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ASTROMETRIC UPDATE:
OCCULTATION BY (2326) TOLOLO - 2016 Feb 09

[Detailed Finder Charts]


Updated:   2016 JAN 06, 16:50 UT

Event Rank : 50

(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.

Tololo Update Map


On 2016 Feb 09 UT, the 44 km diameter asteroid (2326) Tololo will occult a 11.2 mag star in the constellation Virgo for observers along a path beginning near Port Lincoln in SA and moving north passing near Alice Springs and between Wyndam and Darwin.

In the case of an occultation, the combined light of the asteroid and the star will drop by 4.4 mag to 15.6 mag (the magnitude of the asteroid) for at most 4.9 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 :
                   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
    133 44  0   -48  0  0   14 46 24    23    56   -27  134 16 17  133 11 20  135 37 57  131 45 12
    134 13  5   -47  0  0   14 46 32    24    56   -28  134 44 26  133 41 24  136  3 46  132 17 55
    134 38 29   -46  0  0   14 46 41    24    55   -29  135  8 58  134  7 40  136 26 12  132 46 35
    135  0 29   -45  0  0   14 46 51    25    55   -30  135 30 12  134 30 28  136 45 32  133 11 32
    135 19 21   -44  0  0   14 47  0    26    56   -31  135 48 22  134 50  4  137  1 58  133 33  5

    135 35 20   -43  0  0   14 47  9    27    56   -32  136  3 42  135  6 41  137 15 42  133 51 29
    135 48 35   -42  0  0   14 47 19    28    56   -33  136 16 23  135 20 33  137 26 56  134  6 57
    135 59 19   -41  0  0   14 47 29    28    56   -34  136 26 34  135 31 50  137 35 48  134 19 42
    136  7 40   -40  0  0   14 47 39    29    56   -35  136 34 26  135 40 40  137 42 26  134 29 53
    136 13 45   -39  0  0   14 47 50    30    57   -36  136 40  4  135 47 13  137 46 58  134 37 39

    136 17 43   -38  0  0   14 48  0    30    57   -37  136 43 37  135 51 36  137 49 30  134 43  9
    136 19 38   -37  0  0   14 48 11    31    58   -38  136 45 10  135 53 54  137 50  7  134 46 28
    136 19 37   -36  0  0   14 48 21    31    58   -39  136 44 49  135 54 14  137 48 54  134 47 44
    136 17 45   -35  0  0   14 48 32    32    59   -40  136 42 37  135 52 40  137 45 56  134 47  1
    136 14  5   -34  0  0   14 48 44    32    59   -41  136 38 40  135 49 17  137 41 16  134 44 23

    136  8 40   -33  0  0   14 48 55    33    60   -42  136 33  1  135 44  9  137 34 58  134 39 56
    136  1 36   -32  0  0   14 49  6    33    60   -43  136 25 42  135 37 18  137 27  5  134 33 43
    135 52 53   -31  0  0   14 49 18    34    61   -44  136 16 47  135 28 48  137 17 39  134 25 45
    135 42 35   -30  0  0   14 49 30    34    62   -45  136  6 18  135 18 41  137  6 42  134 16  7
    135 30 43   -29  0  0   14 49 42    34    62   -46  135 54 17  135  6 58  136 54 16  134  4 50

    135 17 19   -28  0  0   14 49 54    35    63   -47  135 40 44  134 53 43  136 40 23  133 51 56
    135  2 24   -27  0  0   14 50  6    35    64   -48  135 25 42  134 38 55  136 25  3  133 37 26
    134 45 59   -26  0  0   14 50 18    35    65   -49  135  9 12  134 22 35  136  8 18  133 21 22
    134 28  5   -25  0  0   14 50 31    36    65   -50  134 51 13  134  4 45  135 50  8  133  3 43
    134  8 41   -24  0  0   14 50 43    36    66   -51  134 31 47  133 45 25  135 30 33  132 44 30

    133 47 48   -23  0  0   14 50 56    36    67   -52  134 10 52  133 24 34  135  9 33  132 23 44
    133 25 26   -22  0  0   14 51  9    36    68   -53  133 48 29  133  2 12  134 47  8  132  1 22
    133  1 33   -21  0  0   14 51 21    36    69   -54  133 24 37  132 38 19  134 23 17  131 37 26
    132 36  9   -20  0  0   14 51 35    36    70   -54  132 59 15  132 12 52  133 58  0  131 11 53
    132  9 13   -19  0  0   14 51 48    36    71   -55  132 32 22  131 45 52  133 31 14  130 44 42

    131 40 41   -18  0  0   14 52  1    36    72   -56  132  3 55  131 17 15  133  2 59  130 15 51
    131 10 33   -17  0  0   14 52 14    36    73   -57  131 33 53  130 47  0  132 33 12  129 45 18
    130 38 45   -16  0  0   14 52 28    36    73   -58  131  2 13  130 15  5  132  1 51  129 12 59
    130  5 15   -15  0  0   14 52 41    36    74   -59  130 28 52  129 41 24  131 28 53  128 38 51
    129 29 58   -14  0  0   14 52 55    35    75   -59  129 53 47  129  5 56  130 54 15  128  2 50

    128 52 52   -13  0  0   14 53  9    35    76   -60  129 16 54  128 28 35  130 17 54  127 24 50
    128 13 50   -12  0  0   14 53 23    35    77   -61  128 38  7  127 49 17  129 39 44  126 44 48
    127 32 47   -11  0  0   14 53 37    34    78   -61  127 57 22  127  7 56  128 59 42  126  2 35
    126 49 36   -10  0  0   14 53 51    34    79   -62  127 14 32  126 24 24  128 17 40  125 18  4
    126  4 10   - 9  0  0   14 54  5    33    80   -63  126 29 29  125 38 34  127 33 34  124 31  7


Uncertainty in time = +/- 7 secs

Prediction of 2016 Jan  7.0

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