KECK OBSERVATORY CALENDAR FOR 1999 -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 1999 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ 12 18 18 12 12 12 h h % midnight THU JUL 01 19 16 19 58 20 29 21 21 04 23 04 53 05 35 14 15 18 18 23 12 8.9 1.4 15 2135-1507 FRI JUL 02 19 16 19 59 20 29 22 05 04 23 04 53 05 36 14 20 18 22 23 16 8.9 2.1 23 2226-1146 SAT JUL 03 19 16 19 59 20 29 22 47 04 24 04 54 05 36 14 24 18 26 23 21 8.9 2.8 31 2316-0747 SUN JUL 04 19 16 19 59 20 28 23 29 04 24 04 54 05 36 14 28 18 30 23 25 8.9 3.5 39 0007-0322 MON JUL 05 19 16 19 58 20 28 00 11 04 24 04 54 05 37 14 31 18 34 23 29 8.9 4.2 47 0058+0119 TUE JUL 06 19 16 19 58 20 28 00 54 04 25 04 55 05 37 14 35 18 38 23 34 8.9 4.9 55 0151+0603 WED JUL 07 19 16 19 58 20 28 01 39 04 25 04 55 05 37 14 39 18 42 23 38 8.9 5.7 63 0245+1033 THU JUL 08 19 16 19 58 20 28 02 28 04 26 04 56 05 38 14 43 18 46 23 43 9.0 6.5 72 0343+1431 FRI JUL 09 19 16 19 58 20 28 03 21 16 05 04 26 04 56 05 38 14 47 18 50 23 46 9.0 7.4 82 0443+1738 SAT JUL 10 19 16 19 58 20 28 04 18 17 09 04 27 04 56 05 39 14 51 18 54 23 50 9.0 8.3 92 0545+1936 SUN JUL 11 19 16 19 58 20 28 05 19 18 13 04 27 04 57 05 39 14 55 18 58 23 55 9.0 9.0 100 0648+2012 MON JUL 12 19 16 19 58 20 27 06 22 19 13 04 28 04 57 05 39 14 59 19 02 23 59 9.0 9.0 100 0751+1925 TUE JUL 13 19 16 19 58 20 27 07 24 20 09 04 28 04 58 05 40 15 03 19 05 00 04 9.0 8.8 97 0851+1723 WED JUL 14 19 15 19 57 20 27 21 01 04 29 04 58 05 40 15 06 19 09 00 08 9.0 8.0 88 0948+1420 THU JUL 15 19 15 19 57 20 27 21 47 04 29 04 59 05 40 15 10 19 13 00 13 9.0 7.2 79 1042+1036 FRI JUL 16 19 15 19 57 20 26 22 29 04 30 04 59 05 41 15 14 19 17 00 17 9.0 6.5 71 1133+0628 SAT JUL 17 19 15 19 57 20 26 23 09 04 30 05 00 05 41 15 18 19 21 00 22 9.0 5.9 64 1221+0209 SUN JUL 18 19 15 19 56 20 26 23 46 04 31 05 00 05 42 15 20 19 25 00 26 9.1 5.2 57 1308-0208 MON JUL 19 19 14 19 56 20 25 00 23 04 31 05 00 05 42 15 24 19 29 00 30 9.1 4.6 50 1354-0615 TUE JUL 20 19 14 19 56 20 25 01 01 04 32 05 01 05 42 15 28 19 33 00 35 9.1 4.0 44 1439-1003 WED JUL 21 19 14 19 55 20 24 01 39 04 32 05 01 05 43 15 31 19 37 00 39 9.1 3.4 36 1526-1325 THU JUL 22 19 13 19 55 20 24 02 20 04 33 05 02 05 43 15 35 19 41 00 44 9.1 2.7 29 1613-1614 FRI JUL 23 19 13 19 54 20 23 03 03 04 33 05 02 05 44 15 38 19 45 00 48 9.1 2.0 21 1702-1822 SAT JUL 24 19 13 19 54 20 23 16 04 03 49 04 34 05 03 05 44 15 42 19 49 00 53 9.2 1.2 13 1753-1943 SUN JUL 25 19 12 19 54 20 23 16 54 04 37 04 34 05 03 05 44 15 46 19 53 00 57 9.2 0.4 4 1844-2012 MON JUL 26 19 12 19 53 20 22 17 44 05 28 04 35 05 04 05 45 15 49 19 57 01 02 9.2 0.0 0 1937-1943 TUE JUL 27 19 12 19 53 20 21 18 32 06 21 04 35 05 04 05 45 15 53 20 01 01 05 9.2 0.0 0 2029-1816 WED JUL 28 19 11 19 52 20 21 19 19 07 15 04 36 05 05 05 46 15 56 20 05 01 10 9.2 0.0 0 2122-1554 THU JUL 29 19 11 19 52 20 20 20 04 04 36 05 05 05 46 16 00 20 09 01 14 9.2 0.2 2 2213-1242 FRI JUL 30 19 10 19 51 20 20 20 47 04 37 05 06 05 46 16 03 20 12 01 19 9.2 0.9 10 2305-0849 SAT JUL 31 19 10 19 51 20 19 21 29 04 38 05 06 05 47 16 07 20 16 01 23 9.2 1.6 17 2355-0427 ONE LINE REFERS TO EVENING DATE LAST QUARTER JUL 06 11:59 UT AND FOLLOWING MORNING. NEW MOON JUL 13 02:27 UT All dates and times are zone HST FIRST QUARTER JUL 20 09:04 UT in upper table (except sid time). FULL MOON JUL 28 11:28 UT