Subject: 3.5m Night Log 20220406 From: dembicky@apo.nmsu.edu Date: Thu, 7 Apr 2022 12:29:58 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Wednesday, April 06, 2022 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- AP01 S.Merkowitz R.McMillan UW07 P.Szkody P.Szkody GS01 M.Crenshaw J.Falcone, Z.Chapman ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- AP01 APOLLO 19:36 20:31 UW07 DIS 20:35 23:40 GS01 KOSMOS 01:18 07:00 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- AP01/O 19:36 20:36 0 0 0 0 0.0 1.0 0 0 UW07/R 20:36 01:10 0.2 1.3 0 0 0.0 3.1 0 0 GS01/R 01:10 06:35 0 0 0 0 5.4 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: J.Dembicky I noticed a bit of AZ error on the dataq tonight. I tried a few slews back and forth to fix it. MS DUmp of AZ @ 03:08:12 & 03:12:04 (After I slewed in AZ to try to clear). Therre was still some wiggle on it but seemeed a little better. The wiggle in AZ error I believe is due to the wind as we are pointing directly into it. Paula's Slitviewer image was blank for images 138 & 139, I advised restarting TUI while I did a focus sweep. Restarting TUI fixed the display problem. I continued to see oscillations on the AZ error on the DATAQ even when pointing out of the wind.. Not as large but noticable. The AZ current looked fine. We closed due to wind at 23:40 and re-opened at the start of the 3rd program. kosmos spec focus set at 2940 (6C) No problems tonight other than the az error oscillations on the DATAQ. Separate email sent to engineers ------- FAILURE LOG ------- FAILURE MODE TIME PROG INSTR TI/SHU START FINISH DESCRIPTION ---------------------------------------------------------------------- ---------------- FOCUS LOG --------------- Time Instrument Focus Az El Temp Strc Prim Sec Air filt FWHM -------------------------------------------------------------------------- 19:38 APOLLO 400( 1756) -90 62 8.4 9.1 9.5 8.7 8.9 -- 1.60 20:38 dcamera 477( 874) -135 48 7.5 7.6 8.4 7.3 7.5 -- 1.49 21:09 dcamera 415( 771) 126 69 6.9 7.0 7.8 6.7 6.9 -- 1.48 22:00 dcamera 445( 797) 184 39 6.8 6.4 7.2 6.4 6.4 -- 1.86 01:31 khigh 441( 875) 323 71 5.8 5.1 5.6 5.0 5.2 -- 1.24 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 50 6 4 301 (WNW) 2419 clear none 17:00 50 5 7 295 (WNW) 2271 clear none 18:00 49 -1 19 342 (NNW) 1895 clear none 19:00 49 0 11 309 (NW) 2046 clear none 20:00 47 -10 6 26 (NNE) 1725 clear none 21:00 45 -11 6 13 (NNE) 1845 clear none 22:00 44 -13 20 20 (NNE) 2224 clear none 23:00 43 -11 17 49 (NE) 2374 clear none 00:00 43 -15 24 17 (NNE) 1769 clear none 01:00 43 -18 16 23 (NNE) 1208 clear none 02:00 38 -14 20 72 (ENE) 1865 clear none 03:00 35 -5 21 77 (ENE) 4968 clear dust 04:00 33 -1 20 64 (ENE) 5396 clear dust 05:00 32 1 15 59 (ENE) 5378 clear none 06:00 29 2 13 71 (ENE) 4200 clear none Note: the wind was coming from the azimuth listed. The convention used is north=0 degrees, east=90 degrees. The dust count is particles > 1u per 0.1 cubic feet. ---------- TELESCOPE SOFTWARE ---------- Current TCC version: 1.4.2 Current HUB version: v20171231_01 Current TUI version: 2.6.0