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ASTROMETRIC UPDATE:
OCCULTATION BY (245) VERA - 2008 OCT 28

[Detailed Finder Charts]


Updated:   2008 OCT 16, 01:36 UT

Event Rank : 43

(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.

Vera Update Map


On 2008 Oct 28 UT, the 80 km diameter asteroid (245) Vera will occult a 13.5 mag star in the constellation Aquarius for observers along a significant uncertainty path running up the western coast of New Zealand, passing near Invercargill and Auckland.

In the case of an occultation, the combined light of the asteroid and the star will drop by only 0.4 mag to 12.5 mag (the magnitude of the asteroid) for at most 10.1 seconds.

This update is based on UNSO/Flagstaff astrometry for the asteroid kindly provided by Alice Monet, 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
    165 43 17   -47 22 24   11  8  5    47   298   -26  165  4 57  -47  8 56  166 22 13  -47 35 45  163 12 53  -46 27 39  168 23 52  -48 15 25
    166 20 35   -46 24 57   11  8 20    47   297   -27  165 42 47  -46 11 43  166 59  0  -46 38  5  163 52  7  -45 31  8  168 58 53  -47 17  3
    166 57 53   -45 27 46   11  8 35    47   295   -28  166 20 33  -45 14 45  167 35 49  -45 40 40  164 31 14  -44 34 50  169 34  5  -46 18 57
    167 35 14   -44 30 47   11  8 50    47   293   -29  166 58 21  -44 17 59  168 12 42  -44 43 28  165 10 15  -43 38 43  170  9 27  -45 21  5
    168 12 40   -43 33 59   11  9  5    47   292   -30  167 36 11  -43 21 24  168 49 42  -43 46 28  165 49 14  -42 42 46  170 45  5  -44 23 26

    168 50 14   -42 37 21   11  9 20    47   290   -31  168 14  8  -42 24 58  169 26 52  -42 49 37  166 28 15  -41 46 58  171 20 58  -43 25 57
    169 27 59   -41 40 51   11  9 35    47   289   -32  168 52 14  -41 28 40  170  4 16  -41 52 55  167  7 19  -40 51 16  171 57 11  -42 28 37
    170  5 58   -40 44 27   11  9 50    46   287   -33  169 30 32  -40 32 28  170 41 55  -40 56 19  167 46 31  -39 55 40  172 33 46  -41 31 24
    170 44 13   -39 48  8   11 10  5    46   285   -35  170  9  5  -39 36 21  171 19 52  -39 59 48  168 25 54  -39  0  8  173 10 45  -40 34 17
    171 22 48   -38 51 52   11 10 21    46   284   -36  170 47 56  -38 40 17  171 58 10  -39  3 20  169  5 30  -38  4 38  173 48 10  -39 37 13

    172  1 45   -37 55 37   11 10 36    46   282   -37  171 27  7  -37 44 14  172 36 53  -38  6 54  169 45 22  -37  9  9  174 26  6  -38 40 12
    172 41  8   -36 59 22   11 10 51    45   281   -38  172  6 43  -36 48 10  173 16  3  -37 10 28  170 25 34  -36 13 39  175  4 34  -37 43 10
    173 21  0   -36  3  6   11 11  6    45   279   -39  172 46 46  -35 52  5  173 55 43  -36 13 59  171  6  8  -35 18  7  175 43 38  -36 46  6
    174  1 24   -35  6 46   11 11 21    44   278   -40  173 27 19  -34 55 56  174 35 58  -35 17 28  171 47  9  -34 22 32  176 23 21  -35 48 59
    174 42 24   -34 10 20   11 11 36    44   277   -41  174  8 27  -33 59 42  175 16 49  -34 20 50  172 28 39  -33 26 51  177  3 48  -34 51 46

Uncertainty in time = +/- 16 secs

[Prediction of 2008 Oct 16.0]

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