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ASTROMETRIC UPDATE:
OCCULTATION BY (1227) GERANIUM - 2005 SEP 12

[Detailed Finder Charts]


Updated:   2005 SEP 01, 04:49 UT

Event Rank : 28

(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.

Geranium Update Map


On 2005 Sep 12 UT, the 42 km diameter asteroid (1227) Geranium will occult a 11.5 mag star in the constellation Corona Australis for observers along a path crossing central Queensland and South Australia, the asteroid shadow passing near Adelaide.

In the case of an occultation, the combined light of the asteroid and the star will drop by 3.4 mag to 14.8 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 Ron Stone, 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
    151 48 25   -10  0  0   10 44 53    56   204   -44  152  0 49  151 36  0  153  0 49  150 35 56
    151 23 48   -11  0  0   10 44 45    57   204   -43  151 36 15  151 11 21  152 36 28  150 11  3
    150 59  2   -12  0  0   10 44 36    58   204   -43  151 11 32  150 46 32  152 11 59  149 45 59
    150 34  4   -13  0  0   10 44 27    59   204   -42  150 46 37  150 21 31  151 47 20  149 20 41
    150  8 54   -14  0  0   10 44 18    60   205   -42  150 21 31  149 56 17  151 22 31  148 55 10

    149 43 30   -15  0  0   10 44  9    61   205   -41  149 56 11  149 30 49  150 57 30  148 29 22
    149 17 51   -16  0  0   10 44  0    62   205   -41  149 30 36  149  5  6  150 32 15  148  3 18
    148 51 55   -17  0  0   10 43 51    63   205   -40  149  4 44  148 39  5  150  6 45  147 36 54
    148 25 41   -18  0  0   10 43 42    65   205   -39  148 38 35  148 12 46  149 41  0  147 10 11
    147 59  7   -19  0  0   10 43 32    66   205   -39  148 12  7  147 46  7  149 14 56  146 43  5

    147 32 11   -20  0  0   10 43 23    67   205   -38  147 45 17  147 19  5  148 48 34  146 15 36
    147  4 53   -21  0  0   10 43 13    68   206   -38  147 18  4  146 51 41  148 21 50  145 47 41
    146 37  9   -22  0  0   10 43  3    69   206   -37  146 50 27  146 23 51  147 54 44  145 19 19
    146  8 59   -23  0  0   10 42 54    70   206   -36  146 22 24  145 55 33  147 27 14  144 50 27
    145 40 20   -24  0  0   10 42 44    71   206   -36  145 53 52  145 26 47  146 59 17  144 21  4

    145 11 10   -25  0  0   10 42 34    72   207   -35  145 24 50  144 57 29  146 30 52  143 51  8
    144 41 26   -26  0  0   10 42 24    73   207   -34  144 55 15  144 27 37  146  1 56  143 20 35
    144 11  7   -27  0  0   10 42 14    74   207   -33  144 25  4  143 57  9  145 32 28  142 49 23


                                                         Latitude   Latitude   Latitude   Latitude
    143  0  0   -29 15 57   10 41 51    77   208   -32  -29 42 39  -28 49 14  -31 51 48  -26 39 44
    142  0  0   -31  5 24   10 41 32    79   209   -30  -31 31 33  -30 39 14  -33 38  2  -28 32 22

    141  0  0   -32 50  5   10 41 13    81   209   -29  -33 15 41  -32 24 28  -35 19 28  -30 20 16
    140  0  0   -34 30  4   10 40 56    82   210   -28  -34 55  7  -34  5  0  -36 56 13  -32  3 29
    139  0  0   -36  5 28   10 40 38    84   212   -26  -36 29 58  -35 40 57  -38 28 25  -33 42  5
    138  0  0   -37 36 24   10 40 22    85   213   -25  -38  0 22  -37 12 25  -39 56 12  -35 16 10
    137  0  0   -39  3  2   10 40  6    86   217   -24  -39 26 28  -38 39 35  -41 19 45  -36 45 54

    136  0  0   -40 25 32   10 39 51    87   248   -23  -40 48 27  -40  2 36  -42 39 13  -38 11 26
    135  0  0   -41 44  3   10 39 37    87    22   -22  -42  6 28  -41 21 38  -43 54 48  -39 32 54
    134  0  0   -42 58 47   10 39 23    86    28   -21  -43 20 42  -42 36 51  -45  6 41  -40 50 30
    133  0  0   -44  9 54   10 39  9    85    30   -20  -44 31 21  -43 48 26  -46 15  3  -42  4 24
    132  0  0   -45 17 35   10 38 57    84    32   -19  -45 38 34  -44 56 35  -47 20  3  -43 14 46

    131  0  0   -46 21 59   10 38 44    82    33   -18  -46 42 32  -46  1 26  -48 21 53  -44 21 46
    130  0  0   -47 23 18   10 38 33    81    34   -17  -47 43 25  -47  3 10  -49 20 43  -45 25 34
    129  0  0   -48 21 40   10 38 21    80    35   -16  -48 41 23  -48  1 56  -50 16 42  -46 26 20
    128  0  0   -49 17 14   10 38 11    79    36   -15  -49 36 34  -48 57 55  -51  9 59  -47 24 13
    127  0  0   -50 10 11   10 38  0    78    37   -14  -50 29  7  -49 51 14  -52  0 43  -48 19 23

    126  0  0   -51  0 37   10 37 50    77    38   -13  -51 19 12  -50 42  2  -52 49  2  -49 11 57


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