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ASTROMETRIC UPDATE:
OCCULTATION BY (693) ZERBINETTA - 2014 Aug 15

[Edwin Goffin's Prediction + Finder Charts]

[Detailed Finder Charts]


Updated:   2014 JUL 08, 18:38 UT

Event Rank : 58

(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.

Zerbinetta Update Map


On 2014 Aug 15 UT, the 80 km diameter asteroid (693) Zerbinetta will occult a 11.7 mag star in the constellation Scorpius for observers along a path passing near Invercargill in New Zealand.

In the case of an occultation, the combined light of the asteroid and the star will drop by 2.7 mag to 14.3 mag (the magnitude of the asteroid) for at most 10.6 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 :
                   Centre              Star  Star   Sun     Path Limit1           Path Limit2           Error Limit1          Error Limit2
  E. Longitude    Latitude      U.T.    Alt   Az    Alt                                                                                       
      o  '  "     o  '  "    h  m  s     o     o     o    o  '  "    o  '  "    o  '  "    o  '  "    o  '  "    o  '  "    o  '  "    o  '  "
                                                         Longitude  Latitude   Longitude  Latitude   Longitude  Latitude   Longitude  Latitude
    178 31 53   -58 24 29   11 30 49    53   275   -45  177 45 55  -58 33  0  179 17 45  -58 15 42  176  7 12  -58 50 22 -179  4 28  -57 56  1
    177 13 24   -57 15 56   11 31  8    54   275   -46  176 28 44  -57 24  2  177 57 59  -57  7 35  174 52 54  -57 40 31  179 33  7  -56 48 52
    176  1 42   -56  6 50   11 31 26    55   274   -47  175 18 17  -56 14 33  176 45  3  -55 58 52  173 45 11  -56 30 14  178 17 39  -55 41  1
    174 56  4   -54 57 16   11 31 44    55   274   -48  174 13 50  -55  4 38  175 38 16  -54 49 40  172 43 19  -55 19 37  177  8 27  -54 32 35
    173 55 54   -53 47 18   11 32  2    56   273   -49  173 14 46  -53 54 21  174 37  0  -53 40  1  171 46 43  -54  8 42  176  4 52  -53 23 39

    173  0 38   -52 36 59   11 32 21    56   272   -50  172 20 34  -52 43 46  173 40 42  -52 30  0  170 54 48  -52 57 32  175  6 23  -52 14 16
    172  9 49   -51 26 22   11 32 39    57   270   -50  171 30 44  -51 32 54  172 48 53  -51 19 38  170  7  9  -51 46  8  174 12 31  -51  4 29
    171 23  0   -50 15 28   11 32 57    57   269   -51  170 44 52  -50 21 46  172  1  9  -50  8 58  169 23 19  -50 34 32  173 22 50  -49 54 21
    170 39 51   -49  4 19   11 33 15    58   268   -52  170  2 36  -49 10 24  171 17  8  -48 58  2  168 42 58  -49 22 45  172 36 58  -48 43 52
    170  0  2   -47 52 55   11 33 33    58   266   -53  169 23 37  -47 58 49  170 36 29  -47 46 49  168  5 47  -48 10 47  171 54 35  -47 33  5

    169 23 17   -46 41 16   11 33 52    58   265   -54  168 47 39  -46 47  0  169 58 57  -46 35 20  167 31 30  -46 58 38  171 15 24  -46 21 59
    168 49 19   -45 29 23   11 34 10    59   263   -55  168 14 25  -45 34 58  169 24 15  -45 23 36  166 59 53  -45 46 17  170 39 10  -45 10 36
    168 17 57   -44 17 15   11 34 28    59   261   -56  167 43 45  -44 22 42  168 52 12  -44 11 37  166 30 42  -44 33 45  170  5 38  -43 58 55
    167 48 58   -43  4 52   11 34 46    59   260   -56  167 15 25  -43 10 12  168 22 34  -42 59 21  166  3 47  -43 21  0  169 34 38  -42 46 55
    167 22 12   -41 52 13   11 35  5    59   258   -57  166 49 16  -41 57 26  167 55 12  -41 46 48  165 38 58  -42  8  1  169  5 58  -41 34 37

    166 57 31   -40 39 17   11 35 23    59   256   -58  166 25 10  -40 44 25  167 29 56  -40 33 58  165 16  6  -40 54 49  168 39 29  -40 22  0
    166 34 46   -39 26  3   11 35 41    59   254   -59  166  2 57  -39 31  6  167  6 38  -39 20 49  164 55  4  -39 41 20  168 15  3  -39  9  2
    166 13 50   -38 12 29   11 35 59    59   252   -60  165 42 31  -38 17 28  166 45 11  -38  7 20  164 35 45  -38 27 34  167 52 32  -37 55 42
    165 54 36   -36 58 35   11 36 17    58   250   -60  165 23 47  -37  3 30  166 25 30  -36 53 29  164 18  2  -37 13 29  167 31 49  -36 41 59
    165 37  0   -35 44 18   11 36 36    58   248   -61  165  6 38  -35 49 11  166  7 27  -35 39 15  164  1 51  -35 59  3  167 12 49  -35 27 52

Uncertainty in time = +/- 14 secs

Prediction of 2014 Jul  9.0

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