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ASTROMETRIC UPDATE:
OCCULTATION BY (1464) ARMISTICIA - 2010 May 02

[Detailed Finder Charts]


Updated:   2010 MAR 03, 20:50 UT

Event Rank : 25

(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.

Armisticia Update Map


On 2010 May 02 UT, the 27 km diameter asteroid (1464) Armisticia will occult a 9.5 mag star in the constellation Sagittarius for observers along a path across the northern tip of New Zealand near Whangarei.

In the case of an occultation, the combined light of the asteroid and the star will drop by 6.7 mag to 16.2 mag (the magnitude of the asteroid) for at most 9.1 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 :
                   Centre              Star  Star   Sun     Path Limit1           Path Limit2           Error Limit1          Error Limit2
  E. Longitude    Latitude      U.T.    Alt   Az    Alt                                                                                       
      o  '  "     o  '  "    h  m  s     o     o     o    o  '  "    o  '  "    o  '  "    o  '  "    o  '  "    o  '  "    o  '  "    o  '  "
                                                         Longitude  Latitude   Longitude  Latitude   Longitude  Latitude   Longitude  Latitude
    179  0 33   -34  3 29   11  8 15    25   100   -68  179 17 38  -34  9 27  178 43 20  -33 57 27 -179 13 13  -34 40 17  177  8 58  -33 24  1
    177 35 33   -34 38  2   11  8 47    24   101   -67  177 53 11  -34 44 16  177 17 47  -34 31 44  179 25  0  -35 16 23  175 40 11  -33 56 45
    176  5 21   -35 11  4   11  9 19    23   101   -66  176 23 36  -35 17 36  175 46 57  -35  4 28  177 58 26  -35 51 10  174  5 36  -34 27 41
    174 29 19   -35 42 20   11  9 51    22   102   -65  174 48 16  -35 49 12  174 10 11  -35 35 22  176 26 34  -36 24 27  172 24 26  -34 56 31

    172 46 41   -36 11 31   11 10 23    21   102   -63  173  6 29  -36 18 47  172 26 41  -36  4  8  174 48 48  -36 55 58  170 35 40  -35 22 48
    170 56 29   -36 38 12   11 10 55    20   103   -62  171 17 17  -36 45 57  170 35 26  -36 30 20  173  4 22  -37 25 26  168 38  0  -35 45 58
    168 57 26   -37  1 51   11 11 27    19   104   -61  169 19 27  -37 10 11  168 35  5  -36 53 23  171 12 19  -37 52 25  166 29 31  -36  5 13
    166 47 44   -37 21 42   11 12  0    17   105   -59  167 11 20  -37 30 46  166 23 44  -37 12 27  169 11 22  -38 16 23  164  7 26  -36 19 21

Uncertainty in time = +/- 24 secs

Prediction of 2010 Mar  4.0

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