Subject: 3.5m Night Log 20240221 From: ajt@apo.nmsu.edu Date: Thu, 22 Feb 2024 13:44:52 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Wednesday, February 21, 2024 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- GS02 D.Gies K.Shepard EN01 B.Ketzeback R.McMillan,A.Townsend ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- GS02 ECHELLE --:-- --:-- EN01 DIS --:-- --:-- EN01 NA2GDR 00:05 04:10 EN01 ECHELLE 04:10 04:20 EN01 ARCTIC 04:34 06:20 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- GS02/R 18:02 22:00 0 4.0 0 0 0.0 0.0 0 0 EN01/W 22:00 06:31 0 2.2 0 0 0.5 5.8 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: A.Townsend At checkout, had to restart gcam nubs. We had high winds (gusts up to 50mph) in the afternoon that brought in a big dust storm (max of about 30,000 1-micron counts). We were closed until midnight. Seeing was all over the place once we did open! Engineering tasks: - Restarted axis controllers - Zeroed NA2 rotator (-0.054) - Changed DIS grating back from R830 to R300 - Checked DIS contamination - Pointing Model (implemented) and checked on NA2 and NA1 - Twisted TUI testing - Echelle IOL monitoring - More throughput (SA104, SA109, SA107, G163 in ugr) Motion error alt 2024-02-22 07:09:26 slewing from 75 to 75.8 at 75.7. Had to do gmech parameters to reload filter list on gcam. ------- 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 -------------------------------------------------------------------------- 00:26 guider 119( 647) 108 79 1.8 1.8 4.8 2.2 1.9 R 4.80 04:14 ecamera 418( -301) -3 79 -0.6 -0.2 0.5 -0.4 -0.5 ND2 0.95 04:41 arctic 406( 789) 24 55 -0.9 -0.5 0.2 -0.8 -0.8 SDSS_g 1.77 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 46 6 38 265 (W) 6799 clear dust 17:00 45 8 19 260 (W) 27819 clear dust 18:00 42 7 20 271 (W) 18201 mstly clr dust 19:00 41 8 24 282 (WNW) 4257 mstly clr dust 20:00 39 11 22 286 (WNW) 24296 mstly clr dust 21:00 39 12 17 263 (W) 13471 mstly clr dust 22:00 38 10 16 268 (W) 8341 mstly clr dust 23:00 37 11 20 267 (W) 5858 mstly clr dust 00:00 35 11 23 273 (W) 2798 mstly clr none 01:00 34 12 18 271 (W) 1362 clear none 02:00 33 16 20 293 (WNW) 1250 clear none 03:00 33 16 8 265 (W) 1020 clear none 04:00 32 15 10 338 (NNW) 941 clear none 05:00 31 15 12 357 (N) 913 clear none 06:00 33 15 13 349 (N) 387 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: 3.1.3