KECK OBSERVATORY CALENDAR FOR 2000  -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
    2000      SET                  RISE   SET                  RISE   TWI    MID   DAWN  LENGTH DARK___ 
                      12     18                   18     12            18            18     h    h    %  midnight
 SUN OCT 01  18 20  18 57  19 23         21 34  05 00  05 25  06 03  19 46  00 24  05 25   9.6  7.4  77 1622-1759
 MON OCT 02  18 19  18 56  19 22         22 19  05 00  05 26  06 03  19 49  00 28  05 29   9.6  6.7  69 1713-2020
 TUE OCT 03  18 18  18 56  19 21         23 05  05 00  05 26  06 04  19 52  00 32  05 33   9.6  5.9  61 1804-2143
 WED OCT 04  18 17  18 55  19 20         23 53  05 01  05 26  06 04  19 55  00 36  05 37   9.7  5.1  53 1856-2207
 THU OCT 05  18 16  18 54  19 19         00 43  05 01  05 26  06 04  19 58  00 40  05 41   9.7  4.3  44 1947-2130
 FRI OCT 06  18 16  18 53  19 19         01 33  05 01  05 27  06 04  20 02  00 44  05 45   9.7  3.5  35 2037-1956
 SAT OCT 07  18 15  18 52  19 18         02 25  05 01  05 27  06 05  20 05  00 47  05 49   9.7  2.6  26 2127-1729
 SUN OCT 08  18 14  18 51  19 17         03 16  05 02  05 27  06 05  20 08  00 51  05 54   9.8  1.8  18 2215-1414
 MON OCT 09  18 13  18 51  19 16         04 08  05 02  05 27  06 05  20 11  00 55  05 58   9.8  0.9   9 2303-1018
 TUE OCT 10  18 12  18 50  19 15  16 37  05 00  05 02  05 28  06 05  20 14  00 59  06 02   9.8  0.0   0 2351-0551
 WED OCT 11  18 11  18 49  19 15  17 15  05 53  05 02  05 28  06 06  20 17  01 03  06 06   9.8  0.0   0 0039-0101
 THU OCT 12  18 11  18 48  19 14  17 54  06 48  05 03  05 28  06 06  20 20  01 07  06 11   9.8  0.0   0 0129+0357
 FRI OCT 13  18 10  18 48  19 13  18 34  07 44  05 03  05 29  06 06  20 23  01 11  06 15   9.8  0.0   0 0219+0851
 SAT OCT 14  18 09  18 47  19 12  19 16         05 03  05 29  06 07  20 26  01 15  06 19   9.8  0.1   0 0312+1323
 SUN OCT 15  18 08  18 46  19 12  20 02         05 03  05 29  06 07  20 30  01 19  06 23   9.8  0.8   8 0408+1715
 MON OCT 16  18 08  18 45  19 11  20 52         05 04  05 29  06 07  20 33  01 23  06 28   9.9  1.7  17 0506+2010
 TUE OCT 17  18 07  18 45  19 10  21 46         05 04  05 30  06 08  20 36  01 27  06 32   9.9  2.6  26 0606+2152
 WED OCT 18  18 06  18 44  19 10  22 45         05 04  05 30  06 08  20 40  01 31  06 36   9.9  3.6  36 0707+2212
 THU OCT 19  18 06  18 43  19 09  23 46         05 05  05 30  06 08  20 43  01 35  06 41   9.9  4.6  46 0807+2107
 FRI OCT 20  18 05  18 43  19 08  00 47         05 05  05 31  06 09  20 46  01 39  06 45  10.0  5.7  56 0907+1843
 SAT OCT 21  18 04  18 42  19 08  01 49         05 05  05 31  06 09  20 50  01 43  06 49  10.0  6.7  67 1004+1512
 SUN OCT 22  18 03  18 42  19 07  02 49         05 06  05 31  06 09  20 53  01 47  06 53  10.0  7.7  77 1058+1051
 MON OCT 23  18 03  18 41  19 07  03 47  16 02  05 06  05 32  06 10  20 57  01 51  06 57  10.0  8.7  86 1151+0556
 TUE OCT 24  18 02  18 40  19 06  04 44  16 43  05 06  05 32  06 10  21 00  01 55  07 01  10.0  9.6  96 1242+0047
 WED OCT 25  18 02  18 40  19 06  05 39  17 24  05 06  05 32  06 10  21 04  01 58  07 05  10.0 10.0 100 1332-0419
 THU OCT 26  18 01  18 39  19 05  06 34  18 04  05 07  05 33  06 11  21 07  02 02  07 10  10.0 10.0 100 1422-0908
 FRI OCT 27  18 00  18 39  19 05  07 29  18 45  05 07  05 33  06 11  21 11  02 06  07 14  10.0 10.0 100 1513-1327
 SAT OCT 28  18 00  18 38  19 04         19 27  05 07  05 33  06 12  21 13  02 10  07 18  10.0  9.7  96 1603-1703
 SUN OCT 29  17 59  18 38  19 04         20 11  05 08  05 34  06 12  21 17  02 14  07 23  10.1  9.0  88 1655-1948
 MON OCT 30  17 59  18 37  19 03         20 57  05 08  05 34  06 13  21 20  02 18  07 27  10.1  8.2  81 1746-2135
 TUE OCT 31  17 58  18 37  19 03         21 45  05 09  05 35  06 13  21 24  02 22  07 32  10.1  7.4  73 1838-2221

                ONE LINE REFERS TO EVENING DATE    FIRST QUARTER  OCT 05   11:03  UT
                AND FOLLOWING MORNING.             FULL MOON      OCT 13   08:55  UT
                All dates and times are zone HST   LAST QUARTER   OCT 20   08:03  UT
                in upper table (except sid time).  NEW MOON       OCT 27   08:00  UT