APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Saturday October 18, 2003 (MJD 52931) ---=== OBSERVING TEAM ===--- Mike Harvanek Pete Newman Steph Snedden (swing) ---=== OBSERVING PLAN ===--- Science! ---=== OBSERVING SUMMARY ===--- Imaging: 82 S from lambda 126 to -165. Spectro: Finished 2 plates (1514, 1259) and good data for another one (1492). We did not see any fiducial errors too large to correct so it looks like cleaning the read head solved the problem. Thanks. We got an altitude servo oscillation on closing tonight. See the Problems section for details. ---=== OBSERVING LOG ===--- Afternoon: ---------- There appears to be a bug in the new idlspec2d (v4_10_6). See the Problems section for details. The XMIN on sp1 was tweaked 2 pixels in the positive direction. Night: ------ We started with imaging of 82 S. Ramp started at frame 12, lambda 123. Science started at frame 32, lambda 126. Science ended at frame 494, lambda -165. Ramp ended at frame 513, lambda -162. The moon rose around 0645Z and we switched to spectroscopy. Plate 1492 (cartridge 7): After clearing previous offsets, an FK5 star was found on the gotoField. We obtained one 900 s exposure before this plate expired. Plate 1514 (cartridge 4): Guide stars on the gotoField. Although this plate was done in 3 exposures, there were no other plates available at this time. So, 2 additional exposures were obtained while waiting for another plate to become available. Five total exposures (4491 s) gave more than double the required s/n. Note that the 2nd exposure is 891 s. This is because an endStare was mistakenly issued. Plate 1259 (cartridge 1): Guide stars on the gotoField. A large scale change lost the stars and an fk5 was needed to acquire the field again. The guide stars on this plate appeared to be several magnitudes fainter (on the guider) than typical guide stars. SoS refused to reduce most of the data from b1 because there were not enough sky fibers (see the Problems section for details). We had this same problem with r1 on another Taurus plate (1250) on MJD 52929. Although this plate (1259) was done in 3 exposures, the only other plate available at this time was awash in moonlight and twilight was approaching. Thus, we would not have been able to obtain useful data for it and so we took a 4th exposure on this plate. The four exposures totaled 3600 s. SoS did reduce b1 on the 4th exposure and we were able to call this plate done. A smear was taken for this plate because there was some concern that special plates may require one even though survey plates do not. No fiducial errors too large to correct were seen tonight so it appears that the cleaning of the read head solved the problem. The manipulator arm would not slide along its rail when closing. The arm was up against its east end. Manually pushing it several inches to the west away from the end solved the problem. PR 5714 was filed. We had an altitude servo oscillation on closing. See the Problems section for details. endNight is still running. ---=== IMAGING RUN SUMMARY ===--- Run Time Stripe Lambda Last Flavor Comments Start End Begin End Frame ------------------------------------------------------------------------- 4190 01:04Z 01:26Z 100 O 112.36 117.81 50 bias 4191 01:27Z 01:46Z 82 S 130.91 135.69 46 ignore 4192 01:48Z 06:51Z 82 S 122.34 -161.68 521 science ---=== IMAGING RUN DETAILS ===--- See the main log. ---=== SKIPPY RESULTS ===--- Run Frame nFrames stars muErr muRms nuErr nuRms rot az el --------------------------------------------------------------------------- 4191 19 4 125 -5.000 0.196 -3.000 0.533 -0.00031 157 55 4191 24 4 79 -4.800 0.284 -3.300 0.405 -0.00201 157 55 4192 9 4 92 -5.500 0.202 -3.500 0.577 -0.00124 182 57 4192 23 4 133 -6.000 0.236 -3.600 0.459 -0.00166 182 57 4192 76 4 125 -3.400 0.179 -4.100 0.141 -0.00076 182 57 4192 129 4 80 -4.500 0.120 -4.900 0.109 -0.00087 182 57 4192 183 4 57 -4.500 0.147 -5.500 0.147 -0.00135 182 57 4192 234 4 39 -4.400 0.121 -4.900 0.092 -0.00107 182 57 4192 287 4 46 -5.400 0.584 -5.400 0.148 -0.00107 182 57 4192 339 4 43 -5.400 0.150 -4.900 0.109 -0.00110 182 57 4192 392 4 50 -5.300 0.144 -4.700 0.112 -0.00120 182 57 4192 445 4 47 -5.300 0.749 -4.400 0.293 -0.00110 182 57 4192 496 4 47 -5.600 0.122 -4.400 0.128 -0.00129 182 57 ---=== LTMATCH RESULTS ===--- Run Field nFields alt az nGood rowMean rowSig colMean colSig rot ------------------------------------------------------------------------ 4192 20 1 57 358 86 -0.585 0.182 -0.010 0.130 0.00003 4192 20 1 57 358 69 -0.198 0.119 0.092 0.157 -0.00031 4192 20 1 57 358 75 0.102 0.212 0.020 0.199 -0.00007 4192 20 1 57 358 79 0.339 0.203 0.032 0.157 -0.00011 4192 20 1 57 358 62 0.534 0.202 0.066 0.119 -0.00022 4192 33 1 57 358 74 0.223 0.158 0.194 0.160 -0.00065 4192 33 1 57 358 76 0.365 0.132 0.332 0.140 -0.00112 4192 33 1 57 358 81 0.545 0.191 0.450 0.220 -0.00151 4192 33 1 57 358 80 0.873 0.169 0.445 0.227 -0.00149 4192 33 1 57 358 64 1.113 0.146 0.328 0.161 -0.00110 4192 51 1 57 358 67 0.117 0.215 0.596 0.163 -0.00200 4192 51 1 57 358 75 0.257 0.248 0.512 0.218 -0.00172 4192 51 1 57 358 74 0.587 0.340 0.619 0.138 -0.00208 4192 51 1 57 358 77 0.887 0.254 0.825 0.206 -0.00277 4192 51 1 57 358 51 1.248 0.240 0.455 0.207 -0.00153 4192 86 1 57 358 50 -0.223 0.290 0.225 0.199 -0.00076 4192 86 1 57 358 55 0.093 0.277 0.115 0.208 -0.00039 4192 86 1 57 358 60 0.484 0.264 0.486 0.221 -0.00163 4192 86 1 57 358 57 0.648 0.231 0.218 0.194 -0.00073 4192 86 1 57 358 48 0.849 0.215 0.286 0.230 -0.00096 4192 105 1 57 358 40 0.358 0.197 -0.141 0.117 0.00047 4192 105 1 57 358 44 0.784 0.229 -0.253 0.152 0.00085 4192 105 1 57 358 61 0.954 0.322 -0.174 0.232 0.00058 4192 105 1 57 358 55 1.253 0.260 -0.157 0.153 0.00053 4192 105 1 57 358 45 1.432 0.275 -0.172 0.167 0.00058 4192 140 1 57 358 35 0.355 0.116 0.081 0.127 -0.00027 4192 140 1 57 358 31 0.723 0.095 0.080 0.135 -0.00027 4192 140 1 57 358 49 1.044 0.137 0.230 0.169 -0.00077 4192 140 1 57 358 39 1.073 0.136 0.213 0.123 -0.00072 4192 140 1 57 358 24 1.304 0.161 0.066 0.153 -0.00022 4192 157 1 57 358 39 0.502 0.116 0.240 0.141 -0.00081 4192 157 1 57 358 38 0.817 0.105 0.278 0.108 -0.00093 4192 157 1 57 358 31 1.104 0.149 0.315 0.175 -0.00106 4192 157 1 57 358 35 1.247 0.162 0.365 0.117 -0.00123 4192 157 1 57 358 36 1.358 0.135 0.433 0.169 -0.00146 4192 192 1 57 358 22 0.530 0.128 0.458 0.168 -0.00154 4192 192 1 57 358 29 0.674 0.229 0.318 0.187 -0.00107 4192 192 1 57 358 26 0.961 0.316 0.366 0.311 -0.00123 4192 192 1 57 358 25 1.013 0.241 0.620 0.264 -0.00209 4192 192 1 57 358 27 1.210 0.246 1.253 0.257 -0.00421 4192 210 1 57 358 20 0.080 0.182 0.586 0.256 -0.00197 4192 210 1 57 358 28 0.252 0.143 0.641 0.380 -0.00215 4192 210 1 57 358 15 0.701 0.207 0.813 0.186 -0.00273 4192 210 1 57 358 28 1.192 0.258 1.058 0.253 -0.00356 4192 210 1 57 358 22 0.933 0.191 0.986 0.177 -0.00331 4192 246 1 57 358 21 0.323 0.163 0.130 0.134 -0.00044 4192 246 1 57 358 13 0.782 0.224 0.009 0.116 -0.00003 4192 246 1 57 358 28 1.075 0.151 0.058 0.166 -0.00019 4192 246 1 57 358 12 1.171 0.166 0.068 0.134 -0.00023 4192 246 1 57 358 26 1.469 0.159 0.073 0.144 -0.00025 4192 262 1 57 358 25 0.698 0.113 -0.085 0.167 0.00028 4192 262 1 57 358 19 0.932 0.067 -0.055 0.161 0.00018 4192 262 1 57 358 21 1.224 0.134 -0.151 0.202 0.00051 4192 262 1 57 358 20 1.388 0.152 -0.241 0.131 0.00081 4192 262 1 57 358 14 1.644 0.095 -0.189 0.191 0.00063 4192 298 1 57 358 25 0.245 0.154 0.676 0.275 -0.00227 4192 298 1 57 358 24 0.429 0.150 0.852 0.222 -0.00287 4192 298 1 57 358 22 0.782 0.091 0.968 0.150 -0.00326 4192 298 1 57 358 13 0.871 0.098 1.174 0.232 -0.00395 4192 298 1 57 358 21 1.077 0.144 1.027 0.294 -0.00345 4192 315 1 57 358 14 0.426 0.125 0.730 0.160 -0.00245 4192 315 1 57 358 18 0.693 0.124 0.620 0.139 -0.00209 4192 315 1 57 358 13 1.061 0.119 0.577 0.186 -0.00194 4192 315 1 57 358 23 1.234 0.113 0.653 0.190 -0.00220 4192 315 1 57 358 12 1.519 0.113 0.783 0.197 -0.00263 4192 350 1 57 358 13 -0.029 0.192 0.582 0.186 -0.00196 4192 350 1 57 358 15 0.325 0.183 0.540 0.210 -0.00181 4192 350 1 57 358 14 0.600 0.256 0.648 0.340 -0.00218 4192 350 1 57 358 15 0.724 0.194 0.435 0.364 -0.00146 4192 350 1 57 358 12 1.072 0.109 0.502 0.130 -0.00169 4192 368 1 57 358 9 0.225 0.238 0.718 0.116 -0.00242 4192 368 1 57 358 19 0.464 0.264 0.614 0.228 -0.00206 4192 368 1 57 358 16 0.837 0.204 0.800 0.200 -0.00269 4192 368 1 57 358 18 0.925 0.201 0.543 0.296 -0.00183 4192 368 1 57 358 15 1.176 0.186 0.871 0.224 -0.00293 4192 402 1 57 358 18 0.144 0.116 0.629 0.167 -0.00212 4192 402 1 57 358 20 0.400 0.152 0.671 0.177 -0.00226 4192 402 1 57 358 19 0.719 0.126 0.514 0.173 -0.00173 4192 402 1 57 358 11 0.882 0.158 0.809 0.181 -0.00272 4192 402 1 57 358 7 1.137 0.118 0.571 0.244 -0.00192 4192 420 1 57 358 12 -0.141 0.281 0.700 0.179 -0.00235 4192 420 1 57 358 13 0.122 0.299 0.831 0.218 -0.00279 4192 420 1 57 358 18 0.547 0.248 0.761 0.106 -0.00256 4192 420 1 57 358 22 0.819 0.235 0.816 0.166 -0.00274 4192 420 1 57 358 14 1.150 0.261 0.637 0.184 -0.00214 4192 455 1 57 358 10 -0.008 0.141 0.650 0.323 -0.00218 4192 455 1 57 358 12 0.412 0.166 0.681 0.272 -0.00229 4192 455 1 57 358 9 0.727 0.141 0.521 0.236 -0.00175 4192 455 1 57 358 19 0.913 0.179 0.529 0.228 -0.00178 4192 455 1 57 358 12 1.102 0.156 0.592 0.283 -0.00199 4192 472 1 57 358 11 0.459 0.137 0.025 0.127 -0.00009 4192 472 1 57 358 19 0.544 0.160 0.134 0.197 -0.00045 4192 472 1 57 358 14 0.911 0.107 0.226 0.165 -0.00076 4192 472 1 57 358 19 1.186 0.172 0.251 0.183 -0.00084 4192 472 1 57 358 13 1.404 0.115 0.352 0.117 -0.00118 4192 502 1 57 358 13 -0.065 0.108 0.241 0.159 -0.00081 4192 502 1 57 358 14 0.189 0.108 0.442 0.144 -0.00149 4192 502 1 57 358 17 0.627 0.115 0.335 0.171 -0.00112 4192 502 1 57 358 16 0.820 0.124 0.505 0.274 -0.00170 4192 502 1 57 358 9 1.069 0.210 0.192 0.218 -0.00064 ---=== 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 22:52 22691 10.0 flat test 22:55 22692 10.0 flat test ----- sequence 22693, plate 1522 ------- 23:04 22693 10.0 flat test ----- sequence 22694, plate -9999 ------- 23:18 22694 0.0 bias ----- sequence 22695, plate 1522 ------- 23:22 22695 10.0 flat test 23:28 22696 2.1 arc test 23:31 22697 2.1 arc test 23:47 22698 2.1 arc test 23:50 22699 2.1 arc test ----- sequence 22700, plate -9999 ------- 00:10 22700 0.0 bias ----- sequence 22701, plate 1492 ------- 6.4 7.4 7.4 6.7 07:26 22701 10.0 flat 07:29 22702 2.0 arc 07:48 22703 900.1 target ----- sequence 22704, plate 1514 ------- 37.5 33.6 43.5 31.6 WAY DONE 08:03 22704 10.0 flat 08:06 22705 2.0 arc 08:24 22706 900.1 target 08:41 22707 891.1 target exposure time of 891 s is correct 08:59 22708 900.1 target 09:17 22709 900.1 target 09:35 22710 900.1 target 09:38 22711 10.0 flat 09:40 22712 2.0 arc ----- sequence 22713, plate 1259 ------- 15.1 44.5 35.0 51.8 WAY DONE 10:10 22713 10.0 flat ^ 10:13 22714 2.0 arc ^ 10:32 22715 900.1 target This value is way underestimated. 10:50 22716 900.1 target See log. 11:08 22717 900.1 target 11:29 22718 900.1 target 11:37 22719 240.0 smear 11:41 22720 10.0 flat 11:43 22721 2.0 arc ---=== TELESCOPE OFFSETS AND SCALE I ===--- Time Instrument Az Alt Rot Scale pos offset pos offset pos offset ------------------------------------------------------------------------------ 02:07Z imager -1.99 0.0000 57.08 0.0000 88.13 0.0000 1.000000 07:34Z 7 1492 -46.72 0.0033 46.78 0.0014 142.17 -0.0208 1.000100 08:09Z 4 1514 7.27 0.0039 56.99 -0.0001 186.04 -0.0074 0.999940 10:16Z 1 1259 32.94 0.0057 52.91 0.0016 207.16 0.0035 1.000470 ---=== TELESCOPE OFFSETS AND SCALE II ===--- ---=== DATA TAPE SUMMARY ===--- Goes: JL6840-6846 Stays: JL6847-6853 ---=== FOCUS LOG ===--- setmir piston Temp Wind Time Inst scale M1 M2 Foc Az Alt (C) MPH Dir filt fwhm ------------------------------------------------------------------------------ 02:08Z imager 1.00000 0 -396 -291 -2 57.1 13.0 4 355 i'-23 1.0 05:07Z imager 1.00000 0 -427 -322 -2 57.1 13.8 9 82 i'-23 1.1 07:33Z 7 1492 1.00010 -988 333 -40 -46 46.9 13.7 10 80 ----- 1.6 08:09Z 4 1514 0.99994 593 1611 -40 7 57.0 13.3 9 76 ----- 1.6 10:15Z 1 1259 1.00047 -4640 -2709 -40 33 52.8 13.1 9 75 ----- 1.4 ---=== WEATHER LOG ===--- Wind Time Temp F Dewp F MPH Direction Dust DIMM Sky 22:46Z 61 30 8 248 (WSW) 500 - clear 23:17Z 58 27 8 258 (WSW) 546 - " 23:48Z 59 29 2 250 (WSW) 588 - " 00:20Z 57 28 1 239 (WSW) 533 - " 00:51Z 55 28 0 207 (SSW) 635 - " 01:24Z 56 28 0 223 (SW) 601 - " 01:56Z 54 25 4 8 (N) 532 - " 02:29Z 55 23 4 3 (N) 384 - " 03:01Z 57 11 2 357 (NNW) 180 - " 03:33Z 56 11 5 12 (NNE) 209 - " 04:05Z 56 24 5 26 (NNE) 486 - " 04:38Z 57 24 6 79 (E) 456 - " 05:10Z 56 22 9 80 (E) 360 - " 05:42Z 56 21 11 85 (E) 409 - " 06:14Z 56 21 11 80 (E) 396 - " 06:47Z 56 20 10 82 (E) 351 - " 07:17Z 56 20 10 79 (E) 329 - " 07:47Z 56 20 9 83 (E) 328 - " 08:18Z 55 20 7 85 (E) 326 - " 08:48Z 55 19 9 82 (E) 313 - " 09:18Z 55 20 9 72 (ENE) 329 - " 09:49Z 55 20 9 67 (ENE) 310 - " 10:19Z 55 18 9 73 (ENE) 270 - " 10:49Z 55 20 9 75 (ENE) 347 - " 11:21Z 54 20 8 82 (E) 367 - " 11:51Z 54 20 9 82 (E) 380 - " 12:21Z 54 18 9 81 (E) 311 - " ---=== TELESCOPE STATUS ===--- 00:05Z Enclosure doors opened, fans and blowers on, louvers opened. 00:35Z Enclosure off. 12:05Z Enclosure on, doors closed, fans and blowers off, louvers closed. Telescope stowed at 30 degrees with cartridge 2 (plate 1522) mounted. Counterweights at 280. Spectro auto-fill connected. Imager dewar 12:32 278 lb Spectro dewar 12:32 157 lb No interlocks bypassed. ---=== SOFTWARE USED ===--- IOP/SOP: v3_120_0 Watcher: v2_24_0 MCP: v5_22_0 TPM: tpm_v2_33_0 AstroDa: v14_47 TCC: 2.7.1 sdssProcedures: v1_77 tccMon: v2_2 SoS: v4_10_6 hoggPT: v1_6_9 plate-mapper: v4_3_1 ---=== MIRROR NUMBERS ===--- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A 0.5440 0.5460 Axial B 0.6440 0.6290 Axial C 1.0890 1.0900 Trans D -8.6050 -8.5750 Lateral E 10.8839 10.9093 Lateral F 10.8458 10.8712 GALILS Commanded: 4600. -2850. 850. -7250. 19000. 18450. Actual: 4600. -2866. 866. -7275. 19011. 18425. 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.: 16.6 Alt.: 30.179154 MIGS TONIGHT NOMINAL Axial A 1.5140 1.5100 Axial B 1.1050 1.0990 Axial C 1.1130 1.1160 Trans D -0.8330 -0.8210 GALILS Commanded: 1628682. 1548140. 1574471. -3900. -8750. Actual: 1628641. 1548187. 1574504. -3899. -8726. SETMIR VALUES SecDesOrient: 1257.00 0.00 -25.00 0.00 146.27 SecOrient: 1256.99 0.01 -25.03 0.25 146.56 ---=== PROBLEMS IN DETAIL ===--- Bug in the new idlspec2d (v4_10_6): ----------------------------------- IDL> collimate, 22696 ans[ibestx-1:ibestx+1,ibesty], 3, /double) ^ % Syntax error. At: /local/ups/prd/Linux/idlspec2d/v4_10_6/pro/apo2d/collimate.pro, Line 248 transpose(ans[ibestx,ibesty-1:ibesty+1]), 3, /double) ^ % Syntax error. At: /local/ups/prd/Linux/idlspec2d/v4_10_6/pro/apo2d/collimate.pro, Line 254 % Compiled module: COLLIMATE. % Attempt to call undefined procedure/function: 'COLLIMATE'. % Execution halted at: $MAIN$ SoS not reducing some data for Taurus plates: --------------------------------------------- In file: /data/d1/spectro/spectrologs/52931/err.sdR-b1-00022715.fit we found the following error messages (abridged): SKYSUBTRACT: sdR-b1-00022715.fit: WARNING: Too few sky fibers or pixels to model sky-sub variance!! % Expression must be a structure in this context: RELCHI2STRUCT. % Execution halted at: QUICKEXTRACT 262 /local/ups/prd/Linux/idlspec2d/v4_10_6/pro/apo2d/quickextract.pro % APOREDUCE 302 /local/ups/prd/Linux/idlspec2d/v4_10_6/pro/apo2d/aporeduce.pro % $MAIN$ % Program caused arithmetic error: Floating illegal operand Altitude servo oscillation (from Pete): --------------------------------------- Sorry to bring bad news, but we had an altitude servo oscillation on closing up tonight. MJD 52931, about 12:00Z (i.e. 6am MDT). The telescope was slewed to (121, 6, 0) mount, cartridge 2 was on, CW=280, spectro secondaries in need of a fill (they autofilled on being hooked up a few minutes later). As the telescope came to a stop at 6deg, there was a clear ~4Hz oscillation with about 4mm P-P amplitude at the edge of the alt drive disk. Commanding the TCC to 'axis stop' had no effect. Telling the MCP to 'stop' the drive did (and aborted the amp). We had no observational evidence of problems during the night (no bad images, no fiducual errors too large for correction), but were not otherwise closely monitoring the encoders. The next 'axis init' and slew to (121, 30, 0) did not reproduce the problem. That's were we left it stowed. When I went downstairs to power-down the amps, there were a hell of a lot of moths on and in the amp housing, so I think they are seeking warm places now. I laid a hand on each amp backplate; all were warm, but none seemed excessively so. See also, existing PR 5460.