Subject: 3.5m Night Log 20230830 From: ajt@apo.nmsu.edu Date: Thu, 31 Aug 2023 12:11:23 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Wednesday, August 30, 2023 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- NM03 A.Hedlund A.Hedlund AP01 S.Merkowitz R.McMillan UW03 P.Yoachim P.Yoachim ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- NM03 ECHELLE 19:39 00:08 AP01 APOLLO 00:31 01:23 UW03 KOSMOS 01:37 05:10 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- NM03/R 19:39 00:10 0 0 0 0 0.0 4.5 0 0 AP01/R 00:10 01:10 0 0 0 0 0.0 1.0 0 0 UW03/R 01:10 06:29 0 0 0 0 0.0 5.3 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: A.Townsend Dataq froze twice tonight and I had to power cycle it on hub35m. APOLLO pointing was off by about 100 arcseconds, but that might have been an azimuth drive position error, since after finishing with APOLLO there was a large fiducial error of a similar magnitude that was corrected. UW03 donated a little time to AP01 due to tertiary rotations, and finished when the sky started getting too bright. We had a few clouds at the start of the night but otherwise very clear weather! ------- 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 -------------------------------------------------------------------------- 19:49 ecamera 476( 533) 118 70 15.1 16.2 16.2 15.8 15.6 ND3 0.72 20:42 ecamera 416( 409) 134 70 13.7 14.8 15.4 14.6 14.2 Clear 0.88 00:53 APOLLO 350( 2124) -12 40 14.0 14.4 15.0 14.1 14.3 530 1.10 01:52 kosmos 345( 1362) -53 61 14.8 14.2 14.8 13.9 14.4 -- 1.41 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 64 49 4 257 (WSW) 605 mstly cldy none 17:00 64 49 6 238 (WSW) 579 mstly cldy none 18:00 62 48 2 101 (E) 558 mstly clr none 19:00 60 50 8 105 (ESE) 1091 mstly clr none 20:00 59 49 7 101 (E) 1044 clear none 21:00 57 48 11 92 (E) 1237 clear none 22:00 57 48 9 66 (ENE) 1299 clear none 23:00 61 47 9 43 (NE) 691 clear none 00:00 61 45 5 37 (NE) 691 clear none 01:00 58 47 3 322 (NW) 822 clear none 02:00 58 46 5 265 (W) 774 clear none 03:00 58 46 5 267 (W) 912 clear none 04:00 58 45 7 322 (NW) 811 clear none 05:00 57 45 8 314 (NW) 997 clear none 06:00 57 45 9 340 (NNW) 1017 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