Subject: 3.5m Night Log 20240901 From: ajt@apo.nmsu.edu Date: Mon, 2 Sep 2024 14:12:27 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Sunday, September 01, 2024 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- JH01 Z.Rustamkulov G.Wang,C.Wang AP02 S.Merkowitz R.McMillan NM06 A.Peck A.Peck,B.Roberson ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- JH01 ARCTIC 19:31 22:43 AP02 APOLLO 22:43 23:28 NM06 ECHELLE --:-- --:-- PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- JH01/R 19:36 22:23 0 0 0 0 2.8 0.0 0 0 JH01/R/D 22:23 22:43 0 0 0 0 0.3 0.0 0 0 AP02/W 22:43 01:10 1.7 0 0 0 0.8 0.0 0 0 NM06/R 01:10 06:31 4.9 0.4 0 0 0.0 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: T.Sutherland,A.Townsend Fiducial error in az at 18:43, during the second test slew. Opened at sunset. Arcsat needed a software reboot twice due to a library support error. AP02 donated 20 minutes to JH01 due to bad seeing. Closed at 11:25pm due to incoming radar and worsening clouds. We got a little bit of rain! And then a lot of humidity. We were unable to open, and gave up around 05:30. ------- 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 -------------------------------------------------------------------------- 20:03 arctic 593( 1575) 91 48 11.3 12.2 12.9 11.8 11.4 SDSS_i 2.36 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 56 41 11 64 (ENE) 725 mstly cldy none 17:00 56 37 10 90 (E) 665 mstly cldy none 18:00 55 43 17 83 (E) 880 mstly cldy none 19:00 54 43 12 44 (NE) 929 mstly clr none 20:00 53 43 17 112 (ESE) 821 mstly clr none 21:00 52 42 18 72 (ENE) 1302 mstly clr humid 22:00 52 44 20 81 (E) mstly clr humid 23:00 52 45 21 86 (E) cloudy humid 00:00 51 46 21 77 (ENE) cloudy humid 01:00 52 47 20 78 (ENE) cloudy rain 02:00 48 47 15 67 (ENE) cloudy rain 03:00 50 48 13 100 (E) cloudy humid 04:00 49 47 18 83 (E) cloudy humid 05:00 49 47 26 56 (NE) cloudy humid 06:00 49 47 10 65 (ENE) cloudy humid 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: 3.1.5