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ASTROMETRIC UPDATE:
OCCULTATION BY (2843) YETI - 2010 Dec 03

[Detailed Finder Charts]


Updated:   2010 JUL 12, 03:32 UT

Event Rank : 7

(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.

Yeti Update Map


On 2010 Dec 03 UT, the 10 km diameter asteroid (2843) Yeti will occult a 9.6 mag star in the constellation Cancer for observers along an extremely narrow path across Australia from east of Darwin to Eucla in south-east Western Australia.

In the case of an occultation, the combined light of the asteroid and the star will drop by 6.6 mag to 16.2 mag (the magnitude of the asteroid) for at most 3.6 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
    127 25 26   -36  0  0   18  2 51    36    12   -20  127 21 58  127 28 53  126 17 18  128 33 26

    127 45 35   -35  0  0   18  2 27    37    12   -21  127 42 10  127 49  0  126 38 18  128 52 46
    128  5 30   -34  0  0   18  2  2    38    12   -22  128  2  7  128  8 53  126 59  1  129 11 53
    128 25 11   -33  0  0   18  1 37    39    12   -22  128 21 51  128 28 32  127 19 28  129 30 49
    128 44 41   -32  0  0   18  1 11    40    12   -23  128 41 23  128 47 59  127 39 41  129 49 36
    129  3 59   -31  0  0   18  0 45    41    11   -24  129  0 43  129  7 16  127 59 41  130  8 14

    129 23  8   -30  0  0   18  0 18    42    11   -24  129 19 54  129 26 22  128 19 28  130 26 43
    129 42  7   -29  0  0   17 59 50    43    11   -25  129 38 55  129 45 19  128 39  4  130 45  5
    130  0 58   -28  0  0   17 59 22    44    11   -25  129 57 47  130  4  8  128 58 30  131  3 21
    130 19 41   -27  0  0   17 58 54    45    11   -26  130 16 32  130 22 49  129 17 47  131 21 31
    130 38 17   -26  0  0   17 58 25    46    11   -27  130 35  9  130 41 24  129 36 54  131 39 36

    130 56 46   -25  0  0   17 57 56    47    11   -27  130 53 41  130 59 52  129 55 54  131 57 36
    131 15 10   -24  0  0   17 57 26    48    11   -28  131 12  6  131 18 15  130 14 46  132 15 32
    131 33 29   -23  0  0   17 56 56    49    11   -28  131 30 26  131 36 32  130 33 32  132 33 24
    131 51 43   -22  0  0   17 56 25    50    11   -29  131 48 42  131 54 45  130 52 12  132 51 13
    132  9 54   -21  0  0   17 55 54    51    11   -29  132  6 53  132 12 54  131 10 46  133  8 59

    132 28  0   -20  0  0   17 55 22    52    11   -30  132 25  1  132 30 59  131 29 15  133 26 44
    132 46  3   -19  0  0   17 54 50    53    11   -31  132 43  5  132 49  1  131 47 39  133 44 26
    133  4  3   -18  0  0   17 54 17    54    11   -31  133  1  6  133  7  1  132  5 59  134  2  6
    133 22  1   -17  0  0   17 53 45    56    11   -32  133 19  5  133 24 57  132 24 15  134 19 46
    133 39 57   -16  0  0   17 53 11    57    11   -32  133 37  1  133 42 52  132 42 28  134 37 24

    133 57 51   -15  0  0   17 52 38    58    11   -33  133 54 56  134  0 45  133  0 38  134 55  2
    134 15 43   -14  0  0   17 52  4    59    11   -33  134 12 49  134 18 37  133 18 46  135 12 39
    134 33 34   -13  0  0   17 51 29    60    11   -34  134 30 41  134 36 27  133 36 50  135 30 17
    134 51 24   -12  0  0   17 50 55    61    11   -34  134 48 31  134 54 16  133 54 53  135 47 54
    135  9 13   -11  0  0   17 50 20    62    11   -35  135  6 21  135 12  5  134 12 54  136  5 32

    135 27  2   -10  0  0   17 49 44    63    11   -35  135 24 11  135 29 53  134 30 53  136 23 10
    135 44 50   - 9  0  0   17 49  8    64    11   -36  135 42  0  135 47 41  134 48 51  136 40 50
    136  2 39   - 8  0  0   17 48 32    65    11   -36  135 59 48  136  5 29  135  6 48  136 58 30
    136 20 27   - 7  0  0   17 47 56    66    11   -36  136 17 37  136 23 17  135 24 44  137 16 11
    136 38 16   - 6  0  0   17 47 20    67    11   -37  136 35 26  136 41  6  135 42 39  137 33 53

    136 56  5   - 5  0  0   17 46 43    68    12   -37  136 53 16  136 58 55  136  0 34  137 51 37
    137 13 55   - 4  0  0   17 46  6    69    12   -38  137 11  6  137 16 44  136 18 28  138  9 23
    137 31 46   - 3  0  0   17 45 28    70    12   -38  137 28 57  137 34 35  136 36 22  138 27 10
    137 49 37   - 2  0  0   17 44 50    71    12   -39  137 46 48  137 52 26  136 54 16  138 45  0

Uncertainty in time = +/- 35 secs

Prediction of 2010 Nov 19.0

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