Subject: 3.5m Night Log 20250703 From: cgray@apo.nmsu.edu Date: Fri, 4 Jul 2025 11:19:53 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Thursday, July 03, 2025 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- NM01 S.Ho S.Ho NM07 W.Roberson E.Nielsen ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- NM01 KOSMOS 21:51 23:36 NM07 ECHELLE --:-- --:-- PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- NM01/R 20:24 01:10 0 3.0 0 0 0.0 1.8 0 0 NM07/R 01:10 05:52 0 0 0 0 4.5 0.2 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: C.Gray Well, I guess it's a surprise we were able to open at all tonight. I thought it would be rain the whole way through but we were able to open a little before 10pm. The humidity was high but was consistently below closure and we were able to get over an hour of data. Then the rain did come, which is good because we need it to help the forest. However, while the clouds cleared, the humidity did not and NM07 was not able to observe. No problems tonight. ------- 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 -------------------------------------------------------------------------- 22:19 kosmos 212( 1312) 216 80 15.3 17.2 16.6 16.9 16.0 -- 1.98 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 63 53 10 269 (W) ptly cldy none 17:00 65 53 7 268 (W) 412 ptly cldy none 18:00 64 52 12 286 (WNW) 421 ptly cldy none 19:00 61 51 11 299 (WNW) 450 mstly clr none 20:00 61 52 7 262 (W) clear humid 21:00 59 53 5 264 (W) mstly cldy none 22:00 59 53 9 232 (SW) mstly cldy none 23:00 60 52 8 237 (WSW) cloudy none 00:00 60 51 9 221 (SW) cloudy none 01:00 54 53 13 16 (NNE) cloudy lt rain 02:00 56 51 11 294 (WNW) 2671 mstly cldy lt rain 03:00 57 50 3 324 (NW) clear humid 04:00 56 50 3 334 (NNW) mstly clr humid 05:00 54 51 2 333 (NNW) mstly clr 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: 3.1.8