Subject: 3.5m Night Log 20230915 From: cgray@apo.nmsu.edu Date: Sat, 16 Sep 2023 13:52:52 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Friday, September 15, 2023 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- NM07 D.Bizyaev D.Bizyaev UW03 P.Yoachim P.Yoachim NM01 C.Gray C.Gray ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- NM07 KOSMOS 19:49 01:06 UW03 kosmos 01:06 03:49 NM01 Echelle 03:55 06:42 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- NM07/R 19:18 01:10 0 0 0 0 5.4 0.4 0 0 UW03/R 01:10 04:05 0 0 0 0 2.9 0.0 0 0 NM01/R 04:05 06:39 0 0 0 0 2.6 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: C.Gray Even though storms were predicted, the weather was beautiful tonight! Clear with good seeing, even approaching near site limit. Then the winds shifted. And the humidity went up. But the clouds skimmed the mountain and never appeared over us! Even better, kosmos had no issues with the turret tonight. I informed UW03 to turn the grism wheel in the negative direction and, maybe that helped! No problems 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 -------------------------------------------------------------------------- 18:59 kosmos 559( 1700) 98 48 13.8 16.6 15.8 16.3 14.8 — 1.29 20:53 kosmos 309( 1339) 51 43 14.0 14.2 14.3 13.7 13.9 — 1.24 00:08 kosmos 362( 1316) 52 62 12.3 12.8 13.5 12.6 12.9 — 1.11 02:59 ecamera 343( 240) 66 46 12.2 11.8 12.6 11.7 11.9 ND3 0.77 03:18 ecamera 312( 199) 83 17 11.5 11.7 12.4 11.4 11.7 ND3 2.22 04:11 ecamera 337( 179) 75 28 9.3 11.0 11.7 10.8 10.5 ND4 2.26 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 66 39 14 243 (WSW) 511 mstly clr none 17:00 65 38 7 269 (W) 485 mstly clr none 18:00 63 38 9 273 (W) 514 clear none 19:00 58 38 0 223 (SW) 483 clear none 20:00 57 38 3 342 (NNW) 490 clear none 21:00 57 38 6 336 (NNW) 523 clear none 22:00 57 38 8 271 (W) 550 clear none 23:00 57 37 8 279 (W) 541 clear none 00:00 56 39 5 261 (W) 553 clear none 01:00 55 39 5 262 (W) 519 clear none 02:00 55 38 5 1 (N) 521 clear none 03:00 55 38 1 298 (WNW) 498 clear none 04:00 54 38 6 189 (S) 537 clear none 05:00 53 44 7 142 (SE) 817 clear none 06:00 50 43 2 129 (SE) 947 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: 3.1.3beta0