Graze logo


ASTROMETRIC UPDATE:
OCCULTATION BY (1613) SMILEY - 2005 DEC 12

[Detailed Finder Charts]


Updated:   2005 NOV 30, 06:12 UT

Event Rank : 27

(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.

Smiley Update Map


On 2005 Dec 12 UT, the 21 km diameter asteroid (1613) Smiley will occult a 9.6 mag star in the constellation Leo for observers along a path across central Western Australia.

In the case of an occultation, the combined light of the asteroid and the star will drop by 5.2 mag to 14.8 mag (the magnitude of the asteroid) for at most 4.8 seconds.

This update is based on UNSO/Flagstaff astrometry for the asteroid kindly provided by Ron Stone, 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
    131 47 44   -37  0  0   18 53 14    33     9   -10  131 36 16  131 59 11  130 39 16  132 55 22
    131  3 25   -36  0  0   18 52 50    34    10   -11  130 52  1  131 14 48  129 55 17  132 10 42
    130 18 30   -35  0  0   18 52 25    35    11   -12  130  7  8  130 29 50  129 10 38  131 25 29
    129 32 56   -34  0  0   18 51 59    36    12   -13  129 21 36  129 44 14  128 25 15  130 39 41
    128 46 39   -33  0  0   18 51 32    36    13   -14  128 35 20  128 57 55  127 39  6  129 53 15

    127 59 36   -32  0  0   18 51  5    37    14   -16  127 48 18  128 10 51  126 52  6  129  6  6
    127 11 43   -31  0  0   18 50 36    38    16   -17  127  0 25  127 22 59  126  4 12  128 18 12
    126 22 56   -30  0  0   18 50  7    39    17   -18  126 11 38  126 34 13  125 15 21  127 29 28
    125 33 11   -29  0  0   18 49 37    39    18   -19  125 21 52  125 44 29  124 25 26  126 39 51
    124 42 23   -28  0  0   18 49  7    40    20   -21  124 31  1  124 53 43  123 34 23  125 49 15

    123 50 27   -27  0  0   18 48 35    41    21   -22  123 39  2  124  1 50  122 42  6  124 57 35
    122 57 17   -26  0  0   18 48  2    41    23   -23  122 45 47  123  8 44  121 48 30  124  4 47
    122  2 46   -25  0  0   18 47 29    42    24   -25  121 51 11  122 14 18  120 53 27  123 10 44
    121  6 47   -24  0  0   18 46 55    42    26   -26  120 55  7  121 18 25  119 56 50  122 15 20
    120  9 13   -23  0  0   18 46 20    43    27   -28  119 57 25  120 20 59  118 58 30  121 18 26

    119  9 55   -22  0  0   18 45 44    43    29   -29  118 57 58  119 21 49  117 58 17  120 19 56
    118  8 42   -21  0  0   18 45  7    44    31   -31  117 56 36  118 20 46  116 56  1  119 19 40
    117  5 24   -20  0  0   18 44 28    44    33   -32  116 53  5  117 17 39  115 51 28  118 17 27
    115 59 46   -19  0  0   18 43 49    44    35   -34  115 47 13  116 12 15  114 44 24  117 13  6
    114 51 34   -18  0  0   18 43  9    44    37   -35  114 38 45  115  4 18  113 34 32  116  6 22

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]