Subject: 3.5m Night Log 20210623 From: ajt@apo.nmsu.edu Date: Thu, 24 Jun 2021 12:07:56 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Wednesday, June 23, 2021 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- EN01 B.Ketzeback A.Townsend,J.Dembicky UW02 P.Yoachim J.Jiang ACTUAL PROG INSTRUMENT START FINISH -------------------------------------------------------------------- EN01 DIS --:-- --:-- UW02 ARCTIC 03:55 05:32 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- EN01/W 20:24 02:30 0 6.1 0 0 0.0 0.0 0 0 UW02/R 02:30 05:48 0 0 0 0.2 0.1 3.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: A.Townsend,J.Dembicky Tertiary failed to clamp when rotating it, fixed with talk2boxes direct commands. Mirror covers (which opened and closed at the start of checkout) did not close after doing test slews; fixed with hub startNubs telmech. Due to clouds and radar returns we did not open the dome during Engineering. Engineering Tasks: - Tested ARCTIC flats script & fixed it - DIS Pinholes contamination measurements - Testing different gains for tracking oscillations with Bill - Lone Worker Device training with Bill With only about an hour left of engineering time and non-ideal conditions for opening (due to relatively high dust and clouds) Amanda practiced un-mounting and mounting instruments for obs spec training. At 02:22, the altitude controller reset to zero, and we had to set the position. This might be related to the tracking tests? It was clear enough and the dust counts had gone back down by 2:30 am that we were able to open up! ------- FAILURE LOG ------- FAILURE MODE TIME PROG INSTR TI/SHU START FINISH DESCRIPTION ---------------------------------------------------------------------- UW02 ARCTIC T/S 02:22 02:43 Altitude controller reset to zero ---------------- FOCUS LOG --------------- Time Instrument Focus Az El Temp Strc Prim Sec Air filt FWHM -------------------------------------------------------------------------- 03:07 arctic 537( 1326) -121 41 17.4 17.6 18.4 17.5 17.2 SDSS_g 1.39 03:10 NA2gdr 3369(37369) -121 40 17.5 17.6 18.3 17.5 17.4 Clear 1.72 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 76 36 14 245 (WSW) 1937 mstly cldy none 17:00 73 37 9 217 (SW) 1594 ptly cldy none 18:00 73 36 16 200 (SSW) 1514 ptly cldy none 19:00 73 36 12 239 (WSW) 1319 ptly cldy none 20:00 68 32 13 253 (WSW) 1281 mstly cldy none 21:00 67 34 13 215 (SW) 1174 mstly cldy none 22:00 66 35 11 236 (SW) 1122 mstly cldy none 23:00 66 36 13 223 (SW) 1219 ptly cldy none 00:00 65 40 18 253 (WSW) 1365 ptly cldy dust 01:00 63 30 8 263 (W) 2225 mstly clr dust 02:00 63 31 15 315 (NW) 4015 mstly clr dust 03:00 63 31 5 351 (N) 1689 ptly cldy none 04:00 63 30 8 340 (NNW) 1608 ptly cldy none 05:00 62 29 4 312 (NW) 1783 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: 2.6.0