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ASTROMETRIC UPDATE:
OCCULTATION BY (211) ISOLDA - 2022 Sep 26

[Detailed Finder Charts]


Updated:   2022 AUG 20, 02:32 UT

Event Rank : 100

(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.

Isolda Update Map


On 2022 Sep 26 UT, the 149.1 km diameter asteroid (211) Isolda will occult a 11.2 mag star in the constellation Pisces for observers along a broad path across the North Island of New Zealand, including the islans north of about Auckland, at low elevation.

In the case of an occultation, the combined light of the asteroid and the star will drop by 1.36 mag to 12.15 mag (the magnitude of the asteroid) for at most 19.270 seconds.

This update is based on, astrometry for the asteroid kindly provided by the IAU Minor Planet Center.

This work has made use of data from the European Space Agency (ESA)mission Gaia (http://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, http://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC has been provided by national institutions, inparticular the institutions participating in the Gaia Multilateral Agreement.

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 1205-00090-1 by 211 Isolda on 2022 Sep 26
                  Centre              Star  Star   Sun      Path Limits           Error Limits       Alt
  E. Longitude   Latitude      U.T.    Alt    Az   Alt    Limit 1    Limit 2    Limit 3    Limit 4   Crn
      o  '  "     o  '  "    h  m  s     o     o     o    o  '  "    o  '  "    o  '  "    o  '  "
                                                         Latitude   Latitude   Latitude   Latitude
    160  0  0   -40 58 32    9 50  8.7     1    67   -28  -40 10  2  -41 47 24  -40  4 22  -41 53  9   ....
    161  0  0   -40 39 30    9 50  8.4     2    66   -29  -39 50 54  -41 28 27  -39 45 13  -41 34 14   0.27
    162  0  0   -40 20  9    9 50  8.0     2    66   -30  -39 31 27  -41  9 12  -39 25 46  -41 14 59   0.35
    163  0  0   -40  0 28    9 50  7.4     3    65   -30  -39 11 42  -40 49 37  -39  6  0  -40 55 25   0.38
    164  0  0   -39 40 29    9 50  6.5     4    65   -31  -38 51 37  -40 29 43  -38 45 55  -40 35 32   0.41

    165  0  0   -39 20 12    9 50  5.5     5    64   -32  -38 31 14  -40  9 31  -38 25 31  -40 15 20   0.42
    166  0  0   -38 59 36    9 50  4.3     6    63   -33  -38 10 33  -39 49  0  -38  4 50  -39 54 50   0.43
    167  0  0   -38 38 42    9 50  2.8     7    63   -34  -37 49 35  -39 28 11  -37 43 50  -39 34  1   0.44
    168  0  0   -38 17 30    9 50  1.2     7    62   -35  -37 28 18  -39  7  5  -37 22 33  -39 12 55   0.45
    169  0  0   -37 56  1    9 49 59.3     8    61   -35  -37  6 44  -38 45 40  -37  0 59  -38 51 31   0.45

    170  0  0   -37 34 15    9 49 57.2     9    61   -36  -36 44 53  -38 23 58  -36 39  7  -38 29 50   0.45
    171  0  0   -37 12 11    9 49 54.9    10    60   -37  -36 22 46  -38  2  0  -36 16 59  -38  7 52   0.46
    172  0  0   -36 49 52    9 49 52.4    11    60   -38  -36  0 22  -37 39 44  -35 54 35  -37 45 37   0.46
    173  0  0   -36 27 16    9 49 49.7    12    59   -39  -35 37 42  -37 17 12  -35 31 55  -37 23  6   0.46
    174  0  0   -36  4 24    9 49 46.7    13    58   -40  -35 14 47  -36 54 25  -35  8 59  -37  0 18   0.47

    175  0  0   -35 41 18    9 49 43.5    14    58   -40  -34 51 37  -36 31 21  -34 45 49  -36 37 16   0.47
    176  0  0   -35 17 56    9 49 40.1    14    57   -41  -34 28 12  -36  8  3  -34 22 23  -36 13 58   0.47
    177  0  0   -34 54 20    9 49 36.5    15    57   -42  -34  4 33  -35 44 30  -33 58 44  -35 50 25   0.47
    178  0  0   -34 30 29    9 49 32.6    16    56   -43  -33 40 39  -35 20 43  -33 34 50  -35 26 38   0.47
    179  0  0   -34  6 26    9 49 28.5    17    55   -44  -33 16 33  -34 56 42  -33 10 43  -35  2 37   0.47
Uncertainty in time = +/- 5 secs
Prediction of 2022 Aug 20.1

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