APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Monday January 30, 2006 (MJD 53766) ---=== OBSERVING TEAM ===--- Swing: K. Pan Night: S. Snedden, J. Barentine Support: Craig Loomis (phone) ---=== OBSERVING PLAN ===--- Science! ---=== OBSERVING SUMMARY ===--- A long, productive night of spectroscopy (while we waited out the clouds) and imaging. We finished one seguefaint plate (2417) and obtained about half the total required signal on a second (2398). In imaging we observed: SEGUE Stripe 1356 from +51 <= Mu <= +94.5 Legacy Stripe 17N from -67 <= Lambda <= -21.5 SEGUE Stripe 1600 from +169.5 <= Mu <= +201.5 under photometric conditions, although seeing was sometimes on the hairy edge of acceptability. Highlight of the evening: The Sombrero Galaxy (M104) is in imaging run 6005, dewar 6, starting in the r chip on the boundary between frames 85 and 86. We stopped counting its globular clusters somewhere in the dozens... DIMM performed like a champ all night. Look for it to be nominated for the Oscar for Best Telescope In A Supporting Role later this morning. ---=== OBSERVING LOG ===--- Afternoon: ---------- Spectrograph focus checked and no change made. The best focus temp is around 2-3 C. As usual, details in problem section. 23:20Z Fans on, louvers and east door open, west door cracked. Night: ------ During twilight we did some troubleshooting of last night's grabInst/port problem with Craig, which included taking a series of cals in bright twilight (frames 36907-36914, all declared 'bad' in IDL). Had an error too large to correct on the rotator during the test slew in twilight. Forced the fiducial in the MCP. 01:50Z Cart 8 Plate 2417 (tile 8167, seguefaint134) There is already a total low (S/N)^2 of 49.3 on this plate from last night, requiring a trivial amount of exposure time to complete. GSOGTF, almost perfectly centered in the fibers with last night's offsets still sticky. Finished this plate quite easily in one exposure of 900 s. During the cartridge change the zodiacal light was very bright in the west. Also around this time we had a problem entering the plate database information on plate-mapper. See Problems section. 02:20Z Cart 1 Plate 2398 (tile 8148, seguefaint134) No GSOGTF, but found an fk5InFiber number 10 with total offsets of A=+8, D=+10. Seeing has become just a touch variable, now more than 0.5 arcsec FWHM larger than on the previous plate, when most guide fibers gave less than one arcsec. Did 3 x 900 s exposures on this plate as we watched the sky gradually clear and the seeing settle down. 03:40Z Switched to imaging. We followed Eric's instructions from last Saturday night regarding a file to source before issuing a goDrift in IOP to prevent a recurrence of the the problem that night. Worked as advertised. 03:53Z Run 6003 (SEGUE Stripe 1356, startMu=+51) Skippy was happy from the start of this run although focusLoop took a while to catch up, finally converging at Frame 21 (Mu=+52.5). The ramp began at the same time, and science at Frame 38 (Mu=+55). Science ended at Frame 285, Mu=+92, and we ramped down to Frame 302, Mu=+94.5 07:00Z Run 6004 (Stripe 17 N, startLambda=-67) Skippy was happy and we were in focus from the start of this scan. We ramped up from Frame 19 (Lambda=-65.5) to begin science at Frame 35 (Lambda=-63). Science ended at Frame 296 (Lambda=-24) and we ramped down to Frame 312 (Lambda=-21.5). Conditions are still favorable for imaging, although seeing is varying sharply on pretty short time scales. seeingRun called the entirety of the last scan "good", so we continue on. 10:10Z Run 6005 (SEGUE Stripe 1600, startMu=+167) The goDrift command issued from Steph's IOP session inexplicably timed out. It complained that the track command hadn't finished, but all indications (e.g., tccMon) suggested it was fine. Dewar 6, Frames 85/6: The Sombrero Galaxy (M104)! The ramp started at Frame 19 (Mu=+169.5) and science at Frame 36 (Mu=+172) Seeing was again on a steep rollercoaster but the excursions it took above 1.5 arcsec were each sufficiently brief and spiky (temporally speaking) that seeingRun called all but the first forty frames of the run good. Science ended at Frame 217 (Mu=+199), and we ramped down to Frame 234 (Mu=+201.5). (Watcher errors from the setup on this scan are in the Problems section.) 12:20Z Run 6006 (On-telescope bias in very early twilight, FF petals closed) We put the baby to bed at 12:55Z. endNight danced a jig, particularly because it was run flawlessly from Steph's account on host2. ---=== IMAGING RUN SUMMARY ===--- Run Time Stripe Lambda Last Flavor Comments Start End Begin End Frame ------------------------------------------------------------------------- 6002 22:30Z 22:58Z 100 O -183.35 -176.29 61 ignore 6003 03:56Z 06:54Z 1356 S -134.61 -90.16 310 science 6004 06:59Z 10:02Z 17 N -67.20 -21.12 321 science 6005 10:10Z 12:27Z 1600 S -17.34 16.92 242 science 6006 12:29Z 12:45Z 100 O 27.06 31.15 41 bias ---=== IMAGING RUN DETAILS ===--- ---=== SKIPPY RESULTS ===--- Run Frame nFrames stars muErr muRms nuErr nuRms rot az el --------------------------------------------------------------------------- 6003 35 4 51 -9.100 0.189 0.800 0.130 -0.00693 238 47 6003 87 4 61 -9.000 0.151 2.100 0.134 -0.00748 246 49 6003 137 4 22 -8.600 0.167 2.900 0.166 -0.00861 254 51 6003 189 4 62 -9.600 0.203 4.900 0.147 -0.00941 262 52 6003 241 4 25 -7.200 0.811 4.300 0.465 -0.00271 270 53 6004 74 4 100 -5.900 0.123 -5.700 0.119 0.00116 209 64 6004 126 4 104 -5.400 0.172 -5.200 0.163 0.00227 211 65 6004 176 4 69 -5.400 0.117 -5.200 0.145 0.00268 213 67 6004 228 4 57 -4.900 0.113 -5.000 0.125 0.00765 215 68 6004 278 4 44 -4.900 0.100 -5.200 0.154 0.00767 216 69 6005 10 4 81 -4.300 0.192 0.900 0.154 -0.01110 166 32 6005 60 4 52 -5.100 0.214 1.400 0.166 -0.00507 173 41 6005 111 4 55 -5.500 0.201 2.700 0.143 -0.00110 182 49 6005 163 4 46 -4.800 0.156 4.500 0.095 -0.00003 196 55 6005 213 4 45 -3.700 0.197 6.800 0.162 0.00139 213 60 ---=== LTMATCH RESULTS ===--- Run Field nFields alt az nGood rowMean rowSig colMean colSig rot ------------------------------------------------------------------------ 6003 44 1 48 300 20 -0.955 0.101 2.931 0.121 -0.00985 6003 44 1 48 300 26 -0.544 0.161 3.210 0.122 -0.01079 6003 44 1 48 300 18 -0.101 0.227 3.197 0.079 -0.01075 6003 44 1 48 300 14 0.344 0.191 3.397 0.154 -0.01142 6003 44 1 48 300 24 0.665 0.190 3.550 0.126 -0.01194 6003 62 1 49 297 22 -0.720 0.156 2.530 0.165 -0.00851 6003 62 1 49 297 28 -0.253 0.143 2.647 0.170 -0.00890 6003 62 1 49 297 24 0.203 0.128 2.849 0.147 -0.00958 6003 62 1 49 297 20 0.596 0.129 2.954 0.233 -0.00993 6003 62 1 49 297 15 0.886 0.151 3.089 0.221 -0.01039 6003 96 1 50 292 28 -0.588 0.127 3.320 0.121 -0.01116 6003 96 1 50 292 23 -0.081 0.104 3.420 0.187 -0.01150 6003 96 1 50 292 31 0.343 0.180 3.731 0.232 -0.01254 6003 96 1 50 292 35 0.871 0.109 3.841 0.170 -0.01291 6003 96 1 50 292 33 1.147 0.132 3.893 0.194 -0.01309 6003 114 1 50 289 28 -0.437 0.169 2.671 0.123 -0.00898 6003 114 1 50 289 34 -0.026 0.153 2.787 0.116 -0.00937 6003 114 1 50 289 23 0.370 0.183 2.873 0.119 -0.00966 6003 114 1 50 289 24 0.872 0.174 2.887 0.095 -0.00971 6003 114 1 50 289 32 1.304 0.177 3.141 0.119 -0.01056 6003 148 1 51 284 31 -0.923 0.148 3.407 0.424 -0.01145 6003 148 1 51 284 40 -0.558 0.144 3.779 0.351 -0.01270 6003 148 1 51 284 39 -0.097 0.135 3.874 0.392 -0.01303 6003 148 1 51 284 36 0.318 0.128 3.930 0.402 -0.01321 6003 148 1 51 284 22 0.765 0.111 4.022 0.427 -0.01352 6003 166 1 52 281 31 -1.429 0.128 3.950 0.204 -0.01328 6003 166 1 52 281 42 -0.987 0.106 4.087 0.222 -0.01374 6003 166 1 52 281 41 -0.558 0.135 4.289 0.250 -0.01442 6003 166 1 52 281 30 -0.190 0.124 4.244 0.306 -0.01427 6003 166 1 52 281 29 0.223 0.165 4.378 0.220 -0.01472 6003 200 1 53 276 70 -0.181 0.171 2.553 0.171 -0.00858 6003 200 1 53 276 78 0.156 0.170 2.811 0.174 -0.00945 6003 200 1 53 276 77 0.675 0.175 2.935 0.203 -0.00987 6003 200 1 53 276 63 1.123 0.143 3.052 0.201 -0.01026 6003 200 1 53 276 72 1.504 0.150 3.175 0.162 -0.01067 6003 217 1 53 273 73 -0.279 0.118 3.321 0.108 -0.01116 6003 217 1 53 273 74 0.083 0.091 3.509 0.136 -0.01180 6003 217 1 53 273 81 0.546 0.118 3.658 0.165 -0.01230 6003 217 1 53 273 79 0.927 0.146 3.786 0.149 -0.01273 6003 217 1 53 273 76 1.350 0.105 3.850 0.132 -0.01294 6003 252 1 54 268 49 -0.521 0.150 3.561 0.184 -0.01197 6003 252 1 54 268 16 -0.051 0.107 3.881 0.178 -0.01305 6003 252 1 54 268 29 0.446 0.140 3.964 0.210 -0.01333 6003 252 1 54 268 39 0.838 0.151 3.954 0.220 -0.01329 6003 252 1 54 268 57 1.212 0.137 4.061 0.271 -0.01365 6003 270 1 54 265 60 -1.107 0.152 3.806 0.238 -0.01280 6003 270 1 54 265 74 -0.735 0.158 4.015 0.215 -0.01350 6003 270 1 54 265 68 -0.271 0.182 4.142 0.169 -0.01393 6003 270 1 54 265 72 0.186 0.192 4.307 0.153 -0.01448 6003 270 1 54 265 74 0.580 0.207 4.400 0.237 -0.01479 6004 289 1 70 323 13 -0.087 0.158 -3.424 0.115 0.01151 6004 289 1 70 323 17 -0.182 0.146 -3.193 0.149 0.01074 6004 289 1 70 323 12 -0.160 0.156 -3.006 0.150 0.01011 6004 289 1 70 323 13 -0.365 0.163 -2.812 0.159 0.00945 6004 289 1 70 323 10 -0.427 0.126 -2.772 0.124 0.00932 6004 302 1 70 323 12 -0.645 0.184 -3.168 0.210 0.01065 6004 302 1 70 323 12 -0.700 0.104 -3.185 0.146 0.01071 6004 302 1 70 323 11 -0.682 0.126 -2.868 0.176 0.00964 6004 302 1 70 323 16 -0.744 0.130 -2.822 0.242 0.00949 6004 302 1 70 323 13 -0.821 0.129 -2.618 0.222 0.00880 ---=== 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 36907, plate -9999 ------- 00:39 36907 0.0 bias ----- sequence 36908, plate 2417 ------- 00:50 36908 10.0 flat 00:52 36909 2.0 arc 00:59 36910 10.0 flat 01:01 36911 2.0 arc ----- sequence 36912, plate -9999 ------- 01:09 36912 0.0 bias ----- sequence 36912, plate 2417 ------- 01:14 36913 10.0 flat ----- sequence 36914, plate -9999 ------- 01:26 36914 0.0 bias ----- sequence 36915, plate -9999 ------- 01:39 36915 0.0 bias ----- sequence 36916, plate 2417 ------- 6.1 5.9 7.3 5.7 DONE w/ 01:49 36916 10.0 flat previous signal 01:52 36917 2.0 arc 02:12 36918 900.1 target ----- sequence 36919, plate 2398 ------- 23.6 19.6 27.1 27.0 02:33 36919 10.0 flat 02:36 36920 2.0 arc 02:55 36921 900.1 target 03:13 36922 900.1 target 03:30 36923 900.1 target ---=== TELESCOPE OFFSETS AND SCALE I ===--- Time Instrument Az Alt Rot Scale pos offset pos offset pos offset ------------------------------------------------------------------------------ 01:46Z 8 2417 190.87 0.0074 81.35 0.0023 12.09 0.0072 1.000160 02:30Z 1 2398 259.03 -0.0022 74.57 0.0043 89.20 -0.0056 1.000260 ---=== 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 ------------------------------------------------------------------------------ 02:11Z 8 2417 1.00016 -1580 -139 50 216 79.2 5.2 12 3 -- < 1.0 02:31Z 1 2398 1.00026 -2568 -951 50 259 74.5 5.1 5 36 -- 1.2 12:25Z imager 1.00000 0 -192 -77 -42 61.1 3.2 20 240 -- 1.0 ---=== WEATHER LOG ===--- Wind Time Temp F Dewp F MPH Direction Dust DIMM Sky 22:53Z 41 17 13 357 (NNW) 115 - PtlyCldy 23:26Z 40 17 9 359 (NNW) 77 - PtlyCldy 23:58Z 39 17 5 5 (N) 116 - PtlyCldy 00:30Z 39 16 9 1 (N) 126 - PtlyCldy 01:00Z 39 16 10 357 (NNW) 48 - PtlyCldy 01:31Z 41 17 4 11 (N) 71 - PtlyCldy 02:02Z 41 18 9 5 (N) 88 - MstlyClr 02:33Z 41 18 12 340 (NNW) 101 - Clear 03:04Z 42 19 6 318 (NW) 99 - Clear 03:35Z 41 19 9 322 (NW) 126 - Clear 04:07Z 41 19 11 322 (NW) 133 - Clear 04:39Z 41 18 10 302 (WNW) 140 - Clear 05:09Z 41 19 11 270 (W) 193 - Clear 05:39Z 40 19 4 263 (W) 178 - Clear 06:10Z 42 19 14 268 (W) 218 - Clear 06:41Z 41 18 7 260 (W) 193 - Clear 07:12Z 39 18 14 239 (WSW) 199 - Clear 07:42Z 38 18 13 245 (WSW) 260 - Clear 08:13Z 39 18 13 241 (WSW) 376 - Clear 08:43Z 39 18 14 259 (W) 413 - Clear 09:14Z 39 18 16 266 (W) 474 - Clear 09:45Z 38 18 21 269 (W) 424 - Clear 10:16Z 39 18 19 290 (WNW) 495 - Clear 10:46Z 39 18 18 276 (W) 607 - Clear 11:17Z 38 18 16 273 (W) 616 - Clear 11:49Z 37 18 14 265 (W) 608 - Clear 12:19Z 37 18 15 252 (WSW) 538 - Clear 12:51Z 37 18 17 246 (WSW) 577 - Clear 13:23Z 36 18 16 228 (SW) 600 - ---=== TELESCOPE STATUS ===--- 23:20Z Fans on, louvers and east door open, west door cracked. 00:23Z Enclosure off 12:55Z Enclosure on, louvers and doors closed, fans off Telescope parked at 121,30 with Cart 1 (Plate 2398) mounted Counterweights at 245 Spectro autofill reconnected No interlocks bypassed Dewar weights at 13:15Z Imager: 147lbs 19psi Spectro: 202lbs 17psi (force-fill in progress) ---=== SOFTWARE USED ===--- IOP/SOP: v4_12_0 Watcher: v2_31_0 MCP: v5_26_2 TPM: tpm_v3_3_0 AstroDa: v15_10 TCC: TCC 2.7.2.1 August 6 2004 sdssProcedures: v2_09 SoS: v5_1_0 hoggPT: v1_6_9 plate-mapper: v4_3_1 ---=== MIRROR NUMBERS ===--- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A -5.8390 -5.8440 Axial B -5.6820 -5.6770 Axial C 0.9320 0.9420 Trans D -9.9940 -9.9940 Lateral E 10.3759 10.3759 Lateral F 11.9507 11.9380 GALILS Commanded: 4700. -2450. 3000. -7800. 3300. 3000. Actual: 4711. -2457. 2997. -7825. 3296. 3024. SETMIR VALUES PriDesOrient: 0.00 -1.68 7.05 385.25 92.02 PriOrient: 0.00 -1.52 7.02 384.99 93.81 SECONDARY: ---------- Focus: 0.00 Air Temp.: 4.6 Alt.: 30.066151 MIGS TONIGHT NOMINAL Axial A 1.5410 1.5420 Axial B 1.0610 1.0470 Axial C 1.1730 1.1650 Trans D -0.1220 -0.1240 GALILS Commanded: 1593457. 1603580. 1554276. -6800. -5900. Actual: 1593447. 1603642. 1554316. -6820. -5882. SETMIR VALUES SecDesOrient: 1257.00 15.87 0.00 -50.00 136.76 SecOrient: 1256.98 15.87 -0.02 -49.57 136.74 ---=== PROBLEMS IN DETAIL ===--- Spectro Focus Details: sp1 sp2 Coll_motor_A 1751 -8206 Coll_motor_B 1753 -11498 Coll_motor_C 1738 -10824 im> caget tpm_TM_PMSSAvg tpm_TM_TelairAvg.VALA tpm_TM_PMSSAvg 2.160 tpm_TM_TelairAvg.VALA 4.681 b1 r1 b2 r2 Mean Offset .47 -.30 .00 -.09 Recommended Piston 2720 830 Indicated that some adjustment should be made for average night temperature, around 0 C. But Steph prefers not to make any change since the spectrogaph was happy through whole last night which had very similar conditions with tonight, presumablly. So no change is made. Plate Database Error -------------------- Tonight when entering the database information for Plate 2417 (entering one exposure and declaring the plate done), we encountered an error in which the database accepted the declaration but the actual web page did not reflect this. Entering exposures often resulted in an error message. By the time we thought to copy the error message, we could no longer reproduce the error. This also occured last Saturday night (MJD53764), and in both occasions from our laptops running Safari under Mac OS X. We *think* this may have been just user error (trying to update the database before logging into the plate-mapper web page, but just for the record...) goDrift Becomes Flummoxed; Times Out ------------------------------------ During the setup for imaging Run 1600, goDrift timed out, apparently thinking a slew was still in progress even though we're sure the slew from the gotoField was finished. Pertinent watcher errors: Text="Could not queue a write to user:message output dies": (2006-01-31 10:10:06Z) Facil="SYSTEM":VMSMsg:"DEVOFFLINE" (2006-01-31 10:10:06Z) Facil="SYSTEM":VMSMsg:"HANGUP" (2006-01-31 10:10:06Z) Text="Write to user failed:output terminates to user7": (2006-01-31 10:10:06Z) We also note this error *during* the slew on the gotoField: tracking (Excessive Az Tracking Error:: 2006-01-31 10:06:09Z) And last but not least, it appears we neither missed a fiducial crossing nor were there errors too large to correct.