KECK OBSERVATORY CALENDAR FOR 2011 -ASTRONOMICAL (computed for altitude 4160.0 m) ASTRONOMICAL(18 deg) TWILIGHT/DAWN MOON(midnight) DATE(HST) SUN TWILIGHT ENDS MOON MOON DAWN BEGINS SUN SIDEREAL TIMES NIGHT (18 deg) Zenith 2011 SET RISE SET RISE TWI MID DAWN LENGTH DARK___ RA DEC Dist 12 18 18 12 18 18 h h % h m d m deg TUE MAR 01 18 37 19 15 19 40 05 03 16 21 05 28 05 54 06 32 05 57 10 17 15 46 9.8 9.4 95 2105-1313 >90 WED MAR 02 18 37 19 15 19 41 05 39 17 11 05 28 05 53 06 31 06 02 10 21 15 50 9.8 9.8 100 2150-0853 >90 THU MAR 03 18 38 19 15 19 41 06 13 18 00 05 27 05 52 06 30 06 06 10 25 15 53 9.8 9.8 100 2234-0416 >90 FRI MAR 04 18 38 19 16 19 41 06 46 18 48 05 26 05 52 06 29 06 10 10 29 15 56 9.8 9.8 100 2316 0027 >90 SAT MAR 05 18 38 19 16 19 41 19 36 05 25 05 51 06 28 06 14 10 33 15 59 9.7 9.7 100 **** 0507 >90 SUN MAR 06 18 39 19 16 19 42 20 25 05 25 05 50 06 28 06 18 10 37 16 03 9.7 9.0 92 0043 0936 >90 MON MAR 07 18 39 19 17 19 42 21 14 05 24 05 49 06 27 06 22 10 41 16 06 9.7 8.2 84 0128 1345 >90 TUE MAR 08 18 39 19 17 19 42 22 05 05 23 05 49 06 26 06 26 10 45 16 09 9.7 7.3 75 0214 1723 >90 WED MAR 09 18 40 19 17 19 43 22 57 05 22 05 48 06 25 06 31 10 49 16 12 9.6 6.4 66 0303 2021 >90 THU MAR 10 18 40 19 17 19 43 23 51 05 21 05 47 06 24 06 35 10 53 16 15 9.6 5.5 57 0355 2226 >90 FRI MAR 11 18 40 19 18 19 43 00 45 05 21 05 46 06 24 06 39 10 57 16 19 9.6 4.6 47 0450 2326 84 SAT MAR 12 18 40 19 18 19 44 01 38 05 20 05 45 06 23 06 44 11 01 16 22 9.6 3.7 38 0546 2316 72 SUN MAR 13 18 41 19 18 19 44 02 30 05 19 05 44 06 22 06 48 11 05 16 25 9.6 2.8 29 0643 2147 61 MON MAR 14 18 41 19 19 19 44 03 20 05 18 05 44 06 21 06 52 11 09 16 28 9.6 2.0 20 0741 1856 49 TUE MAR 15 18 41 19 19 19 44 14 32 04 07 05 17 05 43 06 20 06 56 11 13 16 31 9.5 1.2 12 0838 1450 37 WED MAR 16 18 42 19 19 19 45 15 35 04 53 05 16 05 42 06 19 07 01 11 17 16 33 9.5 0.4 4 0935 0942 26 THU MAR 17 18 42 19 19 19 45 16 38 05 37 05 15 05 41 06 19 07 05 11 21 16 36 9.5 0.0 0 1032 0350 20 FRI MAR 18 18 42 19 20 19 45 17 41 06 21 05 15 05 40 06 18 07 09 11 24 16 40 9.5 0.0 0 1129-0223 22 SAT MAR 19 18 42 19 20 19 46 18 45 05 14 05 39 06 17 07 14 11 28 16 43 9.5 0.0 0 1226-0830 32 SUN MAR 20 18 43 19 20 19 46 19 50 05 13 05 38 06 16 07 18 11 32 16 46 9.5 0.1 0 1324-1403 44 MON MAR 21 18 43 19 21 19 46 20 54 05 12 05 38 06 15 07 22 11 36 16 49 9.4 1.1 12 1424-1837 56 TUE MAR 22 18 43 19 21 19 47 21 59 05 11 05 37 06 14 07 27 11 40 16 52 9.4 2.2 23 1525-2154 69 WED MAR 23 18 44 19 21 19 47 23 01 05 10 05 36 06 13 07 31 11 44 16 55 9.4 3.2 34 1626-2339 81 THU MAR 24 18 44 19 21 19 47 23 59 05 09 05 35 06 12 07 34 11 48 16 58 9.4 4.2 44 1720-2331 >90 FRI MAR 25 18 44 19 22 19 47 00 53 05 08 05 34 06 12 07 38 11 52 17 01 9.4 5.1 54 1823-2300 >90 SAT MAR 26 18 44 19 22 19 48 01 41 05 07 05 33 06 11 07 43 11 56 17 04 9.3 5.9 63 1917-2051 >90 SUN MAR 27 18 45 19 22 19 48 02 24 05 06 05 32 06 10 07 47 12 00 17 07 9.3 6.6 70 2007-1748 >90 MON MAR 28 18 45 19 23 19 48 03 03 14 18 05 05 05 31 06 09 07 51 12 04 17 10 9.3 7.3 78 2055-1404 >90 TUE MAR 29 18 45 19 23 19 49 03 40 15 08 05 05 05 30 06 08 07 56 12 08 17 14 9.3 7.8 84 2141-0952 >90 WED MAR 30 18 45 19 23 19 49 04 14 15 57 05 04 05 29 06 07 08 00 12 12 17 17 9.2 8.4 90 2225-0521 >90 THU MAR 31 18 46 19 24 19 49 04 48 16 45 05 03 05 29 06 06 08 04 12 16 17 20 9.2 9.0 97 2307-0041 >90 ONE LINE REFERS TO EVENING DATE NEW MOON Mar 04 20:44 UT AND FOLLOWING MORNING. FIRST QUARTER Mar 12 23:47 UT All dates and times are zone HST FULL MOON Mar 19 18:08 UT in upper table (except sid time). LAST QUARTER Mar 26 12:07 UT