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ASTROMETRIC UPDATE:
OCCULTATION BY (83) BEATRIX - 2016 JAN 08

[Edwin Goffin's Prediction + Finder Charts]

[Detailed Finder Charts]


Updated:   2015 Dec 03, 10:15 UT

Event Rank : 99

(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.

Beatrix Update Map


On 2016 Jan 08 UT, the 87 km diameter asteroid (83) Beatrix will occult a 12.3 mag star in the constellation Gemini for observers along a path across Australia, beginning near Merimbula, then running across southern New South Wales into central South Australia and south-central West Australia.

In the case of an occultation, the combined light of the asteroid and the star will drop by only 0.5 mag to 11.8 mag (the magnitude of the asteroid) for at most 7.9 seconds. This event may prove difficult to observe visually.

This update is based on UNSO/Flagstaff astrometry for the asteroid kindly provided by Alice Monet, TMO astrometry for the asteroid kindly provided by Bill Owen, 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 42741139 by 83 Beatrix on 2016 Jan  8 
                  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
    164 14  3   -47  0  0   15 24  2     4   326   -15  165 39 35  162 46 44  166 13 21  162 11 17
    162 58 51   -46  0  0   15 24  4     6   327   -16  164 24 24  161 31 28  164 58  8  160 55 57
    161 41 38   -45  0  0   15 24  7     7   328   -17  163  7 21  160 13 59  163 41  7  159 38 21
    160 22 12   -44  0  0   15 24 10     8   329   -18  161 48 15  158 54  7  162 22  8  158 18 16
    159  0 21   -43  0  0   15 24 14    10   330   -20  160 26 56  157 31 37  161  1  0  156 55 28

    157 35 52   -42  0  0   15 24 19    11   331   -21  159  3 10  156  6 15  159 37 29  155 29 43
    156  8 27   -41  0  0   15 24 24    12   332   -23  157 36 42  154 37 43  158 11 22  154  0 40
    154 37 48   -40  0  0   15 24 31    14   333   -24  156  7 16  153  5 39  156 42 22  152 27 58
    153  3 32   -39  0  0   15 24 38    15   334   -25  154 34 31  151 29 37  155 10  9  150 51  9
    151 25 12   -38  0  0   15 24 46    17   336   -27  152 58  2  149 49  8  153 34 21  149  9 42

    149 42 15   -37  0  0   15 24 55    18   337   -28  151 17 22  148  3 32  151 54 30  147 22 55
    147 54  1   -36  0  0   15 25  6    19   338   -30  149 31 56  146 12  2  150 10  4  145 29 57
    145 59 38   -35  0  0   15 25 18    21   340   -31  147 40 58  144 13 35  148 20 20  143 29 40
    143 57 59   -34  0  0   15 25 31    22   341   -32  145 43 35  142  6 50  146 24 28  141 20 35
    142  0  0   -33  5 32   15 25 44    24   343   -34  -32 15 32  -33 56 53  -31 55 53  -34 17 51

    141  0  0   -32 39 13   15 25 51    24   344   -34  -31 49 40  -33 30  6  -31 30 11  -33 50 51
    140  0  0   -32 13 51   15 25 59    25   345   -35  -31 24 43  -33  4 16  -31  5 24  -33 24 50
    139  0  0   -31 49 24   15 26  6    26   345   -35  -31  0 40  -32 39 24  -30 41 31  -32 59 46
    138  0  0   -31 25 53   15 26 14    26   346   -36  -30 37 32  -32 15 28  -30 18 31  -32 35 39
    137  0  0   -31  3 17   15 26 21    27   347   -36  -30 15 18  -31 52 28  -29 56 25  -32 12 30

    136  0  0   -30 41 36   15 26 29    27   348   -37  -29 53 58  -31 30 25  -29 35 13  -31 50 18
    135  0  0   -30 20 50   15 26 37    28   349   -37  -29 33 31  -31  9 18  -29 14 53  -31 29  1
    134  0  0   -30  0 58   15 26 45    28   350   -38  -29 13 57  -30 49  6  -28 55 27  -31  8 41
    133  0  0   -29 42  0   15 26 53    29   351   -38  -28 55 17  -30 29 50  -28 36 53  -30 49 17
    132  0  0   -29 23 57   15 27  1    29   352   -38  -28 37 30  -30 11 28  -28 19 13  -30 30 48

    131  0  0   -29  6 47   15 27  9    30   353   -39  -28 20 36  -29 54  2  -28  2 24  -30 13 15
    130  0  0   -28 50 31   15 27 17    30   353   -39  -28  4 34  -29 37 30  -27 46 28  -29 56 36
    129  0  0   -28 35  8   15 27 26    30   354   -39  -27 49 25  -29 21 52  -27 31 24  -29 40 53
    128  0  0   -28 20 38   15 27 34    31   355   -40  -27 35  8  -29  7  9  -27 17 12  -29 26  4
    127  0  0   -28  7  1   15 27 43    31   356   -40  -27 21 43  -28 53 20  -27  3 52  -29 12  9

    126  0  0   -27 54 17   15 27 51    31   357   -40  -27  9 10  -28 40 24  -26 51 23  -28 59  8
    125  0  0   -27 42 26   15 28  0    31   358   -40  -26 57 29  -28 28 22  -26 39 46  -28 47  2
    124  0  0   -27 31 28   15 28  8    32   359   -40  -26 46 40  -28 17 13  -26 29  0  -28 35 49
    123  0  0   -27 21 21   15 28 17    32     0   -40  -26 36 42  -28  6 58  -26 19  6  -28 25 29
    122  0  0   -27 12  7   15 28 25    32     1   -40  -26 27 36  -27 57 35  -26 10  2  -28 16  3

    121  0  0   -27  3 45   15 28 34    32     2   -40  -26 19 21  -27 49  6  -26  1 50  -28  7 31
    120  0  0   -26 56 15   15 28 43    32     3   -40  -26 11 57  -27 41 29  -25 54 29  -27 59 51
    119  0  0   -26 49 37   15 28 51    32     4   -40  -26  5 25  -27 34 45  -25 47 58  -27 53  5
    118  0  0   -26 43 51   15 29  0    32     5   -40  -25 59 43  -27 28 54  -25 42 19  -27 47 12
    117  0  0   -26 38 57   15 29  9    32     6   -40  -25 54 53  -27 23 56  -25 37 30  -27 42 12

    116  0  0   -26 34 54   15 29 17    32     7   -40  -25 50 54  -27 19 50  -25 33 32  -27 38  4
    115  0  0   -26 31 43   15 29 26    32     8   -39  -25 47 45  -27 16 36  -25 30 25  -27 34 50
    114  0  0   -26 29 24   15 29 35    32     9   -39  -25 45 28  -27 14 15  -25 28  8  -27 32 28
    113  0  0   -26 27 57   15 29 43    32    10   -39  -25 44  1  -27 12 47  -25 26 42  -27 30 59
    112  0  0   -26 27 21   15 29 52    32    11   -39  -25 43 26  -27 12 11  -25 26  6  -27 30 23

Uncertainty in time = +/- 2 secs

Prediction of 2015 Dec  3.0


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