Subject: 3.5m Night Log 20210827 From: ajt@apo.nmsu.edu Date: Sat, 28 Aug 2021 12:55:01 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Friday, August 27, 2021 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- WY02 M.Brotherton J.McLane NM03 A.Hedlund A.Hedlund NM04 E.Nielsen E.Nielsen,H.Gallamore ACTUAL PROG INSTRUMENT START FINISH -------------------------------------------------------------------- WY02 TSPEC --:-- --:-- NM03 ECHELLE 21:07 23:00 NM03 ECHELLE 00:40 01:05 NM04 ECHELLE 03:16 06:27 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- WY02/R 19:42 20:52 1.2 0 0 0 0.0 0.0 0 0 NM03/R 20:52 01:10 0.3 1.7 0 0 1.5 0.8 0 0 NM04/R 01:10 06:27 0 2.1 0 0 0.0 3.2 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: A.Townsend,R.McMillan During checkout I had to restart the stripchart mac because it was frozen. The night started off with clouds and radar, so we weren't able to open up for the first program. Both radar and clouds cleared up around 21:00, so we started NM03 a little late. Closed at 23:00 due to very thick clouds partly as a precaution due to outflows from storm to the north--around 00:00 clouds start to thin but there were still radar returns nearby. We re-opened at 00:40, but closed again at 01:05 due to new and different radar returns. Radar clear by 3:15, opened up to good seeing and mostly clear skies. We were able to stay open for the remainder of the 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 -------------------------------------------------------------------------- 20:13 ecamera 809( 383) 131 76 14.4 15.5 15.4 15.3 15.4 ND1 1.02 02:22 ecamera 649( 125) 318 60 13.4 13.3 13.7 13.3 13.2 ND3 0.71 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 60 41 7 85 (E) 864 cloudy lt rain 17:00 61 45 7 72 (ENE) 443 mstly cldy none 18:00 60 49 9 87 (E) 866 mstly cldy none 19:00 58 50 10 101 (E) 1464 mstly cldy lt rain 20:00 58 47 14 128 (SE) 1344 ptly cldy none 21:00 58 47 10 116 (ESE) 1449 mstly clr none 22:00 58 47 4 109 (ESE) 1567 ptly cldy none 23:00 60 46 5 194 (SSW) 1399 cloudy none 00:00 59 47 5 242 (WSW) 1663 mstly cldy none 01:00 58 48 11 146 (SE) 1712 ptly cldy none 02:00 57 42 10 160 (SSE) 1568 mstly clr none 03:00 57 46 14 137 (SE) 1558 mstly clr none 04:00 57 46 15 133 (SE) 1630 mstly clr none 05:00 56 46 11 127 (SE) 1638 mstly clr none 06:00 55 47 9 158 (SSE) 1739 mstly clr 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