Subject: 3.5m Night Log 20240310 From: mcmillan@apo.nmsu.edu Date: Mon, 11 Mar 2024 12:58:31 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Sunday, March 10, 2024 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- WY04 M.Brotherton M.Brotherton BY01 E.Hintz T.Morrell UW02 P.Yoachim P.Yoachim UW05 C.Chandler C.Chandler ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- WY04 TSPEC 19:19 20:47 BY01 TSPEC 20:48 21:58 UW02 KOSMOS 22:15 00:56 UW05 ARCTIC 01:12 06:34 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- WY04/R 19:16 20:46 0 0 0 0 0.9 0.6 0 0 BY01/R 20:46 22:10 0 0 0 0 1.4 0.0 0 0 UW02/R 22:10 01:10 0 0 0 0 3.0 0.0 0 0 UW05/R 01:10 07:09 0 0 0 0 6.0 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: R.McMillan A nice clear night with variable seeing and no snow on the roof. Everything worked well in the important ways, but we are watching some struggling ion pumps for ARCTIC and DIS blue. So far they are maintaining temperature so the vacuums can't be really soft. ------- 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 -------------------------------------------------------------------------- 18:31 tcamera 511( 1223) -24 61 0.2 3.4 2.5 3.9 2.0 Ks 1.43 21:24 kosmos 350( 711) -178 48 0.7 0.0 0.7 -0.2 0.1 - 0.85 03:35 arctic 401( 792) 337 48 0.0 -0.4 0.1 -0.5 -0.1 VR 0.89 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 40 11 5 222 (SW) 240 clear none 17:00 40 11 9 270 (W) 262 clear none 18:00 38 10 8 256 (WSW) 287 clear none 19:00 35 8 7 266 (W) 257 clear none 20:00 32 7 7 300 (WNW) 260 clear none 21:00 33 17 6 273 (W) 206 clear none 22:00 32 15 8 311 (NW) 660 clear none 23:00 33 13 6 270 (W) 240 clear none 00:00 33 13 4 255 (WSW) 245 clear none 01:00 32 13 7 199 (SSW) 290 clear none 02:00 32 11 12 208 (SSW) 1163 clear none 03:00 32 14 13 222 (SW) 1474 clear none 04:00 32 15 11 231 (SW) 1448 clear none 05:00 32 16 11 229 (SW) 1397 clear none 06:00 32 17 8 256 (WSW) 1410 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