Subject: 3.5m Night Log 20250628 From: tsutherland@apo.nmsu.edu Date: Sun, 29 Jun 2025 11:56:46 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Saturday, June 28, 2025 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- DD02 A.Townsend A.Townsend UW02 P.Yoachim Z.Xu UW08 S.Hawley S.Hawley UW01 S.Hawley G.Tovar ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- DD02 ECHELLE --:-- --:-- UW02 KOSMOS --:-- --:-- UW08 ECHELLE --:-- --:-- UW01 ARCTIC 01:30 05:26 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- DD02/R 20:24 21:24 0 1.0 0 0 0 0 0 0 UW02/R 21:24 23:10 0 1.8 0 0 0 0 0 0 UW08/R 23:10 01:30 0 0 2.3 0 0 0 0 0 UW01/R 01:30 05:49 0 0 0 0 4.3 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: T.Sutherland,A.Townsend Dataq needed restarting at checkout, and again before we opened. UW02 decided to call it quits for the night by the time we were able to open, so UW08 got to start about 20 minutes early. Echelle guider had very high background noise with the clear filter, and no clouds or moon. Turns out pointing was off by nearly an arcmin. See email that was sent out for more details. Checked pointing this morning and it seemed alright. Thanks Amanda for the help fixing the problem! Once the pointing got fixed, everything thankfully went smoothly. ------- FAILURE LOG ------- FAILURE MODE TIME PROG INSTR TI/SHU START FINISH DESCRIPTION ---------------------------------------------------------------------- UW08 ECHELLE T/H 23:10 01:30 Telescope pointing issue ---------------- FOCUS LOG --------------- Time Instrument Focus Az El Temp Strc Prim Sec Air filt FWHM -------------------------------------------------------------------------- 22:58 ecamera 463( 558) 157 58 16.4 16.9 17.6 16.9 16.4 clear 1.55 01:32 arctic 258( 1369) 29 63 14.7 15.1 15.7 14.7 14.8 SDSS_z 1.05 02:20 arctic 305( 1397) 61 30 13.3 14.1 14.9 13.8 13.3 SDSS_z 1.62 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 58 42 9 92 (E) 619 mstly cldy lt rain 17:00 64 41 6 101 (E) 714 mstly cldy lt rain 18:00 67 43 3 319 (NW) 729 mstly cldy lt rain 19:00 67 48 7 250 (WSW) 996 mstly cldy none 20:00 62 46 3 126 (SE) 1011 ptly cldy none 21:00 62 40 2 94 (E) 786 ptly cldy none 22:00 61 42 9 73 (ENE) 926 mstly clr none 23:00 61 39 12 35 (NE) 882 mstly clr none 00:00 62 41 4 277 (W) 948 mstly clr none 01:00 60 42 2 259 (W) 1125 mstly clr none 02:00 57 41 3 127 (SE) 814 mstly clr none 03:00 55 44 4 103 (ESE) 593 mstly clr none 04:00 57 43 2 188 (S) 636 mstly clr none 05:00 58 41 3 195 (SSW) 579 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: 3.1.8