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
 SAT MAR 01  18 37  19 15  19 40  06 34  17 47  05 28  05 54  06 32  05 57  10 17  15 46   9.8  9.8 100 2232-1430
 SUN MAR 02  18 37  19 15  19 40  07 10  18 39  05 28  05 53  06 31  06 00  10 21  15 50   9.8  9.8 100 2319-0937
 MON MAR 03  18 38  19 15  19 41  07 44  19 30  05 27  05 52  06 30  06 05  10 25  15 53   9.8  9.8 100 0004-0425
 TUE MAR 04  18 38  19 16  19 41         20 19  05 26  05 52  06 29  06 09  10 29  15 56   9.8  9.1  93 0047+0052
 WED MAR 05  18 38  19 16  19 41         21 07  05 25  05 51  06 28  06 13  10 33  15 59   9.7  8.3  85 0130+0604
 THU MAR 06  18 39  19 16  19 42         21 56  05 25  05 50  06 28  06 18  10 37  16 03   9.7  7.5  77 0214+1102
 FRI MAR 07  18 39  19 16  19 42         22 45  05 24  05 49  06 27  06 22  10 41  16 06   9.7  6.7  68 0259+1535
 SAT MAR 08  18 39  19 17  19 42         23 36  05 23  05 49  06 26  06 26  10 45  16 09   9.7  5.8  59 0346+1933
 SUN MAR 09  18 40  19 17  19 43         00 29  05 22  05 48  06 25  06 31  10 49  16 12   9.6  4.9  50 0435+2245
 MON MAR 10  18 40  19 17  19 43         01 23  05 21  05 47  06 24  06 35  10 53  16 15   9.6  4.0  41 0527+2459
 TUE MAR 11  18 40  19 18  19 43         02 18  05 21  05 46  06 24  06 39  10 57  16 19   9.6  3.0  31 0622+2605
 WED MAR 12  18 40  19 18  19 44         03 13  05 20  05 45  06 23  06 44  11 01  16 22   9.6  2.1  22 0719+2550
 THU MAR 13  18 41  19 18  19 44         04 05  05 19  05 44  06 22  06 48  11 05  16 24   9.6  1.2  12 0817+2409
 FRI MAR 14  18 41  19 19  19 44         04 54  05 18  05 44  06 21  06 52  11 09  16 27   9.6  0.4   4 0914+2101
 SAT MAR 15  18 41  19 19  19 44         05 40  05 17  05 43  06 20  06 56  11 12  16 30   9.5  0.0   0 1011+1635
 SUN MAR 16  18 42  19 19  19 45  17 02  06 24  05 16  05 42  06 19  07 01  11 16  16 33   9.5  0.0   0 1106+1104
 MON MAR 17  18 42  19 19  19 45  18 05  07 06  05 15  05 41  06 19  07 05  11 20  16 36   9.5  0.0   0 1200+0448
 TUE MAR 18  18 42  19 20  19 45  19 07  07 47  05 15  05 40  06 18  07 09  11 24  16 40   9.5  0.0   0 1254-0146
 WED MAR 19  18 42  19 20  19 46  20 09         05 14  05 39  06 17  07 14  11 28  16 43   9.5  0.4   4 1349-0817
 THU MAR 20  18 43  19 20  19 46  21 12         05 13  05 38  06 16  07 17  11 32  16 46   9.5  1.4  15 1445-1417
 FRI MAR 21  18 43  19 21  19 46  22 16         05 12  05 38  06 15  07 21  11 36  16 49   9.4  2.5  26 1542-1922
 SAT MAR 22  18 43  19 21  19 47  23 21         05 11  05 37  06 14  07 26  11 40  16 52   9.4  3.6  37 1642-2312
 SUN MAR 23  18 44  19 21  19 47  00 24         05 10  05 36  06 13  07 30  11 44  16 55   9.4  4.6  49 1742-2531
 MON MAR 24  18 44  19 21  19 47  01 25         05 09  05 35  06 12  07 34  11 48  16 58   9.4  5.6  60 1843-2615
 TUE MAR 25  18 44  19 22  19 47  02 20         05 08  05 34  06 12  07 38  11 52  17 01   9.4  6.6  70 1942-2526
 WED MAR 26  18 44  19 22  19 48  03 10         05 07  05 33  06 11  07 43  11 56  17 04   9.3  7.4  79 2038-2314
 THU MAR 27  18 45  19 22  19 48  03 55         05 06  05 32  06 10  07 47  12 00  17 07   9.3  8.1  87 2131-1955
 FRI MAR 28  18 45  19 23  19 48  04 35         05 05  05 31  06 09  07 51  12 04  17 10   9.3  8.8  94 2220-1545
 SAT MAR 29  18 45  19 23  19 49  05 11  16 35  05 04  05 30  06 08  07 56  12 08  17 12   9.2  9.2 100 2307-1059
 SUN MAR 30  18 45  19 23  19 49  05 45  17 25  05 04  05 29  06 07  08 00  12 12  17 16   9.2  9.2 100 2352-0551
 MON MAR 31  18 46  19 24  19 49  06 17  18 14  05 03  05 29  06 06  08 04  12 16  17 19   9.2  9.2 100 0035-0034

                ONE LINE REFERS TO EVENING DATE    NEW MOON       MAR 03   02:36  UT
                AND FOLLOWING MORNING.             FIRST QUARTER  MAR 11   07:18  UT
                All dates and times are zone HST   FULL MOON      MAR 18   10:36  UT
                in upper table (except sid time).  LAST QUARTER   MAR 25   01:54  UT