Graze logo


ASTROMETRIC UPDATE:
OCCULTATION BY (1281) JEANNE - 2015 Sep 07

[Detailed Finder Charts]


Updated:   2015 AUG 20, 06:11 UT

Event Rank : 42

(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.

Jeanne Update Map


On 2015 Sep 07 UT, the 23 km diameter asteroid (1281) Jeanne will occult a 11.1 mag star in the constellation Pisces for observers along a very narrow path across Australia from Ayr across northern Queensland (in morning twilight ), across southern Northern Territory and southern Western Australia to slightly north of Albany.

In the case of an occultation, the combined light of the asteroid and the star will drop by 3.8 mag to 14.9 mag (the magnitude of the asteroid) for at most 3.1 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: .

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
    112 59 18   -38  0  0   19 53 44    35   329   -33  112 40 19  113 18 23  111 40 53  114 19 17
    114 16 38   -37  0  0   19 53 23    36   327   -33  113 57 32  114 35 51  112 57 45  115 37 11
    115 36 10   -36  0  0   19 53  3    36   325   -32  115 16 55  115 55 32  114 16 41  116 57 25
    116 58  6   -35  0  0   19 52 41    36   323   -31  116 38 38  117 17 40  115 37 50  118 20 14
    118 22 38   -34  0  0   19 52 19    36   322   -31  118  2 56  118 42 27  117  1 25  119 45 51

    119 50  3   -33  0  0   19 51 57    36   320   -30  119 30  3  120 10  9  118 27 41  121 14 34
    121 20 38   -32  0  0   19 51 34    36   318   -29  121  0 17  121 41  6  119 56 53  122 46 44
    122 54 45   -31  0  0   19 51 10    36   316   -28  122 34  0  123 15 39  121 29 21  124 22 45
    124 32 50   -30  0  0   19 50 45    36   314   -27  124 11 35  124 54 15  123  5 27  126  3  6
    126 15 25   -29  0  0   19 50 20    35   312   -25  125 53 33  126 37 27  124 45 39  127 48 24

    128  3  8   -28  0  0   19 49 54    35   310   -24  127 40 33  128 25 56  126 30 32  129 39 25
    129 56 50   -27  0  0   19 49 27    34   308   -22  129 33 22  130 20 32  128 20 46  131 37  9
    131 57 33   -26  0  0   19 48 59    34   306   -21  131 33  1  132 22 23  130 17 15  133 42 55
                                                         Latitude   Latitude   Latitude   Latitude
    132  0  0   -25 58 50   19 48 59    34   306   -21  -25 46 59  -26 10 44  -25  9 58  -26 48 47
    133  0  0   -25 30 28   19 48 45    33   305   -20  -25 18 43  -25 42 16  -24 42  0  -26 20  0

    134  0  0   -25  3  2   19 48 32    33   304   -19  -24 51 23  -25 14 45  -24 14 57  -25 52 10
    135  0  0   -24 36 33   19 48 19    32   303   -18  -24 24 59  -24 48 10  -23 48 49  -25 25 18
    136  0  0   -24 10 59   19 48  6    32   302   -17  -23 59 30  -24 22 31  -23 23 36  -24 59 23
    137  0  0   -23 46 21   19 47 53    31   301   -17  -23 34 57  -23 57 49  -22 59 17  -24 34 24
    138  0  0   -23 22 39   19 47 41    31   300   -16  -23 11 20  -23 34  2  -22 35 53  -24 10 22

    139  0  0   -22 59 53   19 47 28    30   300   -15  -22 48 37  -23 11 11  -22 13 24  -23 47 17
    140  0  0   -22 38  1   19 47 17    30   299   -14  -22 26 50  -22 49 16  -21 51 49  -23 25  8
    141  0  0   -22 17  5   19 47  5    29   298   -13  -22  5 58  -22 28 16  -21 31  9  -23  3 56
    142  0  0   -21 57  4   19 46 53    28   297   -12  -21 46  1  -22  8 11  -21 11 23  -22 43 39
    143  0  0   -21 37 59   19 46 42    28   296   -11  -21 26 58  -21 49  2  -20 52 31  -22 24 19

    144  0  0   -21 19 48   19 46 31    27   296   -10  -21  8 51  -21 30 48  -20 34 33  -22  5 54
    145  0  0   -21  2 32   19 46 21    26   295   -10  -20 51 38  -21 13 29  -20 17 30  -21 48 26
    146  0  0   -20 46 11   19 46 10    26   295    -9  -20 35 20  -20 57  5  -20  1 20  -21 31 53
    147  0  0   -20 30 45   19 46  0    25   294    -8  -20 19 56  -20 41 37  -19 46  4  -21 16 15
    148  0  0   -20 16 14   19 45 51    24   293    -7  -20  5 27  -20 27  3  -19 31 43  -21  1 34

    149  0  0   -20  2 37   19 45 41    23   293    -6  -19 51 53  -20 13 24  -19 18 15  -20 47 47
    150  0  0   -19 49 55   19 45 32    23   292    -5  -19 39 13  -20  0 40  -19  5 42  -20 34 57
    151  0  0   -19 38  8   19 45 23    22   292    -4  -19 27 28  -19 48 51  -18 54  2  -20 23  2
    152  0  0   -19 27 16   19 45 14    21   291    -3  -19 16 37  -19 37 57  -18 43 16  -20 12  3
    153  0  0   -19 17 18   19 45  6    20   291    -2  -19  6 41  -19 27 58  -18 33 25  -20  1 59

    154  0  0   -19  8 16   19 44 58    20   290    -1  -18 57 40  -19 18 55  -18 24 28  -19 52 51
    155  0  0   -19  0  8   19 44 51    19   290     0  -18 49 34  -19 10 46  -18 16 25  -19 44 39

Uncertainty in time = +/- 8 secs

Prediction of 2015 Aug 20.0

Use these links for further information:
[Planetary Occultations] [Using the Predictions]
[Observing Details] [Timing Details] [Reporting Details] [Report Form]
[Asteroid Occultation Results]


[Site Map] [What's an Occultation?]
[Total Occultations] [Grazing Occultations] [Planetary Occultations] [Jovian Satellite Eclipses]
[Timing Occultations] [Reporting Observations] [Coming Events] [Software]
[About Us] [Publications] [Membership] [Links]

[Top of Page][Return to Home Page]