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ASTROMETRIC UPDATE:
OCCULTATION BY (391) INGEBORG - 2014 JUL 05

[Detailed Finder Charts]


Updated:   2014 Jun 22, 08:26 UT

Event Rank : 30

(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.

Ingeborg Update Map


On 2014 Jul 05 UT, the 18 km diameter asteroid (391) Ingeborg will occult a 12.3 mag star in the constellation Vulpecula for observers along a somewhat uncertain path across eastern Australia, running from Gladstone to Victor Harbour.

In the case of an occultation, the combined light of the asteroid and the star will drop by 1.5 mag to 13.5 mag (the magnitude of the asteroid) for at most 1.9 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 :
 Occultation of 2UCAC 41800580 by 391 Ingeborg on 2014 Jul  5 
                   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
    145  0 27   -31 21 55   12 54 30     9    49   -68  144 38 54  -31 33  7  145 21 12  -31 11 13  142 49 45  -32 30 54  146 45 23  -30 28 29
    148  5 50   -27 56  5   12 54 42    13    48   -72  147 51  5  -28  3  7  148 20 19  -27 49 11  146 42  8  -28 36 32  149 21 53  -27 20 18
    150  5 54   -25 12 47   12 54 55    16    47   -74  149 53 45  -25 18 14  150 17 55  -25  7 26  148 58  0  -25 43 32  151  9 44  -24 44 35
    151 35  2   -22 50 40   12 55  8    19    46   -75  151 24 19  -22 55 13  151 45 40  -22 46 11  150 35 36  -23 16  9  152 31 49  -22 26 53
    152 45 20   -20 41 59   12 55 21    21    46   -76  152 35 34  -20 45 57  152 55  3  -20 38  4  151 51 18  -21  4  5  153 37 26  -20 21  8

    153 42 43   -18 42 50   12 55 34    23    46   -77  153 33 36  -18 46 23  153 51 47  -18 39 20  152 52 28  -19  2 32  154 31 27  -18 24  8
Uncertainty in time = +/- 4 secs

Prediction of 2014 Jun 22.0


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