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ASTROMETRIC UPDATE:
OCCULTATION BY (12249) 1988SH2 - 2014 Sep 20

[Detailed Finder Charts]


Updated:   2014 JUL 23, 19:00 UT

Event Rank : 11

(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.

1988SH2 Update Map


On 2014 Sep 20 UT, the 10 km diameter asteroid (12249) 1988 SH2 will occult a 6.4 mag star in the constellation Cetus for observers along a very narrow path across Australia, from Gladstone across southern Queensland, northern South Australia and ss Western Australia to Bunbury.

In the case of an occultation, the combined light of the asteroid and the star will drop by 9.8 mag to 16.2 mag (the magnitude of the asteroid) for at most 1.2 seconds.

This update is based on historical astrometry from the MPC files (via AstDys), and the following catalogs for the star position: .

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  '  "
                                                         Latitude   Latitude   Latitude   Latitude
    111  0  0   -33 33  5   13 16 16    36    85   -34  -33 29 50  -33 36 21  -32 48 34  -34 17 36
    112  0  0   -33 28 25   13 16 11    37    85   -35  -33 25  9  -33 31 40  -32 43 51  -34 12 58
    113  0  0   -33 23 15   13 16  6    38    84   -36  -33 20  0  -33 26 31  -32 38 39  -34  7 51

    114  0  0   -33 17 37   13 16  0    39    84   -37  -33 14 21  -33 20 53  -32 32 59  -34  2 16
    115  0  0   -33 11 30   13 15 55    40    83   -37  -33  8 14  -33 14 47  -32 26 49  -33 56 12
    116  0  0   -33  4 55   13 15 49    40    83   -38  -33  1 38  -33  8 11  -32 20 10  -33 49 39
    117  0  0   -32 57 50   13 15 44    41    82   -39  -32 54 33  -33  1  7  -32 13  1  -33 42 38
    118  0  0   -32 50 16   13 15 38    42    82   -40  -32 46 59  -32 53 33  -32  5 24  -33 35  8

    119  0  0   -32 42 13   13 15 32    43    81   -41  -32 38 56  -32 45 31  -31 57 17  -33 27  9
    120  0  0   -32 33 42   13 15 26    44    81   -41  -32 30 24  -32 36 59  -31 48 41  -33 18 41
    121  0  0   -32 24 40   13 15 20    45    80   -42  -32 21 22  -32 27 58  -31 39 36  -33  9 45
    122  0  0   -32 15 10   13 15 14    45    80   -43  -32 11 52  -32 18 28  -31 30  1  -33  0 19
    123  0  0   -32  5 10   13 15  8    46    79   -44  -32  1 51  -32  8 29  -31 19 56  -32 50 24

    124  0  0   -31 54 41   13 15  1    47    79   -44  -31 51 22  -31 58  0  -31  9 22  -32 39 59
    125  0  0   -31 43 42   13 14 55    48    78   -45  -31 40 22  -31 47  1  -30 58 17  -32 29  6
    126  0  0   -31 32 13   13 14 48    49    78   -46  -31 28 53  -31 35 33  -30 46 43  -32 17 43
    127  0  0   -31 20 15   13 14 41    50    77   -47  -31 16 55  -31 23 35  -30 34 39  -32  5 50
    128  0  0   -31  7 47   13 14 35    51    77   -48  -31  4 26  -31 11  7  -30 22  5  -31 53 27

    129  0  0   -30 54 48   13 14 28    51    76   -48  -30 51 27  -30 58  9  -30  9  1  -31 40 35
    130  0  0   -30 41 20   13 14 21    52    76   -49  -30 37 59  -30 44 42  -29 55 27  -31 27 13
    131  0  0   -30 27 22   13 14 13    53    75   -50  -30 24  0  -30 30 44  -29 41 22  -31 13 21
    132  0  0   -30 12 53   13 14  6    54    75   -51  -30  9 30  -30 16 15  -29 26 46  -30 58 59
    133  0  0   -29 57 54   13 13 59    55    74   -51  -29 54 31  -30  1 17  -29 11 41  -30 44  6

    134  0  0   -29 42 24   13 13 51    56    74   -52  -29 39  0  -29 45 47  -28 56  4  -30 28 43
    135  0  0   -29 26 24   13 13 43    57    74   -53  -29 23  0  -29 29 48  -28 39 57  -30 12 50
    136  0  0   -29  9 53   13 13 36    58    73   -54  -29  6 28  -29 13 17  -28 23 19  -29 56 26
    137  0  0   -28 52 51   13 13 28    58    73   -55  -28 49 26  -28 56 16  -28  6  9  -29 39 32
    138  0  0   -28 35 18   13 13 20    59    72   -55  -28 31 53  -28 38 44  -27 48 29  -29 22  7

    139  0  0   -28 17 15   13 13 12    60    72   -56  -28 13 49  -28 20 41  -27 30 18  -29  4 11
    140  0  0   -27 58 40   13 13  3    61    71   -57  -27 55 13  -28  2  7  -27 11 36  -28 45 44
    141  0  0   -27 39 35   13 12 55    62    71   -58  -27 36  7  -27 43  2  -26 52 22  -28 26 46
    142  0  0   -27 19 58   13 12 47    63    71   -58  -27 16 30  -27 23 26  -26 32 37  -28  7 18
    143  0  0   -26 59 50   13 12 38    64    70   -59  -26 56 21  -27  3 18  -26 12 21  -27 47 18

    144  0  0   -26 39 10   13 12 29    65    70   -60  -26 35 41  -26 42 39  -25 51 34  -27 26 47
    145  0  0   -26 18  0   13 12 21    66    70   -61  -26 14 30  -26 21 29  -25 30 15  -27  5 44
    146  0  0   -25 56 18   13 12 12    67    69   -62  -25 52 48  -25 59 48  -25  8 24  -26 44 11
    147  0  0   -25 34  5   13 12  3    68    69   -62  -25 30 34  -25 37 36  -24 46  3  -26 22  6
    148  0  0   -25 11 20   13 11 53    69    69   -63  -25  7 48  -25 14 52  -24 23  9  -25 59 30

    149  0  0   -24 48  4   13 11 44    69    68   -64  -24 44 32  -24 51 36  -23 59 45  -25 36 23
    150  0  0   -24 24 17   13 11 35    70    68   -65  -24 20 44  -24 27 50  -23 35 49  -25 12 45
    151  0  0   -23 59 59   13 11 25    71    68   -65  -23 56 25  -24  3 32  -23 11 22  -24 48 35
    152  0  0   -23 35  9   13 11 16    72    67   -66  -23 31 35  -23 38 43  -22 46 23  -24 23 55
    153  0  0   -23  9 49   13 11  6    73    67   -67  -23  6 14  -23 13 23  -22 20 54  -23 58 43

    154  0  0   -22 43 57   13 10 56    74    67   -67  -22 40 22  -22 47 33  -21 54 53  -23 33  0
    155  0  0   -22 17 35   13 10 46    75    67   -68  -22 13 59  -22 21 11  -21 28 22  -23  6 47
    156  0  0   -21 50 41   13 10 36    76    67   -69  -21 47  5  -21 54 18  -21  1 20  -22 40  2

Uncertainty in time = +/- 18 secs

Prediction of 2014 Jul 23.0

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