Graze logo


ASTROMETRIC UPDATE:
OCCULTATION BY (203) POMPEJA - 2012 APR 22

[Edwin Goffin's Prediction + Finder Charts]

[Detailed Finder Charts]


Updated:   2012 Apr 18, 22:08 UT

Event Rank : 97

(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.

Pompeja Update Map


On 2012 Apr 22 UT, the 108 km diameter asteroid (203) Pompeja will occult a 10.5 mag star in the constellation Gemini for observers along a path across New Zealand, running from Westport to Kaikoura.

In the case of an occultation, the combined light of the asteroid and the star will drop by 3.8 mag to 14.2 mag (the magnitude of the asteroid) for at most 3.8 seconds.

This update is based on UNSO/Flagstaff astrometry for the asteroid kindly provided by Alice Monet, TMO astrometry for the asteroid kindly provided by Bill Owen, 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 1884-01092-1 by 203 Pompeja on 2012 Apr 22 
                  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
    176 38 32   -44  0  0    7 53 54     9   319   -27  174 54 17  178 21  6  173 31 41  179 40  3
    174 51 22   -43  0  0    7 53 52    11   321   -26  173  6 58  176 33 56  171 44  9  177 52 49
    173  2 54   -42  0  0    7 53 50    13   322   -24  171 18  8  174 45 42  169 54 55  176  4 40
    171 12 52   -41  0  0    7 53 47    14   323   -23  169 27 29  172 56  8  168  3 39  174 15 20
    169 20 57   -40  0  0    7 53 45    16   325   -22  167 34 40  171  4 55  166  9 58  172 24 33

    167 26 47   -39  0  0    7 53 42    18   326   -20  165 39 18  169 11 44  164 13 30  170 32  0
    165 29 59   -38  0  0    7 53 38    19   327   -19  163 40 57  167 16 13  162 13 44  168 37 20
    163 30  6   -37  0  0    7 53 34    21   329   -17  161 39  6  165 17 58  160 10  6  166 40 11
    161 26 34   -36  0  0    7 53 30    23   331   -15  159 33  8  163 16 30  158  1 54  164 40  6
    160  0  0   -35 19  7    7 53 26    24   332   -14  -36 12 37  -34 26 46  -36 55 12  -33 46 39

    159  0  0   -34 51 23    7 53 24    25   333   -13  -35 44 35  -33 59 18  -36 26 54  -33 19 24
    158  0  0   -34 24  8    7 53 22    25   333   -12  -35 17  3  -33 32 20  -35 59  8  -32 52 38
    157  0  0   -33 57 24    7 53 19    26   334   -12  -34 50  1  -33  5 52  -35 31 52  -32 26 22
    156  0  0   -33 31 12    7 53 17    27   335   -11  -34 23 32  -32 39 56  -35  5  9  -32  0 37
    155  0  0   -33  5 31    7 53 14    28   336   -10  -33 57 35  -32 14 31  -34 38 58  -31 35 24

    154  0  0   -32 40 23    7 53 11    28   337    -9  -33 32 11  -31 49 38  -34 13 20  -31 10 43
    153  0  0   -32 15 49    7 53  9    29   338    -8  -33  7 20  -31 25 18  -33 48 17  -30 46 34
    152  0  0   -31 51 48    7 53  6    30   339    -7  -32 43  4  -31  1 32  -33 23 48  -30 22 59
    151  0  0   -31 28 22    7 53  3    30   339    -6  -32 19 23  -30 38 20  -32 59 54  -29 59 57
    150  0  0   -31  5 31    7 53  0    31   340    -5  -31 56 17  -30 15 43  -32 36 36  -29 37 30

Uncertainty in time = +/- 2 secs

Prediction of 2012 Apr 19.0


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]