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ASTROMETRIC UPDATE:
OCCULTATION BY (777) GUTEMBERGA - 2010 JUL 18

[Edwin Goffin's Prediction + Finder Charts]

[Detailed Finder Charts]


Updated:   2010 MAY 26, 23:33 UT

Event Rank : 34

(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.

Gutemberga Update Map


On 2010 Jul 18 UT, the 66 km diameter asteroid (777) Gutemberga will occult a 11.5 mag star in the constellation Pisces for observers along a significant uncertainty path across southern Queensland, beginning near Rockhampton, western New South Wales and eastern South Australia, passing near Adelaide.

In the case of an occultation, the combined light of the asteroid and the star will drop by 4.7 mag to 16.2 mag (the magnitude of the asteroid) for at most 3.9 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
    134 27 59   -37  0  0   17 25 15    14    46   -56  135  1 18  133 54 31  137  9 42  131 42 17
    135 48 59   -36  0  0   17 25 18    15    45   -56  136 21 29  135 16 20  138 26 54  133  7 29
    137  7 18   -35  0  0   17 25 20    17    44   -55  137 39  3  136 35 24  139 41 43  134 29 39
    138 23  9   -34  0  0   17 25 23    18    44   -54  138 54 14  137 51 57  140 54 21  135 49  2
    139 36 46   -33  0  0   17 25 26    20    43   -53  140  7 13  139  6 12  142  5  0  137  5 54

    140 48 19   -32  0  0   17 25 30    21    42   -52  141 18 11  140 18 20  143 13 48  138 20 26
    141 57 58   -31  0  0   17 25 33    22    42   -51  142 27 19  141 28 33  144 20 55  139 32 52
    143  5 54   -30  0  0   17 25 37    24    41   -50  143 34 44  142 36 59  145 26 29  140 43 21
    144 12 13   -29  0  0   17 25 41    25    40   -49  144 40 36  143 43 46  146 30 37  141 52  3
    145 17  4   -28  0  0   17 25 45    27    40   -48  145 45  1  144 49  3  147 33 27  142 59  6

    146 20 34   -27  0  0   17 25 49    28    39   -48  146 48  7  145 52 57  148 35  3  144  4 37
    147 22 48   -26  0  0   17 25 53    29    39   -47  147 50  0  146 55 34  149 35 33  145  8 45
    148 23 54   -25  0  0   17 25 58    31    38   -46  148 50 45  147 57  0  150 35  1  146 11 36
    149 23 56   -24  0  0   17 26  3    32    38   -44  149 50 28  148 57 21  151 33 33  147 13 16
    150 23  0   -23  0  0   17 26  8    33    37   -43  150 49 14  149 56 43  152 31 13  148 13 50

    151 21 10   -22  0  0   17 26 13    35    37   -42  151 47  8  150 55 10  153 28  5  149 13 24
    152 18 31   -21  0  0   17 26 18    36    36   -41  152 44 14  151 52 46  154 24 15  150 12  2
    153 15  8   -20  0  0   17 26 23    37    36   -40  153 40 37  152 49 37  155 19 46  151  9 50
    154 11  4   -19  0  0   17 26 29    39    35   -39  154 36 20  153 45 46  156 14 42  152  6 52
    155  6 23   -18  0  0   17 26 34    40    35   -38  155 31 28  154 41 17  157  9  5  153  3 12

Uncertainty in time = +/- 9 secs

Prediction of 2010 May 27.0

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