KECK OBSERVATORY CALENDAR FOR 2003 -NAUTICAL (computed for altitude 4145.0 m) NAUTICAL(12 deg) TWILIGHT/DAWN MOON DATE(HST) SUN TWILIGHT ENDS MOON MOON DAWN BEGINS SUN SIDEREAL TIMES NIGHT (12 deg) RA DEC 2003 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ 12 18 18 12 12 12 h h % midnight FRI AUG 01 19 10 19 50 20 18 22 04 04 38 05 06 05 47 16 10 20 20 01 27 9.3 7.0 75 1217+0230 SAT AUG 02 19 09 19 50 20 18 22 42 04 39 05 07 05 47 16 14 20 24 01 32 9.3 6.4 69 1307-0343 SUN AUG 03 19 09 19 49 20 17 23 21 04 39 05 07 05 48 16 17 20 28 01 36 9.3 5.8 62 1358-0949 MON AUG 04 19 08 19 48 20 16 00 03 04 40 05 08 05 48 16 20 20 32 01 41 9.3 5.1 54 1451-1526 TUE AUG 05 19 07 19 48 20 16 00 49 04 40 05 08 05 48 16 24 20 36 01 45 9.3 4.3 46 1548-2015 WED AUG 06 19 07 19 47 20 15 01 40 04 41 05 09 05 49 16 26 20 40 01 50 9.4 3.5 37 1647-2354 THU AUG 07 19 06 19 46 20 14 02 37 04 41 05 09 05 49 16 29 20 44 01 54 9.4 2.5 26 1749-2602 FRI AUG 08 19 06 19 46 20 14 16 11 03 38 04 42 05 09 05 49 16 33 20 48 01 58 9.4 1.5 16 1852-2630 SAT AUG 09 19 05 19 45 20 13 17 11 04 40 04 42 05 10 05 50 16 36 20 52 02 03 9.4 0.5 5 1954-2515 SUN AUG 10 19 04 19 44 20 12 18 06 05 43 04 43 05 10 05 50 16 39 20 56 02 07 9.4 0.0 0 2053-2229 MON AUG 11 19 04 19 44 20 11 18 54 06 42 04 43 05 11 05 50 16 43 21 00 02 12 9.4 0.0 0 2148-1831 TUE AUG 12 19 03 19 43 20 11 19 37 07 39 04 44 05 11 05 51 16 46 21 04 02 16 9.5 0.0 0 2240-1342 WED AUG 13 19 03 19 42 20 10 20 15 04 44 05 12 05 51 16 49 21 08 02 21 9.5 0.5 5 2328-0823 THU AUG 14 19 02 19 41 20 09 20 50 04 44 05 12 05 51 16 52 21 12 02 25 9.5 1.2 12 0014-0251 FRI AUG 15 19 01 19 41 20 08 21 23 04 45 05 12 05 52 16 56 21 16 02 29 9.5 1.7 17 0058+0240 SAT AUG 16 19 00 19 40 20 07 21 56 04 45 05 13 05 52 16 59 21 20 02 33 9.6 2.3 23 0142+0800 SUN AUG 17 19 00 19 39 20 06 22 29 04 46 05 13 05 52 17 02 21 24 02 37 9.6 2.8 29 0226+1259 MON AUG 18 18 59 19 38 20 05 23 04 04 46 05 13 05 53 17 05 21 28 02 41 9.6 3.4 35 0311+1726 TUE AUG 19 18 58 19 37 20 05 23 42 04 47 05 14 05 53 17 08 21 31 02 46 9.6 4.1 42 0359+2112 WED AUG 20 18 58 19 37 20 04 00 24 04 47 05 14 05 53 17 12 21 35 02 50 9.6 4.8 49 0449+2407 THU AUG 21 18 57 19 36 20 03 01 10 04 47 05 14 05 54 17 15 21 39 02 54 9.6 5.6 57 0542+2559 FRI AUG 22 18 56 19 35 20 02 02 02 04 48 05 15 05 54 17 18 21 43 02 59 9.7 6.4 66 0637+2638 SAT AUG 23 18 55 19 34 20 01 02 57 16 17 04 48 05 15 05 54 17 20 21 47 03 03 9.7 7.4 76 0733+2556 SUN AUG 24 18 54 19 33 20 00 03 56 17 09 04 49 05 15 05 54 17 23 21 51 03 07 9.7 8.4 86 0829+2350 MON AUG 25 18 54 19 32 19 59 04 56 17 56 04 49 05 16 05 55 17 26 21 55 03 12 9.7 9.4 96 0925+2024 TUE AUG 26 18 53 19 32 19 58 05 56 18 41 04 49 05 16 05 55 17 30 21 59 03 16 9.7 9.7 100 1019+1548 WED AUG 27 18 52 19 31 19 57 06 56 19 22 04 50 05 16 05 55 17 33 22 03 03 20 9.8 9.8 100 1111+1017 THU AUG 28 18 51 19 30 19 56 07 55 20 02 04 50 05 17 05 55 17 36 22 07 03 25 9.8 9.3 94 1202+0409 FRI AUG 29 18 50 19 29 19 55 20 41 04 51 05 17 05 56 17 39 22 11 03 29 9.8 8.6 87 1253-0214 SAT AUG 30 18 49 19 28 19 54 21 20 04 51 05 17 05 56 17 42 22 15 03 33 9.8 7.9 80 1345-0833 SUN AUG 31 18 49 19 27 19 53 22 02 04 51 05 18 05 56 17 45 22 19 03 38 9.8 7.3 73 1439-1426 ONE LINE REFERS TO EVENING DATE FIRST QUARTER AUG 05 07:30 UT AND FOLLOWING MORNING. FULL MOON AUG 12 04:50 UT All dates and times are zone HST LAST QUARTER AUG 20 00:51 UT in upper table (except sid time). NEW MOON AUG 27 17:27 UT