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ASTROMETRIC UPDATE:
OCCULTATION BY (204) KALLISTO - 2005 SEP 19

[Edwin Goffin's Prediction + Finder Charts]

[Detailed Finder Charts]


Updated:   2005 SEP 15, 01:46 UT

Event Rank : 72

(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.

Kallisto Update Map


On 2005 Sep 19 UT, the 48 km diameter asteroid (204) Kallisto will occult a 10.8 mag star in the constellation Aquarius for observers along a path across the northern and eastern parts of the north island of New Zealand, passing near Auckland.

In the case of an occultation, the combined light of the asteroid and the star will drop by 2.1 mag to 12.7 mag (the magnitude of the asteroid) for at most 8.4 seconds.

This update is based on UNSO/Flagstaff astrometry for the asteroid kindly provided by Ron Stone, TMO astrometry for the asteroid kindly provided by Bill Owen, 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 Limit1           Path Limit2           Error Limit1          Error Limit2
  E. Longitude    Latitude      U.T.    Alt    Az   Alt
      o  '  "      o  '  "    h  m  s     o     o     o    o  '  "    o  '  "    o  '  "    o  '  "    o  '  "    o  '  "    o  '  "    o  '  "
                                                         Longitude  Latitude   Longitude  Latitude   Longitude  Latitude   Longitude  Latitude
    173 49 59   -29 43 38   14 36 29    18   274   -47  174 39 17  -29 45 21  173  2 32  -29 41 45  176  2 41  -29 47 38  171 50  2  -29 38 24
    173 55 33   -30 12 41   14 36 38    18   274   -46  174 45 28  -30 14 22  173  7 32  -30 10 50  176 10  0  -30 16 36  171 54 12  -30  7 31
    174  2  8   -30 41 47   14 36 48    18   274   -46  174 52 45  -30 43 26  173 13 30  -30 39 57  176 18 31  -30 45 35  171 59 18  -30 36 40
    174  9 48   -31 10 56   14 36 57    17   274   -45  175  1  9  -31 12 32  173 20 30  -31  9  8  176 28 17  -31 14 37  172  5 19  -31  5 53
    174 18 34   -31 40  8   14 37  6    17   274   -45  175 10 43  -31 41 41  173 28 32  -31 38 22  176 39 21  -31 43 41  172 12 19  -31 35 10

    174 28 31   -32  9 22   14 37 15    17   274   -45  175 21 33  -32 10 53  173 37 41  -32  7 39  176 51 49  -32 12 46  172 20 20  -32  4 30
    174 39 41   -32 38 39   14 37 25    17   274   -44  175 33 41  -32 40  6  173 48  0  -32 36 59  177  5 46  -32 41 53  172 29 26  -32 33 54
    174 52 10   -33  7 59   14 37 34    16   274   -44  175 47 13  -33  9 22  173 59 32  -33  6 22  177 21 16  -33 11  1  172 39 38  -33  3 22
    175  6  1   -33 37 22   14 37 43    16   274   -43  176  2 13  -33 38 41  174 12 21  -33 35 49  177 38 27  -33 40 10  172 51  1  -33 32 53
    175 21 19   -34  6 47   14 37 52    16   274   -43  176 18 47  -34  8  1  174 26 32  -34  5 18  177 57 27  -34  9 19  173  3 38  -34  2 28

    175 38 11   -34 36 14   14 38  2    16   274   -42  176 37  2  -34 37 22  174 42 10  -34 34 50  178 18 25  -34 38 29  173 17 34  -34 32  6
    175 56 43   -35  5 44   14 38 11    15   274   -42  176 57  7  -35  6 45  174 59 21  -35  4 25  178 41 30  -35  7 38  173 32 53  -35  1 48
    176 17  2   -35 35 14   14 38 20    15   274   -41  177 19  9  -35 36  8  175 18 11  -35 34  2  179  6 54  -35 36 46  173 49 41  -35 31 33
    176 39 18   -36  4 46   14 38 29    15   274   -41  177 43 19  -36  5 32  175 38 48  -36  3 41  179 34 54  -36  5 51  174  8  4  -36  1 21
    177  3 40   -36 34 19   14 38 38    14   274   -40  178  9 50  -36 34 54  176  1 20  -36 33 21 -179 54 13  -36 34 53  174 28  8  -36 31 11

    177 30 21   -37  3 51   14 38 48    14   274   -40  178 38 56  -37  4 15  176 25 58  -37  3  3 -179 20  6  -37  3 49  174 50  2  -37  1  4
    177 59 35   -37 33 22   14 38 57    13   273   -39  179 10 55  -37 33 33  176 52 54  -37 32 44 -178 42 16  -37 32 38  175 13 55  -37 30 59
    178 31 38   -38  2 51   14 39  6    13   273   -38  179 46  9  -38  2 46  177 22 20  -38  2 25 -178  0  7  -38  1 16  175 39 57  -38  0 55
    179  6 52   -38 32 16   14 39 15    12   273   -38 -179 34 56  -38 31 53  177 54 33  -38 32  5 -177 12 51  -38 29 39  176  8 20  -38 30 52
    179 45 42   -39  1 35   14 39 25    12   273   -37 -178 51 44  -39  0 50  178 29 54  -39  1 41 -176 19 19  -38 57 41  176 39 19  -39  0 49



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