Subject: 3.5m Night Log 20230603 From: ajt@apo.nmsu.edu Date: Sun, 4 Jun 2023 12:06:30 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Saturday, June 03, 2023 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- NM08 E.Nielsen E.Nielsen,A.Smith NM01 A.Hedlund A.Hedlund UW09 B.Morris L.Hebb ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- NM08 ECHELLE --:-- --:-- NM01 ECHELLE 23:25 01:06 UW09 ECHELLE 04:48 05:28 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- NM08/R 20:16 22:43 0 2.4 0 0 0.0 0.0 0 0 NM01/R 22:43 01:10 0 0.7 0 0 0.0 1.8 0 0 UW09/R 01:10 05:47 0 3.6 0 0 0.0 1.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: A.Townsend Virga/radar nearby in the afternoon and most of A-half, the rain alarm went off a few times after 20:00 but we didn't get much actual precipitation. Both Holloman and El Paso radars went offline around 22:30, but the radar was improving and the clouds cleared up so we opened at 23:30. By a little after 01:00 we were completely overcast with radar approaching from the east, so given the lack of nearby radar monitoring and the ominous clouds (that we weren't getting much through anymore) we closed up. We got a few raindrops after 02:00. The radar stations both came back online around 03:30 but there were still clouds and radar lingering for another hour. We opened again with about an hour left before sunrise when everything cleared up, with our weather coming from the west again instead of the east, and subarcsecond seeing. ------- 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 -------------------------------------------------------------------------- 23:34 ecamera 158( -256) 124 35 12.0 13.1 13.9 13.1 12.2 Clear 1.31 04:55 ecamera 200( -375) 236 71 11.3 10.2 11.1 10.2 10.4 ND2 0.88 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 66 28 12 263 (W) 2891 ptly cldy none 17:00 66 25 15 245 (WSW) 2025 ptly cldy none 18:00 64 26 17 275 (W) 2387 ptly cldy none 19:00 59 25 15 273 (W) 2450 mstly cldy none 20:00 56 32 10 347 (NNW) 2697 mstly cldy none 21:00 54 33 15 55 (NE) 3340 mstly cldy none 22:00 53 33 14 72 (ENE) 2945 mstly cldy none 23:00 55 30 10 63 (ENE) 2364 mstly cldy none 00:00 54 31 14 59 (ENE) 2376 ptly cldy none 01:00 52 32 15 83 (E) 2479 cloudy none 02:00 49 32 25 73 (ENE) 2660 cloudy lt rain 03:00 48 34 8 44 (NE) 2348 ptly cldy none 04:00 53 28 1 144 (SE) 2360 mstly clr none 05:00 53 29 1 232 (SW) 2366 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: 3.1.1