Date: Fri, 4 Feb 2000 07:04:37 -0700 (MST) From: Frank Deglman Subject: 3.5m Night Log 20000203 THURSDAY FEBRUARY 03, 2000 APACHE POINT OBSERVATORY OBSERVING LOG ACTUAL ASTRONOMER OBSERVER(S) INSTRUMENT DATE START FINISH Krisciunas Krisciunas SPIcam 2/3 18:33 19:33 Grebel Karachentsev SPIcam 2/3-4 19:33 06:01 INST SCHEDULED WEATH EQUIP OBS DAY NOTUSED I/RS/DN START FINISH D B D B D B USE D B UW07/R 18:33 19:33 0 - 0 - 1.0 - 0 0 - UW08/S 19:33 06:01 1.1 - 0 - 9.4 0 0 0 - (note: times listed include instrument change time) ACTIVITY LOG (* means a trouble report has been issued or appended to) Observing specialist: Deglman The telescope was opened at 17:05. Kevin Krisciunas flat fielded and then performed UW07 with SPIcam. Dumbell-shaped (on the order of one and a half arcseconds) stars were seen in some of the SPIcam frames, e.g., /export/images/lowz_sn/000203/sn1999gp.0004.fits. Igor Karachentsev performed UW08 on site with SPIcam. Most of the later images showed the "oscillation". Tracking error was also evident in a lot of the images. This cannot be avoided until the NA2 guider is back into service. Closed at 01:05 due to clouds. Reopened at 02:11 to clear skies. Monitored the DIS fills. They are occurring about every 40 minutes. Focus on SPIcam varied erratically later in the night. It ranged by about 150 microns in about one hour's time. Flat fielding for UW08. Closed at 06:50. OBSERVER COMMENTS FOCUS LOG FEBRUARY 03 2000 Wind Time Inst Focus Az El #Temp Dir MPH filt FWHM " 18:30 SPIcam +100(496) 206 60 6.7/7.5 186 10 V 0.76 19:10 SPIcam +50(417) 205 60 6.4/6.8 198 8 V 0.79 02:50 SPIcam 0(327) 205 41 3.5/3.9 351 1 V 1.12 04:30 SPIcam +125(395) 329 47 4.4/3.4 262 2 V 0.94 05:25 SPIcam -30(194) 205 60 2.3/2.5 198 9 V 0.79 #First temp is air, second temp is telescope. WEATHER FEBRUARY 03 2000 Wind Time Temp F Dewp F MPH Direction Dust Sky Precip. 16:01 51 6 10 190 (S) 85 clear none 17:01 48 -2 17 187 (S) 34 clear none 18:01 45 -7 11 186 (S) 41 clear none 19:01 44 -7 5 191 (S) 29 clear none 20:01 43 -6 6 186 (S) 42 clear none 21:01 43 -5 8 250 (WSW) 24 hvy cirrus none 22:01 41 -4 7 225 (SW) 34 cirrus none 23:01 41 -4 7 218 (SW) 22 cirrus none 00:01 42 -3 5 276 (W) 41 hvy cirrus none 01:01 42 -4 6 330 (NNW) 29 cloudy none 02:01 41 -2 8 298 (WNW) 24 cloudy none 03:01 39 0 1 1 (N) 65 clear none 04:01 41 1 1 349 (NNW) 23 clear none 05:01 37 0 1 181 (S) 45 clear none 06:01 36 1 4 175 (S) 52 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 > 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: 2.55b5. Current guide software version: GIm Ctrlv3.0b27. Current TCC version is 2.2.2. - Frank Deglman