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 MON DEC 01 17 52 18 32 18 59 01 51 05 23 05 50 06 30 23 20 04 21 09 45 10.4 3.5 33 0008-0329 TUE DEC 02 17 52 18 33 18 59 02 41 05 23 05 50 06 30 23 24 04 25 09 49 10.4 2.7 25 0051+0203 WED DEC 03 17 53 18 33 19 00 03 29 05 24 05 51 06 31 23 29 04 29 09 54 10.4 1.9 18 0135+0727 THU DEC 04 17 53 18 33 19 00 04 19 05 24 05 51 06 32 23 32 04 33 09 58 10.4 1.1 10 0219+1232 FRI DEC 05 17 53 18 33 19 00 05 09 05 25 05 52 06 32 23 36 04 37 10 03 10.4 0.3 2 0304+1708 SAT DEC 06 17 53 18 33 19 00 16 13 06 02 05 25 05 52 06 33 23 40 04 41 10 07 10.4 0.0 0 0351+2105 SUN DEC 07 17 53 18 34 19 01 16 53 06 55 05 26 05 53 06 33 23 45 04 45 10 12 10.4 0.0 0 0441+2409 MON DEC 08 17 54 18 34 19 01 17 36 07 48 05 27 05 54 06 34 23 49 04 49 10 17 10.4 0.0 0 0532+2612 TUE DEC 09 17 54 18 34 19 01 18 25 05 27 05 54 06 35 23 53 04 53 10 21 10.4 0.0 0 0626+2702 WED DEC 10 17 54 18 35 19 02 19 16 05 28 05 55 06 35 23 58 04 57 10 26 10.4 0.2 2 0720+2636 THU DEC 11 17 55 18 35 19 02 20 11 05 28 05 55 06 36 00 02 05 01 10 30 10.4 1.1 11 0813+2454 FRI DEC 12 17 55 18 35 19 02 21 07 05 29 05 56 06 36 00 06 05 05 10 35 10.5 2.1 19 0906+2159 SAT DEC 13 17 55 18 36 19 03 22 03 05 29 05 56 06 37 00 11 05 09 10 39 10.4 3.0 28 0957+1801 SUN DEC 14 17 56 18 36 19 03 22 58 05 30 05 57 06 38 00 15 05 13 10 44 10.5 3.9 37 1046+1310 MON DEC 15 17 56 18 37 19 04 23 53 05 30 05 58 06 38 00 20 05 17 10 48 10.4 4.8 46 1134+0736 TUE DEC 16 17 56 18 37 19 04 00 48 05 31 05 58 06 39 00 24 05 21 10 53 10.4 5.7 54 1222+0133 WED DEC 17 17 57 18 37 19 05 01 45 05 31 05 59 06 39 00 29 05 25 10 56 10.4 6.7 63 1312-0444 THU DEC 18 17 57 18 38 19 05 02 45 05 32 05 59 06 40 00 33 05 28 11 01 10.4 7.7 73 1404-1100 FRI DEC 19 17 58 18 38 19 05 03 48 05 33 06 00 06 40 00 37 05 32 11 06 10.5 8.7 83 1500-1649 SAT DEC 20 17 58 18 39 19 06 04 55 05 33 06 00 06 41 00 42 05 36 11 10 10.4 9.8 93 1600-2143 SUN DEC 21 17 59 18 39 19 06 06 04 16 33 05 34 06 01 06 41 00 46 05 40 11 15 10.5 10.5 100 1704-2514 MON DEC 22 17 59 18 40 19 07 07 13 17 34 05 34 06 01 06 42 00 50 05 44 11 19 10.4 10.4 100 1811-2655 TUE DEC 23 18 00 18 40 19 07 18 40 05 35 06 02 06 42 00 54 05 48 11 24 10.5 10.5 100 1918-2636 WED DEC 24 18 00 18 41 19 08 19 47 05 35 06 02 06 43 00 59 05 52 11 28 10.5 9.8 93 2023-2426 THU DEC 25 18 01 18 41 19 08 20 53 05 35 06 03 06 43 01 03 05 56 11 32 10.5 8.7 83 2122-2045 FRI DEC 26 18 01 18 42 19 09 21 54 05 36 06 03 06 44 01 08 06 00 11 37 10.5 7.7 73 2217-1602 SAT DEC 27 18 02 18 42 19 10 22 51 05 36 06 04 06 44 01 13 06 04 11 41 10.4 6.7 64 2307-1040 SUN DEC 28 18 02 18 43 19 10 23 44 05 37 06 04 06 44 01 17 06 08 11 46 10.5 5.9 56 2354-0502 MON DEC 29 18 03 18 43 19 11 00 35 05 37 06 04 06 45 01 22 06 12 11 50 10.4 5.0 48 0039+0037 TUE DEC 30 18 04 18 44 19 11 01 25 05 38 06 05 06 45 01 26 06 16 11 55 10.5 4.2 40 0123+0608 WED DEC 31 18 04 18 45 19 12 02 14 05 38 06 05 06 46 01 31 06 20 11 59 10.4 3.4 32 0206+1120 ONE LINE REFERS TO EVENING DATE FULL MOON DEC 08 20:40 UT AND FOLLOWING MORNING. LAST QUARTER DEC 16 17:46 UT All dates and times are zone HST NEW MOON DEC 23 09:46 UT in upper table (except sid time). FIRST QUARTER DEC 30 10:05 UT