From: "Noel Camron Hastings" Subject: 3.5-m Night Log 04.08.2000 Date: Sun, 9 Apr 2000 05:07:30 -0700 Saturday, April 08, 2000 APACHE POINT OBSERVATORY Observing Log ACTUAL ASTRONOMER OBSERVER(S) INSTRUMENT DATE START FINISH -------------------------------------------------------------------- J.Dalcanton V.Desai SPIcam 4/08-9 19:30 19:58 22:10 23:30 INST SCHEDULED WEATH EQUIP OBS DAY NOTUSED I/RS/DN START FINISH D B D B D B USE D B -------------------------------------------------------------------- UW05/R 20:23 05:46 5.8 2.3 0 0 0 1.3 0 - 0 (note: times listed include instrument change time) -------- ACTIVITY LOG -------- 1st Half Observing Specialist: Camron Hastings Tonight started cloudy and remained so. We opened long enough for UW to get a set of sky flats (cloud flats) just in case. We closed at 20:05 MDT. A few holes opened up from time to time and we shot through them. The open and close times are listed above. The guider monitor refused to update the guider information. All other information seemed to be getting displayed accurately. I spoke with Craig about it and he fixed it on the fly. During the times when the cirrus was too thick for UW's program but still transparent enough for DIMM, I slewed the telescope to a star in the north, close to Polaris, and took images with SPIcam in V at differing air masses to compare with DIMM data. Eventually, we just had to close it all up though. We remained closed for the rest of the night. OBSERVER COMMENTS V.Desai (UW05): FOCUS LOG April 08 2000 Wind Time Inst Focus Az El Temp* Dir MPH filt FWHM" ----------------------------------------------------------------------- 22:15 SPIcam +010(0475) 169 45 4.9/5.7 176 19 I 0.83" 22:20 Guider 2282 170 44 4.9/5.7 176 20 none 1.19" *First temp is air, second temp is telescope superstructure. WEATHER April 08 2000 Wind Wind Time Temp F Dewp F MPH Direction Dust Sky Precip. ------------------------------------------------------------------- 16:01 53 15 8 218 (SW) 1530 Cirrus None 17:01 47 15 1 214 (SW) 1898 Cirrus None 18:01 47 15 1 334 (NNW) 1711 Cirrus None 19:01 45 16 5 124 (SE) 1778 Cirrus None 20:01 42 15 1 176 (S) 2653 Cirrus None 21:01 39 16 14 150 (SSE) 2127 Cirrus None 22:01 41 17 16 207 (SSW) 1684 Cirrus None 23:01 41 17 18 182 (S) 1480 Cirrus None 00:01 41 18 12 191 (S) 1350 Cirrus None 01:01 41 19 13 194 (SSW) 1477 Cirrus None 02:01 40 20 14 186 (S) 1491 Cirrus None 03:01 41 20 12 188 (S) 1689 Cirrus None 04:01 41 21 9 206 (SSW) 1725 Cirrus None 05:01 39 21 13 183 (S) 1666 Cirrus 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. - Camron