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ASTROMETRIC UPDATE:
OCCULTATION BY (1660) WOOD - 2012 JAN 30

[Detailed Finder Charts]


Updated:   2012 Jan 14, 16:53 UT

Event Rank : 40

(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.

Wood Update Map

Wood Update Map


On 2012 Jan 30 UT, the 18 km diameter asteroid (1660) Wood will occult a 11.3 mag star in the constellation Puppis for observers along a path passing near Cape Reinga at the northern tip of New Zealand. The shadow will then cross Queensland, beginning near Marlborough and leaving over the Cobourg Peninsula in the Northern Territory.

In the case of an occultation, the combined light of the asteroid and the star will drop by 2.5 mag to 13.7 mag (the magnitude of the asteroid) for at most 4.4 seconds.

This update is based on UNSO/Flagstaff astrometry for the asteroid kindly provided by Alice Monet, 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 TYC 6557-00392-1 by 1660 Wood on 2012 Jan 30 
                  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
    131  0  0   - 9 47 37   12 31 59    58   122   -38  - 9 41 34  - 9 53 39  - 9 21 31  -10 13 43
    132  0  0   -10 30 48   12 31 33    59   122   -39  -10 24 46  -10 36 50  -10  4 44  -10 56 53
    133  0  0   -11 13 43   12 31  7    60   122   -39  -11  7 42  -11 19 45  -10 47 41  -11 39 46
    134  0  0   -11 56 22   12 30 41    61   121   -39  -11 50 21  -12  2 23  -11 30 22  -12 22 23
    135  0  0   -12 38 43   12 30 14    62   121   -40  -12 32 43  -12 44 44  -12 12 46  -13  4 41

    136  0  0   -13 20 46   12 29 48    63   120   -40  -13 14 45  -13 26 46  -12 54 51  -13 46 41
    137  0  0   -14  2 28   12 29 21    64   120   -40  -13 56 29  -14  8 28  -13 36 36  -14 28 21
    138  0  0   -14 43 50   12 28 54    65   119   -40  -14 37 51  -14 49 49  -14 18  0  -15  9 40
    139  0  0   -15 24 50   12 28 27    66   118   -41  -15 18 52  -15 30 49  -14 59  4  -15 50 38
    140  0  0   -16  5 28   12 28  0    67   118   -41  -15 59 31  -16 11 26  -15 39 45  -16 31 13

    141  0  0   -16 45 43   12 27 33    68   117   -41  -16 39 47  -16 51 40  -16 20  3  -17 11 25
    142  0  0   -17 25 34   12 27  6    70   116   -41  -17 19 38  -17 31 30  -16 59 57  -17 51 12
    143  0  0   -18  5  0   12 26 38    71   115   -41  -17 59  5  -18 10 55  -17 39 26  -18 30 35
    144  0  0   -18 44  1   12 26 11    72   114   -41  -18 38  6  -18 49 55  -18 18 30  -19  9 32
    145  0  0   -19 22 35   12 25 44    73   113   -42  -19 16 42  -19 28 29  -18 57  9  -19 48  3

    146  0  0   -20  0 43   12 25 17    74   112   -42  -19 54 50  -20  6 36  -19 35 20  -20 26  7
    147  0  0   -20 38 24   12 24 50    75   111   -42  -20 32 32  -20 44 15  -20 13  4  -21  3 44
    148  0  0   -21 15 36   12 24 23    76   109   -42  -21  9 45  -21 21 27  -20 50 21  -21 40 53
    149  0  0   -21 52 20   12 23 56    77   108   -42  -21 46 30  -21 58 10  -21 27  9  -22 17 33
    150  0  0   -22 28 36   12 23 29    77   106   -42  -22 22 47  -22 34 25  -22  3 28  -22 53 44

    151  0  0   -23  4 22   12 23  2    78   104   -42  -22 58 34  -23 10 10  -22 39 18  -23 29 26
    152  0  0   -23 39 38   12 22 36    79   102   -42  -23 33 51  -23 45 25  -23 14 39  -24  4 38
    153  0  0   -24 14 24   12 22  9    80    99   -42  -24  8 38  -24 20 10  -23 49 29  -24 39 20
    154  0  0   -24 48 40   12 21 43    81    96   -42  -24 42 55  -24 54 25  -24 23 49  -25 13 31
    155  0  0   -25 22 25   12 21 17    82    92   -42  -25 16 41  -25 28  9  -24 57 39  -25 47 12

    156  0  0   -25 55 38   12 20 50    83    87   -41  -25 49 55  -26  1 22  -25 30 57  -26 20 21
    157  0  0   -26 28 21   12 20 24    83    82   -41  -26 22 39  -26 34  3  -26  3 44  -26 52 59
    158  0  0   -27  0 32   12 19 59    84    75   -41  -26 54 51  -27  6 13  -26 35 59  -27 25  6
    159  0  0   -27 32 11   12 19 33    84    66   -41  -27 26 31  -27 37 51  -27  7 43  -27 56 40
    160  0  0   -28  3 19   12 19  8    85    56   -41  -27 57 40  -28  8 58  -27 38 55  -28 27 43

    161  0  0   -28 33 54   12 18 42    85    44   -41  -28 28 16  -28 39 32  -28  9 35  -28 58 14
    162  0  0   -29  3 57   12 18 17    85    31   -41  -28 58 20  -29  9 34  -28 39 43  -29 28 12
    163  0  0   -29 33 28   12 17 52    85    19   -40  -29 27 52  -29 39  4  -29  9 18  -29 57 39
    164  0  0   -30  2 27   12 17 28    85     7   -40  -29 56 52  -30  8  1  -29 38 22  -30 26 33
    165  0  0   -30 30 53   12 17  3    84   358   -40  -30 25 19  -30 36 26  -30  6 53  -30 54 54

    166  0  0   -30 58 47   12 16 39    84   350   -40  -30 53 14  -31  4 19  -30 34 51  -31 22 43
    167  0  0   -31 26  8   12 16 15    83   343   -40  -31 20 37  -31 31 40  -31  2 17  -31 50  0
    168  0  0   -31 52 57   12 15 51    83   338   -39  -31 47 27  -31 58 28  -31 29 11  -32 16 44
    169  0  0   -32 19 14   12 15 27    82   333   -39  -32 13 45  -32 24 43  -31 55 33  -32 42 56
    170  0  0   -32 44 58   12 15  4    81   329   -39  -32 39 30  -32 50 26  -32 21 22  -33  8 36

    171  0  0   -33 10 11   12 14 41    80   326   -39  -33  4 44  -33 15 38  -32 46 38  -33 33 44
    172  0  0   -33 34 51   12 14 18    80   323   -38  -33 29 25  -33 40 16  -33 11 23  -33 58 19
    173  0  0   -33 58 58   12 13 55    79   321   -38  -33 53 34  -34  4 23  -33 35 36  -34 22 22
    174  0  0   -34 22 34   12 13 33    78   319   -38  -34 17 11  -34 27 58  -33 59 16  -34 45 54
    175  0  0   -34 45 39   12 13 11    77   317   -37  -34 40 16  -34 51  1  -34 22 25  -35  8 53

    176  0  0   -35  8 11   12 12 49    77   315   -37  -35  2 49  -35 13 33  -34 45  2  -35 31 21
Uncertainty in time = +/- 10 secs

Prediction of 2012 Jan 15.0


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