Subject: 3.5m Night Log 20200107 From: cgray@apo.nmsu.edu Date: Wed, 8 Jan 2020 13:16:39 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Tuesday, January 07, 2020 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- AP01 T.Murphy R.McMillan, T.Murphy EN01 B.Ketzeback C.Gray, R.McMillan ACTUAL PROG INSTRUMENT START FINISH -------------------------------------------------------------------- AP01 APOLLO 17:21 18:44 EN01 Echelle 18:50 19:53 EN01 Tpec 19:58 22:04 EN01 ARCTIC 22:14 01:11 EN01 Shack-Hartman 01:14 02:09 EN01 ARCTIC 02:14 06:11 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- AP01/R 17:21 18:21 0 0 0 0 0.0 1.0 0 0 EN01/W 18:21 06:58 0 0 0 0 1.9 10.7 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: C.Gray nicfps needed an init during checkout echelle ended at 19:53 tspec 19:58 - 22:04 arctic 22:14 - 01:11 Shack 01:14 - 02:09 arctic 02:14 We started engineering with some pick-up science of Betelgeuse using Tspec and the Echelle. The night started out mostly clear with high cirrus and good seeing. We really could have used some clouds and the 3" from last week to help us with the high counts. Obviously the star is rather bright in the IR (even if it is getting a bit dimmer in its old age) but, like most people in its old age, it's rather prickly. So, we took spectra of the diffraction spikes! We then tried scanning it *really fast* across the width of the slit. Yeah, Betelgeuse is too old to like those kinds of speeds. Then we tried taking off the bifocals and defocusing. Maybe that worked? Finally, we tried closing the dome doors down to about 4", you know, enough for someone to fall asleep but still bring in enough light to keep the monsters away. It didn't help; all the Tspec spectra were saturated. But maybe the spike and donut data will be of use. The engineering emails gives the files names of the exposures. After Betelgeuse, the clouds cleared and things were beautiful, clear, and majorly sub-arcsecond. So we moved to throughput tests with ARTIC. In one field I thought I caught a meteor (neat!). Whoa, and then a second! ...and then two more in the same exposure? Yeah, they weren't meteors, they were satellites and they nearly ruined the throughput tests with their frequency. Starlink? Damn satellites, stay off my lawn!! Engineering emails give the file names and exposure times of throughput images. Russet ran collimation just as the temperature started going a little chaotic so the seeing was wiggling all over the place, but still pretty good. Tcc, Hub, and axes controllers were restarted. Rotator was zeroed (-0.025). I ran a 50pt high altitude pointing model but didn't have enough time to reduce and implement it. ------- 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 -------------------------------------------------------------------------- 17:17 APOLLO 550( 1425) 91 31 2.8 5.2 4.5 4.9 4.0 530 1.70 19:03 ecamera 434( -592) 78 32 1.3 2.1 2.9 2.0 1.8 ND5 2.10 20:06 tcamera 532( 615) 66 44 1.9 1.5 2.5 1.7 1.5 Ks 1.90 23:30 arctic 432( 457) 22 55 2.7 1.5 2.1 1.9 2.4 sdss-u 0.75 23:36 arctic 430( 454) 19 55 2.1 1.5 2.2 1.9 2.2 sdss-r 0.69 00:36 arctic 512( 552) 352 56 3.1 1.8 2.5 2.4 3.1 sdss-r 0.86 00:44 arctic 490( 530) 352 55 2.7 1.8 2.6 2.5 2.7 sdss-r 1.47 01:19 shack 425( 984) 127 58 0.5 1.2 2.1 1.4 0.7 -- 1.50 02:18 arctic 431( 447) 38 45 3.5 1.2 1.9 1.4 2.5 sdss-r 1.17 02:27 arctic 445( 465) 35 46 2.9 1.3 2.0 1.5 2.3 sdss-r 1.06 02:56 arctic 470( 514) -56 40 3.2 1.7 2.3 1.9 2.9 sdss-r 1.08 03:16 arctic 452( 509) -58 37 2.9 1.9 2.6 2.3 3.2 sdss-r 0.88 03:30 arctic 480( 514) 13 51 2.2 1.6 2.5 2.0 2.1 sdss-r 1.27 04:53 guider 480( 478) 95 83 1.6 1.2 2.1 1.3 1.6 B 1.45 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 39 1 3 224 (SW) 205 ptly cldy none 17:00 38 -6 5 188 (S) 173 ptly cldy none 18:00 36 -7 5 187 (S) 89 ptly cldy none 19:00 35 -8 5 118 (ESE) 99 ptly cldy none 20:00 35 -8 6 142 (SE) 77 mstly clr none 21:00 37 -7 2 168 (SSE) 87 mstly clr none 22:00 37 -7 12 145 (SE) 70 mstly clr none 23:00 36 -7 10 183 (S) 69 clear none 00:00 36 -7 9 197 (SSW) 97 clear none 01:00 35 -8 11 183 (S) 110 clear none 02:00 36 1 15 201 (SSW) 151 clear none 03:00 37 -1 14 207 (SSW) 136 clear none 04:00 36 8 11 213 (SSW) 210 clear none 05:00 37 12 14 188 (S) 464 clear none 06:00 35 11 11 207 (SSW) 552 clear 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: 1.2.4 Current HUB version: v20171231_01 Current TUI version: 2.6.0