Subject: 3.5m Night Log 20220705 From: ajt@apo.nmsu.edu Date: Wed, 6 Jul 2022 13:05:02 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Tuesday, July 05, 2022 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- NM06 E.Nielsen H.Gallamore,A.Smith JH06 K.Worthen K.Worthen JH03 R.Angulo R.Angulo ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- NM06 ECHELLE 20:21 00:08 JH06 ECHELLE 00:09 00:55 JH03 ARCTIC 01:48 05:28 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- NM06/R 20:24 00:10 0 0 0 0 0.0 3.8 0 0 JH06/R 00:10 01:10 0 0 0.2 0 0.4 0.4 0 0 JH03/R 01:10 05:52 0 0 0.7 0 4.0 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: A.Townsend We had multiple secondary mirror resets tonight, and we re-homed the secondary before observing, then let it get stuck at an echelle-favorable position for A-half, but without the ability to focus. We re-homed again at changeover with the switch to ARCTIC and were able to focus before it started resetting again (multiple times). We continued to observe after that without collimation updates. We re-homed one last time at sunrise and the secondary is set for echelle again. I got disconnected from TUI at 23:12, but was able to immediately reconnect and nothing else seems to have been affected. It was very clear at the start of the night, but after 21:00 we started to get some thin clouds. Humidity and seeing/focus both got worse over B-half and then leveled off somewhere in the middle, but we were able to continue observing until dawn! ------- FAILURE LOG ------- FAILURE MODE TIME PROG INSTR TI/SHU START FINISH DESCRIPTION ---------------------------------------------------------------------- JH06 ECHELLE T/H 00:55 01:10 Re-homing Secondary JH03 ARCTIC T/H 01:10 01:48 Re-homing Secondary, continued ---------------- FOCUS LOG --------------- Time Instrument Focus Az El Temp Strc Prim Sec Air filt FWHM -------------------------------------------------------------------------- 01:13 arctic 393( 1373) 90 70 15.4 15.6 16.3 15.6 15.6 SDSS_r 0.85 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 69 47 9 270 (W) 609 clear none 17:00 72 44 12 263 (W) 441 clear none 18:00 67 38 7 273 (W) 524 clear none 19:00 67 44 4 266 (W) 660 clear none 20:00 64 45 5 264 (W) 657 clear none 21:00 63 44 2 240 (WSW) 746 mstly clr none 22:00 63 46 6 260 (W) 745 ptly cldy none 23:00 62 47 9 222 (SW) 804 ptly cldy none 00:00 62 48 11 218 (SW) 850 ptly cldy none 01:00 61 47 9 216 (SW) 841 ptly cldy none 02:00 57 49 10 186 (S) 962 ptly cldy none 03:00 57 48 6 164 (SSE) 907 ptly cldy none 04:00 59 47 7 186 (S) 1025 ptly cldy none 05:00 58 47 9 237 (WSW) 850 ptly cldy none 06:00 53 48 8 159 (SSE) 998 ptly cldy 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