Date: Sat, 31 Mar 2001 05:56:00 -0700 (MST) From: Jack Dembicky Subject: 3.5m Night Log 20010330 APACHE POINT OBSERVATORY 3.5m Telescope Night Log Friday, March 30th, 2001 ACTUAL ASTRONOMER OBSERVER(S) INSTRUMENT START FINISH -------------------------------------------------------------------- P.McGehee P.McGehee DIS-High 18:45 00:00 P.Szkody P.Szkody DIS-High 00:00 05:35 INST SCHEDULED WEATH EQUIP OBS DAY NOTUSED I/RO/DN START FINISH D B D B D B USE D B -------------------------------------------------------------------- DD04/O 19:16 00:10 0 0 0 0 0 4.9 0 0 0 NM06/R 00:10 04:58 0 0 0 0 4.8 0 0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- 1st & 2nd Half Observing Specialist: Jack Dembicky Turned on enclosure fans at 16:30. Louvers opened at 18:00. Opened enclosure at 18:10. Seeing started out around 1 arc sec at the start of the night but deteriorated to 1.5-2 arc sec by 23:00. Seeing improved slightly later in the evening, typically around 1-1.5 arc sec. A very intense red and blue-green aurora display at 23:30. Covered 1/2 of the sky from almost due W thru due E. The light show died down around 00:00. Everything ran smoothly for the whole night. --------------- INSTRUMENT FOCUS LOG ---------------- Air/Truss Wind Time Instrument Focus Az El Temp-C Dir MPH filt FWHM" ---------------------------------------------------------------------- 19:12 DIS-high -80(746) 151 58 6.2/7.1 297 18 none 1.11 19:22 NA2gdr -1445(55604) 156 59 6.2/6.9 291 16 red 0.99 20:30 DIS-high -40(790) 243 50 6.6/6.5 284 15 none 1.02 22:18 DIS-high 20(801) 153 53 5.1/5.5 349 13 none 1.53 02:20 DIS-high -40(651) 154 54 3.4/3.4 348 15 none 1.39 ------------- WEATHER CONDITIONS ------------ Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:02 46 24 26 301 (WNW) 308 clear none 17:02 47 23 24 294 (WNW) 293 clear none 18:02 45 21 15 288 (WNW) 237 clear none 19:02 43 20 17 304 (NW) 266 clear none 20:02 44 18 16 319 (NW) 262 clear none 21:02 44 16 22 311 (NW) 278 clear none 22:02 42 14 11 356 (N) 316 clear none 23:02 41 10 3 306 (NW) 314 clear none 00:02 41 11 8 341 (NNW) 321 clear none 01:02 40 10 23 358 (N) 414 clear none 02:02 39 8 9 20 (NNE) 434 clear none 03:02 37 8 9 31 (NNE) 561 clear none 04:02 37 4 24 332 (NNW) 575 clear none 05:02 36 5 12 0 (N) 497 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 STATUS Primary, secondary, and tertiary mirrors in place and collimated. Primary support system operational. Mirror ventilation system in place. Telescope drives operational. Current Remark version: 2.62. Current guide software version: GIm Ctrlv3.0b27. Current TCC version: 2.5.1 Current MC version: v1_7_3.