Subject: 3.5m Night Log 20200730 From: cgray@apo.nmsu.edu Date: Fri, 31 Jul 2020 11:29:38 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Thursday, July 30, 2020 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- GS02 S.Lepine N.Hejazi EN01 B.Ketzeback C.Gray, R.McMillan ACTUAL PROG INSTRUMENT START FINISH -------------------------------------------------------------------- GS02 ECHELLE 20:11 00:35 EN01 X --:-- --:-- PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- GS02/R 20:11 01:10 0 0.6 0 0 0.0 5.0 0 0 EN01/W 01:10 06:08 2.9 2.1 0 0 0.0 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: C.Gray dcam red needed restart during checkout. The weather cleared up well enough just around sunset, though there were random stray clouds all night. Seeing was poor all of A half, getting upwards of 3" when the outflow of a storm hit up, driving up the winds. We closed at 00:35 when wind speeds were starting to gust near 40 mph. Then came the humidity. By dawn it was nearly fog and we were not able to reopen. Regardless, we were able to get a lot of engineering done. I was able to bring the arctic quad back when CSS started reading out the arctic temperatures again. And as soon as I started warming the temperatures stopped reading out in CSS. So, I took a trip up intermediate level and waited until the the CCD reached set point and power cycled arctic. TL;DR Engineering: - reset tcc - rest az, alt - zeroed rotator (off by 1.90) - Russet checked DIS focus - Russet checked NICFPS rotation vs bad readout - warmed arctic and brought back quad - Took pictures of the mirror covers from the NA2 port at different altitudes (see follow up email) - Took pictures of the mirror covers with arctic at different altitudes Side note: I was going to try and sneak some quick pictures of Saturn, Jupiter, Mars, Venus, etc as well as Mars2020 (David sent me an ephemeris file and apparently it's moving slow enough that we can track it) but the stupid humidity kept us closed. So, no Sky Candy 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 -------------------------------------------------------------------------- 20:33 ecamera 387( 297) 207 39 20.9 22.2 22.3 21.8 21.1 Clear 1.78 20:51 ecamera 355( 240) 207 37 20.1 21.6 21.9 21.3 20.4 Clear 2.15 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 75 37 2 205 (SSW) 447 mstly cldy none 17:00 73 39 5 89 (E) 419 mstly cldy none 18:00 73 37 11 65 (ENE) 459 ptly cldy none 19:00 71 37 14 72 (ENE) 499 ptly cldy none 20:00 70 37 9 58 (ENE) 569 mstly clr none 21:00 68 37 16 86 (E) 543 mstly clr none 22:00 68 37 18 70 (ENE) 495 mstly clr none 23:00 66 37 20 72 (ENE) 619 mstly clr none 00:00 64 34 31 63 (ENE) 945 mstly clr humid 01:00 58 33 28 63 (ENE) 1619 mstly clr humid 02:00 57 31 34 75 (ENE) 1037 mstly clr humid 03:00 55 29 25 70 (ENE) 935 mstly clr humid 04:00 55 27 20 72 (ENE) mstly clr humid 05:00 54 29 20 67 (ENE) 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: 1.2.4 Current HUB version: v20171231_01 Current TUI version: 2.6.0