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ASTROMETRIC UPDATE:
OCCULTATION BY (342) ENDYMION - 2005 APR 18

[Edwin Goffin's Prediction + Finder Charts]


Updated:   2005 MAR 22, 23:34 UT

Event Rank : 84

(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.

Endymion Update Map


On 2005 Apr 18 UT, the 61 km diameter asteroid (342) Endymion will occult a 12.0 mag star in the constellation Sextans for observers along a path across Australia, SE Asia, China, Russia.

In the case of an occultation, the combined light of the asteroid and the star will drop by 2.4 mag to 14.2 mag (the magnitude of the asteroid) for at most 12.8 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
   
    109 58 10   - 7  0  0   15 16 10    67   281   -69  110 17 18  109 39  5  110 40 42  109 15 52
    110 23 49   - 8  0  0   15 15 46    66   283   -70  110 43  2  110  4 39  111  6 32  109 41 19
    110 50  1   - 9  0  0   15 15 22    65   285   -70  111  9 20  110 30 45  111 32 58  110  7 19
    111 16 48   -10  0  0   15 14 59    65   287   -70  111 36 14  110 57 26  111 59 59  110 33 52
    111 44 12   -11  0  0   15 14 35    64   288   -71  112  3 44  111 24 42  112 27 38  111  1  0

    112 12 12   -12  0  0   15 14 11    64   290   -71  112 31 52  111 52 35  112 55 55  111 28 44
    112 40 52   -13  0  0   15 13 48    63   292   -72  113  0 40  112 21  7  113 24 53  111 57  6
    113 10 12   -14  0  0   15 13 24    62   293   -72  113 30  8  112 50 18  113 54 33  112 26  7
    113 40 14   -15  0  0   15 13  1    61   294   -72  114  0 20  113 20 12  114 24 56  112 55 49

                                                         Latitude   Latitude   Latitude   Latitude
    114  0  0   -15 38 42   15 12 46    61   295   -72  -14 59 21  -16 17 45  -14 10 53  -17  4 59
    115  0  0   -17 32 33   15 12  1    59   297   -72  -16 54 24  -18 10 26  -16  7 27  -18 56 17
    116  0  0   -19 21  9   15 11 20    58   299   -72  -18 44  6  -19 57 57  -17 58 33  -20 42 30
    117  0  0   -21  4 47   15 10 40    56   300   -72  -20 28 46  -21 40 34  -19 44 31  -22 23 55
    118  0  0   -22 43 41   15 10  3    55   301   -72  -22  8 39  -23 18 31  -21 25 37  -24  0 45

    119  0  0   -24 18  7   15  9 27    53   302   -72  -23 43 59  -24 52  3  -23  2  5  -25 33 13
    120  0  0   -25 48 17   15  8 54    52   303   -71  -25 15  1  -26 21 23  -24 34 10  -27  1 33
    121  0  0   -27 14 24   15  8 23    50   304   -70  -26 41 56  -27 46 43  -26  2  6  -28 25 55
    122  0  0   -28 36 40   15  7 53    49   304   -70  -28  4 58  -29  8 14  -27 26  4  -29 46 32
    123  0  0   -29 55 16   15  7 25    48   304   -69  -29 24 17  -30 26  7  -28 46 17  -31  3 34

    124  0  0   -31 10 22   15  6 58    46   305   -68  -30 40  4  -31 40 33  -30  2 55  -32 17 11
    125  0  0   -32 22  9   15  6 33    45   305   -67  -31 52 30  -32 51 41  -31 16  9  -33 27 33
    126  0  0   -33 30 46   15  6  9    44   305   -67  -33  1 44  -33 59 41  -32 26  9  -34 34 49
    127  0  0   -34 36 22   15  5 47    42   305   -66  -34  7 55  -35  4 42  -33 33  4  -35 39  8
    128  0  0   -35 39  5   15  5 25    41   304   -65  -35 11 12  -36  6 52  -34 37  2  -36 40 38

    129  0  0   -36 39  4   15  5  5    40   304   -64  -36 11 43  -37  6 19  -35 38 13  -37 39 27
    130  0  0   -37 36 26   15  4 46    39   304   -63  -37  9 35  -38  3 11  -36 36 43  -38 35 42
    131  0  0   -38 31 18   15  4 28    38   304   -62  -38  4 57  -38 57 34  -37 32 41  -39 29 30
    132  0  0   -39 23 48   15  4 11    37   303   -62  -38 57 55  -39 49 37  -38 26 13  -40 20 59
    133  0  0   -40 14  2   15  3 55    36   303   -61  -39 48 35  -40 39 24  -39 17 26  -41 10 15

    134  0  0   -41  2  6   15  3 40    35   303   -60  -40 37  4  -41 27  3  -40  6 27  -41 57 23
    135  0  0   -41 48  5   15  3 25    34   302   -59  -41 23 28  -42 12 38  -40 53 21  -42 42 29
    136  0  0   -42 32  7   15  3 11    33   302   -58  -42  7 53  -42 56 16  -41 38 14  -43 25 39
    137  0  0   -43 14 14   15  2 58    32   301   -58  -42 50 23  -43 38  2  -42 21 11  -44  6 58
    138  0  0   -43 54 34   15  2 46    31   301   -57  -43 31  3  -44 18  0  -43  2 17  -44 46 31

    139  0  0   -44 33  9   15  2 34    30   300   -56  -44  9 59  -44 56 15  -43 41 38  -45 24 22
    140  0  0   -45 10  5   15  2 23    29   300   -56  -44 47 15  -45 32 52  -44 19 18  -46  0 35
    141  0  0   -45 45 26   15  2 12    28   299   -55  -45 22 54  -46  7 54  -44 55 20  -46 35 15
    142  0  0   -46 19 15   15  2  2    27   298   -54  -45 57  1  -46 41 26  -45 29 49  -47  8 25
    143  0  0   -46 51 37   15  1 53    26   298   -53  -46 29 40  -47 13 31  -46  2 49  -47 40 10

    144  0  0   -47 22 35   15  1 44    25   297   -53  -47  0 54  -47 44 13  -46 34 23  -48 10 32
    145  0  0   -47 52 12   15  1 35    25   297   -52  -47 30 47  -48 13 34  -47  4 35  -48 39 35
    146  0  0   -48 20 32   15  1 27    24   296   -51  -47 59 21  -48 41 39  -47 33 27  -49  7 21
    147  0  0   -48 47 36   15  1 19    23   295   -51  -48 26 40  -49  8 29  -48  1  4  -49 33 55
    148  0  0   -49 13 29   15  1 12    22   295   -50  -48 52 46  -49 34  9  -48 27 26  -49 59 17

    149  0  0   -49 38 12   15  1  5    22   294   -50  -49 17 43  -49 58 39  -48 52 39  -50 23 32
    150  0  0   -50  1 49   15  0 58    21   293   -49  -49 41 31  -50 22  3  -49 16 43  -50 46 41
    151  0  0   -50 24 20   15  0 52    20   292   -48  -50  4 15  -50 44 23  -49 39 41  -51  8 47
    152  0  0   -50 45 50   15  0 46    19   292   -48  -50 25 56  -51  5 42  -50  1 35  -51 29 52
    153  0  0   -51  6 19   15  0 40    19   291   -47  -50 46 36  -51 26  0  -50 22 28  -51 49 58

    154  0  0   -51 25 50   15  0 35    18   290   -47  -51  6 17  -51 45 21  -50 42 22  -52  9  6
    155  0  0   -51 44 25   15  0 29    17   290   -46  -51 25  1  -52  3 46  -51  1 18  -52 27 19
    156  0  0   -52  2  4   15  0 24    17   289   -46  -51 42 50  -52 21 16  -51 19 18  -52 44 39
    157  0  0   -52 18 50   15  0 20    16   288   -45  -51 59 45  -52 37 54  -51 36 24  -53  1  6
    158  0  0   -52 34 45   15  0 15    15   287   -44  -52 15 48  -52 53 40  -51 52 37  -53 16 42

    159  0  0   -52 49 49   15  0 11    15   287   -44  -52 31  0  -53  8 37  -52  7 58  -53 31 29
    160  0  0   -53  4  5   15  0  7    14   286   -43  -52 45 23  -53 22 45  -52 22 30  -53 45 28
    161  0  0   -53 17 33   15  0  3    13   285   -43  -52 58 57  -53 36  6  -52 36 14  -53 58 41
    162  0  0   -53 30 14   15  0  0    13   284   -42  -53 11 45  -53 48 40  -52 49  9  -54 11  7
    163  0  0   -53 42  9   14 59 57    12   283   -42  -53 23 47  -54  0 30  -53  1 19  -54 22 50

    164  0  0   -53 53 21   14 59 53    12   283   -41  -53 35  4  -54 11 35  -53 12 43  -54 33 48
    165  0  0   -54  3 48   14 59 50    11   282   -41  -53 45 37  -54 21 58  -53 23 22  -54 44  4
    166  0  0   -54 13 33   14 59 48    10   281   -40  -53 55 27  -54 31 38  -53 33 18  -54 53 38
    167  0  0   -54 22 37   14 59 45    10   280   -40  -54  4 35  -54 40 36  -53 42 32  -55  2 31
    168  0  0   -54 30 59   14 59 43     9   280   -39  -54 13  1  -54 48 54  -53 51  3  -55 10 44

    169  0  0   -54 38 40   14 59 40     9   279   -39  -54 20 46  -54 56 32  -53 58 53  -55 18 17
    170  0  0   -54 45 42   14 59 38     8   278   -38  -54 27 51  -55  3 30  -54  6  3  -55 25 11
    171  0  0   -54 52  4   14 59 36     7   277   -38  -54 34 17  -55  9 49  -54 12 32  -55 31 26
    172  0  0   -54 57 48   14 59 34     7   276   -37  -54 40  3  -55 15 30  -54 18 22  -55 37  4
    173  0  0   -55  2 53   14 59 33     6   276   -37  -54 45 11  -55 20 33  -54 23 32  -55 42  3

    174  0  0   -55  7 20   14 59 31     6   275   -36  -54 49 40  -55 24 58  -54 28  4  -55 46 26
    175  0  0   -55 11  9   14 59 30     5   274   -36  -54 53 31  -55 28 45  -54 31 57  -55 50 11
    176  0  0   -55 14 21   14 59 29     5   273   -35  -54 56 44  -55 31 56  -54 35 12  -55 53 20
    177  0  0   -55 16 56   14 59 28     4   272   -35  -54 59 20  -55 34 30  -54 37 49  -55 55 52
    178  0  0   -55 18 53   14 59 27     3   271   -34  -55  1 18  -55 36 26  -54 39 49  -55 57 48

    179  0  0   -55 20 14   14 59 26     3   271   -34  -55  2 39  -55 37 47  -54 41 10  -55 59  8
    180  0  0   -55 20 58   14 59 25     2   270   -33  -55  3 23  -55 38 30  -54 41 54  -55 59 52
  

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