From: "N.C. Hastings" Subject: 3.5m Night Log 990228 Date: Mon, 1 Mar 1999 05:10:56 -0700 Apache Point Observatory, Sunspot, NM Sunday, February 28th, 1999 3.5-meter Night Observing Log Actual ---------------------------------------------------------------------- ASTRONOMER OBSERVER(S) INSTRUMENT DATE START FINISH ---------------------------------------------------------------------- Stubbs Gloria/Krisciunas SPIcam 2/28 19:21 20:21 Brown Brown DIS 2/28-29 20:21 23:50 Kron Holden GrIm2 2/29 00:10 05:10 ---------------------------------------------------------------------- INST SCHEDULED WEATH EQUIP OBS DAY NOTUSED I/RS/DN START FINISH D B D B D B USE D B ---------------------------------------------------------------------- UW02/S 19:21 20:21 - 0 - 0 - 1.0 0 - 0 WS02/R 20:21 00:10 - 0 - 0 - 3.7 0 - 0 UC05/R 00:10 05:10 - 0 - 0 - 5.0 0 - 0 -------------- Activity Log -------------- 1st Half Observing Specialist: K.Gloria The telescope was opened at 17:15 MST. We had some cirrus at sunset, but this was gone by the end of twilight. The observers were myself and Kevin Krisciunas for UW02, and Jeff Brown for WS02. We had pretty good seeing (1.0 - 1.3 arcsec). Both programs had a productive evening with no problems. Jeff Brown ended his program about 10 mins early. he graciously offered the leftover time to Brad Holden, the next observer. I didn't charge WS02 for this time. 2nd Half Observing Specialist: N.C.Hastings Second half started with very gusty winds, enough to close the 2.5 meter, but we stayed just below the line enough to stay open. Image quality was still OK despite the high winds, gusts usually at 34.5 mph! Seeing monitor performed well with no failures. FOCUS LOG February 28th 1999 Best Telescope Temp Wind Seeing Time Instrmnt Focus Az El Air/Truss Dir MPH filter FWHM" --------------------------------------------------------------------- 19:00 SPIcam -200(6120) 95 49 5.9/6.0 312 18 R 0.98" 19:05 guider 52380(6112) 96 51 5.7/5.9 316 14 R 1.0 " 20:30 slitcam -175(6138) 243 70 6.3/5.7 303 17 none 1.3 " 22:30 guider 54089(6117) 249 76 5.7/5.6 332 9 none 1.1 " 00:10 GrIm2 -178(6226) -17 62 4.8/4.9 348 24 f/5-Ks 0.96" 03:50 GrIm2 -170(6163) -15 70 4.1/4.0 048 33 f/5-Ks 0.85" WEATHER LOG February 28th 1999 Wind Time Temp-F Dewp-F MPH Direction Dust Sky Precip ------------------------------------------------------------------ 16:01 45 13 19 304 (NW) 526 cirrus none 17:01 44 14 15 305 (NW) 467 cirrus none 18:01 43 13 8 332 (NNW) 373 cirrus none 19:01 43 13 10 332 (NNW) 372 clear none 20:01 43 14 16 314 (NW) 345 clear none 21:01 43 14 17 312 (NW) 319 clear none 22:01 43 14 12 321 (NW) 332 clear none 23:01 42 13 18 318 (NW) 420 clear none 00:01 41 4 21 38 (NE) 234 clear none 01:01 41 2 12 14 (NNE) 283 clear none 02:01 40 3 7 9 (N) 282 clear none 03:01 39 3 22 0 (N) 276 clear none 04:01 39 2 17 38 (NE) 249 clear none 05:01 39 0 24 8 (N) 266 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 for the particles > 1 micron per 0.1 cu.ft. 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: 2.54b4 Current guide software version: GIm Ctrl v3.0b 17.out - NCH, KA