Subject: 3.5m Night Log 20230908 From: dembicky@apo.nmsu.edu Date: Sat, 09 Sep 2023 09:01:29 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Friday, September 08, 2023 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- UW04 J.Hughes J.Hughes, K.Covey, K.Devine, A.Korra, J.Elias, A.Panova, K.Gollnick, S.McAdam OU02 A.Moss A.Moss ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- UW04 KOSMOS 19:27 01:14 OU02 KOSMOS 01:22 06:35 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- UW04/R 19:27 01:10 0 0 0 0 5.7 0.0 0 0 OU02/R 01:10 06:35 0 0 0 0 0.3 5.1 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: J.Dembicky I did see two slips in alt when doing my test slews. They were quick and I didn't get the alt (around 58 deg I think on the down one, and there was one going up) Disperser wheel stuck moving. I followed the wiki and that fixed it. Disperser wheel stuck moving (to red) again. The instrument was inverted (same as previous stickage). When we went to move to an empty slot and then back to red it stuck again (instrument still inverted). Lots of oscillation on AZ error on Dataq tonight. Maybe somebody has it turned up but range looked similiar to Alt. We saw a few slips in the Alt. Russet was online at the time ss well when they occured. No other telescope issues. ------- 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 -------------------------------------------------------------------------- 20:15 kimage 275( 1605) 83 48 20.1 20.6 20.9 20.2 20.5 -- 0.72 20:19 NA2gdr -1259(30740) 82 49 20.6 20.6 20.9 20.1 20.4 clear 1.19 22:39 kimage 300( 1535) 32 74 18.9 18.9 19.6 18.8 18.8 -- 0.65 01:35 khigh 300( 1496) 72 57 18.1 17.9 18.6 17.7 18.1 -- 1.16 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 71 32 5 99 (E) 560 mstly cldy lt rain 17:00 70 35 7 88 (E) 614 mstly cldy lt rain 18:00 68 35 8 89 (E) 619 ptly cldy none 19:00 69 31 6 92 (E) 567 ptly cldy none 20:00 68 30 1 191 (S) 572 mstly clr none 21:00 68 31 5 100 (E) 769 clear none 22:00 66 31 10 101 (E) 880 clear none 23:00 66 30 11 91 (E) 1169 clear none 00:00 66 30 12 82 (E) 1257 clear none 01:00 66 28 11 84 (E) 1234 clear none 02:00 63 31 14 79 (E) 1338 clear none 03:00 61 41 15 74 (ENE) 3024 clear none 04:00 62 43 10 63 (ENE) 3341 clear none 05:00 63 32 4 329 (NNW) 1443 clear none 06:00 63 32 5 274 (W) 1141 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: 3.1.3beta0