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ASTROMETRIC UPDATE:
OCCULTATION BY (2618) COONABARABRAN - 2016 JUL 21

[Edwin Goffin's Prediction + Finder Charts]

[Detailed Finder Charts]


Updated:   2016 Jul 10, 15:37 UT

Event Rank : 18

(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.

Coonabarabran Update Map


On 2016 Jul 21 UT, the 12 km diameter asteroid (2618) Coonabarabran will occult a 9.9 mag star in the constellation Aquarius for observers along a large uncertainty path across New Zealand, Victoria, South Australia and south-western West Australia, passing near Gisborne, Eden, Bendigo and Bunbury.

In the case of an occultation, the combined light of the asteroid and the star will drop by 6.35 mag to 16.20 mag (the magnitude of the asteroid) for at most 1.2 seconds.

This update is based on, 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 HIP 104331 by 2618 Coonabarabran on 2016 Jul 21 
                  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  '  "
                                                         Latitude   Latitude   Latitude   Latitude
    112  0  0   -32 34 26   14 13 38    37    76   -56  -32 30 40  -32 38 12  -31 48 27  -33 20 46   0.54
    113  0  0   -32 43 32   14 13 31    37    75   -56  -32 39 47  -32 47 18  -31 57 33  -33 29 52   0.54
    114  0  0   -32 52 34   14 13 25    38    75   -57  -32 48 49  -32 56 20  -32  6 36  -33 38 54   0.54
    115  0  0   -33  1 32   14 13 19    39    74   -58  -32 57 46  -33  5 17  -32 15 33  -33 47 50   0.54
    116  0  0   -33 10 24   14 13 12    40    73   -59  -33  6 38  -33 14 10  -32 24 26  -33 56 42   0.54

    117  0  0   -33 19 12   14 13  5    40    72   -59  -33 15 26  -33 22 57  -32 33 15  -34  5 29   0.54
    118  0  0   -33 27 54   14 12 58    41    71   -60  -33 24  9  -33 31 40  -32 41 58  -34 14 11   0.55
    119  0  0   -33 36 31   14 12 51    42    70   -61  -33 32 46  -33 40 17  -32 50 35  -34 22 48   0.55
    120  0  0   -33 45  4   14 12 45    43    69   -61  -33 41 18  -33 48 49  -32 59  8  -34 31 20   0.55
    121  0  0   -33 53 30   14 12 37    43    68   -62  -33 49 45  -33 57 16  -33  7 35  -34 39 46   0.55

    122  0  0   -34  1 51   14 12 30    44    68   -63  -33 58  6  -34  5 37  -33 15 57  -34 48  6   0.55
    123  0  0   -34 10  7   14 12 23    45    67   -63  -34  6 22  -34 13 52  -33 24 13  -34 56 21   0.55
    124  0  0   -34 18 17   14 12 16    45    66   -64  -34 14 31  -34 22  2  -33 32 24  -35  4 30   0.55
    125  0  0   -34 26 21   14 12  9    46    65   -65  -34 22 35  -34 30  6  -33 40 28  -35 12 34   0.55
    126  0  0   -34 34 19   14 12  1    47    64   -65  -34 30 34  -34 38  4  -33 48 27  -35 20 31   0.55

    127  0  0   -34 42 11   14 11 54    47    62   -66  -34 38 26  -34 45 56  -33 56 19  -35 28 22   0.55
    128  0  0   -34 49 56   14 11 46    48    61   -67  -34 46 11  -34 53 42  -34  4  6  -35 36  7   0.55
    129  0  0   -34 57 36   14 11 39    49    60   -67  -34 53 51  -35  1 21  -34 11 46  -35 43 46   0.55
    130  0  0   -35  5  9   14 11 31    49    59   -68  -35  1 24  -35  8 54  -34 19 20  -35 51 19   0.55
    131  0  0   -35 12 36   14 11 23    50    58   -68  -35  8 51  -35 16 21  -34 26 47  -35 58 45   0.55

    132  0  0   -35 19 56   14 11 15    50    57   -69  -35 16 11  -35 23 41  -34 34  8  -36  6  4   0.55
    133  0  0   -35 27 10   14 11  8    51    56   -69  -35 23 25  -35 30 55  -34 41 23  -36 13 17   0.55
    134  0  0   -35 34 17   14 11  0    52    54   -70  -35 30 32  -35 38  2  -34 48 30  -36 20 24   0.55
    135  0  0   -35 41 17   14 10 52    52    53   -70  -35 37 32  -35 45  2  -34 55 31  -36 27 23   0.55
    136  0  0   -35 48 10   14 10 44    53    52   -71  -35 44 25  -35 51 55  -35  2 25  -36 34 15   0.55

    137  0  0   -35 54 56   14 10 36    53    50   -71  -35 51 12  -35 58 41  -35  9 12  -36 41  1   0.55
    138  0  0   -36  1 36   14 10 28    54    49   -72  -35 57 51  -36  5 20  -35 15 52  -36 47 40   0.55
    139  0  0   -36  8  8   14 10 20    54    48   -72  -36  4 23  -36 11 52  -35 22 25  -36 54 11   0.55
    140  0  0   -36 14 33   14 10 12    55    46   -72  -36 10 48  -36 18 17  -35 28 50  -37  0 35   0.55
    141  0  0   -36 20 50   14 10  4    55    45   -72  -36 17  6  -36 24 35  -35 35  9  -37  6 52   0.55

    142  0  0   -36 27  1   14  9 56    56    43   -73  -36 23 16  -36 30 45  -35 41 20  -37 13  2   0.55
    143  0  0   -36 33  4   14  9 47    56    42   -73  -36 29 19  -36 36 48  -35 47 23  -37 19  4   0.55
    144  0  0   -36 38 59   14  9 39    57    40   -73  -36 35 15  -36 42 43  -35 53 20  -37 24 59   0.55
    145  0  0   -36 44 47   14  9 31    57    39   -73  -36 41  3  -36 48 31  -35 59  8  -37 30 46   0.55
    146  0  0   -36 50 27   14  9 23    57    37   -73  -36 46 43  -36 54 12  -36  4 49  -37 36 26   0.55

    147  0  0   -36 56  0   14  9 14    58    35   -73  -36 52 16  -36 59 44  -36 10 23  -37 41 58   0.55
    148  0  0   -37  1 25   14  9  6    58    34   -73  -36 57 41  -37  5  9  -36 15 49  -37 47 22   0.55
    149  0  0   -37  6 42   14  8 58    58    32   -73  -37  2 59  -37 10 27  -36 21  6  -37 52 39   0.55
    150  0  0   -37 11 52   14  8 49    59    30   -73  -37  8  8  -37 15 36  -36 26 17  -37 57 47   0.55
    151  0  0   -37 16 54   14  8 41    59    28   -73  -37 13 10  -37 20 37  -36 31 19  -38  2 48   0.55

    152  0  0   -37 21 47   14  8 32    59    27   -73  -37 18  3  -37 25 31  -36 36 13  -38  7 41   0.55
    153  0  0   -37 26 33   14  8 24    60    25   -73  -37 22 49  -37 30 17  -36 41  0  -38 12 26   0.55
    154  0  0   -37 31 11   14  8 16    60    23   -72  -37 27 27  -37 34 54  -36 45 38  -38 17  3   0.55
    155  0  0   -37 35 40   14  8  7    60    21   -72  -37 31 57  -37 39 24  -36 50  8  -38 21 32   0.55
    156  0  0   -37 40  2   14  7 59    60    19   -72  -37 36 18  -37 43 45  -36 54 30  -38 25 53   0.55

    157  0  0   -37 44 15   14  7 50    60    17   -71  -37 40 32  -37 47 59  -36 58 44  -38 30  6   0.55
    158  0  0   -37 48 20   14  7 42    61    15   -71  -37 44 37  -37 52  4  -37  2 50  -38 34 11   0.55
    159  0  0   -37 52 17   14  7 34    61    13   -71  -37 48 34  -37 56  1  -37  6 47  -38 38  7   0.55
    160  0  0   -37 56  6   14  7 25    61    11   -70  -37 52 23  -37 59 49  -37 10 37  -38 41 55   0.56
    161  0  0   -37 59 46   14  7 17    61    10   -70  -37 56  3  -38  3 30  -37 14 18  -38 45 35   0.56

    162  0  0   -38  3 18   14  7  8    61     8   -69  -37 59 35  -38  7  2  -37 17 50  -38 49  6   0.56
    163  0  0   -38  6 42   14  7  0    61     6   -69  -38  2 59  -38 10 25  -37 21 14  -38 52 29   0.56
    164  0  0   -38  9 57   14  6 51    61     4   -68  -38  6 14  -38 13 40  -37 24 30  -38 55 44   0.56
    165  0  0   -38 13  4   14  6 43    61     2   -68  -38  9 21  -38 16 47  -37 27 37  -38 58 50   0.56
    166  0  0   -38 16  2   14  6 35    61   360   -67  -38 12 19  -38 19 45  -37 30 36  -39  1 48   0.56

    167  0  0   -38 18 52   14  6 26    61   358   -67  -38 15  9  -38 22 35  -37 33 26  -39  4 38   0.56
    168  0  0   -38 21 33   14  6 18    61   356   -66  -38 17 50  -38 25 17  -37 36  8  -39  7 18   0.56
    169  0  0   -38 24  6   14  6 10    61   354   -66  -38 20 23  -38 27 49  -37 38 41  -39  9 51   0.56
    170  0  0   -38 26 30   14  6  1    60   352   -65  -38 22 47  -38 30 13  -37 41  6  -39 12 14   0.56
    171  0  0   -38 28 46   14  5 53    60   350   -64  -38 25  3  -38 32 29  -37 43 22  -39 14 30   0.56

    172  0  0   -38 30 53   14  5 45    60   348   -64  -38 27 10  -38 34 36  -37 45 29  -39 16 36   0.56
    173  0  0   -38 32 51   14  5 36    60   346   -63  -38 29  8  -38 36 34  -37 47 28  -39 18 34   0.56
    174  0  0   -38 34 41   14  5 28    60   344   -63  -38 30 58  -38 38 24  -37 49 18  -39 20 23   0.56
    175  0  0   -38 36 22   14  5 20    59   342   -62  -38 32 39  -38 40  5  -37 50 59  -39 22  4   0.56
    176  0  0   -38 37 54   14  5 12    59   341   -61  -38 34 11  -38 41 37  -37 52 32  -39 23 36   0.56

    177  0  0   -38 39 17   14  5  3    59   339   -61  -38 35 35  -38 43  0  -37 53 55  -39 24 59   0.56
    178  0  0   -38 40 32   14  4 55    59   337   -60  -38 36 50  -38 44 15  -37 55 10  -39 26 14   0.56
    179  0  0   -38 41 38   14  4 47    58   335   -59  -38 37 56  -38 45 21  -37 56 17  -39 27 20   0.56
Uncertainty in time = +/- 10 secs

Prediction of 2016 Jul 10.0


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