APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Tuesday April 19, 2005 (MJD 53480) ---=== OBSERVING TEAM ===--- John Barentine The ET Team: Jian Ge (UF) Julian Van Eyken (UF) ---=== OBSERVING PLAN ===--- ET Science! ---=== OBSERVING SUMMARY ===--- Obtained data on all four "regular" ET plates (8011-8014) as well as the "mixed" SDSS/ET plate (8015). Also took spectra of the stars on 8015 with the SDSS spectrographs. Dust was again moderately high (2500-3000) tonight. C02 cleaning of the mirrors may be warranted. ---=== OBSERVING LOG ===--- Afternoon --------- No problems. Ambient/predicted low temperatures were similar to last night, so we did not check spectro focus. Night ----- Opened at 02:05Z. 02:43Z Cart 5 Plate 8012. Guide stars on gotoField with last night's calib offsets still in place. Focus tonight was much closer to 0 to start, but we were far from thermal equilibrium and I had to do two focus loops (neither of which had a global minimum) to guess at best focus. That number was around -100 but by the end of observing this plate it had wandered to +100. Disabled guide fibers 8 and 11 like last night as they have no guide stars. We spent a total of 1 1/2 hours on this field. 04:50Z Cart 6 Plate 8011. Guide stars on gotoField with the previous plate's offsets. No significant focus change was required. Best focus is now up to about 200. Exposed here for a total of 1 1/2 hours. 06:45Z Cart 8 Plate 8013. No GSOGTF with the last plate's offsets. Cleared the offsets and tried again with no luck. fk5InFiber number 10 didn't even give a glow in 30 seconds of exposure time. Next to try was spiral pattern for 3 laps with 5 arcsec offsets. Finally landed the fk5 star with total offsets of A=-10 and D=+15. Got exposures here for a total of 45 minutes. 07:43Z Cart 4 Plate 8014. Again no GSOGTF with previous plate's offsets. No luck clearing offsets, or with an fk5InFiber number 10. Took another run of spiralPattern, on which we found the star at A=-18 and D=-16. Focus is now up to about 600. We stuck around here exposing for nearly two hours. 09:49Z Cart 9 Plate 8015 (mixed SDSS/ET). Yet again, no GSOGTF. Tried the same procedures to locate guide stars as on the previous two plates (up to and including spiralPattern) without luck. spiralPattern kept quitting after about 7 images with the complaint that the guider image "didn't arrive" as expected. Finally after struggling with it for nearly 15 minutes, we got a glow in fiber 10 at A=-10, D=-10. Additional offsets of A=-6 and D=+3 centered it. The ET crew commenced to taking data with their instrument and I began a series of 60 to 90 second exposured with the SDSS spectrographs. We continued working until the sky background in the guide fibers interfered with guiding. Closed up at 12:25Z. endNight was run on the cloudy night tapes and rejoiced. ---=== IMAGING RUN SUMMARY ===--- Run Time Stripe Lambda Last Flavor Comments Start End Begin End Frame ------------------------------------------------------------------------- ---=== IMAGING RUN DETAILS ===--- ---=== SKIPPY RESULTS ===--- Run Frame nFrames stars muErr muRms nuErr nuRms rot az el --------------------------------------------------------------------------- ---=== LTMATCH RESULTS ===--- Run Field nFields alt az nGood rowMean rowSig colMean colSig rot ------------------------------------------------------------------------ ---=== SPECTROSCOPY DATA SUMMARY ===--- Summary Checked (y/n): yes QA Procedures Done (y/n): n/a UT Exp Time flavor comment (S/N)^2 totals ========================================== b1 r1 b2 r2 ----- sequence 32140, plate -9999 ------- 23:59 32140 0.0 bias 00:02 32141 0.0 bias ----- sequence 32142, plate 2012 ------- 00:23 32142 10.0 flat 00:25 32143 2.0 arc ----- sequence 32144, plate 8015 ------- 10:37 32144 60.1 target 10:42 32145 60.1 target 10:47 32146 90.1 target 10:55 32147 60.1 target 10:59 32148 75.1 target 11:08 32149 60.1 target 11:14 32150 60.1 target 11:18 32151 60.1 target 11:21 32152 60.1 target 11:25 32153 60.1 target 11:29 32154 60.1 target 11:38 32155 60.1 target 11:45 32156 60.1 target 11:51 32157 60.1 target 11:55 32158 60.1 target 11:59 32159 60.1 target 12:02 32160 10.0 flat 12:05 32161 2.0 arc ---=== TELESCOPE OFFSETS AND SCALE I ===--- Time Instrument Az Alt Rot Scale pos offset pos offset pos offset ------------------------------------------------------------------------------ 03:33Z 5 8012 279.92 0.0043 70.48 0.0053 110.87 -0.0134 1.000200 04:58Z 6 8011 206.26 0.0029 63.51 0.0061 40.57 0.0106 1.000200 08:09Z 4 8014 164.05 0.0034 52.36 0.0068 -36.86 -0.0075 1.000280 10:38Z 9 8015 126.38 -0.0011 65.12 0.0062 -71.75 0.0063 1.000460 ---=== 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 ------------------------------------------------------------------------------ 03:33Z 5 8012 1.00020 -1974 -579 -75 280 70.4 9.4 17 257 -- 1.3 04:57Z 6 8011 1.00020 -1974 -366 125 206 63.6 9.3 15 253 -- 1.2 08:08Z 4 8014 1.00028 -2764 -590 525 164 52.3 6.6 12 266 -- 1.5 10:38Z 9 8015 1.00046 -4542 -2019 600 126 65.2 5.1 15 270 -- 2.2 ---=== WEATHER LOG ===--- Wind Time Temp F Dewp F MPH Direction Dust DIMM Sky 23:53Z 54 14 18 265 (W) 2836 - clear 00:26Z 54 12 22 242 (WSW) 2732 - 00:58Z 54 12 18 251 (WSW) 2570 - 01:30Z 50 8 20 265 (W) 2349 - 02:02Z 50 8 22 235 (SW) 2230 - 02:34Z 49 6 13 253 (WSW) 2293 - 03:07Z 49 5 18 237 (WSW) 2316 - 03:39Z 49 6 15 262 (W) 2265 - 04:11Z 49 6 12 267 (W) 2360 - 04:43Z 48 5 18 257 (WSW) 2217 - 05:15Z 48 5 17 244 (WSW) 2116 - 05:47Z 48 3 16 265 (W) 2212 - 06:20Z 47 5 18 270 (W) 2229 - 06:52Z 46 4 7 291 (WNW) 2545 - 07:24Z 45 4 11 258 (WSW) 2729 - 07:55Z 44 5 18 270 (W) 3462 - 08:28Z 43 5 12 257 (WSW) 2974 - 08:58Z 43 6 12 266 (W) 3007 - 09:29Z 42 5 14 266 (W) 2868 - 10:01Z 42 4 17 266 (W) 2642 - 10:33Z 41 3 14 282 (WNW) 2582 - 11:04Z 40 2 13 266 (W) 2847 - 11:34Z 40 7 18 269 (W) 2456 - 12:05Z 40 7 13 267 (W) 2401 - 12:38Z 39 8 11 266 (W) 2417 - ---=== TELESCOPE STATUS ===--- 01:15Z Louvers opened 02:05Z Enclosure off 12:25Z Enclosure on, spectro dewars force-filled Telescope parked at 121,30 with Cart 9 (Plate 8015) mounted Spectro autofill reconnected Counterweights at 270 No interlocks bypassed Dewar weights at 12:40Z Imager: 172lbs 21psi Spectro: 61lbs 16psi ---=== SOFTWARE USED ===--- IOP/SOP: v3_143_1 Watcher: v2_30_0 MCP: v5_26_0 TPM: tpm_v2_47_0 AstroDa: v14_47 TCC: TCC 2.7.2.1 August 6 2004 sdssProcedures: v1_99 SoS: v4_10_7 hoggPT: v1_6_9 plate-mapper: v4_3_1 ---=== MIRROR NUMBERS ===--- PRIMARY: -------- Scale: 1.000340 MIGS TONIGHT NOMINAL Axial A -2.8130 0.5770 Axial B -2.7810 0.5880 Axial C -2.4260 0.9460 Trans D -8.1510 -8.1960 Lateral E 10.0711 10.0330 Lateral F 11.6205 11.5951 GALILS Commanded: 57000. 50750. 55550. -13300. -7350. -7400. Actual: 57000. 50750. 55550. -13300. -7350. -7400. SETMIR VALUES PriDesOrient: -3356.22 4.57 1.18 64.25 -249.76 PriOrient: -3356.48 4.30 1.32 63.98 -249.88 SECONDARY: ---------- Focus: 400.00 Air Temp.: 13.2 Alt.: 29.999495 MIGS TONIGHT NOMINAL Axial A 3.9440 1.5680 Axial B 3.4260 1.0460 Axial C 3.5400 1.1590 Trans D -0.2260 -0.2020 GALILS Commanded: -1372626. -1388544. -1467334. -14700. -10450. Actual: -1377900. -1392100. -1468500. -14700. -10450. SETMIR VALUES SecDesOrient: -1121.95 27.97 -10.00 -90.00 257.89 SecOrient: -1119.30 28.98 -10.73 -90.24 257.39 ---=== PROBLEMS IN DETAIL ===--- specMech numbers: sp1 spMechVersion v2_5_0 Bootup 719771169 SpectroID 1 SlitID 33 Air On Shutter_open_sensor Off Shutter_closed_sensor On Left_open_sensor Off Left_closed_sensor On Right_open_sensor Off Right_closed_sensor On Coll_motor_A 7300 Coll_motor_B 7293 Coll_motor_C 8676 Requested_exp.time 0.0 Exp_time_left 0.0 Last_exp.time 2.1 Exp_state None Shutter_open_transit .73 Shutter_close_transit .56 Coll_motor_A_status 0x85 Coll_motor_B_status 0x84 Coll_motor_C_status 0x85 sp2 spMechVersion v2_5_0 Bootup 719771169 SpectroID 2 SlitID 1 Air On Shutter_open_sensor Off Shutter_closed_sensor On Left_open_sensor Off Left_closed_sensor On Right_open_sensor Off Right_closed_sensor On Coll_motor_A 10302 Coll_motor_B 8887 Coll_motor_C 7599 Requested_exp.time 0.0 Exp_time_left 0.0 Last_exp.time 2.1 Exp_state None Shutter_open_transit .72 Shutter_close_transit .62 Coll_motor_A_status 0x84 Coll_motor_B_status 0x84 Coll_motor_C_status 0x84