APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Monday March 27, 2006 (MJD 53822) ---=== OBSERVING TEAM ===--- Swing: John Barentine Night: Jurek Krzesinksi Viktor Malanushenko Visitor: Andreas Kelz (AIP Potsdam) ---=== OBSERVING PLAN ===--- Science! ---=== OBSERVING SUMMARY ===--- High dust and overcast sky, high humidity, NO observations. ---=== OBSERVING LOG ===--- Afternoon --------- There's a problem with the scale underneath the spectro (180 l) dewar -- it's reading weight "backward"; that is, adding weight to the scale decreases the reading on the LCD display and also in TPM. Without a dewar on the scale, the weight shown is 263 lbs. So I was a little surprised when I went to change the dewar weighing "87" lbs, that on removing the dewar from the scale the 'weight' went UP. There are actually something like 180 lbs in the dewar as of 00:00Z so I am going to leave it as is; the weight shown on the display and in TPM should thus come up during the night. No other problems during checkout. Spectro focus numbers are in the Problems section; I made an adjustment to the rotation of the blue camera focus ring on sp1 that solved the focus problem from last night. Night ----- We never opened enclosure: dust over limits; in addition - from midnight and up to the morning - clouds. No observations! endNight is finished OK. ---=== 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): QA Procedures Done (y/n): UT Exp Time flavor comment (S/N)^2 totals ========================================== b1 r1 b2 r2 ----- sequence 38322, plate -9999 ------- 22:22 38322 0.0 bias 22:28 38323 0.0 bias ----- sequence 38324, plate 2240 ------- 22:44 38324 10.0 flat 22:46 38325 2.0 arc 22:49 38326 2.1 arc 22:51 38327 2.1 arc 23:16 38328 2.1 arc 23:19 38329 2.1 arc ---=== TELESCOPE OFFSETS AND SCALE I ===--- Time Instrument Az Alt Rot Scale pos offset pos offset pos offset ------------------------------------------------------------------------------ ---=== 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 ------------------------------------------------------------------------------ 00:20Z 7 2240 1.00000 0 1229 0 121 30.4 6.8 0 184 ---=== WEATHER LOG ===--- Wind Time Temp F Dewp F MPH Direction Dust DIMM Sky 21:00Z 45 17 16 177 (S) 1283 - 21:32Z 46 16 8 181 (S) 1300 - 22:04Z 47 16 5 280 (W) 1382 - 22:35Z 47 17 7 266 (W) 1317 - 23:05Z 45 15 6 223 (SW) 1505 - 23:35Z 45 14 7 232 (SW) 1448 - 00:07Z 44 15 5 206 (SSW) 1394 - 02:01Z 36 20 12 89 (E) 2582 - 02:33Z 36 20 12 109 (ESE) 2880 - 03:06Z 35 20 7 89 (E) 3091 - 03:38Z 35 20 9 105 (ESE) 3315 - 04:10Z 36 20 7 86 (E) 3854 - 04:42Z 36 20 1 113 (ESE) 3707 - 05:14Z 34 21 6 91 (E) 4373 - 05:46Z 38 21 1 156 (SSE) 3812 - 06:16Z 37 22 9 173 (S) 2990 - 06:47Z 40 22 14 181 (S) 2444 - 07:17Z 37 26 19 163 (SSE) 2860 - 07:47Z 37 29 16 157 (SSE) 2587 - 08:17Z 36 31 15 144 (SE) 2538 - 08:47Z 36 31 13 150 (SSE) 2348 - 09:18Z 37 30 14 148 (SSE) 2174 - 09:48Z 37 30 13 156 (SSE) 2215 - 10:20Z 37 30 12 170 (S) 2024 - 10:50Z 38 30 12 177 (S) 2004 - 11:21Z 38 30 11 179 (S) 1969 - ---=== TELESCOPE STATUS ===--- 11:31Z telescope put to bed. ---=== SOFTWARE USED ===--- IOP/SOP: v4_19_0 Watcher: v2_31_0 MCP: v6_1_3 TPM: tpm_v3_3_0 AstroDa: v15_11 TCC: TCC 2.7.2.1 August 6 2004 sdssProcedures: v2_13 SoS: v5_1_0 hoggPT: v1_6_9 plate-mapper: v4_3_1 ---=== MIRROR NUMBERS ===--- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A -5.8540 -5.8440 Axial B -5.6680 -5.6770 Axial C 0.9370 0.9420 Trans D -10.0030 -9.9940 Lateral E 10.3886 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.: 7.8 Alt.: 89.999722 MIGS TONIGHT NOMINAL Axial A 1.5400 1.5420 Axial B 1.0570 1.0470 Axial C 1.1710 1.1650 Trans D -0.1260 -0.1240 GALILS Commanded: 1593394. 1603567. 1554270. -6800. -5900. Actual: 1593447. 1603642. 1554316. -6820. -5882. SETMIR VALUES SecDesOrient: 1257.00 15.87 0.00 -50.00 136.76 SecOrient: 1256.95 15.86 -0.01 -49.56 136.74 ---=== PROBLEMS IN DETAIL ===--- Spectro Focus ------------- Last night the observers noted that they were unable to bring b1 sufficiently into focus by changing the motor positions to put r1 slightly *out* of focus. Odds are that requires moving the camera ring on sp1 according to the recommendations of goSpecFocus and collimate. Temperatures at time of focus check: tpm_TM_PMSSAvg 6.28929 tpm_TM_TelairAvg.VALA 6.205 Last night's temperatures were around 5 deg C, and tonight's forecast calls for similar temps. I set the focus for this value. Motor positions before focus: sp1 Coll_motor_A 10371 Coll_motor_B 10389 Coll_motor_C 10355 sp2 Coll_motor_A -4612 Coll_motor_B -7941 Coll_motor_C -7230 postCalib looks good; all XSIGMA and WSIGMA are in black. First attempt at goSpecFocus: sp1 red l-r = -0.002 pixels, tolerance = 0.15 pixels, focused sp2 red l-r = -0.165 pixels , tolerance = 0.15 pixels, not focused yet Predict a movement of 1510 steps for sp2 red sp1 blue l-r = 0.227 pixels , tolerance = 0.15 pixels, not focused yet Predict a movement of -8 steps for sp1 blue If red is in focus then you need to rotate blue camera ring by -8 degrees sp2 blue l-r = 0.146 pixels, tolerance = 0.15 pixels, focused collimate gave: COLLIMATE: Mean offset = 0.21 pix COLLIMATE: Camera b1 appears to be OUT-OF-FOCUS (|mean| > 0.15 pix) COLLIMATE: Predict blue camera ring movement of -7.6 degrees for spectro-1 COLLIMATE: Mean offset = 0.20 pix COLLIMATE: Camera b2 appears to be OUT-OF-FOCUS (|mean| > 0.15 pix) COLLIMATE: Predict blue camera ring movement of -7.1 degrees for spectro-2 COLLIMATE: Mean offset = -0.02 pix COLLIMATE: Camera r1 appears to be IN-FOCUS (|mean| < 0.15 pix) COLLIMATE: Predict (red) piston movement of 195 steps for spectro-1 COLLIMATE: Mean offset = -0.19 pix COLLIMATE: Camera r2 appears to be OUT-OF-FOCUS (|mean| > 0.15 pix) COLLIMATE: Predict (red) piston movement of 1771 steps for spectro-2 I made the recommended mechPiston move on sp2 to first bring the camera into focus, then made the recommended rotation of the blue camera ring on sp1 (~-7.5 degrees, from the nominal 346.5 to 339 degrees). Second iteration of goSpecFocus: sp1 red l-r = 0.017 pixels, tolerance = 0.15 pixels, focused sp2 red l-r = -0.059 pixels, tolerance = 0.15 pixels, focused sp1 blue l-r = 0.015 pixels, tolerance = 0.15 pixels, focused sp2 blue l-r = 0.027 pixels, tolerance = 0.15 pixels, focused and collimate: COLLIMATE: Mean offset = -0.01 pix COLLIMATE: Camera b1 appears to be IN-FOCUS (|mean| < 0.15 pix) COLLIMATE: Predict blue camera ring movement of 0.2 degrees for spectro-1 COLLIMATE: Mean offset = 0.07 pix COLLIMATE: Camera b2 appears to be IN-FOCUS (|mean| < 0.15 pix) COLLIMATE: Predict blue camera ring movement of -2.7 degrees for spectro-2 COLLIMATE: Mean offset = -0.04 pix COLLIMATE: Camera r1 appears to be IN-FOCUS (|mean| < 0.15 pix) COLLIMATE: Predict (red) piston movement of 404 steps for spectro-1 COLLIMATE: Mean offset = -0.09 pix COLLIMATE: Camera r2 appears to be IN-FOCUS (|mean| < 0.15 pix) COLLIMATE: Predict (red) piston movement of 837 steps for spectro-2 Hooray!