KECK OBSERVATORY CALENDAR FOR 2001  -NAUTICAL
                                 (computed for altitude 4145.0 m)
                                                                       NAUTICAL(12 deg)  TWILIGHT/DAWN    MOON
  DATE(HST)   SUN   TWILIGHT ENDS  MOON   MOON   DAWN BEGINS   SUN     SIDEREAL TIMES    NIGHT (12 deg)  RA DEC
    2001      SET                  RISE   SET                  RISE   TWI    MID   DAWN  LENGTH DARK___ 
                      12     18                   18     12            12            12     h    h    %  midnight
 WED AUG 01  19 10  19 50  20 18  17 17  04 51  04 38  05 06  05 47  16 12  20 22  01 29   9.3  0.2   2 1932-2306
 THU AUG 02  19 09  19 50  20 18  18 06  05 43  04 39  05 07  05 47  16 16  20 26  01 34   9.3  0.0   0 2023-2146
 FRI AUG 03  19 09  19 49  20 17  18 50  06 34  04 39  05 07  05 48  16 19  20 30  01 38   9.3  0.0   0 2113-1928
 SAT AUG 04  19 08  19 48  20 16  19 32  07 24  04 40  05 08  05 48  16 22  20 34  01 43   9.3  0.0   0 2201-1621
 SUN AUG 05  19 07  19 48  20 16  20 10         04 40  05 08  05 48  16 25  20 38  01 47   9.3  0.4   3 2248-1235
 MON AUG 06  19 07  19 47  20 15  20 46         04 41  05 09  05 49  16 28  20 42  01 52   9.4  1.0  10 2332-0820
 TUE AUG 07  19 06  19 46  20 14  21 21         04 41  05 09  05 49  16 31  20 46  01 56   9.4  1.6  16 0017-0345
 WED AUG 08  19 06  19 46  20 14  21 55         04 42  05 09  05 49  16 35  20 50  02 00   9.4  2.1  22 0101+0101
 THU AUG 09  19 05  19 45  20 13  22 29         04 42  05 10  05 50  16 38  20 54  02 05   9.4  2.7  29 0146+0548
 FRI AUG 10  19 04  19 44  20 12  23 05         04 43  05 10  05 50  16 41  20 58  02 09   9.4  3.4  35 0232+1027
 SAT AUG 11  19 04  19 44  20 11  23 45         04 43  05 11  05 50  16 45  21 02  02 14   9.4  4.0  42 0321+1447
 SUN AUG 12  19 03  19 43  20 11  00 28         04 44  05 11  05 51  16 48  21 06  02 18   9.5  4.7  50 0414+1831
 MON AUG 13  19 03  19 42  20 10  01 17         04 44  05 12  05 51  16 51  21 10  02 23   9.5  5.6  58 0510+2125
 TUE AUG 14  19 02  19 41  20 09  02 12         04 44  05 12  05 51  16 54  21 14  02 26   9.5  6.5  68 0610+2308
 WED AUG 15  19 01  19 41  20 08  03 13  16 18  04 45  05 12  05 52  16 58  21 18  02 30   9.5  7.5  79 0713+2323
 THU AUG 16  19 00  19 40  20 07  04 19  17 19  04 45  05 13  05 52  17 01  21 22  02 35   9.6  8.7  90 0817+2201
 FRI AUG 17  19 00  19 39  20 06  05 26  18 17  04 46  05 13  05 52  17 04  21 25  02 39   9.6  9.6 100 0920+1903
 SAT AUG 18  18 59  19 38  20 05  06 34  19 11  04 46  05 13  05 53  17 07  21 29  02 43   9.6  9.6 100 1022+1445
 SUN AUG 19  18 58  19 37  20 05  07 39  19 59  04 47  05 14  05 53  17 10  21 33  02 48   9.6  9.2  96 1120+0930
 MON AUG 20  18 58  19 37  20 04         20 45  04 47  05 14  05 53  17 14  21 37  02 52   9.6  8.5  88 1216+0346
 TUE AUG 21  18 57  19 36  20 03         21 28  04 47  05 14  05 54  17 17  21 41  02 56   9.6  7.8  80 1310-0203
 WED AUG 22  18 56  19 35  20 02         22 10  04 48  05 15  05 54  17 19  21 45  03 01   9.7  7.1  73 1402-0737
 THU AUG 23  18 55  19 34  20 01         22 52  04 48  05 15  05 54  17 22  21 49  03 05   9.7  6.4  65 1455-1237
 FRI AUG 24  18 54  19 33  20 00         23 35  04 49  05 15  05 54  17 25  21 53  03 09   9.7  5.7  58 1547-1651
 SAT AUG 25  18 54  19 32  19 59         00 20  04 49  05 16  05 55  17 28  21 57  03 14   9.7  4.9  50 1640-2007
 SUN AUG 26  18 53  19 32  19 58         01 07  04 49  05 16  05 55  17 32  22 01  03 18   9.7  4.2  42 1733-2220
 MON AUG 27  18 52  19 31  19 57         01 56  04 50  05 16  05 55  17 35  22 05  03 22   9.8  3.3  34 1826-2326
 TUE AUG 28  18 51  19 30  19 56         02 47  04 50  05 17  05 55  17 38  22 09  03 27   9.8  2.5  25 1919-2323
 WED AUG 29  18 50  19 29  19 55  16 03  03 38  04 51  05 17  05 56  17 41  22 13  03 31   9.8  1.7  16 2011-2216
 THU AUG 30  18 49  19 28  19 54  16 49  04 30  04 51  05 17  05 56  17 44  22 17  03 35   9.8  0.8   7 2101-2010
 FRI AUG 31  18 49  19 27  19 53  17 31  05 21  04 51  05 18  05 56  17 47  22 21  03 40   9.8  0.0   0 2149-1712

                ONE LINE REFERS TO EVENING DATE    FULL MOON      AUG 04   05:57  UT
                AND FOLLOWING MORNING.             LAST QUARTER   AUG 12   07:56  UT
                All dates and times are zone HST   NEW MOON       AUG 19   02:57  UT
                in upper table (except sid time).  FIRST QUARTER  AUG 25   19:56  UT