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ASTROMETRIC UPDATE:
OCCULTATION BY (926) IMHILDE - 2004 JUL 26

[Prediction using OCCULT Software]

[Detailed Finder Charts]


UPDATE: 2004 JUL 04, 19:32 UT

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 the time for your location)

Imhilde Update Map


On 2004 Jul 26 UT, the 48 km diameter asteroid (926) Imhilde will occult a 11.3 mag star in the constellation Grus for observers along a path across Australia.

In the case of an occultation, the combined light of the asteroid and the star will drop by 3.5 mag to 14.8 mag (the magnitude of the asteroid) for at most 4.2 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
   -180  0  0   - 4  1 14   15 29 20    50   211   -38  - 3 41 48  - 4 20 38  - 2 52 18  - 5  9 48
    179  0  0   - 5  5 36   15 29 31    52   210   -40  - 4 46 17  - 5 24 53  - 3 57  5  - 6 13 45
    178  0  0   - 6  9  7   15 29 42    53   210   -41  - 5 49 55  - 6 28 17  - 5  1  3  - 7 16 50
    177  0  0   - 7 11 45   15 29 53    54   210   -42  - 6 52 41  - 7 30 48  - 6  4  8  - 8 19  2

    176  0  0   - 8 13 29   15 30  4    56   209   -43  - 7 54 32  - 8 32 23  - 7  6 19  - 9 20 19
    175  0  0   - 9 14 15   15 30 15    57   209   -44  - 8 55 27  - 9 33  3  - 8  7 33  -10 20 39
    174  0  0   -10 14  4   15 30 27    58   209   -46  - 9 55 23  -10 32 43  - 9  7 49  -11 20  0
    173  0  0   -11 12 52   15 30 38    60   208   -47  -10 54 20  -11 31 24  -10  7  6  -12 18 21
    172  0  0   -12 10 40   15 30 50    61   208   -48  -11 52 15  -12 29  3  -11  5 22  -13 15 40

    171  0  0   -13  7 25   15 31  1    62   207   -49  -12 49  8  -13 25 41  -12  2 36  -14 11 57
    170  0  0   -14  3  7   15 31 12    63   207   -50  -13 44 58  -14 21 15  -12 58 47  -15  7 11
    169  0  0   -14 57 45   15 31 24    65   206   -51  -14 39 45  -15 15 45  -13 53 53  -16  1 21
    168  0  0   -15 51 19   15 31 35    66   205   -52  -15 33 26  -16  9 11  -14 47 56  -16 54 27
    167  0  0   -16 43 48   15 31 47    67   204   -54  -16 26  3  -17  1 31  -15 40 53  -17 46 27

    166  0  0   -17 35 11   15 31 58    68   204   -55  -17 17 34  -17 52 46  -16 32 45  -18 37 23
    165  0  0   -18 25 29   15 32  9    69   203   -56  -18  8  0  -18 42 56  -17 23 31  -19 27 12
    164  0  0   -19 14 41   15 32 21    70   201   -57  -18 57 20  -19 32  1  -18 13 11  -20 15 57
    163  0  0   -20  2 47   15 32 32    71   200   -58  -19 45 34  -20 19 59  -19  1 45  -21  3 36
    162  0  0   -20 49 48   15 32 43    72   199   -58  -20 32 43  -21  6 53  -19 49 14  -21 50  9

    161  0  0   -21 35 44   15 32 54    73   197   -59  -21 18 47  -21 52 41  -20 35 38  -22 35 38
    160  0  0   -22 20 35   15 33  5    74   195   -60  -22  3 45  -22 37 24  -21 20 55  -23 20  2
    159  0  0   -23  4 21   15 33 16    75   193   -61  -22 47 39  -23 21  3  -22  5  9  -24  3 22
    158  0  0   -23 47  3   15 33 26    76   190   -62  -23 30 28  -24  3 37  -22 48 17  -24 45 38
    157  0  0   -24 28 42   15 33 37    77   188   -63  -24 12 14  -24 45  8  -23 30 22  -25 26 50

    156  0  0   -25  9 17   15 33 48    78   184   -64  -24 52 57  -25 25 36  -24 11 23  -26  7  0
    155  0  0   -25 48 50   15 33 58    78   181   -64  -25 32 37  -26  5  2  -24 51 21  -26 46  8
    154  0  0   -26 27 21   15 34  8    79   177   -65  -26 11 15  -26 43 26  -25 30 17  -27 24 14
    153  0  0   -27  4 51   15 34 19    80   172   -66  -26 48 52  -27 20 49  -26  8 12  -28  1 20
    152  0  0   -27 41 20   15 34 29    80   167   -66  -27 25 28  -27 57 12  -26 45  5  -28 37 25

    151  0  0   -28 16 50   15 34 39    80   162   -67  -28  1  4  -28 32 35  -27 20 59  -29 12 32
    150  0  0   -28 51 21   15 34 49    81   157   -68  -28 35 42  -29  6 59  -27 55 53  -29 46 40
    149  0  0   -29 24 54   15 34 58    81   151   -68  -29  9 21  -29 40 26  -28 29 48  -30 19 50
    148  0  0   -29 57 29   15 35  8    81   145   -69  -29 42  3  -30 12 55  -29  2 46  -30 52  3
    147  0  0   -30 29  8   15 35 18    81   140   -69  -30 13 48  -30 44 28  -29 34 46  -31 23 20

    146  0  0   -30 59 51   15 35 27    80   134   -70  -30 44 37  -31 15  5  -30  5 51  -31 53 42
    145  0  0   -31 29 39   15 35 36    80   129   -70  -31 14 31  -31 44 47  -30 36  0  -32 23 10
    144  0  0   -31 58 34   15 35 45    80   125   -71  -31 43 31  -32 13 36  -31  5 14  -32 51 44
    143  0  0   -32 26 34   15 35 55    79   121   -71  -32 11 37  -32 41 31  -31 33 35  -33 19 25
    142  0  0   -32 53 43   15 36  4    79   117   -71  -32 38 51  -33  8 34  -32  1  3  -33 46 14

    141  0  0   -33 20  0   15 36 12    78   114   -71  -33  5 13  -33 34 45  -32 27 39  -34 12 12
    140  0  0   -33 45 26   15 36 21    78   111   -72  -33 30 44  -34  0  6  -32 53 23  -34 37 20
    139  0  0   -34 10  1   15 36 30    77   108   -72  -33 55 25  -34 24 37  -33 18 16  -35  1 38
    138  0  0   -34 33 48   15 36 38    76   106   -72  -34 19 16  -34 48 18  -33 42 20  -35 25  7
    137  0  0   -34 56 46   15 36 47    76   104   -72  -34 42 19  -35 11 12  -34  5 35  -35 47 49

    136  0  0   -35 18 56   15 36 55    75   103   -72  -35  4 34  -35 33 17  -34 28  1  -36  9 42
    135  0  0   -35 40 19   15 37  3    74   102   -72  -35 26  1  -35 54 36  -34 49 40  -36 30 50
    134  0  0   -36  0 55   15 37 11    74   100   -72  -35 46 42  -36 15  8  -35 10 32  -36 51 11
    133  0  0   -36 20 46   15 37 19    73    99   -72  -36  6 37  -36 34 55  -35 30 37  -37 10 47
    132  0  0   -36 39 52   15 37 27    72    99   -72  -36 25 47  -36 53 56  -35 49 58  -37 29 39

    131  0  0   -36 58 13   15 37 35    72    98   -72  -36 44 12  -37 12 14  -36  8 33  -37 47 47
    130  0  0   -37 15 51   15 37 43    71    97   -72  -37  1 54  -37 29 48  -36 26 24  -38  5 11
    129  0  0   -37 32 45   15 37 50    70    97   -72  -37 18 52  -37 46 39  -36 43 31  -38 21 53
    128  0  0   -37 48 57   15 37 58    69    96   -71  -37 35  7  -38  2 47  -36 59 55  -38 37 52
    127  0  0   -38  4 27   15 38  5    69    96   -71  -37 50 40  -38 18 14  -37 15 37  -38 53 11

    126  0  0   -38 19 16   15 38 13    68    96   -71  -38  5 32  -38 32 59  -37 30 37  -39  7 48
    125  0  0   -38 33 24   15 38 20    67    96   -71  -38 19 43  -38 47  4  -37 44 56  -39 21 45
    124  0  0   -38 46 51   15 38 27    66    96   -70  -38 33 13  -39  0 28  -37 58 33  -39 35  2
    123  0  0   -38 59 38   15 38 34    66    96   -70  -38 46  3  -39 13 13  -38 11 30  -39 47 39
    122  0  0   -39 11 46   15 38 41    65    96   -70  -38 58 14  -39 25 18  -38 23 48  -39 59 38

    121  0  0   -39 23 15   15 38 48    64    96   -69  -39  9 45  -39 36 44  -38 35 25  -40 10 58
    120  0  0   -39 34  5   15 38 55    64    96   -69  -39 20 38  -39 47 32  -38 46 24  -40 21 40
    119  0  0   -39 44 17   15 39  1    63    96   -68  -39 30 52  -39 57 42  -38 56 44  -40 31 44
    118  0  0   -39 53 51   15 39  8    62    96   -68  -39 40 28  -40  7 14  -39  6 25  -40 41 10
    117  0  0   -40  2 48   15 39 15    61    96   -68  -39 49 26  -40 16  8  -39 15 29  -40 50  0

    116  0  0   -40 11  7   15 39 21    61    96   -67  -39 57 48  -40 24 26  -39 23 55  -40 58 13
    115  0  0   -40 18 50   15 39 28    60    97   -67  -40  5 32  -40 32  7  -39 31 43  -41  5 49
    114  0  0   -40 25 55   15 39 34    59    97   -66  -40 12 39  -40 39 11  -39 38 55  -41 12 50
    113  0  0   -40 32 25   15 39 40    58    97   -66  -40 19 10  -40 45 39  -39 45 29  -41 19 14
    112  0  0   -40 38 18   15 39 47    58    98   -65  -40 25  5  -40 51 31  -39 51 27  -41 25  3

    111  0  0   -40 43 35   15 39 53    57    98   -65  -40 30 23  -40 56 47  -39 56 49  -41 30 16
    110  0  0   -40 48 17   15 39 59    56    98   -64  -40 35  6  -41  1 28  -40  1 34  -41 34 54

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