Subject: 3.5m Night Log 20220422 From: dembicky@apo.nmsu.edu Date: Sat, 23 Apr 2022 12:29:43 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Friday, April 22, 2022 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- NM02 J.Burchett P.Holguin, E.Aguirre, S.Kusmic UW01 S.Hawley J.Wisniewski ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- NM02 KOSMOS --:-- --:-- UW01 ARCTIC 02:10 05:56 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- NM02/R 19:47 01:10 5.4 0 0 0 0.0 0.0 0 0 UW01/R 01:10 06:16 1.0 0 0 0 0.2 3.9 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: J.Dembicky Checked out DIS spectra tonight. Looks fine. Wind finally dropped around midnight and dust looked like it was dropping as well and dropped below 6000cts outside. In a matter of a minute or two the dust unexpectedly spiked to over 25000 cts, even with the winds now subsiding. This made me a little more cautious later, for the 2nd program, with the outside dust. No problems tonight, just wind first half, and dust, and elevated dust 2nd half. ------- 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 -------------------------------------------------------------------------- 02:27 arctic -103( 504) 38 62 5.4 7.6 10.7 7.0 6.8 SDSS_i 2.20 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 63 11 31 229 (SW) 6610 clear dust 17:00 64 10 22 195 (SSW) 19664 clear dust 18:00 63 9 35 258 (WSW) 21586 clear dust 19:00 58 13 34 223 (SW) 20480 clear dust 20:00 55 14 45 234 (SW) 24316 clear dust 21:00 53 17 35 207 (SSW) 24927 mstly clr dust 22:00 52 15 43 212 (SSW) 22435 mstly clr dust 23:00 49 14 22 239 (WSW) 15498 mstly clr dust 00:00 47 18 18 279 (W) 25895 mstly clr dust 01:00 43 23 8 275 (W) 10256 clear dust 02:00 42 23 25 287 (WNW) 5006 clear dust 03:00 41 22 28 293 (WNW) 4649 clear dust 04:00 40 22 24 263 (W) 4572 clear dust 05:00 39 21 31 278 (W) 4379 clear dust 06:00 39 21 19 284 (WNW) 4501 clear dust 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: 2.6.0