Graze logo


ASTROMETRIC UPDATE:
OCCULTATION BY (1362) GRIQUA - 2006 Dec 25

[Detailed Finder Charts]


Updated:   2006 DEC 19, 07:53 UT

Event Rank : 40

(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.

Griqua Update Map


On 2006 Dec 25 UT, the 30 km diameter asteroid (1362) Griqua will occult a 10.7 mag star in the constellation Monoceros for observers along a path across SE Australia, from Mallacoota, past Albury and across southern New South Wales to around Andamooka at twighlight.

In the case of an occultation, the combined light of the asteroid and the star will drop by 3.8 mag to 14.5 mag (the magnitude of the asteroid) for at most 2.1 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
    156 13  8   -43  0  0   10 47  6    26    53   -13  156 45 22  155 40 28  158 29  2  153 49 30
    155  6 41   -42  0  0   10 47 16    26    55   -14  155 39 15  154 33 40  157 23 50  152 41 20
    153 56 40   -41  0  0   10 47 27    26    56   -14  154 29 40  153 23 11  156 15 28  151 29  3
    152 42 45   -40  0  0   10 47 37    25    58   -14  153 16 18  152  8 42  155  3 42  150 12 17
    151 24 35   -39  0  0   10 47 48    25    59   -14  151 58 50  150 49 47  153 48 13  148 50 30

    150  1 40   -38  0  0   10 47 59    25    60   -14  150 36 47  149 25 56  152 28 39  147 23  3
    148 33 23   -37  0  0   10 48 10    24    62   -14  149  9 35  147 56 29  151  4 32  145 49  4
    146 58 56   -36  0  0   10 48 22    24    63   -14  147 36 29  146 20 33  149 35 18  144  7 22
    145 17 14   -35  0  0   10 48 34    23    65   -13  145 56 31  144 37  0  148  0 10  142 16 20
    143 26 50   -34  0  0   10 48 46    22    67   -13  144  8 20  142 44  9  146 18  9  140 13 29

    141 25 35   -33  0  0   10 48 59    21    68   -12  142 10  3  140 39 38  144 27 54  137 55  1

                                                         Latitude   Latitude   Latitude   Latitude
    140  0  0   -32 21 14   10 49  7    20    69   -12  -32  0 31  -32 42 14  -30 54  6  -33 53 48
    139  0  0   -31 55 46   10 49 13    19    70   -11  -31 35 18  -32 16 31  -30 29 36  -33 27 10
    138  0  0   -31 31 41   10 49 19    19    71   -11  -31 11 26  -31 52 12  -30  6 26  -33  2  1
    137  0  0   -31  8 59   10 49 24    18    72   -10  -30 48 57  -31 29 17  -29 44 33  -32 38 20
    136  0  0   -30 47 38   10 49 29    17    72   -10  -30 27 47  -31  7 44  -29 23 58  -32 16  4

    135  0  0   -30 27 37   10 49 34    17    73    -9  -30  7 56  -30 47 33  -29  4 39  -31 55 14
    134  0  0   -30  8 55   10 49 38    16    74    -9  -29 49 24  -30 28 41  -28 46 36  -31 35 46
    133  0  0   -29 51 31   10 49 42    15    74    -8  -29 32  9  -30 11  8  -28 29 47  -31 17 42
    132  0  0   -29 35 26   10 49 47    14    75    -8  -29 16 11  -29 54 54  -28 14 13  -31  0 58
    131  0  0   -29 20 37   10 49 50    14    76    -7  -29  1 29  -29 39 58  -27 59 53  -30 45 36

    130  0  0   -29  7  5   10 49 54    13    76    -7  -28 48  3  -29 26 19  -27 46 47  -30 31 34
    129  0  0   -28 54 48   10 49 58    12    77    -6  -28 35 53  -29 13 58  -27 34 54  -30 18 51
    128  0  0   -28 43 48   10 50  1    11    77    -5  -28 24 57  -29  2 52  -27 24 13  -30  7 27
    127  0  0   -28 34  3   10 50  4    10    78    -5  -28 15 16  -28 53  2  -27 14 45  -29 57 22
    126  0  0   -28 25 33   10 50  7    10    78    -4  -28  6 50  -28 44 29  -27  6 30  -29 48 34

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]