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ASTROMETRIC UPDATE:
OCCULTATION BY (876) SCOTT - 2007 OCT 03

[Detailed Finder Charts]


Updated:   2007 SEP 25, 22:40 UT

Event Rank : 26

(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.

Scott Update Map


On 2007 Oct 03 UT, the 22 km diameter asteroid (876) Scott will occult a 10.4 mag star in the constellation Cetus for observers along a narrow, significant uncertainty path beginning near Geraldton and running across western and northern Western Australia, leaving near Broome.

In the case of an occultation, the combined light of the asteroid and the star will drop by 4.6 mag to 15.0 mag (the magnitude of the asteroid) for at most 2.6 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: UCAC.

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
    111 11 19   -34  0  0   20 32 36    46   319   -20  111  0 41  111 21 59  110  6 38  112 16 38
    111 48  2   -33  0  0   20 32 22    47   318   -20  111 37 27  111 58 38  110 43 45  112 52 57
    112 25 24   -32  0  0   20 32  8    47   317   -20  112 14 52  112 35 56  111 21 28  113 29 58
    113  3 25   -31  0  0   20 31 54    48   315   -20  112 52 57  113 13 54  111 59 48  114  7 41
    113 42  7   -30  0  0   20 31 40    48   314   -20  113 31 41  113 52 34  112 38 47  114 46  7

    114 21 32   -29  0  0   20 31 25    48   312   -20  114 11  8  114 31 56  113 18 25  115 25 18
    115  1 40   -28  0  0   20 31 11    49   311   -19  114 51 18  115 12  2  113 58 44  116  5 15
    115 42 33   -27  0  0   20 30 56    49   309   -19  115 32 13  115 52 54  114 39 47  116 46  1
    116 24 13   -26  0  0   20 30 41    49   308   -19  116 13 54  116 34 33  115 21 33  117 27 35
    117  6 42   -25  0  0   20 30 26    49   306   -18  116 56 23  117 17  2  116  4  6  118 10  1

    117 50  1   -24  0  0   20 30 11    49   304   -18  117 39 42  118  0 21  116 47 26  118 53 20
    118 34 13   -23  0  0   20 29 55    49   303   -18  118 23 54  118 44 33  117 31 37  119 37 34
    119 19 19   -22  0  0   20 29 40    49   301   -17  119  9  0  119 29 40  118 16 40  120 22 46
    120  5 23   -21  0  0   20 29 24    49   300   -17  119 55  3  120 15 45  119  2 37  121  8 58
    120 52 27   -20  0  0   20 29  9    49   298   -16  120 42  5  121  2 51  119 49 31  121 56 13

    121 40 34   -19  0  0   20 28 53    49   296   -16  121 30  9  121 50 59  120 37 25  122 44 34
    122 29 46   -18  0  0   20 28 37    49   295   -15  122 19 19  122 40 15  121 26 22  123 34  4
    123 20  8   -17  0  0   20 28 21    48   293   -15  123  9 37  123 30 40  122 16 24  124 24 47
    124 11 43   -16  0  0   20 28  5    48   291   -14  124  1  8  124 22 19  123  7 37  125 16 46
    125  4 35   -15  0  0   20 27 48    48   290   -14  124 53 56  125 15 15  124  0  3  126 10  7

    125 58 48   -14  0  0   20 27 32    47   288   -13  125 48  4  126  9 34  124 53 46  127  4 53
    126 54 28   -13  0  0   20 27 15    47   287   -12  126 43 39  127  5 20  125 48 52  128  1 11
    127 51 41   -12  0  0   20 26 59    46   285   -11  127 40 44  128  2 39  126 45 25  128 59  6
    128 50 31   -11  0  0   20 26 42    46   284   -11  128 39 27  129  1 37  127 43 31  129 58 45
    129 51  7   -10  0  0   20 26 26    45   283   -10  129 39 54  130  2 21  128 43 17  131  0 14

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