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ASTROMETRIC UPDATE:
OCCULTATION BY (0) 2005 AB - 2005 APR 22

[Detailed Finder Charts]


Updated:   2005 MAR 23, 01:17 UT

Event Rank : 11

(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.

2005 AB Update Map


On 2005 Apr 22 UT, the 10 km diameter asteroid 2005 AB will occult a 11.2 mag star in the constellation Bootes 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 4.8 mag to 16.0 mag (the magnitude of the asteroid) for at most 1.5 seconds.

This update is based on Ondrejov astrometry for the asteroid kindly provided by Jan Manek, 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
    ... .. ..   -47  0  0   .. .. ..    ..    ..    ..  ... .. ..  ... .. ..  ... .. ..  133 50 15
    132 42  1   -46  0  0   13 59 51     1    28   -53  132 33 36  132 50 24  130 45 36  134 31 48
    133 22 49   -45  0  0   13 59 50     2    28   -55  133 14 43  133 30 53  131 31  1  135  8 39
    133 58 56   -44  0  0   13 59 48     3    27   -56  133 51  7  134  6 43  132 11  9  135 41 16
    134 30 48   -43  0  0   13 59 46     4    27   -57  134 23 14  134 38 21  132 46 33  136 10  3

    134 58 50   -42  0  0   13 59 43     5    27   -58  134 51 28  135  6  9  133 17 41  136 35 20
    135 23 20   -41  0  0   13 59 40     6    26   -59  135 16 10  135 30 28  133 44 57  136 57 22
    135 44 35   -40  0  0   13 59 36     7    26   -60  135 37 36  135 51 33  134  8 40  137 16 25
    136  2 50   -39  0  0   13 59 31     8    26   -61  135 56  0  136  9 39  134 29  7  137 32 41
    136 18 17   -38  0  0   13 59 26     9    26   -62  136 11 35  136 24 57  134 46 32  137 46 21

    136 31  6   -37  0  0   13 59 20    10    26   -63  136 24 31  136 37 38  135  1  7  137 57 34
    136 41 26   -36  0  0   13 59 14    11    26   -64  136 34 58  136 47 52  135 13  1  138  6 28
    136 49 25   -35  0  0   13 59  7    12    26   -64  136 43  4  136 55 45  135 22 25  138 13 10
    136 55 10   -34  0  0   13 59  0    13    26   -65  136 48 54  137  1 25  135 29 25  138 17 46
    136 58 47   -33  0  0   13 58 52    14    26   -66  136 52 36  137  4 57  135 34  8  138 20 21

    137  0 20   -32  0  0   13 58 44    15    26   -67  136 54 13  137  6 26  135 36 40  138 21  0
    136 59 54   -31  0  0   13 58 35    16    26   -68  136 53 51  137  5 57  135 37  5  138 19 46
    136 57 33   -30  0  0   13 58 25    17    27   -69  136 51 32  137  3 32  135 35 27  138 16 44
    136 53 18   -29  0  0   13 58 16    18    27   -69  136 47 20  136 59 14  135 31 49  138 11 54
    136 47 13   -28  0  0   13 58  5    18    27   -70  136 41 17  136 53  7  135 26 13  138  5 20

    136 39 18   -27  0  0   13 57 54    19    27   -71  136 33 25  136 45 11  135 18 42  137 57  3
    136 29 36   -26  0  0   13 57 43    20    28   -71  136 23 44  136 35 28  135  9 17  137 47  4
    136 18  7   -25  0  0   13 57 31    21    28   -72  136 12 15  136 23 57  134 57 58  137 35 23
    136  4 50   -24  0  0   13 57 19    21    28   -72  135 58 59  136 10 41  134 44 46  137 22  1
    135 49 46   -23  0  0   13 57  6    22    29   -73  135 43 55  135 55 36  134 29 39  137  6 57

    135 32 53   -22  0  0   13 56 52    23    29   -73  135 27  1  135 38 44  134 12 36  136 50 10
    135 14 10   -21  0  0   13 56 38    24    30   -73  135  8 17  135 20  2  133 53 36  136 31 40
    134 53 34   -20  0  0   13 56 24    24    30   -73  134 47 39  134 59 27  133 32 36  136 11 23
    134 31  2   -19  0  0   13 56  8    25    31   -73  134 25  5  134 36 58  133  9 32  135 49 18
    134  6 32   -18  0  0   13 55 53    26    31   -73  134  0 32  134 12 30  132 44 21  135 25 22

    133 39 58   -17  0  0   13 55 36    26    32   -73  133 33 55  133 46  0  132 16 57  134 59 30
    133 11 15   -16  0  0   13 55 19    27    33   -73  133  5  8  133 17 21  131 47 13  134 31 37
    132 40 16   -15  0  0   13 55  2    27    33   -72  132 34  4  132 46 27  131 15  3  134  1 39
    132  6 55   -14  0  0   13 54 44    28    34   -72  132  0 37  132 13 11  130 40 16  133 29 29
    131 31  0   -13  0  0   13 54 25    28    35   -71  131 24 36  131 37 24  130  2 42  132 54 58

    130 52 23   -12  0  0   13 54  5    29    35   -70  130 45 50  130 58 54  129 22  6  132 17 59
    130 10 48   -11  0  0   13 53 45    29    36   -69  130  4  6  130 17 28  128 38 13  131 38 18
    129 26  0   -10  0  0   13 53 24    29    37   -68  129 19  7  129 32 51  127 50 42  130 55 44
    128 37 39   - 9  0  0   13 53  2    30    38   -67  128 30 33  128 44 43  126 59  8  130 10  0
    127 45 20   - 8  0  0   13 52 39    30    39   -66  127 37 58  127 52 39  126  2 57  129 20 46

    126 48 31   - 7  0  0   13 52 15    30    40   -65  126 40 51  126 56  9  125  1 28  128 27 38
    125 46 33   - 6  0  0   13 51 49    30    41   -64  125 38 30  125 54 32  123 53 43  127 30  6

                                                         Latitude   Latitude   Latitude   Latitude
    124  0  0   - 4 28 31   13 51  8    30    42   -61  - 4 35 31  - 4 21 34  - 6  5 19  - 2 57 28
    123  0  0   - 3 42 48   13 50 46    30    43   -60  - 3 49 34  - 3 36  2  - 5 16 32  - 2 14 18
    122  0  0   - 3  0 49   13 50 24    29    44   -59  - 3  7 25  - 2 54 15  - 4 31 54  - 1 34 35
    121  0  0   - 2 22 21   13 50  4    29    45   -58  - 2 28 47  - 2 15 56  - 3 51  5  - 0 58  6
    120  0  0   - 1 47 10   13 49 44    29    45   -56  - 1 53 27  - 1 40 53  - 3 13 50  - 0 24 41

    119  0  0   - 1 15  3   13 49 25    28    46   -55  - 1 21 13  - 1  8 54  - 2 39 54    0  5 51
    118  0  0   - 0 45 52   13 49  6    28    47   -54  - 0 51 56  - 0 39 50  - 2  9  7    0 33 38
    117  0  0   - 0 19 28   13 48 48    27    47   -53  - 0 25 26  - 0 13 32  - 1 41 18    0 58 47
    116  0  0     0  4 16   13 48 30    27    48   -52  - 0  1 37    0 10  7  - 1 16 18    1 21 25
    115  0  0     0 25 27   13 48 13    26    48   -51    0 19 39    0 31 13  - 0 54  1    1 41 38

    114  0  0     0 44 10   13 47 57    26    49   -49    0 38 26    0 49 52  - 0 34 20    1 59 30
    113  0  0     1  0 30   13 47 41    25    49   -48    0 54 50    1  6  9  - 0 17  9    2 15  5
    112  0  0     1 14 31   13 47 26    24    49   -47    1  8 54    1 20  7  - 0  2 24    2 28 28
    111  0  0     1 26 18   13 47 11    24    50   -46    1 20 43    1 31 51    0 10  0    2 39 40
    110  0  0     1 35 51   13 46 57    23    50   -45    1 30 19    1 41 23    0 20  5    2 48 46

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