Subject: 3.5m Night Log 20080527 Date: Wed, 28 May 2008 06:41:19 -0600 (MDT) From: bketzeba@apo.nmsu.edu (Bill Ketzeback) Apache Point Observatory 3.5m Telescope Night Log Tuesday, May 27th, 2008 ACTUAL ASTRONOMER OBSERVER(S) INSTRUMENT START FINISH ------------------------------------------------------------------- J.Frieman H.Lin,D.Tucker,S.Allam DIS 18:35 00:55 H.Weaver H.Weaver,Y.Fernandez, SPIcam 01:10 04:55 C.Lisse INST SCHED(TWILIGHT) WEATH EQUIP OBS DAY NOT USED I/ROW/DN START FINISH D B D B D B USE D B --------------------------------------------------------------------- UC03/R 21:06 01:05 0 0 0 0 4.0 0 0 0 0 JH02/R 01:05 04:55 0 0 0 0 0.5 3.3 0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: B.Ketzeback Az Velocity Scale: 585.5, 583.9; 584.7 (was 582 changed to 585) Clear night with moderate seeing until 0400 when the wind shifted direction from the east. Seeing then exploded to greater than 4 arcseconds. At 04:55 we closed when the humidity spiked. We never reopenned and the observers took dome cals. No other problems tonight. ------- FAILURE LOG ------- PROG INST FAILURE MODE TIME (SEDFNVOG) TI/SHU START FINISH DESCRIPTION ---------------------------------------------------------------------- ---------------- FOCUS LOG --------------- Time Instrument Focus Az El Temp Strc Prim Sec Air filt FWHM ----------------------------------------------------------------- 20:37 dis-slit -74( 367) 54 73 14.6 17.2 16.7 15.5 15.0 -- 1.40 21:10 NA2gdr 2428(24428) -91 43 14.4 16.1 16.0 14.5 14.7 R+nd2 1.38 01:19 SPICAM -68( 541) -53 37 15.4 14.8 15.3 14.6 15.1 R 1.38 01:23 NA2gdr 372(30372) -54 35 15.4 14.7 15.3 14.6 15.1 R+nd2 1.45 01:32 SPICAM 36( 649) -56 34 15.2 14.7 15.3 14.8 14.9 R 1.45 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------- 16:00 71 13 14 203 (SSW) 902 clear none 17:00 69 11 7 209 (SSW) 1006 clear none 18:00 67 11 10 256 (WSW) 832 clear none 19:00 65 13 14 242 (WSW) 1046 clear none 20:00 60 12 12 216 (SW) 1109 clear none 21:00 57 11 5 186 (S) 1383 clear none 22:00 59 13 6 179 (S) 1435 clear none 23:00 58 11 9 179 (S) 1517 clear none 00:00 59 6 8 184 (S) 1182 clear none 01:00 60 5 4 216 (SW) 857 clear none 02:00 60 6 5 176 (S) 883 clear none 03:00 57 10 18 124 (SE) 1224 clear none 04:00 56 16 12 115 (ESE) 1668 clear none 05:00 46 43 14 90 (E) 5210 clear humid 06:00 47 44 15 89 (E) 5914 clear humid 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 Telescope drives operational. Current TCC version: 2.9.1 Current TUI version: TUI 1.4.5