KECK OBSERVATORY CALENDAR FOR 2006  -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
    2006      SET                  RISE   SET                  RISE   TWI    MID   DAWN  LENGTH DARK___ 
                      12     18                   18     12            18            18     h    h    %  midnight
 TUE AUG 01  19 10  19 50  20 18         23 49  04 38  05 06  05 47  16 39  20 22  01 00   8.3  4.8  57 1431-1847
 WED AUG 02  19 09  19 50  20 18         00 29  04 39  05 07  05 47  16 43  20 25  01 05   8.4  4.2  49 1522-2300
 THU AUG 03  19 09  19 49  20 17         01 15  04 39  05 07  05 48  16 46  20 29  01 09   8.4  3.4  40 1616-2615
 FRI AUG 04  19 08  19 48  20 16         02 09  04 40  05 08  05 48  16 49  20 33  01 14   8.4  2.5  29 1715-2811
 SAT AUG 05  19 07  19 48  20 16         03 09  04 40  05 08  05 48  16 53  20 37  01 18   8.4  1.5  18 1817-2830
 SUN AUG 06  19 07  19 47  20 15  16 50  04 14  04 41  05 09  05 49  16 56  20 41  01 23   8.4  0.5   5 1920-2658
 MON AUG 07  19 06  19 46  20 14  17 47  05 21  04 41  05 09  05 49  16 59  20 45  01 27   8.4  0.0   0 2023-2338
 TUE AUG 08  19 06  19 46  20 14  18 38  06 28  04 42  05 09  05 49  17 03  20 49  01 32   8.5  0.0   0 2123-1842
 WED AUG 09  19 05  19 45  20 13  19 25  07 33  04 42  05 10  05 50  17 05  20 53  01 36   8.5  0.0   0 2220-1234
 THU AUG 10  19 04  19 44  20 12  20 07         04 43  05 10  05 50  17 08  20 57  01 41   8.5  0.0   0 2314-0542
 FRI AUG 11  19 04  19 44  20 11  20 47         04 43  05 11  05 50  17 11  21 01  01 45   8.5  0.6   7 0007+0124
 SAT AUG 12  19 03  19 43  20 11  21 26         04 44  05 11  05 51  17 15  21 05  01 50   8.6  1.2  14 0059+0820
 SUN AUG 13  19 03  19 42  20 10  22 05         04 44  05 12  05 51  17 18  21 09  01 54   8.6  1.9  22 0151+1442
 MON AUG 14  19 02  19 41  20 09  22 47         04 44  05 12  05 51  17 21  21 13  01 58   8.6  2.6  30 0245+2010
 TUE AUG 15  19 01  19 41  20 08  23 32         04 45  05 12  05 52  17 24  21 17  02 03   8.6  3.4  39 0341+2425
 WED AUG 16  19 00  19 40  20 07  00 22         04 45  05 13  05 52  17 27  21 21  02 06   8.6  4.2  49 0439+2716
 THU AUG 17  19 00  19 39  20 06  01 16         04 46  05 13  05 52  17 30  21 25  02 11   8.7  5.2  59 0537+2833
 FRI AUG 18  18 59  19 38  20 05  02 12         04 46  05 13  05 53  17 33  21 29  02 15   8.7  6.1  70 0635+2817
 SAT AUG 19  18 58  19 37  20 05  03 10  16 33  04 47  05 14  05 53  17 37  21 33  02 20   8.7  7.1  81 0731+2633
 SUN AUG 20  18 58  19 37  20 04  04 06  17 20  04 47  05 14  05 53  17 40  21 36  02 24   8.7  8.0  92 0824+2335
 MON AUG 21  18 57  19 36  20 03  05 00  18 01  04 47  05 14  05 54  17 43  21 40  02 28   8.7  8.7 100 0913+1936
 TUE AUG 22  18 56  19 35  20 02  05 52  18 38  04 48  05 15  05 54  17 46  21 44  02 33   8.8  8.8 100 1000+1453
 WED AUG 23  18 55  19 34  20 01  06 41  19 11  04 48  05 15  05 54  17 49  21 48  02 37   8.8  8.8 100 1044+0938
 THU AUG 24  18 54  19 33  20 00  07 29  19 42  04 49  05 15  05 54  17 52  21 52  02 42   8.8  8.8 100 1126+0406
 FRI AUG 25  18 54  19 32  19 59         20 12  04 49  05 16  05 55  17 55  21 56  02 46   8.8  8.6  97 1207-0133
 SAT AUG 26  18 53  19 32  19 58         20 42  04 49  05 16  05 55  17 57  22 00  02 50   8.8  8.1  91 1249-0710
 SUN AUG 27  18 52  19 31  19 57         21 14  04 50  05 16  05 55  18 00  22 04  02 55   8.9  7.6  85 1332-1233
 MON AUG 28  18 51  19 30  19 56         21 48  04 50  05 17  05 55  18 03  22 08  02 59   8.9  7.0  79 1417-1733
 TUE AUG 29  18 50  19 29  19 55         22 25  04 51  05 17  05 56  18 06  22 12  03 04   8.9  6.4  72 1505-2156
 WED AUG 30  18 49  19 28  19 54         23 08  04 51  05 17  05 56  18 09  22 16  03 08   9.0  5.7  63 1557-2526
 THU AUG 31  18 49  19 27  19 53         23 57  04 51  05 18  05 56  18 12  22 20  03 12   9.0  4.9  54 1653-2748

                ONE LINE REFERS TO EVENING DATE    FIRST QUARTER  AUG 02   08:47  UT
                AND FOLLOWING MORNING.             FULL MOON      AUG 09   10:56  UT
                All dates and times are zone HST   LAST QUARTER   AUG 16   01:53  UT
                in upper table (except sid time).  NEW MOON       AUG 23   19:10  UT
                                                   FIRST QUARTER  AUG 31   22:59  UT