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ASTROMETRIC UPDATE:
OCCULTATION BY (269) JUSTITIA - 2013 JUN 05

[Edwin Goffin's Prediction + Finder Charts]

[Detailed Finder Charts]


Updated:   2013 May 13, 22:45 UT

Event Rank : 55

(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.

Justitia Update Map


On 2013 Jun 05 UT, the 59 km diameter asteroid (269) Justitia will occult a 12.2 mag star in the constellation Virgo for observers along a path across south-western West Australia, running from Shark Bay to Kalgoorlie, across northern Tasmania, passing over Launceston and across Stewart Island off New Zealand's South Island.

In the case of an occultation, the combined light of the asteroid and the star will drop by 1.9 mag to 13.8 mag (the magnitude of the asteroid) for at most 7.1 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 2UCAC 33226762 by 269 Justitia on 2013 Jun  5 
                  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  '  "
                                                         Latitude   Latitude   Latitude   Latitude
    112  0  0   -25 24 18   12 16 21    59   346   -32  -25 44 34  -25  4  6  -26 31 49  -24 17 25
    113  0  0   -25 57 17   12 16 35    59   344   -33  -26 17 33  -25 37  5  -27  4 47  -24 50 25
    114  0  0   -26 30  6   12 16 49    58   342   -34  -26 50 21  -26  9 54  -27 37 34  -25 23 15
    115  0  0   -27  2 44   12 17  2    57   341   -35  -27 22 58  -26 42 32  -28 10  9  -25 55 55
    116  0  0   -27 35  9   12 17 15    56   339   -36  -27 55 22  -27 14 58  -28 42 31  -26 28 23

    117  0  0   -28  7 20   12 17 28    55   338   -37  -28 27 33  -27 47 11  -29 14 39  -27  0 37
    118  0  0   -28 39 17   12 17 41    55   336   -38  -28 59 29  -28 19  9  -29 46 33  -27 32 38
    119  0  0   -29 10 59   12 17 53    54   335   -39  -29 31  9  -28 50 52  -30 18 10  -28  4 24
    120  0  0   -29 42 24   12 18  5    53   334   -40  -30  2 33  -29 22 19  -30 49 31  -28 35 54
    121  0  0   -30 13 33   12 18 18    52   332   -41  -30 33 40  -29 53 29  -31 20 34  -29  7  7

    122  0  0   -30 44 24   12 18 29    51   331   -42  -31  4 29  -30 24 21  -31 51 20  -29 38  3
    123  0  0   -31 14 56   12 18 41    50   330   -43  -31 35  0  -30 54 55  -32 21 46  -30  8 41
    124  0  0   -31 45  8   12 18 52    49   329   -44  -32  5 11  -31 25 10  -32 51 52  -30 39  0
    125  0  0   -32 15  1   12 19  3    48   328   -45  -32 35  1  -31 55  4  -33 21 38  -31  8 59
    126  0  0   -32 44 33   12 19 14    48   327   -46  -33  4 31  -32 24 38  -33 51  3  -31 38 38

    127  0  0   -33 13 44   12 19 25    47   326   -47  -33 33 40  -32 53 51  -34 20  7  -32  7 56
    128  0  0   -33 42 33   12 19 35    46   324   -48  -34  2 26  -33 22 42  -34 48 48  -32 36 52
    129  0  0   -34 10 59   12 19 46    45   323   -48  -34 30 50  -33 51 11  -35 17  6  -33  5 27
    130  0  0   -34 39  3   12 19 56    44   322   -49  -34 58 51  -34 19 17  -35 45  1  -33 33 38
    131  0  0   -35  6 43   12 20  5    43   322   -50  -35 26 29  -34 47  0  -36 12 33  -34  1 27

    132  0  0   -35 33 59   12 20 15    42   321   -51  -35 53 43  -35 14 19  -36 39 41  -34 28 52
    133  0  0   -36  0 52   12 20 24    41   320   -52  -36 20 32  -35 41 14  -37  6 24  -34 55 53
    134  0  0   -36 27 19   12 20 33    40   319   -52  -36 46 57  -36  7 44  -37 32 43  -35 22 30
    135  0  0   -36 53 22   12 20 42    40   318   -53  -37 12 58  -36 33 50  -37 58 36  -35 48 42
    136  0  0   -37 19  0   12 20 50    39   317   -54  -37 38 33  -36 59 31  -38 24  4  -36 14 29

    137  0  0   -37 44 13   12 20 59    38   316   -55  -38  3 42  -37 24 46  -38 49  7  -36 39 51
    138  0  0   -38  9  0   12 21  7    37   315   -55  -38 28 26  -37 49 36  -39 13 44  -37  4 48
    139  0  0   -38 33 21   12 21 15    36   314   -56  -38 52 45  -38 14  1  -39 37 55  -37 29 19
    140  0  0   -38 57 17   12 21 22    35   314   -57  -39 16 37  -38 37 59  -40  1 41  -37 53 25
    141  0  0   -39 20 46   12 21 30    34   313   -57  -39 40  3  -39  1 32  -40 25  0  -38 17  4

    142  0  0   -39 43 49   12 21 37    34   312   -58  -40  3  3  -39 24 38  -40 47 53  -38 40 17
    143  0  0   -40  6 26   12 21 44    33   311   -58  -40 25 37  -39 47 18  -41 10 19  -39  3  5
    144  0  0   -40 28 37   12 21 50    32   310   -59  -40 47 45  -40  9 32  -41 32 20  -39 25 26
    145  0  0   -40 50 22   12 21 57    31   309   -59  -41  9 27  -40 31 20  -41 53 54  -39 47 21
    146  0  0   -41 11 40   12 22  3    30   309   -60  -41 30 42  -40 52 41  -42 15  2  -40  8 49

    147  0  0   -41 32 32   12 22  9    29   308   -60  -41 51 31  -41 13 36  -42 35 43  -40 29 51
    148  0  0   -41 52 58   12 22 15    29   307   -61  -42 11 53  -41 34  5  -42 55 58  -40 50 27
    149  0  0   -42 12 57   12 22 21    28   306   -61  -42 31 49  -41 54  7  -43 15 47  -41 10 37
    150  0  0   -42 32 30   12 22 26    27   305   -62  -42 51 20  -42 13 44  -43 35 10  -41 30 21
    151  0  0   -42 51 37   12 22 32    26   305   -62  -43 10 24  -42 32 54  -43 54  7  -41 49 38

    152  0  0   -43 10 19   12 22 37    25   304   -62  -43 29  2  -42 51 38  -44 12 38  -42  8 29
    153  0  0   -43 28 34   12 22 42    25   303   -63  -43 47 14  -43  9 56  -44 30 43  -42 26 54
    154  0  0   -43 46 23   12 22 47    24   302   -63  -44  5  0  -43 27 49  -44 48 22  -42 44 54
    155  0  0   -44  3 47   12 22 51    23   302   -63  -44 22 21  -43 45 16  -45  5 36  -43  2 27
    156  0  0   -44 20 45   12 22 56    22   301   -64  -44 39 16  -44  2 17  -45 22 24  -43 19 35

    157  0  0   -44 37 18   12 23  0    22   300   -64  -44 55 46  -44 18 52  -45 38 47  -43 36 17
    158  0  0   -44 53 25   12 23  4    21   299   -64  -45 11 50  -44 35  3  -45 54 44  -43 52 34
    159  0  0   -45  9  7   12 23  8    20   299   -64  -45 27 30  -44 50 48  -46 10 17  -44  8 26
    160  0  0   -45 24 25   12 23 11    19   298   -65  -45 42 44  -45  6  8  -46 25 25  -44 23 52
    161  0  0   -45 39 17   12 23 15    18   297   -65  -45 57 34  -45 21  3  -46 40  8  -44 38 54

    162  0  0   -45 53 45   12 23 18    18   296   -65  -46 11 59  -45 35 33  -46 54 26  -44 53 31
    163  0  0   -46  7 48   12 23 21    17   296   -65  -46 25 59  -45 49 39  -47  8 21  -45  7 43
    164  0  0   -46 21 27   12 23 25    16   295   -65  -46 39 35  -46  3 21  -47 21 51  -45 21 30
    165  0  0   -46 34 41   12 23 27    16   294   -65  -46 52 47  -46 16 38  -47 34 57  -45 34 53
    166  0  0   -46 47 32   12 23 30    15   293   -65  -47  5 36  -46 29 31  -47 47 39  -45 47 52

    167  0  0   -46 59 59   12 23 33    14   293   -65  -47 18  0  -46 42  0  -47 59 58  -46  0 27
    168  0  0   -47 12  2   12 23 35    13   292   -65  -47 30  1  -46 54  6  -48 11 53  -46 12 38
    169  0  0   -47 23 42   12 23 38    13   291   -65  -47 41 38  -47  5 48  -48 23 25  -46 24 26
    170  0  0   -47 34 58   12 23 40    12   290   -65  -47 52 53  -47 17  7  -48 34 34  -46 35 50
    171  0  0   -47 45 52   12 23 42    11   289   -65  -48  3 44  -47 28  2  -48 45 20  -46 46 50

    172  0  0   -47 56 22   12 23 44    11   289   -65  -48 14 12  -47 38 35  -48 55 43  -46 57 27
Uncertainty in time = +/- 9 secs

Prediction of 2013 May 14.0


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