Subject: 3.5m Night Log 20240223 From: dembicky@apo.nmsu.edu Date: Sat, 24 Feb 2024 13:48:52 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Friday, February 23, 2024 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- UV05 Y.Zhou J.Davidson, R.Wilson ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- UV05 DSSI 18:04 06:29 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- UV05/O 18:04 06:29 0 0 0 0 0.0 12.4 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: J.Dembicky Some pesky clouds to start the night but they went away by aroudn 20:00 and it was clear the rest of the night. No telescope issues tonight. ------- 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 -------------------------------------------------------------------------- 18:33 dssi 350( 1276) 190 63 2.1 4.8 4.4 4.3 3.1 692nm 1.30 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 39 19 8 313 (NW) 272 mstly cldy none 17:00 39 18 9 275 (W) 355 mstly cldy none 18:00 37 16 1 207 (SSW) 303 ptly cldy none 19:00 37 15 5 101 (E) 312 ptly cldy none 20:00 38 14 1 295 (WNW) 302 mstly clr none 21:00 36 8 10 342 (NNW) 304 clear none 22:00 36 -1 6 348 (NNW) 176 clear none 23:00 37 -4 3 334 (NNW) 158 clear none 00:00 38 -10 7 354 (N) 492 clear none 01:00 37 -13 7 347 (NNW) 518 clear none 02:00 35 -1 6 351 (N) 446 clear none 03:00 38 -5 3 318 (NW) 636 clear none 04:00 37 0 7 336 (NNW) 385 clear none 05:00 38 -2 3 250 (WSW) 693 clear none 06:00 38 -5 6 264 (W) 519 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