From: Kaike Pan Subject: Re: [sloan-25mlog 4610] 2.5m obslog 20190903 (SJD 58730) Date: Wed, 4 Sep 2019 14:06:49 -0600 --Apple-Mail=_43C648BE-FF56-42AA-BC88-F224FC9CD473 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Hi John, These numbers in our tracking tests last night include errors from all = three axes, not only azimuth, and the tracking time for 2) and 3) are 20 minutes (10 minutes before the transit and 10 minutes after the = transit). So their error rate should be 0.15 and On Sep 4, 2019, at 1:27 PM, Wilson, John C (jcw6z) = wrote: >=20 > Hi Kaike & Conor, >=20 > Following up on my earlier forwarding of Conor's email from 2017, = attached is a slide in which I tried to highlight what I think is the = azimuth tracking error found during Conor's daytime tests with the = 2.5-m. The black dots show the difference in the TCC commanded position = or velocity and the MCP=E2=80=99s reported position or velocity. The = data give about 0.5 arcsec/min azimuth error rate on one side of transit = for a high altitude transit (86 deg). =20 >=20 > In comparison, based on the descriptions of last night's tracking = tests (appended below), I get the following error rates: 1) 0.13 = arcsec/min 2) 0.3 arcsec/min 3) 0.4 arcsec/min. To the extent that = the difference between commanded and reported position in the day time = is equivalent to absolute on-sky drifts based on stars, this at least = shows tracking performance is on par with at least one previous test = with the old MCP. =20 >=20 > It is a different question whether we should be satisfied with these = tracking results. But our main goal at the moment is to commission and = test the new MCP. >=20 > Thanks, >=20 > John. >=20 > -------------- > We have excellent tracking!!! > 1) For a star with HA=3D-2:00:00, we tracked it with the engineering = camera on the > axis for 31 minutes, the biggest separation among images taken in 31 = minutes is > about 4". >=20 > 2) For tracked another star for 10 minutes on each side of its = transit. The > biggest image separation is about 3".=20 >=20 > 3). We tracked a star 10 minutes on each side of its transit 1 degree = off the > axis. The biggest image separation is less than 4".=20 > ----------------- >=20 >=20 > From: sloan-25mlog > on behalf of kpan@apo.nmsu.edu = > > Sent: Wednesday, September 4, 2019 8:08 AM > To: obs-report-25m@apo.nmsu.edu = > > Subject: [sloan-25mlog 4610] 2.5m obslog 20190903 (SJD 58730) > =20 >=20 > APACHE POINT OBSERVATORY SDSS 2.5M >=20 > OBSERVING LOG > Tuesday September 03, 2019 >=20 > (SJD 58730) >=20 > ---- Observing Team ---- >=20 > Kaike Pan > Viktor Malanuskenko >=20 >=20 > ---- Observing Plan ---- >=20 > Check the instrument block and take a new pointing model. >=20 >=20 > ---- Observing Summary ---- >=20 > It is a partly cloudy night. We completed and checked the instrument = block, > obtained a new pointing model, did a tracking test. I planned to = check donuts > for last night's collimation effect. The seeing was too bad for an = donuts checking. >=20 > A productive night. >=20 > The instrument block gives very good fitting on ring data sets.=20 >=20 > The pointing model was taken with poor seeing, 1.2" - 4.0". The = engineering > camera has some dusts on it which also affect the centriod = measurements of some > stars, so impact the pointing model. The new pointing model is very = much same as > the last one from June which was taken in a better weather condition. = The > fitting has rms and PSD (population standard deviation) of 3.13" and = 3.28". The > June pointing model has a rms and PSD of 3.11" and 3.26". At least, = the new MCP > doesn't make pointing model worse, potential better considering the = weather and > engineering camera condition. >=20 > The seeing was too poor to check donuts. >=20 > We have excellent tracking!!! > 1) For a star with HA=3D-2:00:00, we tracked it with the engineering = camera on the > axis for 31 minutes, the biggest separation among images taken in 31 = minutes is > about 4". >=20 > 2) For tracked another star for 10 minutes on each side of its = transit. The > biggest image separation is about 3".=20 >=20 > 3). We tracked a star 10 minutes on each side of its transit 1 degree = off the > axis. The biggest image separation is less than 4". =20 >=20 >=20 > Notes: > =3D=3D=3D=3D=3D=3D=3D > 1. General observations on slew tracking performance. > 1) Tested several "tcc track mount" slews. slews stopped right at = the > destinations at all three axis. > 2). Some times, rotator errors are very big, 2000 to 3000. = Especially at the > beginning of the night. It seems that it becomes better after a couple = of hours. > 3). looks like that the new MCP fixed the "out-of-closed-loop" = issue. > Normally, we will experience 5 to 10 "out-of-close-loop". We did = experience any > tonight. =20 >=20 > 2. The "W" LED indicator for cartridge latch doesn't work. >=20 > 3. Both LUI and m4l cannot got mirror numbers. See log. We cannot take = mirror > numbers. But TPM has them. Here are nominal mirror numners: > M1: -5.3290 (A), -5.0480 (B), -5.2690 (C), -0.5750 (D), 9.3345 (E), = 14.3637(F). > M2: -6.6680 (A), -0.0410 (B), -6.6720 (C), -0.0740 (Y) >=20 > 4. Azimuth fiducial errors increase gradually. Do fiducial corrections = are > applied in tcc slews? Several times, the error are larger than 600, = then we > force correction by accept the fiducial on mcpMenu, the next cross = will have an > error about 10, then the error gradually increase toward 600 again. We = forced > the AZ fiducial correction 5 times during the data taking of the = pointing model. >=20 > BOSS camera vacuun at 6:15 AM: SP1: 1.7e-6, SP2: 1.4e-7. >=20 >=20 > ---- Observing Log ---- >=20 > Afternoon > --------- > Check out softwares. ecamera is running. Dark looks fine.=20 >=20 > I could not get mirror numbers after home/relax mirrors. When taking = from LUI, > it showing "waiting for lui.apo.nmsu.edu ", = and often return invalid channels. > Here is an example: > =3D=3D=3D=3D=3D=3D=3D=3D > PRIMARY: > -------- > Scale: 1.000000; >=20 > MIGS TONIGHT NOMINAL > Axial A: tpm_MIG1A --- Invalid channel name tpm_MIG1A --- = Invalid channel name > Axial B: tpm_MIG1B --- Invalid channel name tpm_MIG1B --- = Invalid channel name > Axial C: -5.269 tpm_MIG1C --- Invalid channel name > Trans D: tpm_MIG1DT --- Invalid channel name tpm_MIG1DT --- = Invalid channel name > Lateral E: 9.3345 9.3345 > Lateral F: 14.3637 14.3637 >=20 > GALILS > Commanded: 11200 -1850 tpm_M1GAL2C --- Invalid channel name 29650 = tpm_M1GAL4C > --- Invalid channel name tpm_M1GAL5C --- Invalid channel name > Actual: tpm_M1GAL0A --- Invalid channel name -1850 6850 29650 = 21250 21050 >=20 > SETMIR VALUES > PrimDesOrient: 0.0 -11.37 6.87 375.47 621.12 > PrimOrient: 0.0 -11.4 6.58 375.38 620.77 >=20 > SECONDARY: > ---------- >=20 > Focus: 0.0000 > Air temp: 16.0 > Altitude: 30.0 >=20 > MIGS TONIGHT NOMINAL > Axial A: -6.668 -6.668 > Axial B: tpm_MIG2B --- Invalid channel name tpm_MIG2B --- = Invalid channel name > Axial C: tpm_MIG2C --- Invalid channel name tpm_MIG2C --- = Invalid channel name > Trans D: -0.074 -0.074 >=20 > GALILS > Commanded: 1058650 1101250 1079450 -7250 -6500 > Actual: 1058599 1101294 1079581 -7250 -6550 >=20 > SETMIR VALUES > SecDesOrient: 857.0 2.7 12.75 -38.35 156.51 > SecOrient: 857.12 2.65 12.8 -37.82 156.18 > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D >=20 > When using "m4l" script on sdss-hub:/home/observer/bin, I got: > Telnet read from sdss4-host2.apo.nmsu.edu:2001 = failed: Traceback (most recent > call last): > File "/home/observer/bin/m4l", line 29, in mirrors > reply =3D tn.read_all () > File "/usr/local/lib/python2.7/telnetlib.py", line 382, in read_all > self.fill_rawq() > File "/usr/local/lib/python2.7/telnetlib.py", line 573, in fill_rawq > buf =3D self.sock.recv(50) > error: [Errno 104] Connection reset by peer >=20 > -1 > =3D=3D=3D > TPM shows correct mirror numbers. So it must communication issue.=20 > Night: > =3D=3D=3D=3D=3D=3D > Completed the instrument block and check the updated the block with = the 2nd set > of data.The ring data fit nicely with the 2nd set of data. >=20 > 04:33Z: started pointing model. the best focus is -130. Seeing is a = variable, > depends on pointing. Wind speed at 19 mph from east. The best seeing = at 1.2". > The worst is 3.5". >=20 > 04:42Z: started the data collection. Mag range set to 8.2 to 9.7. = Exposure time > as 4.0, settling time for 4 sec. > We have all 132 stars. One is removed as an outlier. Use fauto, we = got: > * fauto >=20 > coeff change value sigma >=20 > 1 IA -0.000 +104.34 1.625 > 2 IE +0.000 -23.21 1.425 > 3 & HASA +0.000 +1.55 0.665 > 4 & HACA -0.000 -1.44 0.664 > 5 & HECA2CE +0.000 +1.28 0.582 > 6 & HECE3 -0.000 -22.38 2.237 > 7 & HESE4 +0.000 +7.76 2.095 > 8 NPAE +0.00 > 9 CA -0.000 +3.12 1.036 > 10 & HSSE2 +0.000 -4.01 1.842 > 11 AN +0.000 -4.21 0.369 > 12 AW -0.000 +3.46 0.368 > 13 TF +0.000 +154.19 3.277 >=20 > Sky RMS =3D 3.27 > Popn SD =3D 3.43 >=20 > coeff change value sigma >=20 > 1 IA +0.574 +104.33 1.588 > 2 IE -0.024 -23.20 1.364 > 3 & HASA +0.246 +2.01 0.651 > 4 & HACA +0.078 -1.18 0.640 > 5 & HECA2CE -0.049 +1.27 0.564 > 6 & HECE3 +0.169 -22.46 2.170 > 7 & HESE4 -0.120 +7.81 2.020 > 8 NPAE +0.00 > 9 & HSSE2 -0.511 -4.02 1.784 > 10 AN -0.027 -4.24 0.354 > 11 AW +0.031 +3.55 0.356 > 12 TF -0.188 +154.27 3.159 > 13 CA +0.099 +3.13 0.992 >=20 > Sky RMS =3D 3.13 > Popn SD =3D 3.28 >=20 > Observation #1 is a weak outlier candidate. >=20 > This pointing model is very comparable with the last one that has 130 = points. > Here's the *new* fit: >=20 > coeff change value sigma >=20 > 1 IA -0.119 +94.21 3.631 > 2 IE +0.057 -18.85 1.287 > 3 & HACA +0.100 -2.14 0.652 > 4 & HESA2 -0.018 +0.63 0.396 > 5 & HECE3 +0.199 -0.80 2.064 > 6 NPAE -0.058 -9.89 4.671 > 7 CA +0.089 -7.24 5.528 > 8 AN -0.029 -3.25 0.317 > 9 AW +0.013 +2.34 0.357 > 10 TX +0.421 +2.24 3.929 > 11 PZZ1 -0.697 +119.74 6.203 >=20 > Sky RMS =3D 3.11 > Popn SD =3D 3.26 >=20 > Now we still have some time, we would like to check donuts and run = tracking tests.=20 >=20 > Check donuts: > the first star:=20 > tcc track/pterr 80,60 obs/rotty=3Dobj/rota=3D0 /magRange=3D(7.5,7.6) > Best focus: -150 at frame 394-395. > focus at -450: We didn't see donuts frame number 396. Donuts can seen = at +/- > 500. frame 398 But that doesn't tell us much.=20 >=20 > The wind speed is at 22 mph, from northeast. Try to point away from = the wind to > see if we can have a better seeing. No luck, still have 3" seeing, = cannot check > donuts. Then we run tracking test. >=20 > Starting tracking test: tracking on one star for 20 minutes to see how = much the > star images move.=20 >=20 > Tracking test:=20 > 1) We start to track the 1st star when its HA is about -2.0 hours. = tracking the > star for 31 minutes. The difference between the maximum and min pixel = number in > x is 5.5 pixels (2.35"), in Y is 7.5 pixels (3.21"), This means that = star > should be inside our small guiding fiber. Frames: 414 - 497 >=20 > 2) the 2nd star we selected is one that is being transiting. We start = to track > it when its HA is -00:10:00, stopped when HA at +00:10:00. For the 20 = minutes > the difference between the max and min are 6 pixels for Y and 5 pixels = for X. > There is a obvious trends that move is moving from low-left to = top-right. > frames: 499 - 553. >=20 > 3). We tracked the first two stars on the axis. To test star tracking = at edges > of the field, we move the engineering camera off the axis 1 degree, = and track a > star We start to track the star when its HA=3D-00:10:00, and stopped = at HA=3D+00:10:00. > Frames: 555 - 608. For the 20 minutes tracking, the difference between = the max > and min are 7 pixels for Y and 5.5 pixels for X. There is a obvious = trends that > move is moving from low-left to top-right.=20 >=20 > 11:50Z: close. >=20 > ---- Mirror Numbers ---- >=20 >=20 > PRIMARY: > -------- > Scale: 1.000000; >=20 > MIGS TONIGHT NOMINAL > Axial A: -5.334 -5.261 > Axial B: -5.047 -5.086 > Axial C: -5.27 -5.29 > Trans D: -0.576 0.244 > Lateral E: 9.3472 9.0805 > Lateral F: 14.5034 14.224 >=20 > GALILS > Commanded: 11200 -1850 6850 29650 21250 21050 > Actual: 11200 -1850 6850 29650 21250 21050 >=20 > SETMIR VALUES > PrimDesOrient: 0.0 -11.37 6.87 375.47 621.12 > PrimOrient: 0.0 -11.4 6.58 375.38 620.77 >=20 > SECONDARY: > ---------- >=20 > Focus: 0.0000 > Air temp: 19.2 > Altitude: 30.0 >=20 > MIGS TONIGHT NOMINAL > Axial A: -6.45 -6.469 > Axial B: 0 0 > Axial C: 0 0 > Trans D: 0 0 >=20 > GALILS > Commanded: 806750 849450 tpm_M2GAL2C --- Invalid channel name -7250 = -6550 > Actual: 806763 849383 827620 -7250 -6550 >=20 > SETMIR VALUES > SecDesOrient: 657.0 2.7 12.75 -38.35 156.51 > SecOrient: 657.0 2.72 12.76 -38.2 155.98 >=20 >=20 >=20 > PRIMARY: > -------- > Scale: 1.000000; >=20 > MIGS TONIGHT NOMINAL > Axial A: -5.329 -5.261 > Axial B: -5.049 -5.086 > Axial C: -5.269 -5.29 > Trans D: -0.574 0.244 > Lateral E: 9.3345 9.0805 > Lateral F: 14.3637 14.224 >=20 > GALILS > Commanded: 11200 -1850 6850 29650 21250 21050 > Actual: 11200 -1850 6850 29650 21250 21050 >=20 > SETMIR VALUES > PrimDesOrient: 0.0 -11.37 6.87 375.47 621.12 > PrimOrient: 0.0 -11.4 6.58 375.38 620.77 >=20 > SECONDARY: > ---------- >=20 > Focus: 0.0000 > Air temp: 16.1 > Altitude: 30.0 >=20 > MIGS TONIGHT NOMINAL > Axial A: -6.668 -6.469 > Axial B: -0.041 0 > Axial C: -6.672 0 > Trans D: -0.075 0 >=20 > GALILS > Commanded: 1058800 1101400 1079550 -7250 -6550 > Actual: tpm_M2GAL0A --- Invalid channel name 1101257 1079575 -7250 = -6550 >=20 > SETMIR VALUES > SecDesOrient: 857.0 2.7 12.75 -38.35 156.51 > SecOrient: 857.04 2.71 12.69 -38.46 156.71 >=20 >=20 >=20 > PRIMARY: > -------- > Scale: 1.000000; >=20 > MIGS TONIGHT NOMINAL > Axial A: -5.329 -5.261 > Axial B: -5.048 -5.086 > Axial C: -5.269 -5.29 > Trans D: -0.574 0.244 > Lateral E: 9.3345 9.0805 > Lateral F: 14.3637 14.224 >=20 > GALILS > Commanded: 11200 -1850 6850 29650 21250 21050 > Actual: 11200 -1850 6850 29650 21250 21050 >=20 > SETMIR VALUES > PrimDesOrient: 0.0 -11.37 6.87 375.47 621.12 > PrimOrient: 0.0 -11.4 6.58 375.38 620.77 >=20 > SECONDARY: > ---------- >=20 > Focus: 0.0000 > Air temp: 16.1 > Altitude: 30.0 >=20 > MIGS TONIGHT NOMINAL > Axial A: -6.668 -6.469 > Axial B: -0.041 0 > Axial C: -6.672 0 > Trans D: -0.074 0 >=20 > GALILS > Commanded: 1058700 1101300 1079700 -7200 -6550 > Actual: 1058674 1101515 1079745 -7200 -6550 >=20 > SETMIR VALUES > SecDesOrient: 857.0 2.7 12.75 -38.35 156.51 > SecOrient: 857.11 2.72 12.8 -38.39 156.71 >=20 >=20 >=20 > PRIMARY: > -------- > Scale: 1.000000; >=20 > MIGS TONIGHT NOMINAL > Axial A: -5.329 tpm_MIG1A --- Invalid channel name > Axial B: -5.048 tpm_MIG1B --- Invalid channel name > Axial C: -5.269 tpm_MIG1C --- Invalid channel name > Trans D: -0.574 tpm_MIG1DT --- Invalid channel name > Lateral E: 9.3345 9.3345 > Lateral F: 14.3637 14.3637 >=20 > GALILS > Commanded: 11200 -1850 6850 29650 21250 21050 > Actual: 11200 -1850 6850 29650 21250 21050 >=20 > SETMIR VALUES > PrimDesOrient: 0.0 -11.37 6.87 375.47 621.12 > PrimOrient: 0.0 -11.4 6.58 375.38 620.77 >=20 > SECONDARY: > ---------- >=20 > Focus: 0.0000 > Air temp: 16.1 > Altitude: 30.0 >=20 > MIGS TONIGHT NOMINAL > Axial A: -6.668 -6.668 > Axial B: -0.041 tpm_MIG2B --- Invalid channel name > Axial C: tpm_MIG2C --- Invalid channel name tpm_MIG2C --- = Invalid channel name > Trans D: tpm_MIG2DT --- Invalid channel name -0.074 >=20 > GALILS > Commanded: 1058750 1101500 1079550 tpm_M2GAL3C --- Invalid channel = name tpm_M2GAL4C --- Invalid channel name > Actual: tpm_M2GAL0A --- Invalid channel name tpm_M2GAL1A --- = Invalid channel name tpm_M2GAL2A --- Invalid channel name -7250 -6550 >=20 > SETMIR VALUES > SecDesOrient: 857.0 2.7 12.75 -38.35 156.51 > SecOrient: 856.99 2.72 12.78 -38.4 156.71 >=20 >=20 >=20 > PRIMARY: > -------- > Scale: 1.000000; >=20 > MIGS TONIGHT NOMINAL > Axial A: tpm_MIG1A --- Invalid channel name tpm_MIG1A --- = Invalid channel name > Axial B: tpm_MIG1B --- Invalid channel name tpm_MIG1B --- = Invalid channel name > Axial C: -5.269 tpm_MIG1C --- Invalid channel name > Trans D: -0.574 tpm_MIG1DT --- Invalid channel name > Lateral E: 9.3345 9.3345 > Lateral F: 14.3637 14.3637 >=20 > GALILS > Commanded: 11200 -1850 6850 29650 21250 tpm_M1GAL5C --- Invalid = channel name > Actual: 11200 -1850 6850 29650 21250 21050 >=20 > SETMIR VALUES > PrimDesOrient: 0.0 -11.37 6.87 375.47 621.12 > PrimOrient: 0.0 -11.4 6.58 375.38 620.77 >=20 > SECONDARY: > ---------- >=20 > Focus: 0.0000 > Air temp: 16.1 > Altitude: 30.0 >=20 > MIGS TONIGHT NOMINAL > Axial A: -6.668 -6.668 > Axial B: -0.041 tpm_MIG2B --- Invalid channel name > Axial C: -6.672 tpm_MIG2C --- Invalid channel name > Trans D: -0.074 -0.074 >=20 > GALILS > Commanded: 1058750 1101350 1079550 -7250 -6550 > Actual: 1058762 1101370 1079707 -7250 -6550 >=20 > SETMIR VALUES > SecDesOrient: 857.0 2.7 12.75 -38.35 156.51 > SecOrient: 857.0 2.63 12.72 -38.45 156.77 >=20 >=20 >=20 > PRIMARY: > -------- > Scale: 1.000000; >=20 > MIGS TONIGHT NOMINAL > Axial A: tpm_MIG1A --- Invalid channel name tpm_MIG1A --- = Invalid channel name > Axial B: tpm_MIG1B --- Invalid channel name tpm_MIG1B --- = Invalid channel name > Axial C: -5.269 tpm_MIG1C --- Invalid channel name > Trans D: tpm_MIG1DT --- Invalid channel name tpm_MIG1DT --- = Invalid channel name > Lateral E: 9.3345 9.3345 > Lateral F: 14.3637 14.3637 >=20 > GALILS > Commanded: 11200 -1850 tpm_M1GAL2C --- Invalid channel name 29650 = tpm_M1GAL4C --- Invalid channel name tpm_M1GAL5C --- Invalid channel = name > Actual: tpm_M1GAL0A --- Invalid channel name -1850 6850 29650 = 21250 21050 >=20 > SETMIR VALUES > PrimDesOrient: 0.0 -11.37 6.87 375.47 621.12 > PrimOrient: 0.0 -11.4 6.58 375.38 620.77 >=20 > SECONDARY: > ---------- >=20 > Focus: 0.0000 > Air temp: 16.0 > Altitude: 30.0 >=20 > MIGS TONIGHT NOMINAL > Axial A: -6.668 -6.668 > Axial B: tpm_MIG2B --- Invalid channel name tpm_MIG2B --- = Invalid channel name > Axial C: tpm_MIG2C --- Invalid channel name tpm_MIG2C --- = Invalid channel name > Trans D: -0.074 -0.074 >=20 > GALILS > Commanded: 1058650 1101250 1079450 -7250 -6500 > Actual: 1058599 1101294 1079581 -7250 -6550 >=20 > SETMIR VALUES > SecDesOrient: 857.0 2.7 12.75 -38.35 156.51 > SecOrient: 857.12 2.65 12.8 -37.82 156.18 >=20 >=20 >=20 > ---- Telescope Status ---- >=20 > 01:05Z Started ventilation > encl25m : open > encl25m : closed >=20 > No interlocks bypassed >=20 > Status at: > Telescope stowed at: 121.0, 30.0, 0.0 mount > Instrument mounted: cartridge =3D =20 > Counterweights at: =20 > LN2 autofill systems: Connected and turned on > 180L LN2 dewar scales: SP1 lbs, psi > SP2 lbs, psi >=20 >=20 >=20 >=20 > ---- Software Used ---- >=20 > Get Versions, 09/04/19, 00:55:07 > -- STUI software:=20 > STUI : 1.7.8 > alerts : trunk > apo : trunk > boss : v4_0 > -boss.specMec : 3.0.4 > gcamera : v2_2 > guider : 3.8.1 > hartmann : 1.6.0 > hub : Tag: v4.2 > mcp : Linux > -mcp.plc : 34 > -mcp.azFiduci : v1_140 > -mcp.altFiduc : v1_140 > -mcp.rotFiduc : v1_140 > platedb : 2.8.0 > sop : 3.12.3 > tcc : 1.3.1 > apogee : not availble > apogeecal : not availble > apogeeql : v1_6_1 > APO-local : not availble >=20 > -- Other versions ---- > idlspec2d : v5_7_12 > plate-mapper3 : NOCVS:v6_0_12 > petunia : git > autoscheduler : git > sdss_python_module: trunk > mangadrp : trunk exported >=20 >=20 >=20 > ____________________________________________________________ > Logs of Nightly APO Activities > > = https://trac.sdss.org/tracmailman/browser/private/sloan-25mlog/index.html = > --Apple-Mail=_43C648BE-FF56-42AA-BC88-F224FC9CD473 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 Hi = John, These = numbers in our tracking tests last night include errors from all three = axes, not only azimuth, and the tracking time for 2) and 3) = are20 minutes (10 minutes before the transit and = 10 minutes after the transit). So their error rate should be 0.15 and = < 0.2 arc-second per minutes.-KaikeOn Sep 4, 2019, at 1:27 PM, Wilson, John C (jcw6z) = wrote:Hi Kaike & = Conor,Following up on my earlier forwarding of = Conor's email from 2017, attached is a slide in which I tried to = highlight what I think is the azimuth tracking error found during = Conor's daytime tests with the 2.5-m. The black dots show the difference in the TCC commanded position or velocity and the = MCP=E2=80=99s reported position or velocity. The data give = about 0.5 arcsec/min azimuth error rate on one side of transit for a = high altitude transit (86 deg). In comparison, based on the descriptions of last night's = tracking tests (appended below), I get the following error rates: = 1) 0.13 arcsec/min 2) 0.3 arcsec/min 3) 0.4 = arcsec/min. To the extent that the difference between commanded = and reported position in the day time is equivalent to absolute on-sky = drifts based on stars, this at least shows tracking performance is on = par with at least one previous test with the old = MCP. It is a = different question whether we should be satisfied with these tracking = results. But our main goal at the moment is to commission and test = the new MCP.Thanks,John.--------------We have excellent = tracking!!!1) For a star with HA=3D-2:00:00, we = tracked it with the engineering camera on theaxis for 31 minutes, the biggest separation among images = taken in 31 minutes isabout 4".2) For tracked another star for 10 = minutes on each side of its transit. Thebiggest image separation is about 3". 3). We tracked a star 10 minutes on each = side of its transit 1 degree off theaxis. The biggest image separation is less than = 4". -----------------From: sloan-25mlog on behalf of kpan@apo.nmsu.edu Sent: Wednesday, September 4, = 2019 8:08 AMTo: obs-report-25m@apo.nmsu.edu Subject: [sloan-25mlog 4610] 2.5m = obslog 20190903 (SJD 58730) &nb= sp; = APACHE POINT OBSERVATORY SDSS 2.5M &nb= sp;  = ; OBSERVING LOG &nb= sp;  = ; Tuesday September 03, 2019 &nb= sp;  = ; (SJD = 58730)---- Observing Team ----Kaike PanViktor Malanuskenko---- Observing Plan ----Check the instrument block and take a new = pointing model.---- = Observing Summary ----It is a partly = cloudy night. We completed and checked the instrument block,obtained a new pointing model, did a tracking test. I = planned to check donutsfor last night's collimation = effect. The seeing was too bad for an donuts checking.A productive night.The = instrument block gives very good fitting on ring data sets. The pointing model was taken with poor seeing, 1.2" - 4.0". = The engineeringcamera has some dusts on it which also = affect the centriod measurements of somestars, so impact = the pointing model. The new pointing model is very much same asthe last one from June which was taken in a better weather = condition. Thefitting has rms and PSD (population = standard deviation) of 3.13" and 3.28". TheJune pointing = model has a rms and PSD of 3.11" and 3.26". At least, the new MCPdoesn't make pointing model worse, potential better = considering the weather andengineering camera = condition.The seeing was too poor to check = donuts.We have excellent tracking!!!1) For a star with HA=3D-2:00:00, we tracked it with the = engineering camera on theaxis for 31 minutes, the biggest = separation among images taken in 31 minutes isabout = 4".2) For tracked another star for 10 = minutes on each side of its transit. Thebiggest image = separation is about 3". 3). We tracked a star 10 minutes on each side of its transit = 1 degree off theaxis. The biggest image separation is = less than 4". Notes:=3D=3D=3D=3D= =3D=3D=3D1. General observations on slew tracking = performance. 1) Tested several "tcc track mount" = slews. slews stopped right at thedestinations at all = three axis. 2). Some times, rotator errors are very = big, 2000 to 3000. Especially at thebeginning of the = night. It seems that it becomes better after a couple of hours. 3). looks like that the new MCP fixed the = "out-of-closed-loop" issue.Normally, we will experience 5 = to 10 "out-of-close-loop". We did experience anytonight. 2. The "W" LED indicator for cartridge latch doesn't work.3. Both LUI and m4l cannot got mirror numbers. = See log. We cannot take mirrornumbers. But TPM has them. = Here are nominal mirror numners:M1: -5.3290 (A), -5.0480 = (B), -5.2690 (C), -0.5750 (D), 9.3345 (E), 14.3637(F).M2: = -6.6680 (A), -0.0410 (B), -6.6720 (C), -0.0740 (Y)4. Azimuth fiducial errors increase gradually. Do fiducial = corrections areapplied in tcc slews? Several times, the = error are larger than 600, then weforce correction by = accept the fiducial on mcpMenu, the next cross will have anerror about 10, then the error gradually increase toward 600 = again. We forcedthe AZ fiducial correction 5 times during = the data taking of the pointing model.BOSS = camera vacuun at 6:15 AM: SP1: 1.7e-6, SP2: 1.4e-7.---- Observing Log ----Afternoon---------Check out = softwares. ecamera is running. Dark looks fine. I could not get mirror numbers after home/relax mirrors. When = taking from LUI,it showing "waiting for lui.apo.nmsu.edu", and = often return invalid channels.Here is an example:=3D=3D=3D=3D=3D=3D=3D=3DPRIMARY:--------Scale: 1.000000;MIGS  = ; TONIGHT NOMINALAxial = A: tpm_MIG1A --- Invalid = channel name tpm_MIG1A --- Invalid channel = nameAxial B: = tpm_MIG1B --- Invalid channel name = tpm_MIG1B --- Invalid channel nameAxial = C: -5.269 tpm_MIG1C --- = Invalid channel nameTrans = D: tpm_MIG1DT --- Invalid = channel name tpm_MIG1DT --- Invalid channel = nameLateral E: 9.3345 = 9.3345Lateral F: 14.3637 = 14.3637GALILSCommanded: = 11200 -1850 tpm_M1GAL2C --- Invalid channel name 29650 tpm_M1GAL4C--- Invalid channel name tpm_M1GAL5C --- Invalid channel = nameActual: tpm_M1GAL0A --- = Invalid channel name -1850 6850 29650 21250 21050SETMIR VALUESPrimDesOrient: 0.0 -11.37 6.87 = 375.47 621.12PrimOrient: 0.0 -11.4 6.58 = 375.38 620.77SECONDARY:----------Focus: 0.0000Air = temp: 16.0Altitude: 30.0MIGS  = ; TONIGHT NOMINALAxial = A: -6.668 -6.668Axial B: tpm_MIG2B = --- Invalid channel name tpm_MIG2B --- = Invalid channel nameAxial = C: tpm_MIG2C --- Invalid = channel name tpm_MIG2C --- Invalid channel = nameTrans D: = -0.074 -0.074GALILSCommanded: 1058650 1101250 1079450 -7250 -6500Actual: 1058599 1101294 1079581 -7250 = -6550SETMIR VALUESSecDesOrient: 857.0 2.7 12.75 -38.35 156.51SecOrient: 857.12 2.65 12.8 -37.82 = 156.18=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3DWhen using "m4l" script on = sdss-hub:/home/observer/bin, I got:Telnet read from sdss4-host2.apo.nmsu.edu:2001 failed: Traceback (most = recentcall last): File = "/home/observer/bin/m4l", line 29, in mirrors reply =3D tn.read_all () File "/usr/local/lib/python2.7/telnetlib.py", line = 382, in read_all self.fill_rawq() File "/usr/local/lib/python2.7/telnetlib.py", line = 573, in fill_rawq buf =3D = self.sock.recv(50)error: [Errno 104] Connection reset by = peer-1=3D=3D=3DTPM shows correct mirror numbers. So it must communication = issue. Night:=3D=3D=3D=3D=3D=3DCompleted= the instrument block and check the updated the block with the 2nd = setof data.The ring data fit nicely with the 2nd set of = data.04:33Z: started pointing model. the = best focus is -130. Seeing is a variable,depends on = pointing. Wind speed at 19 mph from east. The best seeing at = 1.2".The worst is 3.5".04:42Z: started the data collection. Mag range set to 8.2 to = 9.7. Exposure timeas 4.0, settling time for 4 sec.We have all 132 stars. One is removed as an outlier. Use = fauto, we got:* fauto = coeff change = value sigma = 1 = IA -0.000 = +104.34 1.625 = 2 = IE = +0.000 -23.21 1.425 3 & = HASA +0.000 = +1.55 0.665 4 & = HACA -0.000 = -1.44 0.664 5 & = HECA2CE +0.000 = +1.28 0.582 6 & = HECE3 -0.000 = -22.38 2.237 7 & = HESE4 +0.000 = +7.76 2.095 = 8 = NPAE &nbs= p; +0.00 = 9 = CA = -0.000 +3.12 1.036 10 & = HSSE2 +0.000 = -4.01 1.842 11 = AN = +0.000 -4.21 0.369 12 = AW = -0.000 +3.46 0.368 13 = TF +0.000 = +154.19 3.277Sky RMS = =3D 3.27Popn SD =3D 3.43 = coeff change = value sigma = 1 = IA +0.574 = +104.33 1.588 = 2 = IE = -0.024 -23.20 1.364 3 & = HASA +0.246 = +2.01 0.651 4 & = HACA +0.078 = -1.18 0.640 5 & = HECA2CE -0.049 = +1.27 0.564 6 & = HECE3 +0.169 = -22.46 2.170 7 & = HESE4 -0.120 = +7.81 2.020 = 8 = NPAE &nbs= p; +0.00 = 9 & HSSE2 = -0.511 -4.02 1.784 10 = AN = -0.027 -4.24 0.354 11 = AW = +0.031 +3.55 0.356 12 = TF -0.188 = +154.27 3.159 13 = CA = +0.099 +3.13 0.992Sky RMS =3D 3.13Popn = SD =3D 3.28Observation #1 is a = weak outlier candidate.This pointing model = is very comparable with the last one that has 130 points.Here's the *new* fit: = coeff change = value sigma = 1 = IA = -0.119 +94.21 3.631 2 = IE = +0.057 -18.85 1.287 3 & = HACA +0.100 = -2.14 0.652 4 & = HESA2 -0.018 = +0.63 0.396 5 & = HECE3 +0.199 = -0.80 2.064 = 6 NPAE = -0.058 -9.89 4.671 7 = CA = +0.089 -7.24 5.528 8 = AN = -0.029 -3.25 0.317 9 = AW = +0.013 +2.34 0.357 10 = TX = +0.421 +2.24 3.929 11 = PZZ1 -0.697 = +119.74 6.203Sky RMS = =3D 3.11Popn SD =3D 3.26Now we still have some time, we would like to = check donuts and run tracking tests. Check donuts:the first star: tcc = track/pterr 80,60 obs/rotty=3Dobj/rota=3D0 /magRange=3D(7.5,7.6)Best focus: -150 at frame 394-395.focus at = -450: We didn't see donuts frame number 396. Donuts can seen at +/-500. frame 398 But that doesn't tell us much. The wind speed is at 22 mph, from northeast. Try to point = away from the wind tosee if we can have a better seeing. = No luck, still have 3" seeing, cannot checkdonuts. Then = we run tracking test.Starting tracking = test: tracking on one star for 20 minutes to see how much thestar images move. Tracking test: 1) We start = to track the 1st star when its HA is about -2.0 hours. tracking thestar for 31 minutes. The difference between the maximum and = min pixel number inx is 5.5 pixels (2.35"), in Y is 7.5 = pixels (3.21"), This means that starshould be = inside our small guiding fiber. Frames: 414 - 4972) the 2nd star we selected is one that is being transiting. = We start to trackit when its HA is -00:10:00, stopped = when HA at +00:10:00. For the 20 minutesthe difference = between the max and min are 6 pixels for Y and 5 pixels for X.There is a obvious trends that move is moving from low-left = to top-right.frames: 499 - 553.3). We tracked the first two stars on the axis. To test star = tracking at edgesof the field, we move the engineering = camera off the axis 1 degree, and track astar We start to = track the star when its HA=3D-00:10:00, and stopped at HA=3D+00:10:00.Frames: 555 - 608. For the 20 minutes tracking, the = difference between the maxand min are 7 pixels for Y and = 5.5 pixels for X. There is a obvious trends thatmove is = moving from low-left to top-right. 11:50Z: close.---- Mirror = Numbers ----PRIMARY:--------Scale: 1.000000;MIGS  = ; TONIGHT NOMINALAxial = A: -5.334 -5.261Axial B: = -5.047 -5.086Axial = C: -5.27 -5.29Trans D: = -0.576 0.244Lateral = E: 9.3472 9.0805Lateral= F: 14.5034 14.224GALILSCommanded: 11200 -1850 6850 29650 = 21250 21050Actual: 11200 -1850 = 6850 29650 21250 21050SETMIR VALUESPrimDesOrient: 0.0 -11.37 6.87 375.47 621.12PrimOrient: 0.0 -11.4 6.58 375.38 620.77SECONDARY:----------Focus: 0.0000Air temp: 19.2Altitude: = 30.0MIGS  = ; TONIGHT NOMINALAxial = A: -6.45 -6.469Axial B: = 0 0Axial = C: = 0 0Trans = D: = 0 0GALILSCommanded: 806750 849450 tpm_M2GAL2C --- = Invalid channel name -7250 -6550Actual: = 806763 849383 827620 -7250 -6550SETMIR = VALUESSecDesOrient: 657.0 2.7 12.75 -38.35 156.51SecOrient: 657.0 2.72 12.76 -38.2 155.98PRIMARY:--------Scale: 1.000000;MIGS  = ; TONIGHT NOMINALAxial = A: -5.329 -5.261Axial B: = -5.049 -5.086Axial = C: -5.269 -5.29Trans D: = -0.574 0.244Lateral = E: 9.3345 9.0805Lateral= F: 14.3637 14.224GALILSCommanded: 11200 -1850 6850 29650 = 21250 21050Actual: 11200 -1850 = 6850 29650 21250 21050SETMIR VALUESPrimDesOrient: 0.0 -11.37 6.87 375.47 621.12PrimOrient: 0.0 -11.4 6.58 375.38 620.77SECONDARY:----------Focus: 0.0000Air temp: 16.1Altitude: = 30.0MIGS  = ; TONIGHT NOMINALAxial = A: -6.668 -6.469Axial B: = -0.041 0Axial = C: -6.672 0Trans D: = -0.075 0GALILSCommanded: 1058800 1101400 1079550 -7250 -6550Actual: tpm_M2GAL0A --- Invalid channel = name 1101257 1079575 -7250 -6550SETMIR = VALUESSecDesOrient: 857.0 2.7 12.75 -38.35 156.51SecOrient: 857.04 2.71 12.69 -38.46 = 156.71PRIMARY:--------Scale: = 1.000000;MIGS  = ; TONIGHT NOMINALAxial = A: -5.329 -5.261Axial B: = -5.048 -5.086Axial = C: -5.269 -5.29Trans D: = -0.574 0.244Lateral = E: 9.3345 9.0805Lateral= F: 14.3637 14.224GALILSCommanded: 11200 -1850 6850 29650 = 21250 21050Actual: 11200 -1850 = 6850 29650 21250 21050SETMIR VALUESPrimDesOrient: 0.0 -11.37 6.87 375.47 621.12PrimOrient: 0.0 -11.4 6.58 375.38 620.77SECONDARY:----------Focus: 0.0000Air temp: 16.1Altitude: = 30.0MIGS  = ; TONIGHT NOMINALAxial = A: -6.668 -6.469Axial B: = -0.041 0Axial = C: -6.672 0Trans D: = -0.074 0GALILSCommanded: 1058700 1101300 1079700 -7200 -6550Actual: 1058674 1101515 1079745 -7200 = -6550SETMIR VALUESSecDesOrient: 857.0 2.7 12.75 -38.35 156.51SecOrient: 857.11 2.72 12.8 -38.39 = 156.71PRIMARY:--------Scale: = 1.000000;MIGS  = ; TONIGHT NOMINALAxial = A: -5.329 tpm_MIG1A --- = Invalid channel nameAxial = B: -5.048 tpm_MIG1B --- = Invalid channel nameAxial = C: -5.269 tpm_MIG1C --- = Invalid channel nameTrans = D: -0.574 tpm_MIG1DT --- = Invalid channel nameLateral = E: 9.3345 9.3345Lateral= F: 14.3637 14.3637GALILSCommanded: 11200 -1850 6850 29650 = 21250 21050Actual: 11200 -1850 = 6850 29650 21250 21050SETMIR VALUESPrimDesOrient: 0.0 -11.37 6.87 375.47 621.12PrimOrient: 0.0 -11.4 6.58 375.38 620.77SECONDARY:----------Focus: 0.0000Air temp: 16.1Altitude: = 30.0MIGS  = ; TONIGHT NOMINALAxial = A: -6.668 -6.668Axial B: = -0.041 tpm_MIG2B --- Invalid channel nameAxial = C: tpm_MIG2C --- Invalid = channel name tpm_MIG2C --- Invalid channel = nameTrans D: = tpm_MIG2DT --- Invalid channel name -0.074GALILSCommanded: 1058750 = 1101500 1079550 tpm_M2GAL3C --- Invalid channel name tpm_M2GAL4C --- = Invalid channel nameActual: tpm_M2GAL0A = --- Invalid channel name tpm_M2GAL1A --- Invalid channel name = tpm_M2GAL2A --- Invalid channel name -7250 -6550SETMIR VALUESSecDesOrient: 857.0 2.7 12.75 = -38.35 156.51SecOrient: 856.99 2.72 = 12.78 -38.4 156.71PRIMARY:--------Scale: = 1.000000;MIGS  = ; TONIGHT NOMINALAxial = A: tpm_MIG1A --- Invalid = channel name tpm_MIG1A --- Invalid channel = nameAxial B: = tpm_MIG1B --- Invalid channel name = tpm_MIG1B --- Invalid channel nameAxial = C: -5.269 tpm_MIG1C --- = Invalid channel nameTrans = D: -0.574 tpm_MIG1DT --- = Invalid channel nameLateral = E: 9.3345 9.3345Lateral= F: 14.3637 14.3637GALILSCommanded: 11200 -1850 6850 29650 = 21250 tpm_M1GAL5C --- Invalid channel nameActual: 11200 -1850 6850 29650 21250 = 21050SETMIR VALUESPrimDesOrient: 0.0 -11.37 6.87 375.47 621.12PrimOrient: 0.0 -11.4 6.58 375.38 620.77SECONDARY:----------Focus: 0.0000Air temp: 16.1Altitude: = 30.0MIGS  = ; TONIGHT NOMINALAxial = A: -6.668 -6.668Axial B: = -0.041 tpm_MIG2B --- Invalid channel nameAxial = C: -6.672 tpm_MIG2C --- = Invalid channel nameTrans = D: -0.074 -0.074GALILSCommanded: 1058750 = 1101350 1079550 -7250 -6550Actual: = 1058762 1101370 1079707 -7250 -6550SETMIR = VALUESSecDesOrient: 857.0 2.7 12.75 -38.35 156.51SecOrient: 857.0 2.63 12.72 -38.45 = 156.77PRIMARY:--------Scale: = 1.000000;MIGS  = ; TONIGHT NOMINALAxial = A: tpm_MIG1A --- Invalid = channel name tpm_MIG1A --- Invalid channel = nameAxial B: = tpm_MIG1B --- Invalid channel name = tpm_MIG1B --- Invalid channel nameAxial = C: -5.269 tpm_MIG1C --- = Invalid channel nameTrans = D: tpm_MIG1DT --- Invalid = channel name tpm_MIG1DT --- Invalid channel = nameLateral E: 9.3345 = 9.3345Lateral F: 14.3637 = 14.3637GALILSCommanded: = 11200 -1850 tpm_M1GAL2C --- Invalid channel name 29650 tpm_M1GAL4C --- = Invalid channel name tpm_M1GAL5C --- Invalid channel nameActual: tpm_M1GAL0A --- Invalid = channel name -1850 6850 29650 21250 21050SETMIR VALUESPrimDesOrient: 0.0 -11.37 6.87 = 375.47 621.12PrimOrient: 0.0 -11.4 6.58 = 375.38 620.77SECONDARY:----------Focus: 0.0000Air = temp: 16.0Altitude: 30.0MIGS  = ; TONIGHT NOMINALAxial = A: -6.668 -6.668Axial B: tpm_MIG2B = --- Invalid channel name tpm_MIG2B --- = Invalid channel nameAxial = C: tpm_MIG2C --- Invalid = channel name tpm_MIG2C --- Invalid channel = nameTrans D: = -0.074 -0.074GALILSCommanded: 1058650 1101250 1079450 -7250 -6500Actual: 1058599 1101294 1079581 -7250 = -6550SETMIR VALUESSecDesOrient: 857.0 2.7 12.75 -38.35 156.51SecOrient: 857.12 2.65 12.8 -37.82 = 156.18---- = Telescope Status ----01:05Z Started ventilation encl25m : open encl25m : closedNo interlocks bypassedStatus = at:Telescope stowed at: 121.0, = 30.0, 0.0 mountInstrument = mounted: cartridge = =3D Counterweights= at: LN2 autofill = systems: Connected and turned on180L LN2 = dewar scales: SP1 = lbs, psi &nb= sp;  = ; SP2 = lbs, psi---- Software Used ----Get Versions, 09/04/19, 00:55:07 -- STUI software: STUI : = 1.7.8alerts : = trunkapo = : trunkboss : = v4_0-boss.specMec : 3.0.4gcamera : v2_2guider : 3.8.1hartmann : 1.6.0hub = : Tag: v4.2mcp = : Linux-mcp.plc : 34-mcp.azFiduci : v1_140-mcp.altFiduc : = v1_140-mcp.rotFiduc : v1_140platedb : 2.8.0sop = : 3.12.3tcc = : 1.3.1apogee = : not availbleapogeecal : not = availbleapogeeql : = v1_6_1APO-local : not availble-- Other versions ----idlspec2d : = v5_7_12plate-mapper3 : = NOCVS:v6_0_12petunia &n= bsp; : gitautoscheduler : gitsdss_python_module: trunkmangadrp = : trunk exported____________________________________________________________Logs of Nightly APO Activities https://trac.sdss.org/tracmailman/browser/private/sloan-25mlog/= index.html<2017 = Tracking Testing.pdf>= --Apple-Mail=_43C648BE-FF56-42AA-BC88-F224FC9CD473--