.553 0.252 -0.00186 4599 25 1 53 259 15 -0.392 0.126 0.736 0.246 -0.00247 4599 25 1 53 259 12 -0.307 0.128 0.613 0.271 -0.00206 4599 25 1 53 259 14 -0.444 0.130 0.589 0.244 -0.00198 4599 25 1 53 259 5 -0.741 0.175 0.692 0.290 -0.00233 4599 43 1 53 259 11 0.117 0.177 0.641 0.273 -0.00216 4599 43 1 53 259 8 0.009 0.142 0.561 0.152 -0.00189 4599 43 1 53 259 14 0.039 0.221 0.648 0.181 -0.00218 4599 43 1 53 259 10 0.007 0.189 0.577 0.214 -0.00194 4599 43 1 53 259 14 -0.092 0.197 0.506 0.194 -0.00170 4599 77 1 54 258 10 0.334 0.162 0.324 0.190 -0.00109 4599 77 1 54 258 11 0.219 0.188 0.263 0.244 -0.00089 4599 77 1 54 258 6 0.212 0.097 0.229 0.356 -0.00077 4599 77 1 54 258 6 0.116 0.115 0.208 0.212 -0.00070 4599 77 1 54 258 11 0.016 0.257 0.921 2.450 -0.00310 4599 96 1 54 258 12 0.852 0.165 -0.084 0.169 0.00028 4599 96 1 54 258 8 0.774 0.243 -0.028 0.264 0.00010 4599 96 1 54 258 10 0.575 0.232 0.107 0.137 -0.00036 4599 96 1 54 258 9 0.451 0.224 -0.045 0.123 0.00015 4599 96 1 54 258 8 0.236 0.300 0.009 0.253 -0.00003 4599 129 1 55 259 15 0.145 0.188 -0.890 0.335 0.00299 4599 129 1 55 259 11 -0.151 0.207 -0.567 0.165 0.00191 4599 129 1 55 259 12 -0.193 0.194 -0.518 0.182 0.00174 4599 129 1 55 259 6 -0.283 0.168 -0.712 0.248 0.00239 4599 129 1 55 259 10 -0.228 0.215 -0.732 0.302 0.00246 4599 148 1 55 259 12 0.335 0.231 0.050 0.223 -0.00017 4599 148 1 55 259 7 0.095 0.111 -0.016 0.126 0.00005 4599 148 1 55 259 9 0.194 0.069 0.070 0.200 -0.00024 4599 148 1 55 259 11 0.024 0.115 0.123 0.226 -0.00041 4599 148 1 55 259 12 -0.073 0.073 0.186 0.189 -0.00062 4599 182 1 56 261 22 0.566 0.230 -0.085 0.277 0.00029 4599 182 1 56 261 11 0.563 0.343 0.072 0.280 -0.00024 4599 182 1 56 261 15 0.557 0.190 0.059 0.328 -0.00020 4599 182 1 56 261 6 0.290 0.094 0.211 0.315 -0.00071 4599 182 1 56 261 19 0.165 0.201 0.140 0.264 -0.00047 4599 200 1 56 261 16 0.077 0.227 -0.121 0.223 0.00041 4599 200 1 56 261 8 -0.035 0.166 -0.135 0.297 0.00046 4599 200 1 56 261 12 -0.048 0.173 -0.171 0.262 0.00057 4599 200 1 56 261 7 -0.180 0.171 -0.179 0.280 0.00060 4599 200 1 56 261 12 -0.393 0.188 -0.271 0.137 0.00091 4599 236 1 57 263 9 0.351 0.169 -0.117 0.164 0.00039 4599 236 1 57 263 17 0.138 0.141 -0.106 0.168 0.00036 4599 236 1 57 263 16 0.041 0.186 -0.025 0.140 0.00009 4599 236 1 57 263 13 -0.021 0.114 -0.075 0.161 0.00025 4599 236 1 57 263 13 -0.187 0.216 0.086 0.126 -0.00029 4599 248 1 57 264 9 0.032 0.097 -0.183 0.097 0.00061 4599 248 1 57 264 23 -0.138 0.114 -0.198 0.164 0.00067 4599 248 1 57 264 17 -0.215 0.110 -0.159 0.134 0.00053 4599 248 1 57 264 10 -0.466 0.096 -0.051 0.133 0.00017 4599 248 1 57 264 13 -0.543 0.201 -0.194 0.129 0.00065 ---=== 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 26369, plate -9999 ------- 22:19 26369 0.0 bias ----- sequence 26370, plate 1447 ------- 22:32 26370 10.0 flat Ignore: focus checks 22:34 26371 2.0 arc " 22:39 26372 2.1 arc " 22:41 26373 2.1 arc " 22:52 26374 2.1 arc " 22:54 26375 2.1 arc " 23:10 26376 2.1 arc " 23:13 26377 2.1 arc " ----- sequence 26378, plate -9999 ------- 00:16 26378 0.0 bias ----- sequence 26379, plate 1447 ------- 17.6 15.1 16.2 15.3 DONE 02:55 26379 10.0 flat 02:57 26380 2.0 arc 03:16 26381 900.1 target 03:31 26382 720.1 target 03:43 26383 600.1 target ----- sequence 26384, plate 1448 ------- 18.8 15.8 17.2 14.2 DONE 03:54 26384 10.0 flat 03:57 26385 2.0 arc 04:10 26386 600.1 target 04:28 26387 900.1 target 04:43 26388 720.1 target ----- sequence 26389, plate 1450 ------- 14.6 15.4 19.8 17.9 DONE 04:53 26389 10.0 flat 04:55 26390 2.0 arc 05:11 26391 720.1 target 05:26 26392 720.1 target 05:41 26393 720.1 target ----- sequence 26394, plate 1614 ------- 17.3 16.5 15.8 15.6 DONE 05:55 26394 10.0 flat 05:57 26395 2.0 arc 06:12 26396 720.1 target 06:28 26397 720.1 target 06:42 26398 700.1 target ---=== TELESCOPE OFFSETS AND SCALE I ===--- Time Instrument Az Alt Rot Scale pos offset pos offset pos offset ------------------------------------------------------------------------------ 03:01Z 3 1447 122.55 -0.0003 67.57 0.0032 -73.39 -0.0020 1.000230 04:14Z 4 1448 143.78 0.0023 77.60 0.0039 -42.32 0.0007 1.000280 05:09Z 1 1450 185.93 0.0001 80.23 0.0033 6.70 0.0082 1.000280 06:06Z 5 1614 -34.29 -0.0008 66.25 0.0007 150.89 -0.0213 1.000140 10:31Z imager -36.87 0.0000 68.36 0.0000 90.36 0.0000 1.000000 ---=== TELESCOPE OFFSETS AND SCALE II ===--- ---=== DATA TAPE SUMMARY ===--- Goes: JL7452/3/4/5/6/8 + JL7471 Stays: JL7459/60/1/2/3/4 + JL7472 ---=== FOCUS LOG ===--- setmir piston Temp Wind Time Inst scale M1 M2 Foc Az Alt (C) MPH Dir filt fwhm ------------------------------------------------------------------------------ 03:01Z 3 1447 1.00023 -2270 -604 140 123 67.6 5.4 3 267 BG38 1.5 04:14Z 4 1448 1.00028 -2764 -1068 100 144 77.6 5.5 6 234 BG38 1.3 05:09Z 1 1450 1.00028 -2764 -1071 100 186 80.2 5.4 7 199 BG38 1.4 06:06Z 5 1614 1.00014 -1383 84 90 -34 66.3 5.3 10 194 BG38 1.5 10:31Z imager 1.00000 0 -261 -130 -37 68.3 4.7 11 202 -- 1.8 ---=== WEATHER LOG ===--- Wind Time Temp F Dewp F MPH Direction Dust DIMM Sky 22:11Z 44 17 10 324 (NW) 623 - Photometric 22:43Z 46 20 11 311 (NW) 593 - " 23:16Z 46 18 16 310 (NW) 585 - " 23:48Z 45 19 9 341 (NNW) 621 - " 00:19Z 44 19 5 328 (NNW) 622 - " 00:51Z 44 19 7 295 (WNW) 590 - " 01:23Z 42 18 6 347 (NNW) 617 - " 01:55Z 41 19 5 327 (NNW) 686 - " 02:28Z 41 19 2 300 (WNW) 664 - " 02:58Z 41 19 4 268 (W) 738 - " 03:30Z 41 19 4 236 (SW) 675 - " 04:01Z 41 20 7 210 (SSW) 748 - " 04:34Z 41 19 7 231 (SW) 802 - " 05:06Z 41 18 6 216 (SW) 850 - " 05:38Z 41 18 7 186 (S) 812 - " 06:10Z 41 18 8 188 (S) 749 - " 06:44Z 42 16 12 206 (SSW) 715 - " 07:16Z 43 15 10 215 (SW) 752 - Patchy cloud 07:46Z 42 15 11 236 (SW) 849 - Photometric 08:16Z 42 16 12 231 (SW) 860 - " 08:49Z 41 14 10 233 (SW) 948 - " 09:19Z 41 15 9 231 (SW) 1002 - " 09:49Z 41 17 6 191 (S) 1054 - " 10:19Z 40 18 8 191 (S) 1229 - " 10:49Z 40 18 8 191 (S) 1256 - " 11:19Z 40 18 1 200 (SSW) 1482 - " 11:51Z 38 17 6 225 (SW) 1100 - " 12:23Z 41 16 4 264 (W) 1042 - " ---=== TELESCOPE STATUS ===--- 00:10Z Cone fans on to try to smooth mirror temperatures. Succeeded in smoothing them, but also raised them. Ho, hum. 01:25Z Doors open, extractor fans on. 01:35Z Enclosure off. 12:10Z Enclosure on, fans off. No interlocks bypassed. Status at 12:02Z: Telescope stowed at: 30 deg altitude Instrument mounted: Imager, T-bars unlatched (telescope mode) Counterweights at: 720 Autofill systems: On 180L LN2 dewar scales: Spectro 304 lb, 24 psi Imager 309 lb, 20 psi We made a deliberate decision to leave the imager mounted, as it is the first instrument we need for shake-up, there is no engineering due, and there is no threat of lightning during the day. We issued a "cc startfillseq" after returning to stow altitude following the dip to 5 deg altitude during closure. ---=== SOFTWARE USED ===--- IOP/SOP: v3_135_0 Watcher: v2_29_0 MCP: v5_25_0 TPM: tpm_v2_41_0 AstroDa: v14_47 TCC: TCC 2.7.2 November 11 2003 sdssProcedures: v1_89 SoS: v4_10_7 hoggPT: v1_6_9 plate-mapper: v4_3_1 ---=== MIRROR NUMBERS ===--- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A 0.5390 0.5420 Axial B 0.6430 0.6480 Axial C 1.0920 1.0940 Trans D -8.4440 -8.4380 Lateral E 10.8712 10.8966 Lateral F 10.8458 10.8585 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.: 6.8 Alt.: 29.931416 MIGS TONIGHT NOMINAL Axial A 1.5130 1.5120 Axial B 1.1050 1.1050 Axial C 1.1140 1.1140 Trans D 0.0050 0.0040 GALILS Commanded: 1628606. 1548096. 1574402. -3900. -8750. Actual: 1628641. 1548187. 1574504. -3899. -8726. SETMIR VALUES SecDesOrient: 1257.00 0.00 -25.00 0.00 146.27 SecOrient: 1256.94 0.01 -25.02 0.25 146.55 ---=== PROBLEMS IN DETAIL ===--- ---=== SPECTROGRAPH FOCUS ===--- Initial positions: sp1: Coll_motor_A 979 Coll_motor_B 10378 Coll_motor_C 5677 b1 ring 271 deg sp2: Coll_motor_A 3 Coll_motor_B -3 Coll_motor_C 0 b2 ring 282 deg 22:46Z Tpmss ~ 5.0C IDL> collimate, 26372 COLLIMATE: Mean offset = -0.36 pix COLLIMATE: Camera b1 appears to be OUT-OF-FOCUS (|mean| > 0.15 pix) COLLIMATE: Predict blue camera ring movement of 12.8 degrees for spectro-1 COLLIMATE: Mean offset = -0.03 pix COLLIMATE: Camera b2 appears to be IN-FOCUS (|mean| < 0.15 pix) COLLIMATE: Predict blue camera ring movement of 0.9 degrees for spectro-2 COLLIMATE: Mean offset = 0.06 pix COLLIMATE: Camera r1 appears to be IN-FOCUS (|mean| < 0.15 pix) COLLIMATE: Predict (red) piston movement of -531 steps for spectro-1 COLLIMATE: Issue SOP command: "sp1; mechPiston -531" COLLIMATE: Mean offset = -0.02 pix COLLIMATE: Camera r2 appears to be IN-FOCUS (|mean| < 0.15 pix) COLLIMATE: Predict (red) piston movement of 139 steps for spectro-2 COLLIMATE: Issue SOP command: "sp2; mechPiston 139" Try fixing red before messing with blue... sp1; mechPiston -531 sp2; mechPiston 139 Still get: IDL> collimate, 26374 COLLIMATE: Mean offset = -0.30 pix COLLIMATE: Camera b1 appears to be OUT-OF-FOCUS (|mean| > 0.15 pix) COLLIMATE: Predict blue camera ring movement of 10.7 degrees for spectro-1 COLLIMATE: Mean offset = -0.03 pix COLLIMATE: Camera b2 appears to be IN-FOCUS (|mean| < 0.15 pix) COLLIMATE: Predict blue camera ring movement of 0.9 degrees for spectro-2 COLLIMATE: Mean offset = 0.01 pix COLLIMATE: Camera r1 appears to be IN-FOCUS (|mean| < 0.15 pix) COLLIMATE: Predict (red) piston movement of -68 steps for spectro-1 COLLIMATE: Mean offset = -0.01 pix COLLIMATE: Camera r2 appears to be IN-FOCUS (|mean| < 0.15 pix) COLLIMATE: Predict (red) piston movement of 80 steps for spectro-2 Move b1 +11 deg IDL> collimate, 26376 COLLIMATE: Mean offset = -0.01 pix COLLIMATE: Camera b1 appears to be IN-FOCUS (|mean| < 0.15 pix) COLLIMATE: Predict blue camera ring movement of 0.3 degrees for spectro-1 COLLIMATE: Mean offset = -0.01 pix COLLIMATE: Camera b2 appears to be IN-FOCUS (|mean| < 0.15 pix) COLLIMATE: Predict blue camera ring movement of 0.2 degrees for spectro-2 COLLIMATE: Mean offset = -0.02 pix COLLIMATE: Camera r1 appears to be IN-FOCUS (|mean| < 0.15 pix) COLLIMATE: Predict (red) piston movement of 175 steps for spectro-1 COLLIMATE: Mean offset = -0.03 pix COLLIMATE: Camera r2 appears to be IN-FOCUS (|mean| < 0.15 pix) COLLIMATE: Predict (red) piston movement of 302 steps for spectro-2 Final positions: sp1: Coll_motor_A 447 Coll_motor_B 9846 Coll_motor_C 5147 b1 ring 282 deg sp2: Coll_motor_A 130 Coll_motor_B 149 Coll_motor_C 139 b2 ring 0 deg