Subject: 3.5m Night Log 20240303 From: dembicky@apo.nmsu.edu Date: Mon, 4 Mar 2024 13:05:21 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Sunday, March 03, 2024 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- WY04 M.Brotherton M.Brotherton BY01 E.Hintz S.Call, T.Morrell UW02 P.Yoachim P.Yoachim WY01 C.Kobulnicky C.Kobulnicky ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- WY04 TSPEC 18:11 19:35 BY01 TSPEC 19:40 20:57 UW02 KOSMOS 21:17 23:52 WY01 Echelle 00:00 05:48 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- WY04/R 18:11 19:41 0 0 0 0 1.5 0.0 0 0 BY01/R 19:41 21:10 0 0 0 0 1.5 0.0 0 0 UW02/R 21:10 00:10 0 0 0 0 3.0 0.0 0 0 WY01/R 00:10 06:18 0 0 0 0 1.8 4.3 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: J.Dembicky I overfilled the Echelle as I got distracted changing a KOSMOS slit. I bleed off some of the LN2 and then did a manual fill of both tanks. This dropped the LN2 down to around 295lbs with pressure in the tank. The Echelle then did an auto fill a few minutes later dropping the weight to 290. I didn't get a mid IOL exposure since my observer logged in early and was taking cals with the echelle. Echelle LN2 tank weight and tank pressure looked normal at the end of the night. 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 -------------------------------------------------------------------------- 18:18 tcamera 555( 1378) 71 61 4.3 5.8 5.8 5.5 4.6 Ks 1.41 19:41 tcamera 463( 1228) -20 56 5.0 4.5 5.0 4.4 4.6 Ks 1.10 21:27 kosmos 403( 960) -136 51 4.6 4.3 4.9 4.3 4.6 -- 1.16 00:05 ecamera 460( -96) 191 80 3.3 3.2 3.8 3.4 3.4 ND1 0.79 02:45 ecamera 498( -117) 135 21 1.9 1.1 2.4 1.7 1.8 Clear 2.00 04:07 ecamera 447( -227) 63 68 0.9 0.6 1.6 0.9 0.9 Clear 1.17 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 46 14 24 272 (W) 3067 clear none 17:00 44 14 25 268 (W) 2330 clear none 18:00 41 14 20 266 (W) 833 mstly clr none 19:00 40 14 18 268 (W) 425 mstly clr none 20:00 41 14 18 253 (WSW) 410 clear none 21:00 41 14 18 264 (W) 545 clear none 22:00 41 15 18 261 (W) 462 mstly clr none 23:00 40 16 17 274 (W) 432 mstly clr none 00:00 39 18 26 269 (W) 510 ptly cldy none 01:00 37 18 25 263 (W) 542 ptly cldy none 02:00 35 19 22 266 (W) 458 ptly cldy none 03:00 35 19 16 282 (WNW) 539 ptly cldy none 04:00 34 19 16 269 (W) 596 ptly cldy none 05:00 34 20 20 272 (W) 448 ptly cldy none 06:00 32 21 21 260 (W) 482 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: 3.1.3