KECK OBSERVATORY CALENDAR FOR 2002 -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 2002 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ 12 18 18 12 12 12 h h % midnight MON APR 01 18 46 19 24 19 50 22 59 05 02 05 28 06 05 07 44 12 20 17 49 10.1 3.6 35 1702-2228 TUE APR 02 18 46 19 24 19 50 23 58 05 01 05 27 06 05 07 48 12 24 17 52 10.1 4.6 45 1800-2418 WED APR 03 18 46 19 24 19 50 00 54 05 00 05 26 06 04 07 52 12 28 17 55 10.0 5.5 54 1856-2445 THU APR 04 18 47 19 25 19 51 01 45 04 59 05 25 06 03 07 57 12 32 17 58 10.0 6.3 63 1951-2356 FRI APR 05 18 47 19 25 19 51 02 32 04 58 05 24 06 02 08 00 12 36 18 01 10.0 7.1 71 2043-2158 SAT APR 06 18 47 19 25 19 52 03 14 04 57 05 23 06 01 08 04 12 40 18 04 10.0 7.8 78 2133-1904 SUN APR 07 18 48 19 26 19 52 03 53 04 56 05 22 06 00 08 09 12 44 18 07 9.9 8.5 85 2221-1524 MON APR 08 18 48 19 26 19 52 04 29 04 55 05 21 06 00 08 13 12 48 18 10 9.9 9.1 91 2306-1110 TUE APR 09 18 48 19 26 19 53 05 02 16 41 04 54 05 20 05 59 08 17 12 52 18 13 9.9 9.6 96 2350-0631 WED APR 10 18 48 19 27 19 53 05 35 17 29 04 53 05 20 05 58 08 22 12 56 18 17 9.9 9.9 100 0033-0137 THU APR 11 18 49 19 27 19 53 06 08 18 17 04 52 05 19 05 57 08 26 13 00 18 20 9.9 9.9 100 0116+0321 FRI APR 12 18 49 19 27 19 54 06 42 19 05 04 51 05 18 05 56 08 30 13 04 18 23 9.8 9.8 100 0200+0816 SAT APR 13 18 49 19 28 19 54 07 18 19 55 04 50 05 17 05 55 08 35 13 08 18 26 9.8 9.4 95 0246+1255 SUN APR 14 18 50 19 28 19 55 07 57 20 47 04 50 05 16 05 55 08 39 13 12 18 29 9.8 8.5 86 0334+1707 MON APR 15 18 50 19 28 19 55 21 41 04 49 05 15 05 54 08 43 13 16 18 31 9.8 7.6 77 0424+2037 TUE APR 16 18 50 19 29 19 56 22 37 04 48 05 14 05 53 08 48 13 20 18 34 9.7 6.6 67 0518+2313 WED APR 17 18 51 19 29 19 56 23 34 04 47 05 14 05 52 08 52 13 24 18 38 9.7 5.7 58 0614+2439 THU APR 18 18 51 19 30 19 56 00 30 04 46 05 13 05 51 08 57 13 27 18 41 9.7 4.7 48 0712+2447 FRI APR 19 18 51 19 30 19 57 01 25 04 45 05 12 05 51 09 01 13 31 18 44 9.7 3.8 39 0810+2329 SAT APR 20 18 51 19 30 19 57 02 16 04 44 05 11 05 50 09 05 13 35 18 47 9.7 2.9 30 0909+2045 SUN APR 21 18 52 19 31 19 58 03 05 04 43 05 10 05 49 09 10 13 39 18 50 9.7 2.1 21 1006+1643 MON APR 22 18 52 19 31 19 58 03 50 04 42 05 09 05 48 09 13 13 43 18 53 9.6 1.3 13 1103+1136 TUE APR 23 18 52 19 32 19 59 04 33 04 42 05 09 05 48 09 18 13 47 18 57 9.6 0.6 6 1158+0544 WED APR 24 18 53 19 32 19 59 16 30 05 16 04 41 05 08 05 47 09 22 13 51 19 00 9.6 0.0 0 1252-0032 THU APR 25 18 53 19 32 20 00 17 32 05 59 04 40 05 07 05 46 09 26 13 55 19 03 9.6 0.0 0 1347-0647 FRI APR 26 18 53 19 33 20 00 18 34 06 44 04 39 05 06 05 46 09 31 13 59 19 06 9.6 0.0 0 1442-1236 SAT APR 27 18 54 19 33 20 01 19 38 07 32 04 38 05 06 05 45 09 35 14 03 19 10 9.6 0.1 0 1540-1736 SUN APR 28 18 54 19 34 20 01 20 41 04 37 05 05 05 44 09 40 14 07 19 13 9.5 1.1 11 1638-2127 MON APR 29 18 55 19 34 20 02 21 43 04 37 05 04 05 44 09 44 14 11 19 16 9.5 2.1 22 1737-2356 TUE APR 30 18 55 19 35 20 02 22 42 04 36 05 03 05 43 09 49 14 15 19 19 9.5 3.1 32 1836-2457 ONE LINE REFERS TO EVENING DATE LAST QUARTER APR 04 15:33 UT AND FOLLOWING MORNING. NEW MOON APR 12 19:26 UT All dates and times are zone HST FIRST QUARTER APR 20 12:52 UT in upper table (except sid time). FULL MOON APR 27 03:04 UT