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ASTROMETRIC UPDATE:
OCCULTATION BY (743) EUGENISIS - 2009 Nov 01

[Edwin Goffin's Prediction + Finder Charts]

[Detailed Finder Charts]


Updated:   2009 OCT 15, 18:11 UT

Event Rank : 80

(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.

Eugenisis Update Map


On 2009 Nov 01 UT, the 50 km diameter asteroid (743) Eugenisis will occult a 10.8 mag star in the constellation Aries for observers along a path beginning near Sydney with the 1-sigma uncertainty area extending from Forster to Nowra. The path tracks south-west passing near Bathurst, Canberra and Wagga Wagga. Into Victora passing near Deniliquin and Horsham before ending near Mt Gambier in South Australia.

In the case of an occultation, the combined light of the asteroid and the star will drop by 2.8 mag to 13.5 mag (the magnitude of the asteroid) for at most 4.4 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
    130 49 34   -42  0  0   16 45 45    28   338   -28  129 48 26  131 52  7  128 27 23  133 19 44
    132 36 42   -41  0  0   16 45 29    28   336   -29  131 34  2  133 40 59  130 11  8  135 11 15
    134 29 40   -40  0  0   16 45 12    29   334   -29  133 25  4  135 36  6  131 59 51  137  9 44
    136 29 28   -39  0  0   16 44 55    29   332   -29  135 22 26  137 38 37  133 54 19  139 16 31
    138 37 24   -38  0  0   16 44 36    29   329   -29  137 27 18  139 50  3  135 55 32  141 33 31

                                                         Latitude   Latitude   Latitude   Latitude
    139  0  0   -37 49 50   16 44 33    29   329   -29  -37 17 59  -38 22 19  -36 35 37  -39  7 34
    140  0  0   -37 23 29   16 44 24    29   328   -28  -36 51 57  -37 55 38  -36  9 58  -38 40 25
    141  0  0   -36 58  3   16 44 15    29   327   -28  -36 26 48  -37 29 54  -35 45 12  -38 14 13
    142  0  0   -36 33 32   16 44  6    29   326   -28  -36  2 34  -37  5  5  -35 21 18  -37 48 59
    143  0  0   -36  9 55   16 43 58    29   325   -28  -35 39 13  -36 41 11  -34 58 17  -37 24 41

    144  0  0   -35 47 13   16 43 49    29   324   -28  -35 16 45  -36 18 13  -34 36  9  -37  1 20
    145  0  0   -35 25 24   16 43 41    28   323   -27  -34 55 11  -35 56 10  -34 14 53  -36 38 55
    146  0  0   -35  4 30   16 43 32    28   322   -27  -34 34 30  -35 35  2  -33 54 29  -36 17 26
    147  0  0   -34 44 30   16 43 24    28   321   -27  -34 14 42  -35 14 48  -33 34 57  -35 56 54
    148  0  0   -34 25 23   16 43 16    28   320   -26  -33 55 47  -34 55 29  -33 16 17  -35 37 16

    149  0  0   -34  7 10   16 43  8    27   319   -26  -33 37 45  -34 37  4  -32 58 29  -35 18 35
    150  0  0   -33 49 50   16 43  0    27   318   -26  -33 20 36  -34 19 34  -32 41 33  -35  0 48
    151  0  0   -33 33 24   16 42 52    27   317   -25  -33  4 19  -34  2 57  -32 25 30  -34 43 57
    152  0  0   -33 17 51   16 42 44    26   316   -25  -32 48 55  -33 47 15  -32 10 17  -34 28  1
    153  0  0   -33  3 11   16 42 37    26   315   -24  -32 34 24  -33 32 26  -31 55 57  -34 13  0

    154  0  0   -32 49 25   16 42 29    26   314   -24  -32 20 46  -33 18 31  -31 42 28  -33 58 53
    155  0  0   -32 36 31   16 42 22    25   313   -23  -32  7 59  -33  5 30  -31 29 51  -33 45 41
    156  0  0   -32 24 31   16 42 14    25   313   -23  -31 56  6  -32 53 23  -31 18  6  -33 33 24
    157  0  0   -32 13 24   16 42  7    24   312   -22  -31 45  4  -32 42  9  -31  7 13  -33 22  1
    158  0  0   -32  3  9   16 42  0    24   311   -21  -31 34 55  -32 31 49  -30 57 11  -33 11 32

Uncertainty in time = +/- 5 secs

Prediction of 2009 Oct 16.0

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