Subject: 3.5m Night Log 20210625 From: decolib@apo.nmsu.edu Date: Sat, 26 Jun 2021 11:34:30 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Friday, June 25, 2021 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- JH03 H.Reggiani H.Reggiani JH01 Z.Rustamkulov Z.Rustamkulov NM08 E.Nielsen E.Nielsen,A.Smith ACTUAL PROG INSTRUMENT START FINISH -------------------------------------------------------------------- JH01 ARCTIC 20:18 20:45 JH03 ECHELLE 20:48 21:50 JH01 ARCTIC 21:57 01:09 NM08 ECHELLE 01:16 05:08 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- JH03/R 20:24 21:30 0 0 0 0 1.1 0.0 0 0 JH01/R 21:30 01:10 0 0 0 0 0.1 3.6 0 0 NM08/R 01:10 05:48 0 0 0 0 0.0 4.6 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: D.DeColibus We had a couple instances of the tertiary failing to clamp properly after rotating from NA1 to NA2: once during afternoon checkout, and once around 22:00. In both cases, I verified the tertiary position, logged into talk2boxes, put the clamp in manually following the instructions on the wiki, logged out, then used >telmech status to remind TUI of where the tertiary was. I had to do the same process a third time at switchover to B half, when switching from NA2 to NA1. JH01 needed sky flats in u', but as their program time did not begin until well after the sky would be too dark to get them, they agreed to make a time swap with JH03- we started the night with sky flats, switched to JH03 to observe their program, then switched back to JH01 afterwards. Everyone got their time on sky, it just shuffled around a bit. We had a short band of clouds pass by between 23:30 and 00:00. Otherwise, it was clear all night. ------- 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 -------------------------------------------------------------------------- 20:51 ecamera 454( 221) 82 74 18.2 19.6 20.0 18.9 18.3 ND1 0.89 01:19 ecamera 513( 142) 257 62 16.3 16.5 17.2 16.4 16.3 ND2 1.03 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 71 36 15 239 (WSW) 1464 ptly cldy none 17:00 74 36 25 252 (WSW) 1412 mstly clr none 18:00 73 35 22 247 (WSW) 2092 clear none 19:00 70 32 22 269 (W) 1659 clear none 20:00 67 31 14 259 (W) 1489 clear none 21:00 64 30 11 251 (WSW) 1266 clear none 22:00 65 31 17 246 (WSW) 1157 clear none 23:00 65 30 13 258 (WSW) 1190 ptly cldy none 00:00 63 29 17 274 (W) 1140 clear none 01:00 62 30 13 291 (WNW) 1718 clear none 02:00 61 29 9 341 (NNW) 1375 clear none 03:00 62 29 10 11 (N) 1298 clear none 04:00 61 30 15 20 (NNE) 1228 clear none 05:00 62 29 15 33 (NNE) 987 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: 2.6.0