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ASTROMETRIC UPDATE:
OCCULTATION BY (212) MEDEA - 2010 Nov 19

[Edwin Goffin's Prediction + Finder Charts]

[Detailed Finder Charts]


Updated:   2010 OCT 04, 16:17 UT

Event Rank : 98

(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.

Medea Update Map


On 2010 Nov 19 UT, the 136 km diameter asteroid (212) Medea will occult a 12.3 mag star in the constellation Auriga for observers along a path beginning near Brisbane and moving south-west. Passing near Broken Hill before ending near Adelaide and Port Lincoln in South Australia.

In the case of an occultation, the combined light of the asteroid and the star will drop by 0.8 mag to 12.5 mag (the magnitude of the asteroid) for at most 15.1 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
    126 36 50   -40  0  0   13 58 21     9    41   -28  124 27 51  128 49 54  123  2 12  130 23  1
    128 18 42   -39  0  0   13 58 15    10    39   -29  126  8 23  130 33 25  124 41 59  132  7 53
    130  3 26   -38  0  0   13 58  9    12    38   -30  127 51 27  132 20 14  126 24  7  133 56 22
    131 51 29   -37  0  0   13 58  1    14    37   -32  129 37 25  134 10 48  128  8 53  135 49  0
    133 43 17   -36  0  0   13 57 52    15    36   -33  131 26 41  136  5 42  129 56 41  137 46 24

    135 39 23   -35  0  0   13 57 42    17    35   -35  133 19 42  138  5 35  131 47 55  139 49 20
    137 40 29   -34  0  0   13 57 30    19    33   -36  135 17  2  140 11 17  133 43  6  141 58 48
                                                         Latitude   Latitude   Latitude   Latitude
    138  0  0   -33 50 35   13 57 28    19    33   -36  -32 40 40  -35  2 44  -31 54 17  -35 53 13
    139  0  0   -33 22  3   13 57 22    20    32   -37  -32 12 39  -34 33 39  -31 26 35  -35 23 44
    140  0  0   -32 54 12   13 57 15    21    32   -37  -31 45 17  -34  5 16  -30 59 32  -34 54 56

    141  0  0   -32 27  1   13 57  8    21    31   -38  -31 18 34  -33 37 33  -30 33  8  -34 26 51
    142  0  0   -32  0 30   13 57  1    22    30   -38  -30 52 32  -33 10 33  -30  7 22  -33 59 27
    143  0  0   -31 34 41   13 56 54    23    29   -39  -30 27  9  -32 44 14  -29 42 17  -33 32 47
    144  0  0   -31  9 32   13 56 47    24    29   -39  -30  2 26  -32 18 37  -29 17 50  -33  6 49
    145  0  0   -30 45  5   13 56 39    25    28   -40  -29 38 24  -31 53 42  -28 54  4  -32 41 34

    146  0  0   -30 21 19   13 56 31    25    27   -40  -29 15  2  -31 29 29  -28 30 57  -32 17  2
    147  0  0   -29 58 14   13 56 23    26    26   -41  -28 52 21  -31  5 59  -28  8 31  -31 53 14
    148  0  0   -29 35 51   13 56 15    27    26   -41  -28 30 20  -30 43 12  -27 46 45  -31 30  8
    149  0  0   -29 14 10   13 56  6    27    25   -41  -28  9  1  -30 21  7  -27 25 40  -31  7 46
    150  0  0   -28 53 11   13 55 58    28    24   -42  -27 48 23  -29 59 45  -27  5 15  -30 46  8

    151  0  0   -28 32 53   13 55 49    29    23   -42  -27 28 25  -29 39  6  -26 45 30  -30 25 13
    152  0  0   -28 13 18   13 55 40    29    22   -42  -27  9  9  -29 19 10  -26 26 26  -30  5  1
    153  0  0   -27 54 24   13 55 31    30    22   -42  -26 50 34  -28 59 56  -26  8  3  -29 45 33
    154  0  0   -27 36 13   13 55 22    30    21   -43  -26 32 40  -28 41 25  -25 50 21  -29 26 48
    155  0  0   -27 18 44   13 55 12    31    20   -43  -26 15 28  -28 23 38  -25 33 19  -29  8 47

    156  0  0   -27  1 56   13 55  3    32    19   -43  -25 58 57  -28  6 33  -25 16 59  -28 51 29
    157  0  0   -26 45 51   13 54 53    32    18   -43  -25 43  7  -27 50 11  -25  1 19  -28 34 55
    158  0  0   -26 30 28   13 54 43    33    17   -43  -25 27 59  -27 34 32  -24 46 20  -28 19  5
    159  0  0   -26 15 47   13 54 34    33    16   -43  -25 13 32  -27 19 36  -24 32  2  -28  3 58
    160  0  0   -26  1 48   13 54 24    34    15   -43  -24 59 46  -27  5 23  -24 18 25  -27 49 34


Uncertainty in time = +/- 6 secs

Prediction of 2010 Oct  4.0

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