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ASTROMETRIC UPDATE:
OCCULTATION BY (976) BENJAMINA - 2003 JUL 19

[Edwin Goffin's Prediction + Finder Charts]


UPDATE: 2003 JUL 04, 21:21 UT

THE UPDATED PATH

Benjamina Update Map

On 2003 Jul 19 UT, the 80 km diameter asteroid (976) Benjamina will occult a 5.7 mag star in the constellation Sagittarius for observers along a path across Argentina, Chile, New Zealand and SE Australia.

Very detailed maps have been kindly prepared by Steve Preston. These show the nominal path limits and the 1-sigma path limits across the areas covered by this event. Click below to see these additional maps.

  • Victoria/South Australia
  • South Island of New Zealand

    Several finder charts have been prepared by Brian Loader. Click on the links below ...

  • Sky view at 08:00 UT, zenith at top, Circle diameter 10 degrees
  • Binocluar view, zenith at top, 6 degree circle, Stars to magnitude 8
  • Telescope view, south at top, east to right, half degree circle, stars to magnitude 12.5

    If possible, observers should use a shortwave radio or GPS derived time source for their observations (eg play WWVH on a radio recorded on the same tape recorder recording observer comments). If you are unable to do this, record a standard AM radio signal from the list below. A coordinator in each region may be able to record this standard radio signal and correlate it to a time standard. The preferred AM radio stations are:

  • South Australia - 5AA (1395 kHz)
  • Victoria - 3RN (621 kHz)
  • New Zealand - National Radio (Wellington 567 kHz; Christchurch 675 kHz)

    In the case of an occultation, the combined light of the asteroid and the star will drop by 8.3 mag to 14.0 mag (the magnitude of the asteroid) for at most 8.1 seconds.

    This update is based on UNSO/Flagstaff astrometry for the asteroid kindly provided by Ron Stone, TMO astrometry for the asteroid kindly provided by Bill Owen, historical astrometry from AstDys, and the Hipparcos catalog for the star position.

    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  '  "
                                                             Latitude   Latitude   Latitude   Latitude
        106  0  0   -24  2 51    8 47 43     0   109    19  -23 37  2  -24 28 46  -23 37  2  -24 28 46
        107  0  0   -24 21 43    8 47 42     1   108    18  -23 55 53  -24 47 39  -23 55 53  -24 47 39
        108  0  0   -24 40 38    8 47 42     2   108    17  -24 14 47  -25  6 35  -24 14 47  -25  6 35
        109  0  0   -24 59 36    8 47 41     3   107    16  -24 33 44  -25 25 33  -24 33 44  -25 25 33
        110  0  0   -25 18 36    8 47 40     4   107    15  -24 52 44  -25 44 34  -24 52 44  -25 44 34
    
        111  0  0   -25 37 37    8 47 39     5   107    15  -25 11 45  -26  3 36  -25 11 45  -26  3 36
        112  0  0   -25 56 41    8 47 38     6   106    14  -25 30 47  -26 22 40  -25 30 47  -26 22 40
        113  0  0   -26 15 45    8 47 37     7   106    13  -25 49 51  -26 41 45  -25 49 51  -26 41 45
        114  0  0   -26 34 49    8 47 35     8   105    12  -26  8 55  -27  0 50  -26  8 55  -27  0 50
        115  0  0   -26 53 54    8 47 33     9   105    11  -26 27 59  -27 19 55  -26 27 59  -27 19 55
    
        116  0  0   -27 12 59    8 47 31    10   104    10  -26 47  3  -27 39  0  -26 47  3  -27 39  0
        117  0  0   -27 32  2    8 47 29    11   104     9  -27  6  7  -27 58  4  -27  6  7  -27 58  4
        118  0  0   -27 51  5    8 47 27    12   103     8  -27 25  9  -28 17  7  -27 25  9  -28 17  7
        119  0  0   -28 10  5    8 47 24    13   103     7  -27 44  9  -28 36  8  -27 44  9  -28 36  8
        120  0  0   -28 29  4    8 47 22    14   102     6  -28  3  8  -28 55  7  -28  3  8  -28 55  7
    
        121  0  0   -28 48  0    8 47 19    15   102     5  -28 22  4  -29 14  3  -28 22  4  -29 14  3
        122  0  0   -29  6 54    8 47 16    15   101     4  -28 40 57  -29 32 57  -28 40 57  -29 32 57
        123  0  0   -29 25 44    8 47 12    16   101     3  -28 59 47  -29 51 47  -28 59 47  -29 51 47
        124  0  0   -29 44 30    8 47  9    17   100     3  -29 18 34  -30 10 33  -29 18 34  -30 10 33
        125  0  0   -30  3 13    8 47  5    18   100     2  -29 37 16  -30 29 16  -29 37 16  -30 29 16
    
        126  0  0   -30 21 51    8 47  2    19    99     1  -29 55 55  -30 47 54  -29 55 55  -30 47 54
        127  0  0   -30 40 24    8 46 58    20    99     0  -30 14 28  -31  6 27  -30 14 28  -31  6 27
        128  0  0   -30 58 52    8 46 54    21    98    -1  -30 32 57  -31 24 55  -30 32 57  -31 24 55
        129  0  0   -31 17 15    8 46 50    22    97    -2  -30 51 20  -31 43 17  -30 51 20  -31 43 17
        130  0  0   -31 35 32    8 46 45    23    97    -3  -31  9 37  -32  1 34  -31  9 37  -32  1 34
    
        131  0  0   -31 53 43    8 46 41    23    96    -4  -31 27 48  -32 19 44  -31 27 48  -32 19 44
        132  0  0   -32 11 47    8 46 36    24    96    -5  -31 45 52  -32 37 48  -31 45 52  -32 37 48
        133  0  0   -32 29 44    8 46 31    25    95    -5  -32  3 50  -32 55 45  -32  3 50  -32 55 45
        134  0  0   -32 47 35    8 46 26    26    94    -6  -32 21 41  -33 13 35  -32 21 41  -33 13 35
        135  0  0   -33  5 17    8 46 21    27    94    -7  -32 39 24  -33 31 17  -32 39 24  -33 31 17
    
        136  0  0   -33 22 53    8 46 16    28    93    -8  -32 57  0  -33 48 52  -32 57  0  -33 48 52
        137  0  0   -33 40 20    8 46 11    29    92    -9  -33 14 28  -34  6 18  -33 14 28  -34  6 18
        138  0  0   -33 57 38    8 46  6    29    92   -10  -33 31 47  -34 23 36  -33 31 47  -34 23 36
        139  0  0   -34 14 48    8 46  0    30    91   -11  -33 48 58  -34 40 45  -33 48 58  -34 40 45
        140  0  0   -34 31 49    8 45 55    31    90   -12  -34  6  0  -34 57 46  -34  6  0  -34 57 46
    
        141  0  0   -34 48 42    8 45 49    32    90   -12  -34 22 53  -35 14 37  -34 22 53  -35 14 37
        142  0  0   -35  5 24    8 45 43    33    89   -13  -34 39 36  -35 31 19  -34 39 36  -35 31 19
        143  0  0   -35 21 57    8 45 37    33    88   -14  -34 56 10  -35 47 51  -34 56 10  -35 47 51
        144  0  0   -35 38 20    8 45 31    34    87   -15  -35 12 34  -36  4 13  -35 12 34  -36  4 13
        145  0  0   -35 54 34    8 45 25    35    87   -16  -35 28 48  -36 20 25  -35 28 48  -36 20 25
    
        146  0  0   -36 10 36    8 45 19    36    86   -17  -35 44 52  -36 36 27  -35 44 52  -36 36 27
        147  0  0   -36 26 29    8 45 13    36    85   -17  -36  0 45  -36 52 18  -36  0 45  -36 52 18
        148  0  0   -36 42 10    8 45  6    37    84   -18  -36 16 28  -37  7 59  -36 16 28  -37  7 59
        149  0  0   -36 57 41    8 45  0    38    83   -19  -36 32  0  -37 23 28  -36 32  0  -37 23 28
        150  0  0   -37 13  0    8 44 53    39    82   -20  -36 47 20  -37 38 46  -36 47 20  -37 38 46
    
        151  0  0   -37 28  8    8 44 47    39    82   -21  -37  2 30  -37 53 54  -37  2 30  -37 53 54
        152  0  0   -37 43  5    8 44 40    40    81   -21  -37 17 28  -38  8 49  -37 17 28  -38  8 49
        153  0  0   -37 57 50    8 44 33    41    80   -22  -37 32 14  -38 23 33  -37 32 14  -38 23 33
        154  0  0   -38 12 24    8 44 27    42    79   -23  -37 46 49  -38 38  5  -37 46 49  -38 38  5
        155  0  0   -38 26 45    8 44 20    42    78   -24  -38  1 11  -38 52 25  -38  1 11  -38 52 25
    
        156  0  0   -38 40 54    8 44 13    43    77   -25  -38 15 22  -39  6 33  -38 15 22  -39  6 33
        157  0  0   -38 54 52    8 44  6    44    76   -25  -38 29 20  -39 20 29  -38 29 20  -39 20 29
        158  0  0   -39  8 36    8 43 59    44    75   -26  -38 43  6  -39 34 12  -38 43  6  -39 34 12
        159  0  0   -39 22  9    8 43 52    45    74   -27  -38 56 40  -39 47 43  -38 56 40  -39 47 43
        160  0  0   -39 35 28    8 43 45    46    73   -28  -39 10  1  -40  1  2  -39 10  1  -40  1  2
    
        161  0  0   -39 48 35    8 43 37    46    72   -28  -39 23 10  -40 14  7  -39 23 10  -40 14  7
        162  0  0   -40  1 29    8 43 30    47    71   -29  -39 36  5  -40 27  0  -39 36  5  -40 27  0
        163  0  0   -40 14 11    8 43 23    47    70   -30  -39 48 48  -40 39 40  -39 48 48  -40 39 40
        164  0  0   -40 26 39    8 43 16    48    68   -31  -40  1 17  -40 52  7  -40  1 17  -40 52  7
        165  0  0   -40 38 54    8 43  8    49    67   -31  -40 13 34  -41  4 21  -40 13 34  -41  4 21
    
        166  0  0   -40 50 56    8 43  1    49    66   -32  -40 25 37  -41 16 21  -40 25 37  -41 16 21
        167  0  0   -41  2 45    8 42 53    50    65   -33  -40 37 28  -41 28  9  -40 37 28  -41 28  9
        168  0  0   -41 14 20    8 42 46    50    64   -34  -40 49  4  -41 39 43  -40 49  4  -41 39 43
        169  0  0   -41 25 43    8 42 38    51    62   -34  -41  0 28  -41 51  3  -41  0 28  -41 51  3
        170  0  0   -41 36 51    8 42 31    52    61   -35  -41 11 38  -42  2 10  -41 11 38  -42  2 10
    
        171  0  0   -41 47 46    8 42 23    52    60   -36  -41 22 34  -42 13  4  -41 22 34  -42 13  4
        172  0  0   -41 58 28    8 42 16    53    59   -37  -41 33 17  -42 23 44  -41 33 17  -42 23 44
        173  0  0   -42  8 56    8 42  8    53    57   -37  -41 43 47  -42 34 11  -41 43 47  -42 34 11
        174  0  0   -42 19 10    8 42  0    54    56   -38  -41 54  2  -42 44 24  -41 54  2  -42 44 24
        175  0  0   -42 29 10    8 41 53    54    54   -39  -42  4  4  -42 54 23  -42  4  4  -42 54 23
    
        176  0  0   -42 38 57    8 41 45    55    53   -39  -42 13 52  -43  4  8  -42 13 52  -43  4  8
        177  0  0   -42 48 30    8 41 38    55    52   -40  -42 23 26  -43 13 40  -42 23 26  -43 13 40
        178  0  0   -42 57 49    8 41 30    56    50   -41  -42 32 47  -43 22 57  -42 32 47  -43 22 57
        179  0  0   -43  6 54    8 41 22    56    49   -41  -42 41 54  -43 32  1  -42 41 54  -43 32  1
        180  0  0   -43 15 46    8 41 14    56    47   -42  -42 50 46  -43 40 51  -42 50 46  -43 40 51
    
    

    IMPORTANT NOTE!

    Astrometric updates such as these should not be taken as definitive, but rather only as an indication of where the true track may lie relative to the original predicted track. Observers must bear in mind that later astrometry, in which the target star is measured in the same field as the asteroid, may still reveal substantial changes to the predicted track and time of the event. For this reason it is most important that observers far from the predicted track still monitor the event.

    Use these links for further information:
    [Planetary Occultations] [Using the Predictions]
    [Observing Details] [Timing Details] [Reporting Details] [Report Form]
    [Asteroid Occultation Results]


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