Subject: 3.5m Night Log 20210616 From: cgray@apo.nmsu.edu Date: Thu, 17 Jun 2021 12:06:41 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Wednesday, June 16, 2021 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- WY02 A.Cavanaugh A.Cavanaugh UW02 P.Yoachim P.Yoachim, J.Jian ACTUAL PROG INSTRUMENT START FINISH -------------------------------------------------------------------- WY02 TSPEC 20:22 01:01 UW02 ARCTIC 01:16 05:45 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- WY02/R 20:22 01:10 0 0 0 0 0.1 4.7 0 0 UW02/R 01:10 05:46 0 0 0 0 4.6 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: C.Gray There was a motion error around 67 deg when slewing down from 80 deg during checkout. Another error during B half at 59.7 when slewing from 66 2021-06-17 07:12:24 .tcc.0 0 tcc w BadAltStatus; AltStat=59.767525,-0.000000,5130630744.60000,0x00006001; AltDTime=0.12 I was noticing some slips at 30 and 58ish. An axis init solved the motion errors each time. The weather was clear nearly the entire night with moderate seeing. The pollen was a little high but still not as bad as a few days ago and the humidity stayed low. But I see I entered the seeing into the focus log for UW02 as 1.67" (focus of 477), but didn't hit enter. ------- 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 -------------------------------------------------------------------------- 20:28 tcamera 426( 1537) 37 36 17.6 19.9 20.2 19.3 18.0 MKs 1.43 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 74 40 7 195 (SSW) 1451 mstly clr none 17:00 76 38 9 268 (W) 1210 mstly clr none 18:00 73 36 3 353 (N) 1069 ptly cldy none 19:00 69 36 3 89 (E) 1152 mstly clr none 20:00 65 36 7 99 (E) 1482 clear none 21:00 62 31 12 99 (E) 1656 clear none 22:00 60 30 16 87 (E) 1566 clear none 23:00 59 31 20 113 (ESE) 1555 clear none 00:00 58 31 24 120 (ESE) 1311 clear none 01:00 57 34 24 126 (SE) 1224 clear none 02:00 56 31 11 108 (ESE) 1119 clear none 03:00 55 24 17 123 (ESE) 1201 clear none 04:00 57 30 7 111 (ESE) 1006 clear none 05:00 56 32 9 106 (ESE) 1026 clear none 06:00 54 32 7 86 (E) 1054 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