KECK OBSERVATORY CALENDAR FOR 2004 -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 2004 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ 12 18 18 12 18 18 h h % midnight THU JUL 01 19 16 19 58 20 29 18 43 06 09 04 23 04 53 05 36 14 50 18 21 22 45 7.9 0.0 0 1851-2725 FRI JUL 02 19 16 19 59 20 29 19 48 07 19 04 24 04 54 05 36 14 54 18 25 22 50 7.9 0.0 0 1958-2541 SAT JUL 03 19 16 19 59 20 28 20 46 04 24 04 54 05 36 14 57 18 29 22 54 7.9 0.3 3 2102-2210 SUN JUL 04 19 16 19 58 20 28 21 35 04 24 04 54 05 37 15 00 18 33 22 58 7.9 1.1 14 2200-1721 MON JUL 05 19 16 19 58 20 28 22 19 04 25 04 55 05 37 15 04 18 37 23 03 7.9 1.9 23 2253-1143 TUE JUL 06 19 16 19 58 20 28 22 57 04 25 04 55 05 37 15 08 18 41 23 07 7.9 2.5 31 2343-0543 WED JUL 07 19 16 19 58 20 28 23 32 04 26 04 56 05 38 15 12 18 45 23 12 8.0 3.1 38 0030+0020 THU JUL 08 19 16 19 58 20 28 00 06 04 26 04 56 05 38 15 16 18 49 23 16 8.0 3.6 45 0115+0611 FRI JUL 09 19 16 19 58 20 28 00 39 04 27 04 56 05 39 15 20 18 53 23 21 8.0 4.2 52 0200+1139 SAT JUL 10 19 16 19 58 20 28 01 14 04 27 04 57 05 39 15 24 18 57 23 24 8.0 4.8 59 0246+1634 SUN JUL 11 19 16 19 58 20 27 01 51 04 28 04 57 05 39 15 27 19 01 23 29 8.0 5.4 67 0333+2046 MON JUL 12 19 16 19 58 20 27 02 32 04 28 04 58 05 40 15 31 19 05 23 33 8.0 6.1 75 0423+2405 TUE JUL 13 19 15 19 57 20 27 03 16 16 38 04 29 04 58 05 40 15 35 19 09 23 38 8.0 6.8 84 0514+2622 WED JUL 14 19 15 19 57 20 27 04 05 17 31 04 29 04 59 05 40 15 39 19 12 23 42 8.0 7.6 95 0607+2728 THU JUL 15 19 15 19 57 20 26 04 57 18 23 04 30 04 59 05 41 15 42 19 16 23 47 8.1 8.1 100 0700+2717 FRI JUL 16 19 15 19 57 20 26 05 51 19 12 04 30 05 00 05 41 15 46 19 20 23 51 8.1 8.1 100 0753+2551 SAT JUL 17 19 15 19 56 20 26 06 46 19 57 04 31 05 00 05 42 15 50 19 24 23 56 8.1 8.1 100 0845+2312 SUN JUL 18 19 14 19 56 20 25 07 40 20 38 04 31 05 00 05 42 15 53 19 28 00 00 8.1 7.9 97 0935+1930 MON JUL 19 19 14 19 56 20 25 21 16 04 32 05 01 05 42 15 57 19 32 00 05 8.1 7.3 89 1023+1456 TUE JUL 20 19 14 19 55 20 24 21 52 04 32 05 01 05 43 16 00 19 36 00 09 8.1 6.7 81 1110+0940 WED JUL 21 19 13 19 55 20 24 22 26 04 33 05 02 05 43 16 04 19 40 00 14 8.2 6.1 75 1155+0356 THU JUL 22 19 13 19 54 20 23 23 00 04 33 05 02 05 44 16 06 19 44 00 18 8.2 5.6 67 1242-0204 FRI JUL 23 19 13 19 54 20 23 23 36 04 34 05 03 05 44 16 10 19 48 00 23 8.2 5.0 60 1329-0807 SAT JUL 24 19 12 19 54 20 23 00 14 04 34 05 03 05 44 16 14 19 52 00 27 8.2 4.3 52 1419-1358 SUN JUL 25 19 12 19 53 20 22 00 57 04 35 05 04 05 45 16 17 19 56 00 32 8.2 3.6 44 1513-1915 MON JUL 26 19 12 19 53 20 21 01 46 04 35 05 04 05 45 16 20 20 00 00 36 8.2 2.8 34 1612-2335 TUE JUL 27 19 11 19 52 20 21 02 43 04 36 05 05 05 46 16 24 20 04 00 41 8.2 1.9 22 1715-2630 WED JUL 28 19 11 19 52 20 20 16 22 03 47 04 36 05 05 05 46 16 27 20 08 00 44 8.3 0.8 9 1822-2736 THU JUL 29 19 10 19 51 20 20 17 28 04 55 04 37 05 06 05 46 16 31 20 12 00 49 8.3 0.0 0 1929-2641 FRI JUL 30 19 10 19 51 20 19 18 29 06 04 04 38 05 06 05 47 16 34 20 16 00 54 8.3 0.0 0 2034-2351 SAT JUL 31 19 10 19 50 20 18 19 23 07 10 04 38 05 06 05 47 16 37 20 20 00 58 8.3 0.0 0 2135-1927 ONE LINE REFERS TO EVENING DATE FULL MOON JUL 02 11:12 UT AND FOLLOWING MORNING. LAST QUARTER JUL 09 07:37 UT All dates and times are zone HST NEW MOON JUL 17 11:29 UT in upper table (except sid time). FIRST QUARTER JUL 25 03:40 UT FULL MOON JUL 31 18:08 UT