KECK OBSERVATORY CALENDAR FOR 2007 -ASTRONOMICAL (computed for altitude 4145.0 m) ASTRONOMICAL(18 deg) TWILIGHT/DAWN MOON DATE(HST) SUN TWILIGHT ENDS MOON MOON DAWN BEGINS SUN SIDEREAL TIMES NIGHT (18 deg) RA DEC 2007 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ 12 18 18 12 18 18 h h % midnight THU FEB 01 18 24 19 03 19 29 17 55 07 38 05 42 06 08 06 47 03 55 08 27 14 10 10.2 0.0 0 0918+1827 FRI FEB 02 18 25 19 04 19 30 18 50 05 41 06 08 06 46 04 00 08 31 14 13 10.2 0.0 0 1005+1325 SAT FEB 03 18 25 19 04 19 30 19 41 05 41 06 07 06 46 04 04 08 35 14 17 10.2 0.2 1 1050+0756 SUN FEB 04 18 26 19 05 19 31 20 31 05 41 06 07 06 46 04 09 08 39 14 21 10.2 1.0 9 1133+0215 MON FEB 05 18 26 19 05 19 31 21 19 05 41 06 07 06 45 04 13 08 43 14 25 10.2 1.8 17 1215-0326 TUE FEB 06 18 27 19 06 19 32 22 06 05 40 06 06 06 45 04 18 08 47 14 28 10.1 2.6 25 1257-0858 WED FEB 07 18 27 19 06 19 32 22 55 05 40 06 06 06 45 04 22 08 51 14 32 10.1 3.4 33 1340-1412 THU FEB 08 18 28 19 06 19 32 23 45 05 40 06 06 06 44 04 26 08 55 14 36 10.1 4.2 41 1425-1856 FRI FEB 09 18 28 19 07 19 33 00 38 05 39 06 05 06 44 04 31 08 59 14 38 10.1 5.1 50 1514-2258 SAT FEB 10 18 29 19 07 19 33 01 33 05 39 06 05 06 43 04 35 09 02 14 42 10.1 6.0 59 1606-2606 SUN FEB 11 18 29 19 08 19 34 02 30 05 39 06 04 06 43 04 40 09 06 14 46 10.1 6.9 68 1701-2802 MON FEB 12 18 30 19 08 19 34 03 28 05 38 06 04 06 42 04 44 09 10 14 49 10.1 7.9 78 1800-2832 TUE FEB 13 18 30 19 09 19 35 04 24 05 38 06 03 06 42 04 49 09 14 14 53 10.0 8.8 87 1900-2724 WED FEB 14 18 31 19 09 19 35 05 17 05 37 06 03 06 41 04 53 09 18 14 56 10.0 9.7 96 2000-2434 THU FEB 15 18 31 19 10 19 35 06 06 16 53 05 37 06 02 06 41 04 56 09 22 15 00 10.0 10.0 100 2059-2012 FRI FEB 16 18 32 19 10 19 36 06 50 17 57 05 36 06 02 06 40 05 01 09 26 15 03 10.0 10.0 100 2155-1432 SAT FEB 17 18 32 19 10 19 36 07 31 19 00 05 36 06 01 06 40 05 05 09 30 15 07 10.0 10.0 100 2249-0759 SUN FEB 18 18 33 19 11 19 36 20 02 05 35 06 01 06 39 05 09 09 34 15 10 10.0 9.6 95 2342-0057 MON FEB 19 18 33 19 11 19 37 21 03 05 35 06 00 06 38 05 14 09 38 15 14 10.0 8.5 85 0034+0607 TUE FEB 20 18 33 19 11 19 37 22 05 05 34 06 00 06 38 05 18 09 42 15 17 9.9 7.5 75 0128+1248 WED FEB 21 18 34 19 12 19 37 23 08 05 33 05 59 06 37 05 22 09 46 15 20 9.9 6.4 64 0222+1842 THU FEB 22 18 34 19 12 19 38 00 12 05 33 05 59 06 36 05 27 09 50 15 24 9.9 5.4 53 0320+2326 FRI FEB 23 18 35 19 13 19 38 01 17 05 32 05 58 06 36 05 31 09 54 15 27 9.9 4.2 42 0419+2644 SAT FEB 24 18 35 19 13 19 39 02 19 05 32 05 57 06 35 05 36 09 58 15 31 9.9 3.2 32 0520+2824 SUN FEB 25 18 35 19 13 19 39 03 18 05 31 05 57 06 34 05 40 10 02 15 34 9.9 2.2 22 0620+2822 MON FEB 26 18 36 19 14 19 39 04 10 05 30 05 56 06 34 05 44 10 06 15 36 9.9 1.3 13 0718+2646 TUE FEB 27 18 36 19 14 19 40 04 56 05 30 05 55 06 33 05 49 10 09 15 40 9.8 0.6 5 0813+2348 WED FEB 28 18 37 19 14 19 40 05 37 05 29 05 55 06 32 05 53 10 13 15 43 9.8 0.0 0 0904+1946 ONE LINE REFERS TO EVENING DATE FULL MOON FEB 02 05:48 UT AND FOLLOWING MORNING. LAST QUARTER FEB 10 09:54 UT All dates and times are zone HST NEW MOON FEB 17 16:15 UT in upper table (except sid time). FIRST QUARTER FEB 24 07:59 UT