KECK OBSERVATORY CALENDAR FOR 2003 -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 2003 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ 12 18 18 12 18 18 h h % midnight THU MAY 01 18 55 19 35 20 03 06 33 19 26 04 35 05 03 05 42 10 20 14 18 18 54 8.5 8.5 100 0320+1744 FRI MAY 02 18 56 19 35 20 03 07 13 20 18 04 34 05 02 05 42 10 24 14 22 18 56 8.5 8.3 97 0408+2125 SAT MAY 03 18 56 19 36 20 04 07 56 21 11 04 34 05 01 05 41 10 29 14 26 19 00 8.5 7.4 86 0458+2413 SUN MAY 04 18 56 19 36 20 04 22 05 04 33 05 01 05 41 10 33 14 30 19 03 8.5 6.5 76 0551+2557 MON MAY 05 18 57 19 37 20 05 22 59 04 32 05 00 05 40 10 38 14 34 19 06 8.4 5.5 65 0646+2629 TUE MAY 06 18 57 19 37 20 05 23 50 04 31 04 59 05 40 10 42 14 37 19 09 8.4 4.7 55 0741+2541 WED MAY 07 18 58 19 38 20 06 00 39 04 31 04 59 05 39 10 47 14 41 19 13 8.4 3.9 45 0836+2335 THU MAY 08 18 58 19 38 20 06 01 25 04 30 04 58 05 39 10 51 14 45 19 16 8.4 3.1 36 0930+2013 FRI MAY 09 18 58 19 39 20 07 02 08 04 29 04 58 05 38 10 56 14 49 19 19 8.4 2.3 28 1023+1542 SAT MAY 10 18 59 19 39 20 08 02 49 04 29 04 57 05 38 11 01 14 53 19 23 8.3 1.7 19 1115+1015 SUN MAY 11 18 59 19 40 20 08 03 28 04 28 04 57 05 37 11 05 14 57 19 26 8.3 1.0 11 1207+0406 MON MAY 12 19 00 19 40 20 09 04 09 04 28 04 56 05 37 11 09 15 01 19 30 8.3 0.3 3 1300-0226 TUE MAY 13 19 00 19 41 20 09 16 30 04 51 04 27 04 55 05 36 11 13 15 05 19 33 8.3 0.0 0 1354-0858 WED MAY 14 19 00 19 41 20 10 17 34 05 37 04 26 04 55 05 36 11 18 15 09 19 36 8.3 0.0 0 1451-1505 THU MAY 15 19 01 19 42 20 10 18 40 06 28 04 26 04 54 05 35 11 22 15 13 19 40 8.3 0.0 0 1551-2015 FRI MAY 16 19 01 19 42 20 11 19 48 07 24 04 25 04 54 05 35 11 27 15 17 19 43 8.2 0.0 0 1655-2403 SAT MAY 17 19 02 19 43 20 11 20 56 04 25 04 54 05 35 11 31 15 21 19 47 8.2 0.8 9 1759-2608 SUN MAY 18 19 02 19 43 20 12 22 00 04 24 04 53 05 34 11 36 15 25 19 50 8.2 1.8 21 1904-2623 MON MAY 19 19 03 19 44 20 13 22 59 04 24 04 53 05 34 11 41 15 29 19 53 8.2 2.8 33 2005-2457 TUE MAY 20 19 03 19 44 20 13 23 50 04 23 04 52 05 34 11 45 15 33 19 56 8.2 3.6 44 2102-2206 WED MAY 21 19 03 19 45 20 14 00 34 04 23 04 52 05 33 11 50 15 37 20 00 8.1 4.3 53 2155-1812 THU MAY 22 19 04 19 45 20 14 01 13 04 22 04 52 05 33 11 54 15 41 20 03 8.1 5.0 61 2244-1336 FRI MAY 23 19 04 19 46 20 15 01 49 04 22 04 51 05 33 11 59 15 44 20 07 8.1 5.6 68 2330-0833 SAT MAY 24 19 05 19 46 20 15 02 22 04 22 04 51 05 33 12 03 15 48 20 11 8.1 6.1 75 0014-0317 SUN MAY 25 19 05 19 47 20 16 02 54 04 21 04 51 05 32 12 08 15 52 20 14 8.1 6.6 82 0057+0201 MON MAY 26 19 05 19 47 20 17 03 26 04 21 04 50 05 32 12 13 15 56 20 18 8.1 7.2 88 0140+0713 TUE MAY 27 19 06 19 48 20 17 03 58 16 33 04 21 04 50 05 32 12 17 16 00 20 22 8.1 7.7 95 0223+1209 WED MAY 28 19 06 19 48 20 18 04 34 17 22 04 20 04 50 05 32 12 22 16 04 20 25 8.0 8.0 100 0308+1640 THU MAY 29 19 07 19 49 20 18 05 12 18 13 04 20 04 50 05 32 12 26 16 08 20 29 8.0 8.0 100 0356+2033 FRI MAY 30 19 07 19 49 20 19 05 54 19 06 04 20 04 49 05 31 12 30 16 12 20 33 8.0 8.0 100 0446+2337 SAT MAY 31 19 08 19 50 20 19 06 41 20 00 04 20 04 49 05 31 12 34 16 16 20 37 8.0 8.0 100 0538+2539 ONE LINE REFERS TO EVENING DATE NEW MOON MAY 01 12:17 UT AND FOLLOWING MORNING. FIRST QUARTER MAY 09 11:57 UT All dates and times are zone HST FULL MOON MAY 16 03:38 UT in upper table (except sid time). LAST QUARTER MAY 23 00:34 UT NEW MOON MAY 31 04:24 UT