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 FRI JUN 01 19 08 19 50 20 20 03 33 04 19 04 49 05 31 12 11 16 22 21 12 9.0 1.3 14 1352-0620 SAT JUN 02 19 08 19 50 20 20 16 02 04 14 04 19 04 49 05 31 12 15 16 26 21 16 9.0 0.6 6 1442-1119 SUN JUN 03 19 09 19 51 20 21 16 58 04 57 04 19 04 49 05 31 12 20 16 30 21 20 9.0 0.0 0 1534-1540 MON JUN 04 19 09 19 51 20 21 17 54 05 42 04 19 04 49 05 31 12 24 16 34 21 24 9.0 0.0 0 1627-1912 TUE JUN 05 19 09 19 52 20 22 18 50 06 29 04 19 04 49 05 31 12 29 16 38 21 27 8.9 0.0 0 1720-2143 WED JUN 06 19 10 19 52 20 22 19 45 07 19 04 19 04 49 05 31 12 33 16 42 21 31 8.9 0.0 0 1814-2307 THU JUN 07 19 10 19 53 20 23 20 38 04 19 04 49 05 31 12 38 16 46 21 35 8.9 0.8 8 1908-2321 FRI JUN 08 19 11 19 53 20 23 21 27 04 19 04 49 05 31 12 42 16 49 21 39 8.9 1.6 17 2001-2229 SAT JUN 09 19 11 19 53 20 23 22 13 04 19 04 49 05 31 12 46 16 53 21 43 8.9 2.3 26 2052-2035 SUN JUN 10 19 11 19 54 20 24 22 55 04 19 04 49 05 31 12 51 16 57 21 47 8.9 3.0 33 2141-1749 MON JUN 11 19 12 19 54 20 24 23 35 04 19 04 49 05 31 12 55 17 01 21 51 8.9 3.7 41 2228-1419 TUE JUN 12 19 12 19 55 20 25 00 11 04 19 04 49 05 31 13 00 17 05 21 55 8.9 4.3 47 2314-1016 WED JUN 13 19 12 19 55 20 25 00 47 04 19 04 49 05 31 13 04 17 09 21 59 8.9 4.9 54 2358-0547 THU JUN 14 19 13 19 55 20 25 01 22 04 19 04 49 05 31 13 07 17 13 22 03 8.9 5.5 61 0043-0100 FRI JUN 15 19 13 19 56 20 26 01 57 04 19 04 49 05 32 13 12 17 17 22 07 8.9 6.0 67 0129+0355 SAT JUN 16 19 13 19 56 20 26 02 35 04 19 04 49 05 32 13 16 17 21 22 11 8.9 6.7 74 0217+0849 SUN JUN 17 19 13 19 56 20 26 03 15 04 19 04 49 05 32 13 20 17 25 22 15 8.9 7.3 82 0307+1328 MON JUN 18 19 14 19 56 20 27 04 01 16 47 04 19 04 49 05 32 13 24 17 29 22 19 8.9 8.1 90 0401+1735 TUE JUN 19 19 14 19 57 20 27 04 51 17 48 04 19 04 50 05 32 13 29 17 33 22 24 8.9 8.9 100 0459+2050 WED JUN 20 19 14 19 57 20 27 05 48 18 51 04 20 04 50 05 32 13 33 17 37 22 28 8.9 8.9 100 0600+2252 THU JUN 21 19 14 19 57 20 27 06 50 19 55 04 20 04 50 05 33 13 37 17 41 22 32 8.9 8.9 100 0704+2323 FRI JUN 22 19 15 19 57 20 28 07 55 20 56 04 20 04 50 05 33 13 41 17 45 22 35 8.9 7.9 88 0808+2218 SAT JUN 23 19 15 19 58 20 28 21 53 04 20 04 50 05 33 13 46 17 49 22 39 8.9 7.0 78 0910+1941 SUN JUN 24 19 15 19 58 20 28 22 44 04 21 04 51 05 33 13 50 17 53 22 44 8.9 6.1 68 1009+1549 MON JUN 25 19 15 19 58 20 28 23 31 04 21 04 51 05 34 13 54 17 57 22 48 8.9 5.3 60 1105+1103 TUE JUN 26 19 15 19 58 20 28 00 14 04 21 04 51 05 34 13 58 18 00 22 52 8.9 4.6 51 1159+0546 WED JUN 27 19 16 19 58 20 28 00 54 04 21 04 52 05 34 14 02 18 04 22 57 8.9 4.0 44 1250+0017 THU JUN 28 19 16 19 58 20 28 01 34 04 22 04 52 05 34 14 06 18 08 23 01 8.9 3.3 37 1340-0505 FRI JUN 29 19 16 19 58 20 28 02 14 04 22 04 52 05 35 14 10 18 12 23 05 8.9 2.6 29 1430-1008 SAT JUN 30 19 16 19 58 20 29 02 55 04 22 04 53 05 35 14 14 18 16 23 10 8.9 2.0 22 1521-1437 ONE LINE REFERS TO EVENING DATE FULL MOON JUN 06 01:43 UT AND FOLLOWING MORNING. LAST QUARTER JUN 14 03:31 UT All dates and times are zone HST NEW MOON JUN 21 12:00 UT in upper table (except sid time). FIRST QUARTER JUN 28 03:23 UT