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ASTROMETRIC UPDATE:
OCCULTATION BY (697) GALILEA - 2015 OCT 25

[Edwin Goffin's Prediction + Finder Charts]

[Detailed Finder Charts]


Updated:   2015 Sep 18, 22:43 UT

Event Rank : 80

(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.

Galilea Update Map


On 2015 Oct 25 UT, the 89 km diameter asteroid (697) Galilea will occult a 11.0 mag star in the constellation Aquarius for observers along a path across Northern Territory, western Queensland, central and south-eastern New South Wales, passing over Forbes, Canberra and Batemans Bay. The path will then cross New Zealand, passing over Invercargill.

In the case of an occultation, the combined light of the asteroid and the star will drop by 2.8 mag to 13.7 mag (the magnitude of the asteroid) for at most 12.3 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 :
 Occultation of TYC 5819-01046-1 by 697 Galilea on 2015 Oct 25 
                  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
    132 19  5   -10  0  0   13 39 45    63   258   -61  132 48 45  131 49 35  133 28 44  131 10 16
    132 45  1   -11  0  0   13 39 29    63   260   -61  133 14 53  132 15 18  133 55  9  131 35 43
    133 11 45   -12  0  0   13 39 12    62   262   -60  133 41 51  132 41 49  134 22 25  132  1 57
    133 39 21   -13  0  0   13 38 56    62   264   -59  134  9 41  133  9 10  134 50 36  132 28 59
    134  7 50   -14  0  0   13 38 40    62   266   -59  134 38 26  133 37 24  135 19 42  132 56 53

    134 37 14   -15  0  0   13 38 24    62   268   -58  135  8  7  134  6 32  135 49 47  133 25 39
    135  7 37   -16  0  0   13 38  7    61   269   -58  135 38 48  134 36 36  136 20 52  133 55 20
    136  0  0   -17 39  5   13 37 40    60   272   -57  -16 40 21  -18 36 49  -15 19 57  -19 52 44
    137  0  0   -19 26 14   13 37 11    59   275   -55  -18 29 49  -20 21 45  -17 12 45  -21 34 52
    138  0  0   -21  7 10   13 36 44    58   277   -54  -20 12 52  -22  0 42  -18 58 46  -23 11 17

    139  0  0   -22 42 27   13 36 18    57   279   -53  -21 50  2  -23 34 10  -20 38 36  -24 42 27
    140  0  0   -24 12 30   13 35 53    56   281   -52  -23 21 48  -25  2 35  -22 12 47  -26  8 45
    141  0  0   -25 37 44   13 35 30    55   282   -51  -24 48 35  -26 26 17  -23 41 47  -27 30 31
    142  0  0   -26 58 28   13 35  8    54   283   -50  -26 10 46  -27 45 39  -25  5 59  -28 48  5
    143  0  0   -28 15  3   13 34 47    53   284   -49  -27 28 41  -29  0 57  -26 25 45  -30  1 43

    144  0  0   -29 27 45   13 34 27    52   285   -48  -28 42 36  -30 12 27  -27 41 23  -31 11 41
    145  0  0   -30 36 48   13 34  9    51   286   -47  -29 52 48  -31 20 23  -28 53 10  -32 18 11
    146  0  0   -31 42 27   13 33 51    50   286   -46  -30 59 31  -32 25  0  -30  1 21  -33 21 28
    147  0  0   -32 44 54   13 33 34    49   287   -45  -32  2 58  -33 26 29  -31  6 10  -34 21 41
    148  0  0   -33 44 20   13 33 18    48   287   -44  -33  3 20  -34 25  1  -32  7 49  -35 19  2

    149  0  0   -34 40 57   13 33  2    47   287   -43  -34  0 48  -35 20 46  -33  6 30  -36 13 41
    150  0  0   -35 34 52   13 32 48    46   287   -42  -34 55 33  -36 13 54  -34  2 22  -37  5 46
    151  0  0   -36 26 16   13 32 34    45   287   -42  -35 47 42  -37  4 32  -34 55 35  -37 55 25
    152  0  0   -37 15 16   13 32 20    44   287   -41  -36 37 26  -37 52 50  -35 46 18  -38 42 47
    153  0  0   -38  1 59   13 32  8    43   287   -40  -37 24 51  -38 38 53  -36 34 39  -39 27 58

    154  0  0   -38 46 34   13 31 55    42   287   -39  -38 10  4  -39 22 50  -37 20 46  -40 11  4
    155  0  0   -39 29  5   13 31 44    41   287   -39  -38 53 12  -40  4 46  -38  4 44  -40 52 13
    156  0  0   -40  9 40   13 31 33    40   287   -38  -39 34 21  -40 44 46  -38 46 40  -41 31 29
    157  0  0   -40 48 23   13 31 22    39   286   -37  -40 13 37  -41 22 57  -39 26 41  -42  8 58
    158  0  0   -41 25 21   13 31 12    38   286   -36  -40 51  5  -41 59 24  -40  4 52  -42 44 44

    159  0  0   -42  0 36   13 31  2    37   286   -36  -41 26 50  -42 34 11  -40 41 17  -43 18 53
    160  0  0   -42 34 15   13 30 53    37   285   -35  -42  0 57  -43  7 22  -41 16  1  -43 51 29
    161  0  0   -43  6 21   13 30 44    36   285   -34  -42 33 29  -43 39  2  -41 49 10  -44 22 34
    162  0  0   -43 36 58   13 30 35    35   285   -34  -43  4 31  -44  9 15  -42 20 46  -44 52 15
    163  0  0   -44  6 10   13 30 27    34   284   -33  -43 34  7  -44 38  4  -42 50 54  -45 20 32

    164  0  0   -44 34  0   13 30 19    33   284   -33  -44  2 20  -45  5 31  -43 19 37  -45 47 31
    165  0  0   -45  0 32   13 30 11    33   283   -32  -44 29 12  -45 31 42  -43 46 59  -46 13 14
    166  0  0   -45 25 48   13 30  4    32   283   -31  -44 54 48  -45 56 38  -44 13  2  -46 37 43
    167  0  0   -45 49 50   13 29 57    31   282   -31  -45 19 10  -46 20 22  -44 37 50  -47  1  2
    168  0  0   -46 12 43   13 29 50    30   281   -30  -45 42 21  -46 42 56  -45  1 26  -47 23 13

    169  0  0   -46 34 28   13 29 43    30   281   -30  -46  4 23  -47  4 24  -45 23 51  -47 44 19
    170  0  0   -46 55  6   13 29 37    29   280   -29  -46 25 18  -47 24 47  -45 45  8  -48  4 20
    171  0  0   -47 14 42   13 29 31    28   280   -29  -46 45  8  -47 44  7  -46  5 19  -48 23 21
    172  0  0   -47 33 16   13 29 25    28   279   -28  -47  3 57  -48  2 27  -46 24 27  -48 41 21
Uncertainty in time = +/- 8 secs

Prediction of 2015 Sep 19.0


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