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ASTROMETRIC UPDATE:
OCCULTATION BY (186) CELUTA - 2010 Sep 19

[Detailed Finder Charts]


Updated:   2010 JUL 21, 02:00 UT

Event Rank : 37

(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.

Celuta Update Map


On 2010 Sep 19 UT, the 50 km diameter asteroid (186) Celuta will occult a 13.4 mag star in the constellation Taurus for observers along a narrow path across Australia, from Kangaroo Island across eastern South Australia and western Queensland to Princess Charlotte Bay, and across New Guinea near Lae. Adelaide is within the osl

In the case of an occultation, the combined light of the asteroid and the star will drop by 0.5 mag to 12.8 mag (the magnitude of the asteroid) for at most 5.7 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: 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
    135 55 20   -41  0  0   19  2 33    21     1   -21  136 15 18  135 35 24  137 26 59  134 24 16
    136 10 30   -40  0  0   19  2 38    22     1   -21  136 30 11  135 50 51  137 40 53  134 40 42
    136 25 50   -39  0  0   19  2 43    23     0   -21  136 45 16  136  6 27  137 55  0  134 57 14
    136 41 20   -38  0  0   19  2 49    24     0   -21  137  0 31  136 22 12  138  9 22  135 13 52
    136 57  1   -37  0  0   19  2 55    25   360   -21  137 15 57  136 38  6  138 23 57  135 30 37

    137 12 51   -36  0  0   19  3  1    26   360   -21  137 31 34  136 54 10  138 38 47  135 47 29
    137 28 52   -35  0  0   19  3  7    27   359   -21  137 47 22  137 10 24  138 53 50  136  4 28
    137 45  4   -34  0  0   19  3 14    28   359   -21  138  3 23  137 26 48  139  9  7  136 21 35
    138  1 28   -33  0  0   19  3 21    29   359   -21  138 19 35  137 43 23  139 24 39  136 38 50
    138 18  3   -32  0  0   19  3 28    30   358   -21  138 35 59  138  0  8  139 40 25  136 56 13

    138 34 49   -31  0  0   19  3 35    31   358   -21  138 52 35  138 17  5  139 56 26  137 13 46
    138 51 48   -30  0  0   19  3 43    32   358   -21  139  9 25  138 34 13  140 12 42  137 31 28
    139  9  0   -29  0  0   19  3 50    33   357   -21  139 26 28  138 51 33  140 29 13  137 49 20
    139 26 24   -28  0  0   19  3 58    34   357   -21  139 43 44  139  9  6  140 45 59  138  7 23
    139 44  2   -27  0  0   19  4  7    35   357   -21  140  1 14  139 26 52  141  3  2  138 25 37

    140  1 54   -26  0  0   19  4 15    36   356   -21  140 18 59  139 44 51  141 20 21  138 44  2
    140 20  1   -25  0  0   19  4 24    37   356   -20  140 36 59  140  3  4  141 37 56  139  2 39
    140 38 22   -24  0  0   19  4 33    37   355   -20  140 55 14  140 21 32  141 55 49  139 21 30
    140 56 59   -23  0  0   19  4 42    38   355   -20  141 13 45  140 40 15  142 14  0  139 40 33
    141 15 52   -22  0  0   19  4 51    39   354   -20  141 32 32  140 59 13  142 32 29  139 59 50

    141 35  1   -21  0  0   19  5  1    40   354   -20  141 51 37  141 18 27  142 51 16  140 19 22
    141 54 28   -20  0  0   19  5 10    41   353   -19  142 11  0  141 37 59  143 10 24  140 39 10
    142 14 14   -19  0  0   19  5 20    42   353   -19  142 30 41  141 57 48  143 29 51  140 59 13
    142 34 17   -18  0  0   19  5 30    43   352   -19  142 50 41  142 17 55  143 49 39  141 19 33
    142 54 40   -17  0  0   19  5 41    44   352   -19  143 11  1  142 38 21  144  9 48  141 40 11

    143 15 24   -16  0  0   19  5 51    45   351   -18  143 31 42  142 59  8  144 30 20  142  1  6
    143 36 29   -15  0  0   19  6  2    46   350   -18  143 52 45  143 20 14  144 51 15  142 22 21
    143 57 55   -14  0  0   19  6 13    47   350   -18  144 14 10  143 41 43  145 12 34  142 43 56
    144 19 45   -13  0  0   19  6 24    48   349   -17  144 35 58  144  3 34  145 34 18  143  5 52
    144 41 58   -12  0  0   19  6 36    49   348   -17  144 58 10  144 25 48  145 56 27  143 28 10

    145  4 36   -11  0  0   19  6 47    50   348   -17  145 20 48  144 48 27  146 19  4  143 50 51
    145 27 41   -10  0  0   19  6 59    50   347   -16  145 43 52  145 11 31  146 42  8  144 13 56
    145 51 12   - 9  0  0   19  7 11    51   346   -16  146  7 24  145 35  2  147  5 42  144 37 26
    146 15 11   - 8  0  0   19  7 23    52   345   -15  146 31 25  145 59  1  147 29 46  145  1 22
    146 39 41   - 7  0  0   19  7 35    53   344   -15  146 55 55  146 23 28  147 54 22  145 25 46

    147  4 41   - 6  0  0   19  7 48    54   343   -14  147 20 57  146 48 27  148 19 31  145 50 38
    147 30 13   - 5  0  0   19  8  1    55   342   -14  147 46 32  147 13 57  148 45 14  146 16  1
    147 56 19   - 4  0  0   19  8 13    55   341   -13  148 12 41  147 40  1  149 11 34  146 41 55
    148 23  1   - 3  0  0   19  8 26    56   339   -13  148 39 26  148  6 39  149 38 31  147  8 23
    148 50 20   - 2  0  0   19  8 40    57   338   -12  149  6 48  148 33 54  150  6  8  147 35 25

    149 18 17   - 1  0  0   19  8 53    58   337   -12  149 34 50  149  1 47  150 34 26  148  3  4
    149 46 56     0  0  0   19  9  7    58   335   -11  150  3 33  149 30 21  151  3 28  148 31 21

Uncertainty in time = +/- 12 secs

Prediction of 2010 Jul 21.0

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