Subject: 2.5m obslog 20130911 (MJD 56547) From: kpan@apo.nmsu.edu Date: Thu, 12 Sep 2013 11:34:51 +0000 (UTC) APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Wednesday September 11, 2013 (MJD 56547) ---- Observing Team ---- Audrey Oravetz Kaike Pan ---- Observing Plan ---- 11 Sep 2013 56547.0 0.47 02:23 11:37 18:45 04:00 APOGEE until 05:34 (3.5 h), then BOSS (6.0 h) ---- Observing Summary ---- The night was lost to the bad weather. We never get a chance to open. Note to engineers and developers: 1. We had a serious on SP1 low pressure at 03:05Z (see log for details). 2. 04:58Z we had a warning on SP2 ionpumpLatched. Warn boss.SP2BlueIonPumpLatched Reported by camCheck. Warn boss.SP2BlueIonPump Reported by camCheck. 3. 25m weather station reported incorrect information at 07:25Z, 10-20 minutes later it functions correctly. ---- Observing Log ---- Afternoon: ========== Checked actors, gathered mirror numbers, took guider dark, started APOGEE cals and BOSS collimation: motorPosition sp1: 23169, 22859, 22715; sp2: 25629, 25220, 26118; ---------- Median spectrographs temperatures: Tsp1= 14.2, Tsp2= 13.4; Outside air temperature= 12.0; COLLIMATE: Camera b1 appears to be IN-FOCUS (|mean| 0.15 pix) COLLIMATE: Predict blue camera ring movement of 3.8 degrees for spectro-2 COLLIMATE: Camera r1 appears to be IN-FOCUS (|mean| < 0.15 pix) COLLIMATE: Predict (red) piston movement of -128 steps for spectro-1 COLLIMATE: Camera r2 appears to be IN-FOCUS (|mean| < 0.15 pix) COLLIMATE: Predict (red) piston movement of -85 steps for spectro-2 motorPosition sp1: 27609, 27300, 27155; sp2: 26526, 26115, 27015; ---------- Median spectrographs temperatures: Tsp1= 14.2, Tsp2= 13.4; Outside air temperature= 11.8; Delayed ventilating due to lots of rain and humidity. Night: ==== 02:10Z: Rain, rain, rain ... 03:05Z: we got serious alert: Serious boss.SP1LN2Fill Reported by camCheck warning from STUI log: 03:05:05 .boss 57989 boss w SP1LN2Fill=FAULT!!! 03:05:05 .boss 57989 boss w camCheck=SP1LN2Fill 03:05:05 .alerts 0 alerts w alert=boss.SP1LN2Fill,serious,"Reported by camCheck",enabled,noack,"" 03:10:06 .alerts 0 alerts w alert=boss.SP1LN2Fill,serious,"Reported by camCheck",enabled,noack,"" 03:15:07 .alerts 0 alerts w text="sent MAIL SERIOUS boss.SP1LN2Fill == Reported by camCheck" We went down to the enclosure, and found that the primary fill for SP2 was completed, but the fill for SP1 was still in progress. The LN2 pressure read 10 psi on sp2, 3 psi on sp1. We forced another primary fill with "startfillseq", one can tell that the purge (out-gassing) on SP2 was much more powerful than on SP1. SP2 fill was completed very soon, and took about 4 minutes for SP2 to stop (not sure if the fill is completed due to the low pressure). Then I did another "startfillseq", then check the ln2status to confirm that the fill was successful. We monitor the pressure, and found that SP1 more than 30 minutes for the pressure back to 9 PSI. We don't know what caused the low pressure on SP1 low little dewar. I checked and confirm that the secondary filled was completed at 01:25Z (1.5 hours before the serious alter), so 10L dewar should have enough N2 in it. We also noticed that the valve of 180L was frozen. Which this be a factor? 04:58Z we had a warning on SP2 ionpumpLatched. Warn boss.SP2BlueIonPumpLatched Reported by camCheck Warn boss.SP2BlueIonPump Reported by camCheck "boss ackErrors" was issued. The warning did not come back. 07:25Z: we notice that 25m weather station reported incorrect information. 10 minutes later it functions correctly. According to Audrey, it have being done this during past several nights. 11:30Z call it the night. ---- Telescope Status ---- No Started ventilation Never encl25m : open encl25m : closed No interlocks bypassed Status at: 11:40Z Telescope stowed at: 121.0, 30.0, 0.0 mount Instrument mounted: cartridge = 11 Counterweights at: 485 LN2 autofill systems: Connected and turned on 180L LN2 dewar scales: SP1 183 lbs, 19 psi SP2 169 lbs, 21 psi ---- Software Used ---- ----STUI software: STUI: 1.3 2013-09-05 alerts: v1_3_0 apo: v1_8 boss: v2_5_14 boss.daq: 1.3.2 boss.specMech: 3.0.4 gcamera: v1_3_4 guider: v1_5_5 hub: Tag: sdss3_v1_2_0 mcp: NOSVN mcp.plc: 29 mcp.azFiducialVersion: v1_110 mcp.altFiducialVersion: v1_110 mcp.rotFiducialVersion: v1_110 platedb: v1_1_0 sop: v1_3_1 sos: v1_2_0 sos.idlspec2d: v5_6_7a tcc: 2.14.0 apogee: -not availble- apogeecal: -not availble- apogeeql: v1_5_3 -----Other software sdssProcedure(sdss3): v3_06 APO-local scripts : v4_4 ---- Mirror Numbers ---- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A: 15.014 15.016 Axial B: 16.007 15.993 Axial C: 15.529 15.529 Trans D: 10.417 10.41 Lateral E: 10.6299 10.6045 Lateral F: 12.2682 12.2555 GALILS Commanded: 11300 -650 5500 21900 13500 13050 Actual: 11300 -650 5500 21900 13500 13050 SETMIR VALUES PrimDesOrient: 0.00 0.00 0.00 612.35 1500.90 PrimOrient: 0.00 0.00 0.00 612.07 1500.38 SECONDARY: ---------- Focus: 0.00 Air temp: 11.8 Altitude: 29.5 MIGS TONIGHT NOMINAL Axial A: -7.052 -7.063 Axial B: -7.047 -7.043 Axial C: -7.094 -7.085 Trans D: -0.067 -0.06 GALILS Commanded: 1575950 1583000 1592550 -8800 -3350 Actual: 1575958 1582956 1592613 -8800 -3350 SETMIR VALUES SecDesOrient: 1257.00 -4.10 3.00 -100.00 143.14 SecOrient: 1257.01 -4.11 3.01 -100.03 143.63