APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Thursday September 20, 2001 (MJD 52173) ---=== OBSERVING TEAM ===--- Swing: Mike Harvanek (APO) Night: Jurek Krzesinski (APO), Pete Newman (APO ---=== OBSERVING PLAN ===--- Science. Spectroscopy until moon-set (21:40), then imaging if conditions permit. ---=== OBSERVING SUMMARY ===--- Two spectro plates completed. Imaging of 82N with good data and 82S spoiled by clouds. One exposure on another spectro plate. ---=== OBSERVING LOG ===--- Thin high cirrus in late afternoon, clearing. By sunset, sky loooked clear above 5 deg above horizon. With moon up until 21:40, we started with spectroscopy, and continued with spectroscopy while a N to NE wind gave us variable seeing. We had difficulty finding best focus in the spectro guider, finding a local, but not global minimum in the FWHM that led us to run about 100 steps from best focus for the first plate. We folklored a procedure for avoiding this in future. We completed two plates (372, 644), then switched to imaging on strip 82N (good data), then 82S (suspect due to clouds, which formed locally and snuck up behind us from the east). Reverted to spectroscopy to get one exposure on plate 704 before twilight. No problems noted all night. Wow! Oops - spoke too soon: we just had an imager ion pump critical error (0.16 uTorr) at 06:08. cc imstat shows the pressure hovering around 0.14 uTorr, with occasional glitches higher. Connie: do we need to attend to this? We realised we have not seen the 'full-step error' on the secondary galils in two nights. The last occurence in the tcc log files was from two nights ago (on MJD 52171, 2001/9/18), but it was recuring almost every night before that. Is this now fixed? There was no mention in the engineering logs of a fix being applied. endNight is running happily as this log is mailed. Assume it finished unless you hear otherwise. Observing sequence: 20:25 Plate 372, cartridge 8. Done in 4 exposures. 22:06 Plate 644, cartridge 9. Done in 4 exposures. 00:00 Change to imaging. All seeing estimates below from seeingRun unless specified otherwise. 00:45 Strip 82 N. Repeat scan. Donuts and focused frames copied to sdsshost:/data/photo/optics/52173. 01:23 Start science. 03:31 End of science. Seeing was 1.6 to 1.3 arcsec throughout. Good data. 03:43 End of run 03:47 Strip 82 S. Abandoned because offsets not finished before science area. 04:04 Strip 82 S. Try again. 04:10 Very small clouds passing to SE from now through 04:36. Do not seem to pass through the field observed. Hoggpt does not flag this period as cloudy. 04:18 Start science. Seeing 1.4 arcsec. 04:41 More clouds to E below alt=30. We are pointing to az=-7, alt=56, away from the clouds, but this run must be considered suspect. Run stopped early as clouds increase . 04:50 Switch back to spectroscopy. 05:15 Plate 708, cartridge 3. One exposure ending into twilight, which may explain the 'Red monster' warning from SoS. ---=== IMAGING RUN SUMMARY ===--- Run Stripe Flavor Lambda Last Begin End Frame Comments ------------------------------------------------------------------ 2587 100 O ignore 17.86 22.25 42 Doghouse bias 2588 100 O bias 164.30 168.24 40 On telescope 2589 82 N science -169.21 -122.42 324 Good data throughout 2590 82 S ignore -143.36 -140.21 35 Offsets incomplete 2591 82 S science -143.76 -131.53 95 Suspect due to clouds ---=== IMAGING RUN DETAILS ===--- All seeing estimated from seeingRun unless specified otherwise. Strip 82 N. Run 2589 Repeat scan. Aim to observe lambda {-158, -126} --------------------- Frame Lambda Contents 22 -166 In-focus frame (focus = -466) 28 Donuts at focus - 400 32 -165 Donuts at focus + 400 62 -160 Skippy and focus good, ramp up to science. Seeing acceptable. 81 -158 Start science. Seeing now good (just in time!). 296 -126 End science, ramp down. Seeing good throughout, 1.6 to 1.3 arcsec. the science area in range 1.6 -- 1.3 arcsec. 316 -323 End of run. Strip 82 S. Run 2590 Aim to observe lambda {-140, -126} ABANDONED --------------------- Ignore - did not get the offsets complete before the science area. Strip 82 S. Run 2591 Aim to observe lambda {-140, -126} --------------------- Frame Lambda Contents 19 -142 Ramp up to science. Focus and skippy both good. Seeing 1.3 arcsec. 32 -140 Start science. Seeing 1.4 arcsec. 86 -132 End science. Seeing 1.3 arcsec, but clouds encroaching from E. 87 -132 End drift. Whole run is suspect due to clouds. ---=== SKIPPY RESULTS ===--- Run Frame nFrames stars muErr muRms nuErr nuRms rot --------------------------------------------------------------- 2589 10 4 30 -1.000 0.746 -2.700 0.772 -0.03192 2589 38 4 51 -1.800 0.156 -2.400 0.111 -0.03000 2589 44 4 47 -1.800 0.205 -2.500 0.150 -0.03023 2589 62 4 40 0.100 0.170 0.200 0.109 0.00129 2589 81 4 43 0.100 0.148 0.100 0.112 0.00081 2589 116 4 52 0.500 0.172 0.500 0.110 0.00138 2589 149 4 41 2.000 0.151 0.500 0.110 0.00103 2589 184 4 51 0.000 0.227 0.600 0.418 0.00103 2589 217 4 63 1.200 0.743 0.700 0.142 0.00172 2589 252 4 66 0.200 0.514 0.600 0.226 0.00199 2589 287 4 32 -0.200 0.158 0.700 0.110 0.00189 2590 10 4 61 -1.500 0.127 -8.200 0.123 0.00235 2590 20 4 55 -1.900 0.115 -8.400 0.119 0.00233 2591 10 4 68 -0.700 0.111 -1.700 0.120 0.00094 2591 15 4 44 -0.600 0.136 -1.800 0.116 0.00078 2591 49 4 71 0.000 0.671 -1.600 0.177 0.00009 2591 82 4 61 0.800 0.157 -2.300 0.124 0.00064 2591 83 4 57 0.900 0.167 -2.200 0.145 0.00094 ---=== LTMATCH RESULTS ===--- Run Field nFields nGood rowMean rowSig colMean colSig rot --------------------------------------------------------------- 2589 55 1 11 11.183 11.204 11.981 11.984 -0.04028 2589 55 1 9 9.199 9.216 12.025 12.025 -0.04043 2589 55 1 7 6.710 6.741 12.183 12.185 -0.04096 2589 55 1 9 5.061 5.072 12.172 12.180 -0.04092 2589 55 1 15 1.803 1.844 12.205 12.209 -0.04103 2589 91 1 8 1.997 2.004 0.674 0.723 -0.00227 2589 91 1 10 1.710 1.736 0.745 0.807 -0.00250 2589 91 1 9 1.279 1.298 0.825 0.879 -0.00277 2589 91 1 12 0.816 0.839 0.708 0.735 -0.00238 2589 91 1 14 0.247 0.344 0.980 1.013 -0.00329 2589 125 1 11 1.696 1.720 1.451 1.483 -0.00488 2589 125 1 19 1.614 1.624 0.740 0.776 -0.00249 2589 125 1 14 1.135 1.148 1.015 1.103 -0.00341 2589 125 1 16 0.872 0.895 1.392 1.445 -0.00468 2589 125 1 16 0.510 0.541 0.985 1.019 -0.00331 2589 159 1 11 2.162 2.171 0.450 0.533 -0.00151 2589 159 1 9 1.932 1.960 0.477 0.556 -0.00160 2589 159 1 21 1.495 1.511 0.465 0.553 -0.00156 2589 159 1 16 0.999 1.033 0.734 0.754 -0.00247 2589 159 1 12 0.548 0.563 0.755 0.791 -0.00254 2589 194 1 17 2.018 2.024 0.628 0.658 -0.00211 2589 194 1 9 1.640 1.644 0.828 0.852 -0.00278 2589 194 1 24 1.338 1.349 1.136 1.173 -0.00382 2589 194 1 10 0.892 0.915 1.140 1.186 -0.00383 2589 194 1 15 0.804 0.832 0.993 1.037 -0.00334 2589 228 1 20 1.914 1.937 0.548 0.590 -0.00184 2589 228 1 21 1.780 1.816 0.181 0.333 -0.00061 2589 228 1 15 1.614 1.671 0.378 0.479 -0.00127 2589 228 1 21 1.117 1.178 0.188 0.290 -0.00063 2589 228 1 13 0.424 0.462 0.703 0.756 -0.00236 2589 262 1 20 1.881 1.894 0.254 0.309 -0.00085 2589 262 1 20 1.593 1.608 0.285 0.352 -0.00096 2589 262 1 16 1.239 1.247 0.526 0.566 -0.00177 2589 262 1 15 0.893 0.930 0.623 0.651 -0.00209 2589 262 1 18 0.645 0.680 0.578 0.632 -0.00194 2589 298 1 13 1.997 2.026 0.360 0.395 -0.00121 2589 298 1 18 1.797 1.814 0.361 0.441 -0.00121 2589 298 1 17 1.310 1.347 0.223 0.292 -0.00075 2589 298 1 7 0.764 0.780 0.030 0.220 -0.00010 2589 298 1 14 0.517 0.559 0.638 0.673 -0.00215 2591 25 1 8 1.600 1.649 0.353 0.538 -0.00119 2591 25 1 14 1.705 1.720 0.609 0.747 -0.00205 2591 25 1 18 1.496 1.513 0.391 0.609 -0.00131 2591 25 1 15 1.665 1.708 0.534 0.775 -0.00180 2591 25 1 13 1.641 1.653 0.008 0.330 -0.00003 2591 58 1 15 1.357 1.378 -0.991 1.028 0.00333 2591 58 1 18 1.450 1.456 -1.046 1.060 0.00352 2591 58 1 15 1.523 1.569 -1.178 1.199 0.00396 2591 58 1 15 1.697 1.757 -1.118 1.204 0.00376 2591 58 1 19 2.169 2.193 -0.779 0.829 0.00262 2591 76 1 20 2.041 2.055 -0.941 0.991 0.00316 2591 76 1 22 2.153 2.166 -0.730 0.784 0.00245 2591 76 1 9 2.475 2.493 -0.713 0.749 0.00240 2591 76 1 15 2.493 2.505 -0.881 0.913 0.00296 2591 76 1 19 2.655 2.676 -0.833 0.856 0.00280 2591 76 1 20 2.041 2.055 -0.941 0.991 0.00316 2591 76 1 22 2.153 2.166 -0.730 0.784 0.00245 2591 76 1 9 2.475 2.493 -0.713 0.749 0.00240 2591 76 1 15 2.493 2.505 -0.881 0.913 0.00296 2591 76 1 19 2.655 2.676 -0.833 0.856 0.00280 2591 76 1 20 2.041 2.055 -0.941 0.991 0.00316 2591 76 1 22 2.153 2.166 -0.730 0.784 0.00245 2591 76 1 9 2.475 2.493 -0.713 0.749 0.00240 2591 76 1 15 2.493 2.505 -0.881 0.913 0.00296 2591 76 1 19 2.655 2.676 -0.833 0.856 0.00280 2591 76 1 20 2.041 2.055 -0.941 0.991 0.00316 2591 76 1 22 2.153 2.166 -0.730 0.784 0.00245 2591 76 1 9 2.475 2.493 -0.713 0.749 0.00240 2591 76 1 15 2.493 2.505 -0.881 0.913 0.00296 2591 76 1 19 2.655 2.676 -0.833 0.856 0.00280 2591 76 1 20 2.041 2.055 -0.941 0.991 0.00316 2591 76 1 22 2.153 2.166 -0.730 0.784 0.00245 2591 76 1 9 2.475 2.493 -0.713 0.749 0.00240 2591 76 1 15 2.493 2.505 -0.881 0.913 0.00296 2591 76 1 19 2.655 2.676 -0.833 0.856 0.00280 ---=== SPECTROSCOPY DATA SUMMARY ===--- UT Exp Time flavor comment (S/N)^2 totals ========================================== b1 r1 b2 r2 ----- sequence 10946, plate -9999 ------- 20:35 10946 0.0 bias {{}} 00:00 10947 0.0 bias {{}} 01:30 10948 0.0 bias {{}} ----- sequence 10949, plate 372 ------- 02:09 10949 10.0 flat pre-flat 02:11 10950 2.0 arc pre-arc 02:31 10951 901.0 target science 4.1 4.4 3.8 2.8 02:49 10952 900.0 target science 4.2 4.4 3.8 3.0 03:13 10953 901.0 target science 4.6 5.3 4.2 3.4 03:46 10954 1702.0 target science 10.9 11.5 9.7 5.3 Totals: 23.8 25.6 21.6 14.5 03:53 10955 240.0 smear {{Smear Pattern}} 03:56 10956 10.0 flat post-flat 03:58 10957 2.0 arc post-arc Plate 372 was observed in sequence(s) 10949 for a total of 4404 seconds ----- sequence 10958, plate 644 ------- 04:15 10958 10.0 flat pre-flat 04:17 10959 2.0 arc pre-arc 04:36 10960 900.0 target science 3.5 2.2 3.2 2.7 05:09 10961 1802.0 target science 8.6 4.3 8.4 6.3 05:27 10962 901.0 target science 4.2 3.1 4.2 3.3 05:51 10963 901.0 target science 4.6 3.5 4.6 3.3 Totals: 20.8 13.2 20.4 15.6 05:58 10964 240.0 smear {{Smear Pattern}} Plate 644 was observed in sequence(s) 10958 for a total of 4504 seconds 10:58 10965 1148.0 target science RUBBISH EXPOSURE ----- sequence 10966, plate 708 ------- 11:23 10966 10.0 flat pre-flat 11:25 10967 2.0 arc pre-arc 11:44 10968 901.0 target science 2.9 3.7 2.1 2.9 Plate 708 was observed in sequence(s) 10966 for a total of 901 seconds ---=== TELESCOPE OFFSETS AND SCALE I ===--- Time Instrument getclock Az Alt Rot Scale ------------------------------------------------------------------------------ 20:08 8 372 1001038134 0.006210 0.001166 -0.004475 1.000050 21:08 8 372 1001041693 0.006210 0.001166 -0.004475 0.999970 22:40 9 644 1001047225 0.006302 -0.000071 0.020305 0.999900 02:58 imager 1001062700 0.007552 0.000289 -0.009895 1.000000 04:20 imager 1001067624 0.008302 0.002567 -0.007495 1.000000 05:37 3 708 1001072225 0.005566 0.003179 0.026255 1.000000 ---=== TELESCOPE OFFSETS AND SCALE II ===--- ---=== DATA TAPE SUMMARY ===--- Goes: JL4451-JL4457 Stays: JL4458-JL4464 ---=== FOCUS LOG ===--- setmir piston Temp Wind Time Inst scale M1 M2 Foc Az Alt (C) MPH Dir filt fwhm ------------------------------------------------------------------------------ 20:11 8 372 1.00005 -493 615 -200 59 38.2 14.8 7 5 -- 2.0'' 21:08 8 372 0.99997 296 1259 -175 45 47.6 15.5 8 10 -- 2.0'' 22:40 9 644 0.99990 986 1801 -200 5 49.1 15.6 4 0 -- 2.5'' 23:17 9 644 0.99990 986 1752 -250 -9 48.9 15.6 9 346 -- 2.0'' 02:13 imager 1.00000 0 -680 -456 36 51.5 15.3 13 39 sR 1.4'' 02:58 imager 1.00000 0 -682 -458 36 51.5 15.2 15 56 sR 1.3'' 04:20 imager 1.00000 0 -718 -479 -8 56.9 14.7 5 258 sR 1.5'' 05:37 3 708 1.00000 0 902 -280 -41 49.5 14.3 1 356 -- 1.9'' sR = seeingRun measure. ---=== WEATHER LOG ===--- Wind Time Temp F Dewp F MPH Direction Dust DIMM Sky 16:33 65 26 6 325 (NW) 134 - Clear 17:05 66 28 8 301 (WNW) 173 - '' 17:35 65 31 7 284 (WNW) 189 - '' 18:05 62 28 0 313 (NW) 181 - '' 18:36 61 26 6 340 (NNW) 198 - '' 19:06 60 25 1 347 (NNW) 191 - '' 19:36 59 24 7 0 (N) 198 - '' 20:08 59 24 8 8 (N) 191 - '' 20:41 59 25 9 6 (N) 180 - '' 21:13 59 25 5 17 (NNE) 192 - '' 21:45 60 26 6 357 (NNW) 182 - '' 22:17 60 24 3 65 (ENE) 213 - '' 22:49 60 24 9 5 (N) 202 - '' 23:20 60 24 6 357 (NNW) 203 - '' 23:54 59 27 6 355 (NNW) 182 - '' 00:26 58 30 4 10 (N) 177 - '' 00:58 56 31 9 11 (N) 191 - '' 01:31 59 29 11 24 (NNE) 188 - '' 02:03 59 30 11 31 (NNE) 208 - '' 02:39 59 23 14 54 (NE) 127 - '' 03:11 59 24 15 59 (ENE) 182 - '' 03:44 59 24 13 51 (NE) 159 - '' 04:16 58 24 2 70 (ENE) 198 - Partly cloudy 04:48 58 24 0 338 (NNW) 215 - '' 05:19 58 27 1 330 (NNW) 199 - '' 05:57 58 28 0 217 (SW) 204 - '' ---=== TELESCOPE STATUS ===--- 19:15 Enclosure off, extractor on. 19:45 Cone fans on (a little late). 06:10 Enclosure on, fans off. Telescope stowed at 30 deg, cartridge 1 (plate 637) mounted ready for start of night. Counterweights at 270. Instruments on autofill, LN2 dewars at 06:20: Spectro: 68 lb Imager: 183 lb Building interlocks overriden still pending work on slider rails. ---=== SOFTWARE USED ===--- IOP/SOP: v3_56_9 Watcher: v2_10_0 MCP: v5_4_3 TPM: v2_4_1 AstroDa: v14_36 TCC: 2.5.5 sdssProcedures: v1_29 ---=== MIRROR NUMBERS ===--- Time dpTemp dewPt Press TmpOut HumOut Windd Winds 19:40 58.6 24.9 21.62 27 0.5 5.5 14 PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A: 0.0750 0.0710 Axial B: -0.0850 -0.0980 Axial C: 0.0620 0.0610 Trans D: 4.1810 4.1800 Lateral E: 1.9350 1.9365 Lateral F: 0.4360 0.4370 GALILS Commanded: 5377. -3699. 923. -208. 31535. 30647. Actual: 5400. -3700. 900. -200. 31550. 30650. SETMIR VALUES primDesOrient: 0.00 -11.80 23.00 1256.90 642.10 primOrient: 0.00 -12.16 22.81 1257.41 642.19 SECONDARY: ---------- Focus: 0.0 Air temp: 14.8 C Altitude: 30.00 MIGS TONIGHT NOMINAL Axial A: -1.2950 -1.2900 Axial B: -1.3060 -1.3150 Axial C: -1.3140 -1.3060 Trans D: 0.1410 0.1890 GALILS Commanded: 1583837. 1583837. 1583837. 2595. 3795. Actual: 1331795. 1330736. 1332532. 2650. 3850. SETMIR VALUES secDesOrient: 1257.00 0.00 0.00 0.00 -175.00 secOrient: 1257.43 0.22 0.49 0.32 -175.27 ---=== PROBLEMS IN DETAIL ===---