APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Friday August 30, 2002 (MJD 52517) ---=== OBSERVING TEAM ===--- Mike Harvanek (APO) Pete Newman (APO) Jurek Krzesinski (APO; swing) ---=== OBSERVING PLAN ===--- Science! ---=== OBSERVING SUMMARY ===--- Night lost to clouds. Problem mounting cartridge 6. CCD56 bias levels were out of tolerance again tonight. Closed PR 3847 (logTool calls logViewer with wrong parameters). ---=== OBSERVING LOG ===--- Clouds, rain and high humidity kept us closed all night. There was a problem mounting cartridge 6 this afternoon apparently due to an off center slit head. A PR (4192) was filed. See the Problems section for details. A problem reported last night (PR 4185) occurred again during this afternoon's checkout. While running a dog house bias (run 3316), watcher reported aline biasL and biasR errors from astroLine for CCD 56. We closed PR 3847 (logTool calls logViewer with wrong parameters) after we received corrected testing procedures from Eric N. ---=== IMAGING RUN SUMMARY ===--- Run Time Stripe Lambda Last Flavor Comments Start End Begin End Frame ------------------------------------------------------------------------- 3316 01:50Z 02:17Z 100 O 75.86 82.63 59 ignore ---=== 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 ===--- UT Exp Time flavor comment (S/N)^2 totals ========================================== b1 r1 b2 r2 ----- sequence 16068, plate -9999 ------- 01:06 16068 0.0 bias 01:35 16069 0.0 bias ---=== 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: none Stays: none ---=== FOCUS LOG ===--- setmir piston Temp Wind Time Inst scale M1 M2 Foc Az Alt (C) MPH Dir filt fwhm ------------------------------------------------------------------------------ ---=== WEATHER LOG ===--- Wind Time Temp F Dewp F MPH Direction Dust DIMM Sky 01:38Z 60 41 5 85 (E) 818 - mcl 02:10Z 54 45 22 55 (NE) 1170 - mcl 02:42Z 53 45 23 67 (ENE) 556 - mcl 03:14Z 54 43 13 82 (E) 391 - mcl 03:47Z 54 43 25 60 (ENE) 471 - mcl 04:19Z 55 41 12 77 (ENE) 263 - mcl 04:51Z 56 41 21 70 (ENE) 333 - mcl 05:23Z 57 39 14 76 (ENE) 429 - mcl 05:55Z 59 38 9 68 (ENE) 465 - mcl 06:28Z 60 37 7 65 (ENE) 378 - pcl 07:00Z 59 37 10 59 (ENE) 379 - pcl 07:32Z 59 38 6 87 (E) 472 - mcl 08:04Z 60 38 0 138 (SE) 516 - mcl 08:36Z 59 39 4 351 (NNW) 780 - mcl 09:09Z 57 39 5 274 (W) 627 - mcl 09:41Z 55 43 6 136 (SE) 720 - mcl 10:13Z 54 43 1 145 (SE) 668 - mcl 10:45Z 54 43 7 173 (S) 638 - mcl ---=== TELESCOPE STATUS ===--- Never opened. Telescope stowed at 30 degrees with cartridge 6 (plate 1054) mounted. Counterweights at 280. Spectro auto-fill connected. Imager dewar 10:57Z 120 lb Spectro dewar 10:57Z 84 lb Alt, az slip detection interlocks bypassed. ---=== SOFTWARE USED ===--- IOP/SOP: v3_82_7 Watcher: v2_19_0 MCP: v5_13_4 TPM: tpm_v2_16_0 AstroDa: v14_47 TCC: 2.6.5 sdssProcedures: v1_51 tccMon : v1_9 SoS: v4_9_10 hoggPT: v1_5_8 plate-mapper: v4_1_0 ---=== MIRROR NUMBERS ===--- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A 0.0880 0.0890 Axial B 0.8050 0.8040 Axial C 0.0810 0.0790 Trans D -1.5170 -1.5180 Lateral E 1.8270 1.8220 Lateral F 0.0000 0.0000 GALILS Commanded: 5400. -3700. 900. -200. 31550. 30650. Actual: 5377. -3699. 923. -208. 31535. 30647. SETMIR VALUES PriDesOrient: 0.00 -11.80 23.00 1256.90 642.10 PriOrient: 0.00 -12.16 22.81 1257.41 642.19 SECONDARY: ---------- Focus: 0.00 Air Temp.: 13.1 Alt.: 30.006771 MIGS TONIGHT NOMINAL Axial A 1.4620 1.4640 Axial B 1.1500 1.1520 Axial C 1.0750 1.0770 Trans D -0.7180 -0.7160 GALILS Commanded: 1661551. 1539196. 1550276. -4550. -1550. Actual: 1661550. 1539248. 1550273. -4547. -1562. SETMIR VALUES SecDesOrient: 1257.00 10.00 -40.00 -100.00 64.19 SecOrient: 1257.02 10.00 -39.99 -100.17 64.09 ---=== PROBLEMS IN DETAIL ===--- Cartridge 6 north slit-head was not centered and struck spectro aperture: ------------------------------------------------------------------------- When mounting cartridge 6, there was a clunk as the slit heads started to enter their apertures in the bottom of the spectrographs. We had checked the slithead doors were open. We lowered and re-raised the cartridge again and determined that the north slithead was striking its aperture in the spectrograph body. We checked the Lindy cart was properly engaged with the locator lock on the floor. We then had Jon Brinkmann look at the problem, as he was still on site. He determined that the slit head was not properly centered on its spring mounts in the east-west direction, so it was the west side of the slithead that was striking the aperture. He jiggled the slithead some and we tried again - this time it went into the aperture smoothly. We do not know if this indicates that the slithead was jammed off-center, or if its centering needs adjustment. If the latter, we suggest that the other cartridges also be checked and adjusted. CCD56 bias levels out of tolerance: ----------------------------------- As reported last night in PR 4185, CCD 56 bias levels were again out of tolerance this afternoon. During a dog house bias (run 3316), watcher reported aline biasL and biasR errors from astroLine for CCD 56.