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ASTROMETRIC UPDATE:
OCCULTATION BY (3687) DZUS - 2007 OCT 07

[Detailed Finder Charts]


Updated:   2007 SEP 25, 22:56 UT

Event Rank : 27

(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.

Dzus Update Map


On 2007 Oct 07 UT, the 29 km diameter asteroid (3687) Dzus will occult a 8.7 mag star in the constellation Pegasus for observers along a large uncertainty path running down the Northern Territory/Queensland border, then gradually into New South Wales and over into Victoria,

In the case of an occultation, the combined light of the asteroid and the star will drop by 5.9 mag to 14.6 mag (the magnitude of the asteroid) for at most 3.2 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
    154 15  3   -41  0  0   16  5 40     6   293   -32  153 39  2  154 52 19  150 56 41  158 20 27
    152 17 45   -40  0  0   16  5 36     7   294   -33  151 45 45  152 50 39  149 19  0  155 48 35
    150 37 45   -39  0  0   16  5 31     9   295   -35  150  8 37  151  7 34  147 53 32  153 45 48
    149 10 49   -38  0  0   16  5 25    10   296   -37  148 43 52  149 38 19  146 37 54  152  2 27
    147 54 17   -37  0  0   16  5 19    12   297   -38  147 29  2  148 19 56  145 30 27  150 33 23

    146 46 16   -36  0  0   16  5 12    13   297   -39  146 22 27  147 10 28  144 29 57  149 15 26
    145 45 29   -35  0  0   16  5  5    14   298   -41  145 22 50  146  8 27  143 35 28  148  6 31
    144 50 55   -34  0  0   16  4 58    15   298   -42  144 29 15  145 12 51  142 46 17  147  5 11
    144  1 46   -33  0  0   16  4 50    17   299   -43  143 40 57  144 22 50  142  1 48  146 10 19
    143 17 27   -32  0  0   16  4 42    18   299   -44  142 57 23  143 37 45  141 21 32  145 21  5

    142 37 28   -31  0  0   16  4 34    19   299   -45  142 18  2  142 57  6  140 45  6  144 36 49
    142  1 23   -30  0  0   16  4 26    20   299   -47  141 42 31  142 20 26  140 12 11  143 57  0
    141 28 53   -29  0  0   16  4 17    20   299   -48  141 10 31  141 47 24  139 42 28  143 21 12
    140 59 39   -28  0  0   16  4  8    21   299   -49  140 41 44  141 17 43  139 15 45  142 49  4
    140 33 28   -27  0  0   16  3 59    22   299   -50  140 15 57  140 51  7  138 51 48  142 20 18

    140 10  6   -26  0  0   16  3 50    23   299   -51  139 52 57  140 27 24  138 30 27  141 54 38
    139 49 24   -25  0  0   16  3 41    24   299   -52  139 32 34  140  6 22  138 11 33  141 31 52
    139 31 11   -24  0  0   16  3 31    25   299   -53  139 14 38  139 47 51  137 54 57  141 11 48
    139 15 19   -23  0  0   16  3 21    25   298   -54  138 59  2  139 31 43  137 40 33  140 54 18
    139  1 42   -22  0  0   16  3 11    26   298   -55  138 45 38  139 17 52  137 28 14  140 39 13

    138 50 13   -21  0  0   16  3  1    27   298   -55  138 34 22  139  6 10  137 17 55  140 26 25
    138 40 46   -20  0  0   16  2 51    27   298   -56  138 25  6  138 56 32  137  9 31  140 15 48
    138 33 18   -19  0  0   16  2 40    28   297   -57  138 17 48  138 48 54  137  2 59  140  7 18
    138 27 44   -18  0  0   16  2 29    28   297   -58  138 12 22  138 43 11  136 58 13  140  0 50
    138 24  0   -17  0  0   16  2 19    29   296   -59  138  8 46  138 39 20  136 55 12  139 56 19

    138 22  4   -16  0  0   16  2  8    30   296   -59  138  6 56  138 37 17  136 53 53  139 53 43
    138 21 53   -15  0  0   16  1 56    30   295   -60  138  6 51  138 37  1  136 54 13  139 52 58
    138 23 25   -14  0  0   16  1 45    30   295   -61  138  8 28  138 38 29  136 56 11  139 54  2
    138 26 39   -13  0  0   16  1 34    31   294   -61  138 11 45  138 41 39  136 59 45  139 56 54
    138 31 33   -12  0  0   16  1 22    31   294   -62  138 16 41  138 46 30  137  4 54  140  1 32

    138 38  6   -11  0  0   16  1 10    32   293   -63  138 23 16  138 53  2  137 11 37  140  7 55
    138 46 18   -10  0  0   16  0 58    32   293   -63  138 31 29  139  1 13  137 19 54  140 16  3

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