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ASTROMETRIC UPDATE:
OCCULTATION BY (754) MALABAR - 2018 Mar 09

[Edwin Goffin's Prediction + Finder Charts]

[Detailed Finder Charts]


Updated:   2018 JAN 17, 17:07 UT

Event Rank : 87

(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.

Malabar Update Map


On 2018 Mar 09 UT, the 88 km diameter asteroid (754) Malabar will occult a 11.5 mag star in the constellation Libra for observers along a fairly narrow path across Western Australia, from Albany a little east of Perth to Port Headland.

In the case of an occultation, the combined light of the asteroid and the star will drop by 2.77 mag to 14.20 mag (the magnitude of the asteroid) for at most 7.6 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.

This work has made use of data from the European Space Agency (ESA) mission Gaia (http://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, http://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement.

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       Alt
  E. Longitude   Latitude      U.T.    Alt    Az   Alt    Limit 1    Limit 2    Limit 3    Limit 4   Crn
      o  '  "     o  '  "    h  m  s     o     o     o    o  '  "    o  '  "    o  '  "    o  '  "
                                                        Longitude  Longitude  Longitude  Longitude
    119 48 37   -13  0  0   18 40 57    72    53   -49  120 13 44  119 23 27  120 36 16  119  0 48  -0.25
    119 44  2   -14  0  0   18 40 47    71    50   -49  120  9 17  119 18 45  120 31 54  118 56  0  -0.25

    119 39  8   -15  0  0   18 40 38    70    49   -48  120  4 30  119 13 42  120 27 14  118 50 50  -0.25
    119 33 52   -16  0  0   18 40 29    69    47   -48  119 59 22  119  8 19  120 22 14  118 45 19  -0.25
    119 28 15   -17  0  0   18 40 20    69    45   -48  119 53 54  119  2 33  120 16 54  118 39 25  -0.25
    119 22 16   -18  0  0   18 40 10    68    44   -47  119 48  5  118 56 25  120 11 13  118 33  8  -0.25
    119 15 55   -19  0  0   18 40  1    67    42   -47  119 41 53  118 49 53  120  5 10  118 26 27  -0.26

    119  9  9   -20  0  0   18 39 52    66    41   -47  119 35 19  118 42 57  119 58 45  118 19 22  -0.26
    119  2  0   -21  0  0   18 39 43    65    40   -46  119 28 21  118 35 36  119 51 57  118 11 50  -0.26
    118 54 25   -22  0  0   18 39 34    64    39   -46  119 20 58  118 27 48  119 44 45  118  3 52  -0.26
    118 46 23   -23  0  0   18 39 25    63    38   -46  119 13  9  118 19 34  119 37  8  117 55 26  -0.26
    118 37 55   -24  0  0   18 39 16    63    37   -45  119  4 54  118 10 52  119 29  5  117 46 31  -0.26

    118 28 57   -25  0  0   18 39  8    62    36   -45  118 56 11  118  1 40  119 20 35  117 37  6  -0.26
    118 19 30   -26  0  0   18 38 59    61    36   -44  118 46 59  117 51 58  119 11 37  117 27 10  -0.26
    118  9 32   -27  0  0   18 38 50    60    35   -44  118 37 17  117 41 43  119  2  9  117 16 41  -0.26
    117 59  2   -28  0  0   18 38 42    59    34   -43  118 27  4  117 30 56  118 52 11  117  5 38  -0.26
    117 47 58   -29  0  0   18 38 33    58    34   -43  118 16 18  117 19 34  118 41 41  116 54  0  -0.26

    117 36 19   -30  0  0   18 38 25    57    33   -42  118  4 58  117  7 36  118 30 37  116 41 44  -0.26
    117 24  2   -31  0  0   18 38 16    56    33   -42  117 53  1  116 54 59  118 18 59  116 28 50  -0.26
    117 11  7   -32  0  0   18 38  8    55    33   -41  117 40 27  116 41 43  118  6 43  116 15 14  -0.26
    116 57 31   -33  0  0   18 38  0    54    32   -41  117 27 13  116 27 44  117 53 49  116  0 55  -0.26
    116 43 12   -34  0  0   18 37 52    53    32   -40  117 13 17  116 13  1  117 40 14  115 45 51  -0.26

    116 28  7   -35  0  0   18 37 44    52    32   -40  116 58 37  115 57 32  117 25 56  115 29 59  -0.26
    116 12 15   -36  0  0   18 37 36    51    31   -39  116 43 11  115 41 13  117 10 53  115 13 16  -0.26
    115 55 32   -37  0  0   18 37 28    50    31   -39  116 26 56  115 24  3  116 55  2  114 55 41  -0.26
    115 37 56   -38  0  0   18 37 20    49    31   -38  116  9 49  115  5 57  116 38 21  114 37  9  -0.26
    115 19 24   -39  0  0   18 37 12    48    31   -38  115 51 47  114 46 54  116 20 46  114 17 37  -0.26

    114 59 51   -40  0  0   18 37  5    47    31   -37  115 32 47  114 26 48  116  2 15  113 57  2  -0.27
    114 39 15   -41  0  0   18 36 57    46    31   -37  115 12 45  114  5 37  115 42 44  113 35 19  -0.27

Uncertainty in time = +/- 3 secs

Prediction of 2018 Jan 17.0


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