Subject: 3.5m Night Log 20240517 From: ajt@apo.nmsu.edu Date: Sat, 18 May 2024 11:35:43 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Friday, May 17, 2024 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- OU03 A.Moss A.Moss,M.Kilic UW06 S.Hawley K.Jones ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- OU03 ARCTIC 20:06 01:09 UW06 ECHELLE 01:14 05:03 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- OU03/R 20:06 01:10 0 0 0 0 0.0 5.1 0 0 UW06/R 01:10 05:53 0 0 0 0 2.5 2.2 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: A.Townsend Excellent weather, no telescope or instrument problems. ------- 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 -------------------------------------------------------------------------- 19:42 arctic 438( 1492) 141 68 13.4 14.0 13.9 13.2 12.8 BG40 1.00 00:23 ecamera 372( 220) 95 73 11.7 11.8 12.5 11.6 11.8 ND1 1.13 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 62 26 3 269 (W) 680 mstly clr none 17:00 63 25 8 272 (W) 733 mstly clr none 18:00 60 24 17 333 (NNW) 618 mstly clr none 19:00 60 26 7 308 (NW) 749 mstly clr none 20:00 57 26 5 265 (W) 711 clear none 21:00 56 27 9 237 (WSW) 756 clear none 22:00 57 26 15 216 (SW) 734 clear none 23:00 54 26 15 216 (SW) 971 clear none 00:00 55 25 16 232 (SW) 1298 clear none 01:00 55 24 8 196 (SSW) 1273 clear none 02:00 55 25 5 257 (WSW) 1335 clear none 03:00 57 24 5 271 (W) 1186 clear none 04:00 57 23 4 321 (NW) 1069 clear none 05:00 54 22 2 351 (N) 986 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: 3.1.5