Subject: 3.5m Night Log 20230905 From: cgray@apo.nmsu.edu Date: Wed, 6 Sep 2023 13:26:59 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Tuesday, September 05, 2023 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- WY02 M.Moe M.Moe UW07 B.Morris K.Jones AP01 S.Merkowitz R.McMillan ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- WY02 ECHELLE 19:31 01:08 UW07 ECHELLE 01:08 05:10 AP01 APOLLO 05:30 06:35 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- WY02/R 19:31 01:10 0 0 0 0 3.5 2.2 0 0 UW07/R 01:10 05:33 0 0 0 0 0.0 4.4 0 0 AP01/R 05:33 06:33 0 0 0 0 0.0 1.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: C.Gray We had a great night tonight!! Perfectly clear skies with *AMAZING* seeing, as low as 0.6"! everything was well behaved and I was able to move the tertiary in only about 20 min on this go around. 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 -------------------------------------------------------------------------- 19:48 ecamera 510( 820) 104 66 18.5 21.6 20.2 21.5 19.8 ND2 0.95 19:58 ecamera 482( 798) -64 36 17.9 21.2 20.0 21.8 19.4 ND3 1.15 21:39 ecamera 376( 576) -160 37 18.6 18.8 19.0 18.3 18.4 Clear 0.84 00:11 ecamera 304( 414) -122 53 18.1 17.1 17.8 16.7 17.5 Clear 0.98 01:13 ecamera 288( 386) -5 43 17.8 16.7 17.5 16.3 17.0 ND2 0.84 04:34 ecamera 337( 406) -67 69 16.5 16.4 17.4 16.3 16.5 clear 0.60 05:35 APOLLO 275( 2117) 80 45 16.8 16.0 16.7 15.7 16.1 530 0.90 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 73 32 8 265 (W) 427 clear none 17:00 72 31 14 241 (WSW) 398 clear none 18:00 72 28 9 266 (W) 338 clear none 19:00 70 24 7 260 (W) 296 clear none 20:00 65 18 6 294 (WNW) 256 clear none 21:00 65 28 4 268 (W) 389 clear none 22:00 65 30 6 253 (WSW) 422 clear none 23:00 64 30 3 242 (WSW) 451 clear none 00:00 64 30 4 257 (WSW) 458 clear none 01:00 65 28 2 243 (WSW) 423 clear none 02:00 63 28 4 266 (W) 506 clear none 03:00 64 27 2 328 (NNW) 483 clear none 04:00 64 27 2 308 (NW) 462 clear none 05:00 61 27 6 344 (NNW) 425 clear none 06:00 62 28 5 341 (NNW) 411 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