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ASTROMETRIC UPDATE:
OCCULTATION BY (859) BOUZAREAH - 2009 Dec 22

[Edwin Goffin's Prediction + Finder Charts]

[Detailed Finder Charts]


Updated:   2009 DEC 15, 18:35 UT

Event Rank : 92

(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.

Bouzareah Update Map


On 2009 Dec 22 UT, the 74 km diameter asteroid (859) Bouzareah will occult a 7.7 mag star in the constellation Auriga for observers along a path across Australia from northeastern New South Wales at low elevation across Queensland near Mt Isa and across The Northern Territory to just south of Darwin.

In the case of an occultation, the combined light of the asteroid and the star will drop by 6.2 mag to 13.9 mag (the magnitude of the asteroid) for at most 5.9 seconds.

This update is based on UNSO/Flagstaff astrometry for the asteroid kindly provided by Alice Monet, TMO astrometry for the asteroid kindly provided by Bill Owen, 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
    157 50 28   -39  0  0   16 45 17     0   327   -12  158 32 58  157  7 42  ... .. ..  156 25 33
    156 59 18   -38  0  0   16 45 17     2   327   -14  157 41 33  156 16 49  ... .. ..  155 34 55
    156  7 38   -37  0  0   16 45 17     3   328   -15  156 49 38  155 25 23  ... .. ..  154 43 43
    155 15 24   -36  0  0   16 45 18     4   328   -16  155 57 12  154 33 21  156 37 54  153 51 52
    154 22 33   -35  0  0   16 45 19     5   329   -17  155  4 10  153 40 39  155 44 43  152 59 20

    153 29  1   -34  0  0   16 45 21     7   329   -18  154 10 31  152 47 15  154 50 55  152  6  2
    152 34 46   -33  0  0   16 45 23     8   330   -20  153 16 10  151 53  6  153 56 27  151 11 57
    151 39 44   -32  0  0   16 45 25     9   330   -21  152 21  4  150 58  6  153  1 17  150 17  1
    150 43 51   -31  0  0   16 45 27    10   331   -22  151 25  9  150  2 14  152  5 20  149 21  9
    149 47  3   -30  0  0   16 45 30    12   331   -23  150 28 22  149  5 25  151  8 33  148 24 17

    148 49 16   -29  0  0   16 45 34    13   332   -25  149 30 38  148  7 34  150 10 52  147 26 22
    147 50 27   -28  0  0   16 45 37    14   332   -26  148 31 54  147  8 38  149 12 13  146 27 19
    146 50 29   -27  0  0   16 45 41    15   333   -27  147 32  5  146  8 32  148 12 30  145 27  4
    145 49 19   -26  0  0   16 45 46    17   334   -29  146 31  5  145  7 10  147 11 40  144 25 29
    144 46 50   -25  0  0   16 45 50    18   334   -30  145 28 50  144  4 27  146  9 37  143 22 31

    143 42 58   -24  0  0   16 45 56    19   335   -31  144 25 14  143  0 17  145  6 16  142 18  2
    142 37 34   -23  0  0   16 46  1    21   335   -33  143 20 10  141 54 32  144  1 30  141 11 56
    141 30 33   -22  0  0   16 46  7    22   336   -34  142 13 32  140 47  7  142 55 13  140  4  5
    140 21 46   -21  0  0   16 46 14    23   337   -36  141  5 12  139 37 51  141 47 18  138 54 20
    139 11  5   -20  0  0   16 46 21    25   337   -37  139 55  2  138 26 37  140 37 37  137 42 31

    137 58 19   -19  0  0   16 46 29    26   338   -39  138 42 52  137 13 14  139 26  0  136 28 28
    136 43 18   -18  0  0   16 46 37    27   339   -40  137 28 32  135 57 29  138 12 17  135 11 59
    135 25 49   -17  0  0   16 46 46    29   339   -42  136 11 49  134 39 11  136 56 18  133 52 49
    134  5 38   -16  0  0   16 46 55    30   340   -43  134 52 31  133 18  2  135 37 49  132 30 41
    132 42 26   -15  0  0   16 47  5    31   341   -45  133 30 21  131 53 46  134 16 35  131  5 17

    131 15 56   -14  0  0   16 47 16    33   342   -46  132  5  1  130 26  1  132 52 20  129 36 14
    129 45 43   -13  0  0   16 47 27    34   343   -48  130 36  9  128 54 22  131 24 42  128  3  4
    128 11 20   -12  0  0   16 47 39    35   344   -49  129  3 19  127 18 18  129 53 18  126 25 14
    126 32 12   -11  0  0   16 47 52    37   345   -51  127 26  1  125 37 12  128 17 40  124 42  3

Uncertainty in time = +/- 4 secs

Prediction of 2009 Dec 16.0

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