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ASTROMETRIC UPDATE:
OCCULTATION BY (1468) ZOMBA - 2010 Dec 04

[Detailed Finder Charts]


Updated:   2010 OCT 14, 10:08 UT

Event Rank : 38

(The event Rank is a measure of the likelihood of observing an event, and is equal to the probability of at least one successful observation by a team of two observers spaced 1/8 path width just inside opposite sides of the predicted path. An event rank of 100 indicates that the prediction is expected to be very accurate).


THE UPDATED PATH

Note: The duration given in the line below is the interval during which the occultation shadow sweeps across the Earth - please see the minute markers on the map to determine the approximate time for your location.

Zomba Update Map


On 2010 Dec 04 UT, the 18 km diameter asteroid (1468) Zomba will occult a 7.8 mag star in the constellation Perseus for observers along a narrow path across Australia from CApe York across central Northern Territory and Western Australia to just north of Perth.

In the case of an occultation, the combined light of the asteroid and the star will drop by 7.4 mag to 15.2 mag (the magnitude of the asteroid) for at most 1.7 seconds.

This update is based on UNSO/Flagstaff astrometry for the asteroid kindly provided by Alice Monet, historical astrometry from the MPC files (via AstDys), and the following catalogs for the star position: .

Additional details of this and other events are available at Steve Preston's website at http://www.asteroidoccultation.com/

EVENT DETAILS SUMMARY : Data for the target star : Data for the minor planet : The Occultation Path :
                   Centre              Star  Star   Sun      Path Limits           Error Limits
  E. Longitude   Latitude      U.T.    Alt    Az   Alt    Limit 1    Limit 2    Limit 3    Limit 4
      o  '  "     o  '  "    h  m  s     o     o     o    o  '  "    o  '  "    o  '  "    o  '  "
                                                        Longitude  Longitude  Longitude  Longitude
    110 41 39   -37  0  0   15 20 27    14    12   -29  110 28 49  110 54 31  109 44 59  111 39  7
    111 29 53   -36  0  0   15 20 22    15    12   -30  111 17  4  111 42 46  110 33 15  112 27 22

    112 19 39   -35  0  0   15 20 16    17    11   -31  112  6 49  112 32 32  111 22 59  113 17 12
    113 11  1   -34  0  0   15 20 10    18    10   -32  112 58  9  113 23 55  112 14 13  114  8 41
    114  4  2   -33  0  0   15 20  4    19    10   -33  113 51  7  114 16 59  113  7  3  115  1 55
    114 58 48   -32  0  0   15 19 57    20     9   -35  114 45 49  115 11 49  114  1 34  115 56 59
    115 55 24   -31  0  0   15 19 49    21     8   -36  115 42 21  116  8 30  114 57 50  116 53 58

    116 53 59   -30  0  0   15 19 41    22     8   -37  116 40 49  117  7 11  115 55 59  117 53  1
    117 54 38   -29  0  0   15 19 33    23     7   -38  117 41 21  118  7 57  116 56  7  118 54 15
    118 57 30   -28  0  0   15 19 24    24     6   -39  118 44  5  119 10 59  117 58 22  119 57 49
    120  2 46   -27  0  0   15 19 14    25     5   -40  119 49 11  120 16 25  119  2 53  121  3 53
    121 10 37   -26  0  0   15 19  3    26     4   -41  120 56 49  121 24 29  120  9 52  122 12 42

    122 21 16   -25  0  0   15 18 52    28     3   -43  122  7 14  122 35 22  121 19 30  123 24 28
    123 34 58   -24  0  0   15 18 41    29     2   -44  123 20 40  123 49 22  122 32  1  124 39 29
    124 52  3   -23  0  0   15 18 28    30     1   -45  124 37 25  125  6 46  123 47 42  125 58  6
    126 12 52   -22  0  0   15 18 15    31   360   -46  125 57 51  126 27 58  125  6 53  127 20 43
    127 37 51   -21  0  0   15 18  1    32   359   -47  127 22 23  127 53 25  126 29 58  128 47 50

    129  7 34   -20  0  0   15 17 46    33   357   -48  128 51 35  129 23 41  127 57 25  130 20  5
    130 42 43   -19  0  0   15 17 29    33   356   -49  130 26  5  130 59 29  129 29 52  131 58 17
    132 24  9   -18  0  0   15 17 12    34   354   -50  132  6 45  132 41 43  131  8  2  133 43 26
    134 13  3   -17  0  0   15 16 53    35   353   -50  133 54 42  134 31 36  132 52 56  135 36 59
    136 11  2   -16  0  0   15 16 33    36   351   -51  135 51 28  136 30 50  134 45 53  137 40 54

    138 20 22   -15  0  0   15 16 11    36   348   -52  137 59 13  138 41 48  136 48 41  139 58  9
                                                         Latitude   Latitude   Latitude   Latitude
    139  0  0   -14 42 47   15 16  4    37   348   -52  -14 33 28  -14 52  9  -14  1 42  -15 24 36
    140  0  0   -14 17 47   15 15 53    37   347   -52  -14  8 32  -14 27  3  -13 37  1  -14 59 14
    141  0  0   -13 54  0   15 15 43    37   346   -52  -13 44 50  -14  3 12  -13 13 34  -14 35  7
    142  0  0   -13 31 26   15 15 33    37   345   -52  -13 22 20  -13 40 34  -12 51 18  -14 12 14

    143  0  0   -13 10  4   15 15 22    37   344   -52  -13  1  2  -13 19  8  -12 30 12  -13 50 35
    144  0  0   -12 49 53   15 15 12    37   343   -52  -12 40 55  -12 58 53  -12 10 17  -13 30  8
    145  0  0   -12 30 53   15 15  2    37   342   -52  -12 21 58  -12 39 50  -11 51 31  -13 10 52
    146  0  0   -12 13  2   15 14 52    37   341   -52  -12  4 10  -12 21 56  -11 33 54  -12 52 47
    147  0  0   -11 56 21   15 14 42    37   340   -52  -11 47 32  -12  5 12  -11 17 25  -12 35 53

    148  0  0   -11 40 48   15 14 32    37   339   -51  -11 32  1  -11 49 36  -11  2  4  -12 20  8
    149  0  0   -11 26 23   15 14 22    37   338   -51  -11 17 39  -11 35  9  -10 47 50  -12  5 32
    150  0  0   -11 13  5   15 14 12    37   337   -51  -11  4 24  -11 21 49  -10 34 42  -11 52  4
    151  0  0   -11  0 55   15 14  2    37   336   -50  -10 52 15  -11  9 36  -10 22 40  -11 39 45
    152  0  0   -10 49 51   15 13 52    36   336   -50  -10 41 13  -10 58 31  -10 11 43  -11 28 32

Uncertainty in time = +/- 4 secs

Prediction of 2010 Nov 19.0

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