KECK OBSERVATORY CALENDAR FOR 2001 -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 2001 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ 12 18 18 12 12 12 h h % midnight SUN JUL 01 19 16 19 58 20 29 03 39 04 23 04 53 05 35 14 18 18 20 23 14 8.9 1.2 13 1613-1820 MON JUL 02 19 16 19 58 20 29 16 43 04 25 04 23 04 53 05 36 14 21 18 24 23 18 8.9 0.5 5 1705-2106 TUE JUL 03 19 16 19 59 20 29 17 38 05 13 04 24 04 54 05 36 14 26 18 28 23 23 8.9 0.0 0 1759-2249 WED JUL 04 19 16 19 59 20 28 18 31 06 04 04 24 04 54 05 36 14 30 18 32 23 27 8.9 0.0 0 1852-2324 THU JUL 05 19 16 19 58 20 28 19 21 06 56 04 24 04 54 05 37 14 33 18 36 23 31 8.9 0.0 0 1945-2251 FRI JUL 06 19 16 19 58 20 28 20 09 07 48 04 25 04 55 05 37 14 37 18 40 23 36 8.9 0.2 2 2037-2116 SAT JUL 07 19 16 19 58 20 28 20 52 04 25 04 55 05 37 14 41 18 44 23 40 8.9 0.9 10 2126-1844 SUN JUL 08 19 16 19 58 20 28 21 33 04 26 04 56 05 38 14 45 18 48 23 45 9.0 1.6 17 2214-1527 MON JUL 09 19 16 19 58 20 28 22 10 04 26 04 56 05 38 14 49 18 52 23 49 9.0 2.2 24 2300-1133 TUE JUL 10 19 16 19 58 20 28 22 46 04 27 04 56 05 39 14 53 18 56 23 52 9.0 2.8 31 2345-0712 WED JUL 11 19 16 19 58 20 28 23 20 04 27 04 57 05 39 14 57 19 00 23 57 9.0 3.4 37 0029-0233 THU JUL 12 19 16 19 58 20 27 23 55 04 28 04 57 05 39 15 01 19 04 00 01 9.0 3.9 43 0114+0216 FRI JUL 13 19 16 19 58 20 27 00 31 04 28 04 58 05 40 15 05 19 07 00 06 9.0 4.5 50 0159+0706 SAT JUL 14 19 15 19 57 20 27 01 09 04 29 04 58 05 40 15 08 19 11 00 10 9.0 5.2 57 0248+1146 SUN JUL 15 19 15 19 57 20 27 01 50 04 29 04 59 05 40 15 12 19 15 00 15 9.0 5.9 65 0339+1602 MON JUL 16 19 15 19 57 20 26 02 37 04 30 04 59 05 41 15 16 19 19 00 19 9.0 6.7 73 0434+1937 TUE JUL 17 19 15 19 57 20 26 03 31 16 31 04 30 05 00 05 41 15 20 19 23 00 24 9.0 7.6 83 0534+2211 WED JUL 18 19 15 19 56 20 26 04 30 17 35 04 31 05 00 05 42 15 23 19 27 00 28 9.1 8.6 94 0637+2322 THU JUL 19 19 14 19 56 20 25 05 35 18 38 04 31 05 00 05 42 15 26 19 31 00 32 9.1 9.1 100 0741+2256 FRI JUL 20 19 14 19 56 20 25 06 42 19 38 04 32 05 01 05 42 15 30 19 35 00 37 9.1 9.1 100 0846+2052 SAT JUL 21 19 14 19 55 20 24 07 49 20 34 04 32 05 01 05 43 15 33 19 39 00 41 9.1 8.4 92 0948+1720 SUN JUL 22 19 13 19 55 20 24 21 24 04 33 05 02 05 43 15 37 19 43 00 46 9.1 7.6 83 1047+1241 MON JUL 23 19 13 19 54 20 23 22 10 04 33 05 02 05 44 15 40 19 47 00 50 9.1 6.9 75 1143+0722 TUE JUL 24 19 13 19 54 20 23 22 52 04 34 05 03 05 44 15 44 19 51 00 55 9.2 6.2 67 1236+0144 WED JUL 25 19 12 19 54 20 23 23 33 04 34 05 03 05 44 15 48 19 55 00 59 9.2 5.5 60 1328-0349 THU JUL 26 19 12 19 53 20 22 00 14 04 35 05 04 05 45 15 51 19 59 01 04 9.2 4.8 52 1418-0903 FRI JUL 27 19 12 19 53 20 21 00 55 04 35 05 04 05 45 15 55 20 03 01 08 9.2 4.1 45 1509-1342 SAT JUL 28 19 11 19 52 20 21 01 37 04 36 05 05 05 46 15 58 20 07 01 12 9.2 3.5 37 1600-1737 SUN JUL 29 19 11 19 52 20 20 02 22 04 36 05 05 05 46 16 02 20 11 01 16 9.2 2.7 29 1653-2036 MON JUL 30 19 10 19 51 20 20 03 10 04 37 05 06 05 46 16 05 20 15 01 21 9.2 1.9 20 1746-2233 TUE JUL 31 19 10 19 51 20 19 16 26 04 00 04 38 05 06 05 47 16 09 20 18 01 25 9.2 1.1 11 1839-2323 ONE LINE REFERS TO EVENING DATE FULL MOON JUL 05 15:05 UT AND FOLLOWING MORNING. LAST QUARTER JUL 13 18:47 UT All dates and times are zone HST NEW MOON JUL 20 19:46 UT in upper table (except sid time). FIRST QUARTER JUL 27 10:10 UT