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ASTROMETRIC UPDATE:
OCCULTATION BY (362) HAVNIA - 2007 NOV 24

[Edwin Goffin's Prediction + Finder Charts]

[Detailed Finder Charts]


Updated:   2007 OCT 25, 13:27 UT

Event Rank : 97

(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.

Havnia Update Map


On 2007 Nov 24 UT, the 90 km diameter asteroid (362) Havnia will occult a 12.0 mag star in the constellation Taurus for observers along a path across Tasmania, south-west Victoria, south-east South Australia and Western Australia, passing near Launceston, Warrnambool, Geelong, Mt Gambier. And in Western Australia, Norseman and Perth.

In the case of an occultation, the combined light of the asteroid and the star will drop by 0.9 mag to 12.2 mag (the magnitude of the asteroid) for at most 8.1 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
    154 54 14   -46  0  0   16 19 33     7   327   -13  156 36 29  153  8 43  ... .. ..  151 46  5
    153 25 15   -45  0  0   16 19 37     8   328   -14  155  8 30  151 38 31  156 24 52  150 14 45
    151 52 46   -44  0  0   16 19 42     9   329   -16  153 37 20  150  4 24  154 54 33  148 39 11
    150 16 21   -43  0  0   16 19 47    11   330   -17  152  2 37  148 25 56  153 20 55  146 58 51
    148 35 29   -42  0  0   16 19 54    12   331   -19  150 23 54  146 42 29  151 43 36  145 13  5

    146 49 34   -41  0  0   16 20  1    14   333   -20  148 40 40  144 53 20  150  2  6  143 21  0
    144 57 49   -40  0  0   16 20 10    15   334   -22  146 52 15  142 57 32  148 15 51  141 21 30
    142 59 14   -39  0  0   16 20 20    17   335   -24  144 57 51  140 53 49  146 24  9  139 13  2
    140 52 29   -38  0  0   16 20 32    18   337   -25  142 56 24  138 40 28  144 26  3  136 53 30

                                                         Latitude   Latitude   Latitude   Latitude
    139  0  0   -37 10 17   16 20 43    20   339   -27  -36 14  2  -38  8 29  -35 32 28  -38 54 10
    138  0  0   -36 45  7   16 20 50    20   339   -28  -35 49 23  -37 42 44  -35  8 11  -38 27 56
    137  0  0   -36 20 53   16 20 56    21   340   -28  -35 25 39  -37 17 57  -34 44 48  -38  2 41
    136  0  0   -35 57 34   16 21  3    22   341   -29  -35  2 48  -36 54  7  -34 22 17  -37 38 25
    135  0  0   -35 35 10   16 21  9    22   342   -30  -34 40 52  -36 31 13  -34  0 39  -37 15  7

    134  0  0   -35 13 41   16 21 16    23   343   -30  -34 19 48  -36  9 17  -33 39 53  -36 52 47
    133  0  0   -34 53  7   16 21 23    24   343   -31  -33 59 38  -35 48 16  -33 20  0  -36 31 24
    132  0  0   -34 33 27   16 21 30    24   344   -32  -33 40 21  -35 28 12  -33  0 59  -36 10 59
    131  0  0   -34 14 42   16 21 38    25   345   -32  -33 21 57  -35  9  2  -32 42 50  -35 51 31
    130  0  0   -33 56 50   16 21 45    25   346   -33  -33  4 26  -34 50 49  -32 25 33  -35 32 59

    129  0  0   -33 39 52   16 21 52    26   347   -33  -32 47 46  -34 33 30  -32  9  7  -35 15 23
    128  0  0   -33 23 48   16 22  0    26   348   -34  -32 32  0  -34 17  6  -31 53 33  -34 58 43
    127  0  0   -33  8 36   16 22  8    26   349   -34  -32 17  5  -34  1 36  -31 38 50  -34 42 58
    126  0  0   -32 54 18   16 22 15    27   350   -35  -32  3  2  -33 47  1  -31 24 59  -34 28  9
    125  0  0   -32 40 52   16 22 23    27   350   -35  -31 49 51  -33 33 20  -31 11 58  -34 14 14

    124  0  0   -32 28 19   16 22 31    27   351   -36  -31 37 31  -33 20 32  -30 59 48  -34  1 15
    123  0  0   -32 16 39   16 22 39    28   352   -36  -31 26  3  -33  8 38  -30 48 28  -33 49 10
    122  0  0   -32  5 50   16 22 47    28   353   -36  -31 15 27  -32 57 37  -30 38  0  -33 37 59
    121  0  0   -31 55 54   16 22 55    28   354   -37  -31  5 41  -32 47 30  -30 28 21  -33 27 42
    120  0  0   -31 46 50   16 23  4    29   355   -37  -30 56 46  -32 38 15  -30 19 33  -33 18 19

    119  0  0   -31 38 38   16 23 12    29   356   -37  -30 48 42  -32 29 54  -30 11 36  -33  9 50
    118  0  0   -31 31 17   16 23 20    29   357   -38  -30 41 30  -32 22 25  -30  4 28  -33  2 15
    117  0  0   -31 24 49   16 23 28    29   358   -38  -30 35  7  -32 15 49  -29 58 11  -32 55 33
    116  0  0   -31 19 11   16 23 37    29   359   -38  -30 29 36  -32 10  6  -29 52 43  -32 49 45
    115  0  0   -31 14 26   16 23 45    29   360   -38  -30 24 55  -32  5 15  -29 48  6  -32 44 50

    114  0  0   -31 10 32   16 23 53    29     1   -38  -30 21  5  -32  1 17  -29 44 18  -32 40 48
    113  0  0   -31  7 29   16 24  2    29     2   -38  -30 18  5  -31 58 11  -29 41 21  -32 37 39
    112  0  0   -31  5 17   16 24 10    29     3   -38  -30 15 56  -31 55 57  -29 39 13  -32 35 23
    111  0  0   -31  3 57   16 24 18    29     4   -39  -30 14 37  -31 54 35  -29 37 55  -32 34  1
    110  0  0   -31  3 28   16 24 27    29     5   -39  -30 14  8  -31 54  6  -29 37 27  -32 33 31

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