APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Saturday January 5, 2002 (MJD 52280) ---=== OBSERVING TEAM ===--- Steph Snedden Scot Kleinman Atsuko Nitta Kleinman -Visitor and 3.5m Traitor Sir Larry Carey (UW) - Visitor Jon Brinkmann - debugging Secondary Migs ---=== OBSERVING PLAN ===--- Science! ---=== OBSERVING SUMMARY ===--- Here's what went right tonight: We opened and closed the building successfully. Here's what didn't: Secondary actuator A was very naughty. calcStripeParams lost its ability to get the corrrect time, also screwing up scanStripe. (This is SERIOUS.) Clouds came in once we started imaging. Scot's glove got torn. We could find no stars with cartridge 6 plate 769. We got bitten again by the de-grabbing instrument bug. A waiting LN2 dewar was in the way of the doghouse. The wind was too high, blowing around loose snow. We also noticed the imager cart bladders seemed to be losing air faster than usual (~20lbs low at imager mount then ~10low again at dismount - on two sides). ---=== OBSERVING LOG ===--- While homing the secondary at the start of the night (we suspected the colder temperatures than we've had recently might result in Mig-A problems), we indeed did get problems with the secondary A actuator. We found Larryeating a bowl of green beans and left messages for JB who was already on his way out here. At 01:26UT, we homed the secondary again and Larry watched the oscilloscope that was hooked up at the telescope. During this homing, there were strange problems - it looked to us (using the TPM display of the Galils) that none of the axes got to their commanded positions, yet when the TCC home command returned, it complained only about Mig A. An RP command to the secondary Galil reported all three actuator were at the commanded positions although A's command position was VERY different from the other 2. The Mitsutoyo readings were about 0.5 for A and ~10.0 for B and C. Around this time, JB came in and helped diagnose things. Since the Northern strips are not up until 05:00UT, we decided to allow a couple hours for diagnosis. We moved the telescope to 6deg alt and tried a home again. This time, MIG A moved fine (but the TCC said B&C didn't get there. A new home was issued and B&C got to their RLIMS, but A did not. A third home and all three found the limits). We went back to 70deg alt and moved away from home to find things now behaving. A home at 70 worked well, too. We then slewed around a bit in altitude with collimate on to see if things behaved- they did. The only (and last) thing left do was to let it sit and get cold again and see what happens. We waited 30 minutes and tried again. We started with small moves logged in directly ot the secondary Galil. We started with a +15000 count relative move (XQ#MOVEREL) and it looked like A was slow again. We continued with a -30000 count move. A continued to move slowly. We continued with a few relative moves in opposite directions and each time MIG A was slow. We then moved back to 6 degrees to see if that would clear things up again. Here, we did a HOME and things failed yet again. So much for consistency. Larry and JB went down to the telescope to look at the voltages more closely while we homed again (slowly). They then went to get a heat gun to plug into the UPS (Hi, Mark) and heat the actuator A assembly up while we tried to move some more. It moved quickly this time! We re-homed the secondary at 70deg and started imaging. We decided to go to the high priority stripe, 33N and found some quirkiness with calcStripeParams and hence scanStripe (see Problems section below) which we managed to work through only to set our focus for the imager and find secondary actuator A not moving. Larry and JB went down to warm things up again so we could try to get it moving once more. They warmed it up and wrapped it in aluminum tape to get it to work again. Finally, (after several more attempts at scanStripe) we were on to stripe 33N, startLambda -47. Our focus required an additional offset of ~-250 from the previously-built formula (the needed offset was about -350 last month). Skippy reported acceptable results so good data start around frame 18, 05:18UT. Frame 30 is about the start of lambda=-43. Clouds came in shortly after we started and only got worse. We stoped the run at 05:49UT at frame 70 - and called it bad/ignore. We switched to spectroscopy, cart 7 plate 769 only to have Scot's glove torn by the stairs to the lower level and the secondary A actuator misbehave again. Larry and JB went back down to the telescope to work their warm magic again. They did and we re-homed the secondary at 70deg alt yet again. (That's YASH for short.) Larry called Russell and he (RO) suggested we telnet to the secondary Galil and do a MOFF=0 command which leaves the motors always on in an attempt to keep them warm and fuzzy. We will endeavour to remember to do a MOFF=1 comand at the end of the night. We had a windbaffle hit during the gotoField, but this probably has something to do with the dog paddle hitting the imager dewar in waiting. We found noStars during either the gotoField or fk5InFiber. A single-lap spiralPatern failed to find our fk5 star as did a 15" E (worth a try) offset. We verified the plateMap was loaded correctly (well, that -latest gets the most recent version). A two lap spiralPattern with larger offsets and longer exposure times still failed to find any stars. We next decided to unmount and remount the cartridge. (Yes, we could give up, but the rest of the night so far was shot already, so why not try to figure out what is going on?). We also re-verified it was the right plate. This gotoField also found noStars as did the fk5InFiber. We tried this with and without offsets - to no avail. Off to cart 2 plate 768. No stars on gotoField, but an fk5 star was on the edge of the fiber using the offsets from the last time we spectroed. The goStare failed once we finally found stars (actually the preCalib failed) because saoImage decided to ungrab the instruments for us. We fixed this, only to find actuator A not being nice again. We were trying to nudge it back when Atsuko came in and noted that the winds were too high, so downtrodden, we decided to close. (So much for the MOFF command, which we unMOFFed.) We did not re-open the rest of the night. MCP v5_8_7 seemed to be working, so we declared it current. We did not ship our imaging data, since nothing but the bias was any good. ---=== IMAGING RUN SUMMARY ===--- Run Stripe Flavor Lambda Last Begin End Frame Comments ------------------------------------------------------------------ 2846 100 O ignore 173.44 173.44 42 2847 100 O bias 174.42 174.42 58 good on-telescope bias 2848 33 N ignore -45.93 -44.62 22 2849 33 N ignore -46.38 -45.75 18 2850 33 N ignore -46.37 -36.74 78 ---=== IMAGING RUN DETAILS ===--- ---=== SKIPPY RESULTS ===--- Run Frame nFrames stars muErr muRms nuErr nuRms rot --------------------------------------------------------------- 2850 12 4 105 -1.800 0.407 6.500 0.405 -0.00645 2850 19 4 113 -2.600 0.165 7.000 0.232 -0.00681 2850 54 4 71 -2.700 0.145 8.000 0.178 -0.00722 2850 66 4 58 -3.900 0.158 8.300 0.143 -0.00737 2850 66 4 58 -3.900 0.158 8.300 0.143 -0.00737 2850 66 4 58 -3.900 0.158 8.300 0.143 -0.00737 2850 66 4 58 -3.900 0.158 8.300 0.143 -0.00737 2850 66 4 58 -3.900 0.158 8.300 0.143 -0.00737 2850 66 4 58 -3.900 0.158 8.300 0.143 -0.00737 2850 66 4 58 -3.900 0.158 8.300 0.143 -0.00737 2850 66 4 58 -3.900 0.158 8.300 0.143 -0.00737 2850 66 4 58 -3.900 0.158 8.300 0.143 -0.00737 2850 66 4 58 -3.900 0.158 8.300 0.143 -0.00737 2850 66 4 58 -3.900 0.158 8.300 0.143 -0.00737 2850 66 4 58 -3.900 0.158 8.300 0.143 -0.00737 2850 66 4 58 -3.900 0.158 8.300 0.143 -0.00737 2850 66 4 58 -3.900 0.158 8.300 0.143 -0.00737 2850 66 4 58 -3.900 0.158 8.300 0.143 -0.00737 2850 66 4 58 -3.900 0.158 8.300 0.143 -0.00737 2850 66 4 58 -3.900 0.158 8.300 0.143 -0.00737 ---=== LTMATCH RESULTS ===--- Run Field nFields nGood rowMean rowSig colMean colSig rot --------------------------------------------------------------- 2850 29 1 14 -1.056 1.076 4.551 4.558 -0.01530 2850 29 1 31 -1.394 1.410 4.537 4.543 -0.01525 2850 29 1 18 -1.730 1.750 4.314 4.320 -0.01450 2850 29 1 26 -2.099 2.113 4.346 4.353 -0.01461 2850 29 1 19 -2.333 2.350 4.266 4.275 -0.01434 2850 59 1 19 -1.246 1.257 3.674 3.677 -0.01235 2850 59 1 22 -1.506 1.512 3.570 3.572 -0.01200 2850 59 1 17 -1.902 1.907 3.402 3.407 -0.01144 2850 59 1 14 -2.122 2.126 3.333 3.335 -0.01121 2850 59 1 11 -2.376 2.377 3.253 3.261 -0.01094 2850 59 1 19 -1.246 1.257 3.674 3.677 -0.01235 2850 59 1 22 -1.506 1.512 3.570 3.572 -0.01200 2850 59 1 17 -1.902 1.907 3.402 3.407 -0.01144 2850 59 1 14 -2.122 2.126 3.333 3.335 -0.01121 2850 59 1 11 -2.376 2.377 3.253 3.261 -0.01094 2850 59 1 19 -1.246 1.257 3.674 3.677 -0.01235 2850 59 1 22 -1.506 1.512 3.570 3.572 -0.01200 2850 59 1 17 -1.902 1.907 3.402 3.407 -0.01144 2850 59 1 14 -2.122 2.126 3.333 3.335 -0.01121 2850 59 1 11 -2.376 2.377 3.253 3.261 -0.01094 2850 59 1 19 -1.246 1.257 3.674 3.677 -0.01235 2850 59 1 22 -1.506 1.512 3.570 3.572 -0.01200 2850 59 1 17 -1.902 1.907 3.402 3.407 -0.01144 2850 59 1 14 -2.122 2.126 3.333 3.335 -0.01121 2850 59 1 11 -2.376 2.377 3.253 3.261 -0.01094 2850 59 1 19 -1.246 1.257 3.674 3.677 -0.01235 2850 59 1 22 -1.506 1.512 3.570 3.572 -0.01200 2850 59 1 17 -1.902 1.907 3.402 3.407 -0.01144 2850 59 1 14 -2.122 2.126 3.333 3.335 -0.01121 2850 59 1 11 -2.376 2.377 3.253 3.261 -0.01094 2850 59 1 19 -1.246 1.257 3.674 3.677 -0.01235 2850 59 1 22 -1.506 1.512 3.570 3.572 -0.01200 2850 59 1 17 -1.902 1.907 3.402 3.407 -0.01144 2850 59 1 14 -2.122 2.126 3.333 3.335 -0.01121 2850 59 1 11 -2.376 2.377 3.253 3.261 -0.01094 2850 59 1 19 -1.246 1.257 3.674 3.677 -0.01235 2850 59 1 22 -1.506 1.512 3.570 3.572 -0.01200 2850 59 1 17 -1.902 1.907 3.402 3.407 -0.01144 2850 59 1 14 -2.122 2.126 3.333 3.335 -0.01121 2850 59 1 11 -2.376 2.377 3.253 3.261 -0.01094 2850 59 1 19 -1.246 1.257 3.674 3.677 -0.01235 2850 59 1 22 -1.506 1.512 3.570 3.572 -0.01200 2850 59 1 17 -1.902 1.907 3.402 3.407 -0.01144 2850 59 1 14 -2.122 2.126 3.333 3.335 -0.01121 2850 59 1 11 -2.376 2.377 3.253 3.261 -0.01094 2850 59 1 19 -1.246 1.257 3.674 3.677 -0.01235 2850 59 1 22 -1.506 1.512 3.570 3.572 -0.01200 2850 59 1 17 -1.902 1.907 3.402 3.407 -0.01144 2850 59 1 14 -2.122 2.126 3.333 3.335 -0.01121 2850 59 1 11 -2.376 2.377 3.253 3.261 -0.01094 2850 59 1 19 -1.246 1.257 3.674 3.677 -0.01235 2850 59 1 22 -1.506 1.512 3.570 3.572 -0.01200 2850 59 1 17 -1.902 1.907 3.402 3.407 -0.01144 2850 59 1 14 -2.122 2.126 3.333 3.335 -0.01121 2850 59 1 11 -2.376 2.377 3.253 3.261 -0.01094 2850 59 1 19 -1.246 1.257 3.674 3.677 -0.01235 2850 59 1 22 -1.506 1.512 3.570 3.572 -0.01200 2850 59 1 17 -1.902 1.907 3.402 3.407 -0.01144 2850 59 1 14 -2.122 2.126 3.333 3.335 -0.01121 2850 59 1 11 -2.376 2.377 3.253 3.261 -0.01094 2850 59 1 19 -1.246 1.257 3.674 3.677 -0.01235 2850 59 1 22 -1.506 1.512 3.570 3.572 -0.01200 2850 59 1 17 -1.902 1.907 3.402 3.407 -0.01144 2850 59 1 14 -2.122 2.126 3.333 3.335 -0.01121 2850 59 1 11 -2.376 2.377 3.253 3.261 -0.01094 2850 59 1 19 -1.246 1.257 3.674 3.677 -0.01235 2850 59 1 22 -1.506 1.512 3.570 3.572 -0.01200 2850 59 1 17 -1.902 1.907 3.402 3.407 -0.01144 2850 59 1 14 -2.122 2.126 3.333 3.335 -0.01121 2850 59 1 11 -2.376 2.377 3.253 3.261 -0.01094 2850 59 1 19 -1.246 1.257 3.674 3.677 -0.01235 2850 59 1 22 -1.506 1.512 3.570 3.572 -0.01200 2850 59 1 17 -1.902 1.907 3.402 3.407 -0.01144 2850 59 1 14 -2.122 2.126 3.333 3.335 -0.01121 2850 59 1 11 -2.376 2.377 3.253 3.261 -0.01094 2850 59 1 19 -1.246 1.257 3.674 3.677 -0.01235 2850 59 1 22 -1.506 1.512 3.570 3.572 -0.01200 2850 59 1 17 -1.902 1.907 3.402 3.407 -0.01144 2850 59 1 14 -2.122 2.126 3.333 3.335 -0.01121 2850 59 1 11 -2.376 2.377 3.253 3.261 -0.01094 2850 59 1 19 -1.246 1.257 3.674 3.677 -0.01235 2850 59 1 22 -1.506 1.512 3.570 3.572 -0.01200 2850 59 1 17 -1.902 1.907 3.402 3.407 -0.01144 2850 59 1 14 -2.122 2.126 3.333 3.335 -0.01121 2850 59 1 11 -2.376 2.377 3.253 3.261 -0.01094 2850 59 1 19 -1.246 1.257 3.674 3.677 -0.01235 2850 59 1 22 -1.506 1.512 3.570 3.572 -0.01200 2850 59 1 17 -1.902 1.907 3.402 3.407 -0.01144 2850 59 1 14 -2.122 2.126 3.333 3.335 -0.01121 2850 59 1 11 -2.376 2.377 3.253 3.261 -0.01094 ---=== SPECTROSCOPY DATA SUMMARY ===--- UT Exp Time flavor comment (S/N)^2 totals ========================================== b1 r1 b2 r2 ----- sequence 12477, plate 768 ------- 07:56 12477 10.0 flat 07:58 12478 2.0 arc ---=== TELESCOPE OFFSETS AND SCALE I ===--- Time Instrument getclock Az Alt Rot Scale ------------------------------------------------------------------------------ 22:25 imager 1010294727 0.002163 0.000435 -0.006176 1.000000 ---=== TELESCOPE OFFSETS AND SCALE II ===--- ---=== DATA TAPE SUMMARY ===--- Goes: JLsomething Stays: JLsomething else ---=== FOCUS LOG ===--- setmir piston Temp Wind Time Inst scale M1 M2 Foc Az Alt (C) MPH Dir filt fwhm ------------------------------------------------------------------------------ 22:25 imager 1.00000 0 -340 -243 111 54.2 -2.6 14 13 23-i' 1.52 ---=== WEATHER LOG ===--- Wind Time Temp F Dewp F MPH Direction Dust DIMM Sky 16:34 25 13 0 14 (NNE) 59 - 17:06 24 8 12 15 (NNE) 40 - 17:38 25 -1 14 22 (NNE) 28 - 18:15 26 -6 15 22 (NNE) 18 - 18:47 25 3 15 5 (N) 34 - 19:19 25 5 17 26 (NNE) 33 - 19:51 27 -2 9 8 (N) 30 - 20:24 27 -5 14 20 (NNE) 31 - 20:56 27 -6 26 3 (N) 27 - 21:28 27 -3 8 10 (N) 31 - 22:04 27 -2 21 351 (NNW) 22 - 22:37 27 -1 21 10 (N) 23 - 23:09 26 -1 22 3 (N) 24 - 23:41 26 0 22 10 (N) 41 - 00:16 27 -1 17 4 (N) 31 - 00:49 28 -6 16 10 (N) 55 - 01:22 29 -9 18 14 (NNE) 34 - 01:54 27 -7 23 17 (NNE) 45 - 02:26 28 -4 19 10 (N) 36 - 02:58 28 2 26 24 (NNE) 33 - 03:30 30 5 20 25 (NNE) 37 - 04:03 29 4 23 8 (N) 31 - 04:35 28 2 20 31 (NNE) 38 - ---=== TELESCOPE STATUS ===--- Doors Cracked - Fans on: 23:00UT Enclosure Off: 00:00 UT Building closed (wind): 08:30UT Interlcoks Bypassed: Az slip Alt slip Building Door kickback ---=== SOFTWARE USED ===--- IOP/SOP: v3_64_3a Watcher: v2_13_2 MCP: v5_8_7 - declared current TPM: v2_4_5 AstroDa: v14_40 TCC: 2.5.5 sdssProcedures: 1_37 tccMon: v1_7 ---=== MIRROR NUMBERS ===--- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A 0.0710 0.0750 Axial B 0.8080 0.8020 Axial C 0.0720 0.0710 Trans D -1.4990 -1.4860 Lateral E 1.8190 1.8540 Lateral F 1.4050 1.4240 GALILS Commanded: 5400. -3700. 900. -200. 31550. 30650. Actual: 5400. -3700. 900. -200. 31550. 30650. 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.: -4.3 Alt.: 29.987661 MIGS TONIGHT NOMINAL Axial A 1.5590 1.5500 Axial B 1.2370 1.2260 Axial C 1.2650 1.2480 Trans D 0.2370 0.2320 GALILS Commanded: 1599561. 1564726. 1586332. -10400. -9750. Actual: 1599600. 1565250. 1586350. -10400. -9750. SETMIR VALUES SecDesOrient: 1257.00 -3.40 -10.00 0.00 133.82 SecOrient: 1256.84 -3.52 -10.12 -0.32 133.78 ---=== PROBLEMS IN DETAIL ===--- IOP lost track of time ---------------------- As the calcStripeParams attempts below show, sometimes they worked and sometimes they didn't. When we issued them with the -time option, it seemed to get them right every time. Unfortunately, it appears scanStripe calls calcStripeParams before allowing the telescope to slew to the start of the strip. Our first few scanStripes failed because it thought it was being asked to slew to 1deg alt. We managed to slew anyway by repeating the scanStripe a few times until it presumably got the right time and therefore, the right answer. A PR was filed (PR#3053) and Craig Loomis responded two minutes before GNATS told me the PR had been submitted (although everything he checked out was OK, so we need to find someone to do some serious debugging here)! (Notice the leap seconds value....) im> calcStripeParams 33 N -startLambda -43 leap seconds = -46.9228 {lambda -43} {eta 25} {lambdaMin -57.8} {lambdaMax 61.9} {gcNode 95} {gcInc 57.5} {mu 142.00000000} {nu 0.00000000} {ra 124.94982733} {dec 38.08409888} {angle 46.950767130328899} {scanVel 0.0041780722} {vx 0.0028520629807233565} {vy 0.0030531989883399741} {alt 40.26839939} {az 114.58447443999999} {boreOffset -0.10483333333333333} {xBore -22.740237} {yBore 0} im> calcStripeParams 33 N -startLambda -44 leap seconds = -46.9228 {lambda -44} {eta 25} {lambdaMin -57.8} {lambdaMax 61.9} {gcNode 95} {gcInc 57.5} {mu 141.00000001} {nu 0.00000000} {ra 124.09112673} {dec 37.35019340} {angle 47.4761059915377} {scanVel 0.0041780722} {vx 0.0028239490351187565} {vy 0.0030792205434922457} {alt 1.18922739} {az 135.09755018999999} {boreOffset -0.10483333333333333} {xBore -22.740237} {yBore 0} im> calcStripeParams 33 N -startLambda -43 leap seconds = -46.9228 {lambda -43} {eta 25} {lambdaMin -57.8} {lambdaMax 61.9} {gcNode 95} {gcInc 57.5} {mu 142.00000000} {nu 0.00000000} {ra 124.94982733} {dec 38.08409888} {angle 46.950767130328899} {scanVel 0.0041780722} {vx 0.0028520629807233565} {vy 0.0030531989883399741} {alt 1.17462887} {az 136.09765641999999} {boreOffset -0.10483333333333333} {xBore -22.740237} {yBore 0} im> calcStripeParams 33 N -startLambda -43 leap seconds = -46.9228 {lambda -43} {eta 25} {lambdaMin -57.8} {lambdaMax 61.9} {gcNode 95} {gcInc 57.5} {mu 142.00000000} {nu 0.00000000} {ra 124.94982733} {dec 38.08409888} {angle 46.950767130328899} {scanVel 0.0041780722} {vx 0.0028520629807233565} {vy 0.0030531989883399741} {alt 1.17462887} {az 136.09765641999999} {boreOffset -0.10483333333333333} {xBore -22.740237} {yBore 0} im> calcStripeParams 33 N -startLambda -43 -time 21:15 {lambda -43} {eta 25} {lambdaMin -57.8} {lambdaMax 61.9} {gcNode 95} {gcInc 57.5} {mu 142.00000000} {nu 0.00000000} {ra 124.94982733} {dec 38.08409888} {angle 46.950767130328899} {scanVel 0.0041780722} {vx 0.0028520629807233565} {vy 0.0030531989883399741} {alt 40.53683486} {az 114.49876872} {boreOffset -0.10483333333333333} {xBore -22.740237} {yBore 0} Bumping the windscreen ---------------------- azimuth (Windscreen touched in azimuth: CCW (Jan 05 23:41:32): Jan 05 23:41:36 MST ) But this was probably do the the doghouse paddle hitting a nearby LN2 dewar. Is the glass half full or empty? ---------------- ---------------- No one was quite sure, but we got a lot of different opinions. (See if you attach the opinion to the Observer. Hint: the first three are from the 3.5m folk. A prize awaits the first correct responder.): The glass is half full. Why worry about it? I guess I can see where you could argue that technically, it's really half empty -- but why would you want to? Well, yeah, it LOOKS like it's half full, but you can never be sure. I worked on this glass once that seemed to be half full, but it turned out most of that was ice, and ice takes up more room than water, that's why it floats, so when the ice melted, turned out the glass was only a quarter full. So I rigged up this heat lamp with some duct tape and a couple of washers . . . . HALF?! That's way too low! You have to refill it before it gets to that level. You mean you can input it as how empty OR how full? The watcher just shows it one way! Oh, you can determine that in the TCC. It's simple. SHOW GLASS /PROPORTION returns the level in decimal inches. Just hang the glass from a balloon and let it go from the telescope pier in the sunlight, and the water will all be gone! Yeah, I know it's a problem, it's been reported. There's a phonecon for tomorrow afternoon to discuss it. Let me see if Google can find any good sites about this. Who the hell cares? It's just a f&*$ing glass of water! (slurp) Mmm, good water. Was that from the RO tap? Mystery non-Observer Bonus: Glass? Sorry, I don't do Windows.