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ASTROMETRIC UPDATE:
OCCULTATION BY (795) FINI - 2018 APR 19

[Edwin Goffin's Prediction + Finder Charts]

[Detailed Finder Charts]


Updated:   2018 Feb 27, 18:55 UT

Event Rank : 72

(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.

Fini Update Map


On 2018 Apr 19 UT, the 63 km diameter asteroid (795) Fini will occult a 12.0 mag star in the constellation Corona Australis for observers along a path across eastern Queensland and north-eastern New South Wales, passing near Proserpine, Tamworth and Newcastle.

In the case of an occultation, the combined light of the asteroid and the star will drop by 2.71 mag to 14.57 mag (the magnitude of the asteroid) for at most 5.1 seconds.

This update is based on UNSO/Flagstaff astrometry for the asteroid kindly provided by Hugh Harris, astrometry for the asteroid kindly provided by Bill Owen, astrometry for the asteroid kindly provided by the IAU Minor Planet Center.

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 :
 Occultation of TYC 7914-00683-1 by 795 Fini on 2018 Apr 19
                   Centre              Star  Star   Sun     Path Limit1           Path Limit2           Error Limit1          Error Limit2       Alt
  E. Longitude    Latitude      U.T.    Alt   Az    Alt                                                                                          Crn
      o  '  "     o  '  "    h  m  s     o     o     o    o  '  "    o  '  "    o  '  "    o  '  "    o  '  "    o  '  "    o  '  "    o  '  "
                                                         Longitude  Latitude   Longitude  Latitude   Longitude  Latitude   Longitude  Latitude
    147 21 58   -17 37  4   16  4 30    46   136   -62  147 41 55  -17 36 21  147  1 57  -17 37 41  148  7 46  -17 35 16  146 35 46  -17 38 19   0.40
    149 44 46   -25 16 53   16  5 30    53   131   -57  150  5 18  -25 15 27  149 24 10  -25 18 12  150 31 57  -25 13 27  148 57 12  -25 19 47   0.41
    151 45 44   -32 23  8   16  6 30    59   123   -53  152  7 24  -32 21 11  151 23 59  -32 25  0  152 35 31  -32 18 30  150 55 33  -32 27 17   0.41
Uncertainty in time = +/- 3 secs

Prediction of 2018 Feb 27.0


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