Date: Thu, 31 Aug 2000 05:31:36 -0600 From: Dan Long Subject: 2.5m obslog 20000830 (MJD 51787) APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Wednesday August 30, 2000 (MJD 51787) OBSERVING TEAM: =============== Dan Long (APO) Steph Snedden (APO) Bryan Laubscher (LNAL) Eric Neilsen (JHU) PT VISITORS: ========= Jim Gunn (PU) THE PLAN: ========= Science, weather permitting. SYNOPSIS: ========= Weather was not permitting. Closed all night. GENERAL COMMENTS (see Problems below for details): ================================================== We were teased by several sucker holes, but each time we decided to open the skies closed up again, so we never opened tonight. We did slew the telescope in altitude several times in succession and took excerpts from the fiducial and murmur logs and added notes about what we were asking the TCC to do. This is listed at the end of the night log. With the exception of a couple slightly too large to correct entries, the system behaved nominally. That is at the start of each slew when the previous error was small enough to correct, the murmur log would have a line saying that the correction was applied. This apparently corresponds to the SET_FIDUCIAL_ERROR line in the fiducial log ( Does this mean that the encoders were actually reset in the MEI? ). This also assumes that lines in the fiducial log starting with ALT_FIDUCIAL indicate that not only was an error measured, but it was acted on by the mcp ( Is this true? ). Jim Gunn took a look at the bias levels and noise for all the imager chips during a bias run this afternoon to make sure everything was still happy. He was satisfied that all is still well. DATA ACQUISITION (see IOP/SOP output below): =========================================== IMAGING: -------- Run Type --- ---- 1651 bias test 1652 bias test SPECTROSCOPY: ------------- Frame Exposure (sec) Flavor/comments ----- -------------- --------------- OFFSETS: Cart - ---: Calib offsets 0, 0, 0. Meridian scale 1.000000 TAPES: None. MIRROR NUMBERS ============== PRIMARY: -------- MIGS TONIGHT SHOULD BE Axial A: 1.9310 1.9310 Axial B: 0.5585 0.5585 Axial C: 0.5550 0.5560 Trans D: 0.4065 0.4065 Lateral E: 1.9160 1.9165 Lateral F: 0.4160 0.4170 GALILS Commanded: 4751., -2743., 591., -10848., 14572., 14119. Actual: 4750., -2750., 600., -10850., 14550., 14100. SETMIR VALUES primDesOrient: 0.00, -2.30, 11.70, 640.50, 128.10 primOrient: 0.00, -2.28, 11.84, 639.70, 127.98 SECONDARY: ---------- Focus: 0 Temp: 10.2 Altitude: 30.0 MIGS Axial A: -1.335 Axial B: -1.238 Axial C: -1.276 Trans D: 0.190 GALILS Commanded: 1585850., 1547250., 1617850., -5400., -10150. Actual: 1559403., 1525104., 1586219., -5400., -10150. SETMIR VALUES secDesOrient: -2457.58, -20.00, -8.00, 50.00, 67.54 secOrient: 1235.76, -17.22, -7.22, 50.06, 67.45 FOCUS LOG: ========== M1 Piston M2 Piston Temp Wind Time Inst setmir TCC setmir Az Alt C Dir MPH filt FWHM " WEATHER SYNOPSIS ================ Skies were variably cloudy all night, repeatedly going from mostly cloudy to mostly clear and back again on 5 to 15 minute time scales. Thunderstorms were to the south and east in the distance all night. WEATHER DATA: ============= Wind Time Temp F Dewp F MPH Direction Dust DIMM Sky 16:01 59 41 8 186 (S) 426 - Mostly Cloudy 17:01 55 46 21 138 (SE) 514 - Mostly Cloudy 18:01 58 43 15 141 (SE) 348 - Mostly Cloudy 19:01 57 45 22 143 (SE) 449 - Cloudy 20:01 54 40 17 212 (SSW) 235 - Cloudy 21:01 55 36 4 249 (WSW) 303 - Cloudy 22:01 54 36 7 207 (SSW) 266 - Cloudy 23:01 53 35 7 181 (S) 249 - Mostly Clear 00:01 54 36 6 183 (S) 243 - Partly Cloudy 01:01 52 37 2 192 (SSW) 310 - Mostly Cloudy 02:01 53 37 7 176 (S) 289 - Cloudy 03:01 52 40 11 189 (S) 368 - Cloudy 04:01 49 41 5 158 (SSE) 420 - Partly Cloudy 05:01 50 42 5 217 (SW) 444 - Mostly Cloudy LN2 SCHEDULE: ============= Spectrographs were filled at 04:30. 05:00 Dewar wt 133 lb Imager dewar changed during the day. 05:00 Dewar wt 160 lb TELESCOPE STATUS: ================= Stowed at 30 deg alt, cartridge 7 installed. INTERLOCKS: =========== none bypassed SOFTWARE USED: ============== IOP/SOP: v3_17_5_3 Watcher: v2_8_3 MCP: v4_3_2b TPM: v2_0_0 AstroDa: 14_34 TCC: 2.4.0b2 DATA LOGS FROM IOP/SOP: ======================= FIDUCIAL AND MURMUR LOG EXCERPTS: ================================ Upper case lines are from mcp fiducial log ( mcpFiducials-51787.dat ) Lower case lines starting with time stamp are tLatch lines from murmur log. Slew #: lines are comments on what was issues to the TCC. SET_FIDUCIAL_ERROR 967691530 altitude -127 Slew 1: Pulled stop button and did axis init, then slewed to 77 alt. ALT_FIDUCIAL 967705009 2 7431524 7431499 7433744 28.919 2922 SET_FIDUCIAL_ERROR 967705028 altitude 25 ALT_FIDUCIAL 967705041 2 7431524 7431564 7433734 28.919 3200 ALT_FIDUCIAL 967705053 3 11767227 11767306 11772274 45.792 -57 ALT_FIDUCIAL 967705063 4 15425645 15425767 15433130 60.028 -3235 ALT_FIDUCIAL 967705076 5 19312792 19312581 19322861 75.154 -6378 Slew 2: Err too large on 75 fid ( -211 ) Did axis init before slewing to 25 alt ALT_FIDUCIAL 967705151 5 19312792 19312542 19322870 75.153 -6604 ALT_FIDUCIAL 967705164 4 15425645 15425433 15433141 60.027 -3468 ALT_FIDUCIAL 967705173 3 11767227 11767035 11772324 45.791 -633 ALT_FIDUCIAL 967705186 2 7431524 7431288 7433728 28.918 2873 Slew 3: Err too large on 30 fid ( -236 Did axis init before slewing to 77 alt ALT_FIDUCIAL 967705243 2 7431524 7431367 7433688 28.919 3184 ALT_FIDUCIAL 967705255 3 11767227 11767107 11772220 45.791 -73 ALT_FIDUCIAL 967705265 4 15425645 15425571 15433072 60.028 -3252 ALT_FIDUCIAL 967705278 5 19312792 19312678 19322800 75.154 -6378 Slew 4: Slewed to 25 alt, no axis init. SET_FIDUCIAL_ERROR 967705311 altitude 114 ALT_FIDUCIAL 967705319 5 19312792 19312752 19322922 75.154 -6535 ALT_FIDUCIAL 967705332 4 15425645 15425601 15433195 60.028 -3609 ALT_FIDUCIAL 967705341 3 11767227 11767180 11772368 45.791 -771 ALT_FIDUCIAL 967705354 2 7431524 7431441 7433787 28.919 2788 Slew 5: Slewed to 77 alt, no axis init. SET_FIDUCIAL_ERROR 967705380 altitude 83 ALT_FIDUCIAL 967705392 2 7431524 7431598 7433833 28.920 3168 ALT_FIDUCIAL 967705404 3 11767227 11767320 11772361 45.792 -112 ALT_FIDUCIAL 967705414 4 15425645 15425768 15433214 60.028 -2960 ALT_FIDUCIAL 967705427 5 19312792 19312755 19322945 75.154 -6391 Slew 6: Slewed to 25 alt, no axis init. SET_FIDUCIAL_ERROR 967705447 altitude 37 ALT_FIDUCIAL 967705456 5 19312792 19312753 19322989 75.154 -6597 ALT_FIDUCIAL 967705469 4 15425645 15425636 15433261 60.028 -3782 ALT_FIDUCIAL 967705478 3 11767227 11767260 11772446 45.791 -604 ALT_FIDUCIAL 967705491 2 7431524 7431524 7433858 28.919 2902 Slew 7: Slewed to 77 alt, no axis init. ALT_FIDUCIAL 967705525 2 7431524 7431600 7433820 28.920 3082 ALT_FIDUCIAL 967705537 3 11767227 11767335 11772349 45.792 -273 ALT_FIDUCIAL 967705547 4 15425645 15425802 15433202 60.028 -3114 ALT_FIDUCIAL 967705559 5 19312792 19312926 19322933 75.155 -6315 Slew 8: Slewed to 30 alt, no axis init. SET_FIDUCIAL_ERROR 967705577 altitude -134 ALT_FIDUCIAL 967705586 5 19312792 19312749 19322807 75.154 -6522 ALT_FIDUCIAL 967705599 4 15425645 15425594 15433078 60.028 -3576 ALT_FIDUCIAL 967705609 3 11767227 11767170 11772253 45.791 -719 Aug 31 00:56:49 tLatch dsc_I_trcInfo alt fiducial 28.92 deg Aug 31 00:56:49 tLatch dsc_I_trcInfo err = -25 poserr = -25 ticks Slew 1: Pulled stop button and did axis init, then slewed to 77 alt. Aug 31 00:57:08 tLatch dsc_I_trcInfo Applying correction 25 to altitude Aug 31 00:57:21 tLatch dsc_I_trcInfo alt fiducial 28.92 deg Aug 31 00:57:21 tLatch dsc_I_trcInfo err = 40 poserr = 40 ticks Aug 31 00:57:33 tLatch dsc_I_trcInfo alt fiducial 45.79 deg Aug 31 00:57:33 tLatch dsc_I_trcInfo err = 81 poserr = 79 ticks Aug 31 00:57:43 tLatch dsc_I_trcInfo alt fiducial 60.03 deg Aug 31 00:57:43 tLatch dsc_I_trcInfo err = 113 poserr = 122 ticks Aug 31 00:57:56 tLatch dsc_I_trcInfo alt fiducial 75.15 deg Aug 31 00:57:56 tLatch dsc_I_trcInfo err = -158 poserr = -211 ticks Slew 2: Err too large on 75 fid ( -211 ) Did axis init before slewing to 25 alt Aug 31 00:59:01 tLatch dsc_I_trcInfo Applying correction 211 to altitude Aug 31 00:59:01 tLatch dsc_E_trcErr correction for altitude 211 is too large Aug 31 00:59:11 tLatch dsc_I_trcInfo alt fiducial 75.15 deg Aug 31 00:59:11 tLatch dsc_I_trcInfo err = -39 poserr = -250 ticks Aug 31 00:59:24 tLatch dsc_I_trcInfo alt fiducial 60.03 deg Aug 31 00:59:24 tLatch dsc_I_trcInfo err = -334 poserr = -212 ticks Aug 31 00:59:34 tLatch dsc_I_trcInfo alt fiducial 45.79 deg Aug 31 00:59:34 tLatch dsc_I_trcInfo err = -271 poserr = -192 ticks Aug 31 00:59:46 tLatch dsc_I_trcInfo alt fiducial 28.92 deg Aug 31 00:59:46 tLatch dsc_I_trcInfo err = -276 poserr = -236 ticks Slew 3: Err too large on 30 fid ( -236 ) Did axis init before slewing to 77 alt Aug 31 01:00:33 tLatch dsc_I_trcInfo Applying correction 236 to altitude Aug 31 01:00:33 tLatch dsc_E_trcErr correction for altitude 236 is too large Aug 31 01:00:44 tLatch dsc_I_trcInfo alt fiducial 28.92 deg Aug 31 01:00:44 tLatch dsc_I_trcInfo err = 79 poserr = -157 ticks Aug 31 01:00:56 tLatch dsc_I_trcInfo alt fiducial 45.79 deg Aug 31 01:00:56 tLatch dsc_I_trcInfo err = 72 poserr = -120 ticks Aug 31 01:01:06 tLatch dsc_I_trcInfo alt fiducial 60.03 deg Aug 31 01:01:06 tLatch dsc_I_trcInfo err = 138 poserr = -74 ticks Aug 31 01:01:18 tLatch dsc_I_trcInfo alt fiducial 75.15 deg Aug 31 01:01:18 tLatch dsc_I_trcInfo err = 136 poserr = -114 ticks Slew 4: Slewed to 25 alt, no axis init. Aug 31 01:01:52 tLatch dsc_I_trcInfo Applying correction 114 to altitude Aug 31 01:02:00 tLatch dsc_I_trcInfo alt fiducial 75.15 deg Aug 31 01:02:00 tLatch dsc_I_trcInfo err = -40 poserr = -40 ticks Aug 31 01:02:12 tLatch dsc_I_trcInfo alt fiducial 60.03 deg Aug 31 01:02:12 tLatch dsc_I_trcInfo err = -84 poserr = -44 ticks Aug 31 01:02:22 tLatch dsc_I_trcInfo alt fiducial 45.79 deg Aug 31 01:02:22 tLatch dsc_I_trcInfo err = -41 poserr = -47 ticks Aug 31 01:02:34 tLatch dsc_I_trcInfo alt fiducial 28.92 deg Aug 31 01:02:34 tLatch dsc_I_trcInfo err = -40 poserr = -83 ticks Slew 5: Slewed to 77 alt, no axis init. Aug 31 01:03:01 tLatch dsc_I_trcInfo Applying correction 83 to altitude Aug 31 01:03:12 tLatch dsc_I_trcInfo alt fiducial 28.92 deg Aug 31 01:03:12 tLatch dsc_I_trcInfo err = 74 poserr = 74 ticks Aug 31 01:03:25 tLatch dsc_I_trcInfo alt fiducial 45.79 deg Aug 31 01:03:25 tLatch dsc_I_trcInfo err = 57 poserr = 93 ticks Aug 31 01:03:34 tLatch dsc_I_trcInfo alt fiducial 60.03 deg Aug 31 01:03:34 tLatch dsc_I_trcInfo err = 84 poserr = 123 ticks Aug 31 01:03:47 tLatch dsc_I_trcInfo alt fiducial 75.15 deg Aug 31 01:03:47 tLatch dsc_I_trcInfo err = -80 poserr = -37 ticks Slew 6: Slewed to 25 alt, no axis init. Aug 31 01:04:07 tLatch dsc_I_trcInfo Applying correction 37 to altitude Aug 31 01:04:16 tLatch dsc_I_trcInfo alt fiducial 75.15 deg Aug 31 01:04:16 tLatch dsc_I_trcInfo err = -39 poserr = -39 ticks Aug 31 01:04:29 tLatch dsc_I_trcInfo alt fiducial 60.03 deg Aug 31 01:04:29 tLatch dsc_I_trcInfo err = -169 poserr = -9 ticks Aug 31 01:04:39 tLatch dsc_I_trcInfo alt fiducial 45.79 deg Aug 31 01:04:39 tLatch dsc_I_trcInfo err = -97 poserr = 33 ticks Aug 31 01:04:51 tLatch dsc_I_trcInfo alt fiducial 28.92 deg Aug 31 01:04:51 tLatch dsc_I_trcInfo err = -111 poserr = 0 ticks Slew 7: Slewed to 77 alt, no axis init. Aug 31 01:05:25 tLatch dsc_I_trcInfo alt fiducial 28.92 deg Aug 31 01:05:25 tLatch dsc_I_trcInfo err = 76 poserr = 76 ticks Aug 31 01:05:38 tLatch dsc_I_trcInfo alt fiducial 45.79 deg Aug 31 01:05:38 tLatch dsc_I_trcInfo err = 75 poserr = 108 ticks Aug 31 01:05:47 tLatch dsc_I_trcInfo alt fiducial 60.03 deg Aug 31 01:05:47 tLatch dsc_I_trcInfo err = 166 poserr = 157 ticks Aug 31 01:06:00 tLatch dsc_I_trcInfo alt fiducial 75.15 deg Aug 31 01:06:00 tLatch dsc_I_trcInfo err = 173 poserr = 134 ticks Slew 8: Slewed to 30 alt, no axis init. Aug 31 01:06:18 tLatch dsc_I_trcInfo Applying correction -134 to altitude Aug 31 01:06:27 tLatch dsc_I_trcInfo alt fiducial 75.15 deg Aug 31 01:06:27 tLatch dsc_I_trcInfo err = -43 poserr = -43 ticks Aug 31 01:06:40 tLatch dsc_I_trcInfo alt fiducial 60.03 deg Aug 31 01:06:40 tLatch dsc_I_trcInfo err = -74 poserr = -51 ticks Aug 31 01:06:49 tLatch dsc_I_trcInfo alt fiducial 45.79 deg Aug 31 01:06:49 tLatch dsc_I_trcInfo err = -31 poserr = -57 ticks