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ASTROMETRIC UPDATE:
OCCULTATION BY (1040) KLUMPKEA - 2009 JUL 04

[Edwin Goffin's Prediction + Finder Charts]

[Detailed Finder Charts]


Updated:   2009 JUN 24, 17:16 UT

Event Rank : 21

(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.

Klumpkea Update Map


On 2009 Jul 04 UT, the 35 km diameter asteroid (1040) Klumpkea will occult a 12.0 mag star in the constellation Hydra for observers along a large uncertainty path grazing the east coast of Australia, near Brisbane.

In the case of an occultation, the combined light of the asteroid and the star will drop by 4.4 mag to 16.4 mag (the magnitude of the asteroid) for at most 4.2 seconds. Note the nearly full moon only 25 degrees away.

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
    150 51 38   -18  0  0   11 14  0    67   235   -51  151  2 29  150 40 48  152 11 13  149 32 49
    151  4 34   -19  0  0   11 13 47    67   237   -51  151 15 30  150 53 39  152 24 43  149 45 12
    151 18  3   -20  0  0   11 13 34    68   240   -51  151 29  4  151  7  3  152 38 48  149 58  7
    151 32  8   -21  0  0   11 13 21    68   242   -52  151 43 14  151 21  3  152 53 31  150 11 35
    151 46 49   -22  0  0   11 13  8    68   244   -52  151 58  1  151 35 39  153  8 53  150 25 36

    152  2  8   -23  0  0   11 12 54    69   247   -52  152 13 25  151 50 52  153 24 55  150 40 13
    152 18  5   -24  0  0   11 12 41    69   249   -53  152 29 29  152  6 43  153 41 39  150 55 26
    152 34 43   -25  0  0   11 12 28    69   252   -53  152 46 14  152 23 14  153 59  6  151 11 17
    152 52  3   -26  0  0   11 12 14    69   254   -53  153  3 40  152 40 28  154 17 17  151 27 47
    153 10  7   -27  0  0   11 12  1    69   257   -54  153 21 52  152 58 24  154 36 16  151 44 58

    153 28 56   -28  0  0   11 11 47    69   259   -54  153 40 49  153 17  5  154 56  3  152  2 51
    153 48 33   -29  0  0   11 11 34    69   262   -54  154  0 34  153 36 34  155 16 42  152 21 29
    154  9  0   -30  0  0   11 11 20    69   264   -54  154 21 10  153 56 52  155 38 14  152 40 52
    154 30 19   -31  0  0   11 11  7    69   267   -55  154 42 38  154 18  2  156  0 42  153  1  5
    154 52 33   -32  0  0   11 10 53    68   269   -55  155  5  1  154 40  6  156 24  9  153 22  8

    155 15 44   -33  0  0   11 10 40    68   272   -55  155 28 23  155  3  7  156 48 37  153 44  5
    155 39 56   -34  0  0   11 10 26    68   274   -55  155 52 46  155 27  8  157 14 12  154  6 59
    156  5 13   -35  0  0   11 10 13    67   276   -55  156 18 14  155 52 12  157 40 55  154 30 51
    156 31 37   -36  0  0   11  9 59    67   278   -55  156 44 51  156 18 24  158  8 52  154 55 46
Uncertainty in time = +/- 13 secs

Prediction of 2009 Jun 25.0

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