KECK OBSERVATORY CALENDAR FOR 1999 -ASTRONOMICAL (computed for altitude 4145.0 m) ASTRONOMICAL(18 deg) TWILIGHT/DAWN MOON DATE(HST) SUN TWILIGHT ENDS MOON MOON DAWN BEGINS SUN SIDEREAL TIMES NIGHT (18 deg) RA DEC 1999 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ 12 18 18 12 18 18 h h % midnight MON MAR 01 18 37 19 15 19 40 18 08 07 17 05 28 05 54 06 32 05 56 10 17 15 46 9.8 0.0 0 1103+0808 TUE MAR 02 18 37 19 15 19 40 19 01 07 56 05 28 05 53 06 31 06 00 10 21 15 50 9.8 0.0 0 1152+0405 WED MAR 03 18 38 19 15 19 41 19 52 05 27 05 52 06 30 06 05 10 25 15 53 9.8 0.2 1 1239-0002 THU MAR 04 18 38 19 16 19 41 20 42 05 26 05 52 06 29 06 09 10 29 15 56 9.8 1.0 10 1325-0406 FRI MAR 05 18 38 19 16 19 41 21 31 05 25 05 51 06 28 06 13 10 33 15 59 9.7 1.8 18 1411-0757 SAT MAR 06 18 39 19 16 19 42 22 20 05 25 05 50 06 28 06 18 10 37 16 03 9.7 2.6 27 1457-1126 SUN MAR 07 18 39 19 16 19 42 23 09 05 24 05 49 06 27 06 22 10 41 16 06 9.7 3.4 35 1544-1427 MON MAR 08 18 39 19 17 19 42 23 59 05 23 05 49 06 26 06 26 10 45 16 09 9.7 4.3 44 1632-1652 TUE MAR 09 18 40 19 17 19 43 00 49 05 22 05 48 06 25 06 31 10 49 16 12 9.6 5.1 52 1722-1834 WED MAR 10 18 40 19 17 19 43 01 39 05 21 05 47 06 24 06 35 10 53 16 14 9.6 5.9 61 1813-1927 THU MAR 11 18 40 19 18 19 43 02 29 05 21 05 46 06 24 06 39 10 57 16 18 9.6 6.8 70 1905-1927 FRI MAR 12 18 40 19 18 19 44 03 19 05 20 05 45 06 23 06 44 11 01 16 21 9.6 7.6 78 1958-1828 SAT MAR 13 18 41 19 18 19 44 04 08 05 19 05 44 06 22 06 48 11 04 16 24 9.6 8.4 87 2053-1630 SUN MAR 14 18 41 19 19 19 44 04 55 16 06 05 18 05 44 06 21 06 52 11 08 16 27 9.6 9.2 95 2147-1334 MON MAR 15 18 41 19 19 19 44 05 42 17 04 05 17 05 43 06 20 06 56 11 12 16 30 9.5 9.5 100 2242-0948 TUE MAR 16 18 42 19 19 19 45 06 28 18 04 05 16 05 42 06 19 07 01 11 16 16 33 9.5 9.5 100 2337-0522 WED MAR 17 18 42 19 19 19 45 07 13 19 04 05 15 05 41 06 19 07 05 11 20 16 36 9.5 9.5 100 0032-0033 THU MAR 18 18 42 19 20 19 45 07 59 20 05 05 15 05 40 06 18 07 08 11 24 16 40 9.5 9.2 96 0127+0421 FRI MAR 19 18 42 19 20 19 46 21 06 05 14 05 39 06 17 07 13 11 28 16 43 9.5 8.1 85 0224+0901 SAT MAR 20 18 43 19 20 19 46 22 09 05 13 05 38 06 16 07 17 11 32 16 46 9.5 7.1 74 0321+1307 SUN MAR 21 18 43 19 21 19 46 23 11 05 12 05 38 06 15 07 21 11 36 16 49 9.4 6.0 63 0419+1622 MON MAR 22 18 43 19 21 19 47 00 13 05 11 05 37 06 14 07 26 11 40 16 52 9.4 5.0 52 0519+1833 TUE MAR 23 18 44 19 21 19 47 01 12 05 10 05 36 06 13 07 30 11 44 16 55 9.4 4.0 42 0618+1934 WED MAR 24 18 44 19 21 19 47 02 08 05 09 05 35 06 12 07 34 11 48 16 58 9.4 3.0 32 0716+1924 THU MAR 25 18 44 19 22 19 47 03 01 05 08 05 34 06 12 07 38 11 52 17 01 9.4 2.1 22 0813+1806 FRI MAR 26 18 44 19 22 19 48 03 49 05 07 05 33 06 11 07 43 11 56 17 04 9.3 1.3 13 0907+1551 SAT MAR 27 18 45 19 22 19 48 04 33 05 06 05 32 06 10 07 47 12 00 17 06 9.3 0.5 5 0959+1250 SUN MAR 28 18 45 19 23 19 48 16 02 05 15 05 05 05 31 06 09 07 51 12 04 17 09 9.3 0.0 0 1049+0915 MON MAR 29 18 45 19 23 19 49 16 54 05 54 05 04 05 30 06 08 07 56 12 08 17 12 9.2 0.0 0 1137+0518 TUE MAR 30 18 45 19 23 19 49 17 46 06 32 05 04 05 29 06 07 08 00 12 11 17 16 9.2 0.0 0 1224+0111 WED MAR 31 18 46 19 24 19 49 18 36 07 09 05 03 05 29 06 06 08 04 12 15 17 19 9.2 0.0 0 1310-0255 ONE LINE REFERS TO EVENING DATE FULL MOON MAR 02 07:03 UT AND FOLLOWING MORNING. LAST QUARTER MAR 10 08:44 UT All dates and times are zone HST NEW MOON MAR 17 18:49 UT in upper table (except sid time). FIRST QUARTER MAR 24 10:21 UT FULL MOON MAR 31 22:51 UT