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ASTROMETRIC UPDATE:
OCCULTATION BY (98) IANTHE - 2023 Jul 31

[Edwin Goffin's Prediction + Finder Charts]

[Detailed Finder Charts]


Updated:   2023 MAY 28, 23:43 UT

Event Rank : 99

(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.

Ianthe Update Map


On 2023 Jul 31 UT, the 108.8 km diameter asteroid (98) Ianthe will occult a 12.4 mag star in the constellation Corona Australis for observers along a path across the far south-western corner of the South Island of New Zealand, in late evening twilight, possibly visible from Invercargill or Manapouri.

In the case of an occultation, the combined light of the asteroid and the star will drop by 1.58 mag to 13.65 mag (the magnitude of the asteroid) for at most 10.690 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 UCAC4-230-166321 by 98 Ianthe on 2023 Jul 31
                   Centre              Star  Star   Sun     Path Limit1           Path Limit2           Error Limit1          Error Limit2       Alt
  E. Longitude    Latitude      U.T.    Alt   Az    Alt                                                                                          Crn
      o  '  "     o  '  "    h  m  s     o     o     o    o  '  "    o  '  "    o  '  "    o  '  "    o  '  "    o  '  "    o  '  "    o  '  "
                                                         Longitude  Latitude   Longitude  Latitude   Longitude  Latitude   Longitude  Latitude
    168  2 36   -49 49 47    7  3 54.7    55   101   -15  168 55 46  -49 44 24  167  8 52  -49 54 42  169 27  4  -49 40 59  166 36 41  -49 57 24   0.62
    167 52 32   -49 30 23    7  3 58.2    54   102   -15  168 45 24  -49 25  4  166 59  6  -49 35 14  169 16 32  -49 21 43  166 27  7  -49 37 53   0.62
    167 42 28   -49 10 58    7  4  1.8    54   103   -15  168 35  3  -49  5 43  166 49 20  -49 15 44  169  6  0  -49  2 24  166 17 31  -49 18 21   0.62

    167 32 23   -48 51 30    7  4  5.3    54   103   -15  168 24 41  -48 46 21  166 39 33  -48 56 12  168 55 28  -48 43  4  166  7 55  -48 58 47   0.62
    167 22 18   -48 32  1    7  4  8.9    54   104   -15  168 14 18  -48 26 56  166 29 45  -48 36 39  168 44 55  -48 23 42  165 58 18  -48 39 10   0.62
    167 12 12   -48 12 30    7  4 12.4    54   104   -15  168  3 56  -48  7 29  166 19 57  -48 17  3  168 34 23  -48  4 18  165 48 39  -48 19 32   0.62
    167  2  6   -47 52 56    7  4 16.0    54   105   -14  167 53 33  -47 48  0  166 10  7  -47 57 25  168 23 50  -47 44 52  165 38 59  -47 59 51   0.62
    166 51 58   -47 33 21    7  4 19.5    53   105   -14  167 43  9  -47 28 29  166  0 15  -47 37 45  168 13 18  -47 25 24  165 29 18  -47 40  9   0.62

    166 41 50   -47 13 43    7  4 23.1    53   106   -14  167 32 45  -47  8 56  165 50 23  -47 18  3  168  2 44  -47  5 53  165 19 35  -47 20 24   0.62
    166 31 40   -46 54  3    7  4 26.6    53   106   -14  167 22 20  -46 49 21  165 40 29  -46 58 18  167 52 10  -46 46 21  165  9 51  -47  0 36   0.61
    166 21 30   -46 34 21    7  4 30.2    53   107   -14  167 11 55  -46 29 43  165 30 34  -46 38 31  167 41 36  -46 26 46  165  0  6  -46 40 47   0.61
    166 11 18   -46 14 36    7  4 33.7    53   107   -14  167  1 28  -46 10  3  165 20 38  -46 18 42  167 31  1  -46  7  8  164 50 18  -46 20 55   0.61
    166  1  6   -45 54 48    7  4 37.3    52   108   -13  166 51  1  -45 50 20  165 10 40  -45 58 50  167 20 25  -45 47 28  164 40 29  -46  1  0   0.61

    165 50 52   -45 34 59    7  4 40.8    52   108   -13  166 40 33  -45 30 35  165  0 40  -45 38 55  167  9 48  -45 27 46  164 30 38  -45 41  3   0.61
    165 40 36   -45 15  6    7  4 44.4    52   108   -13  166 30  3  -45 10 47  164 50 39  -45 18 58  166 59 11  -45  8  1  164 20 45  -45 21  3   0.61
    165 30 19   -44 55 11    7  4 47.9    52   109   -13  166 19 33  -44 50 57  164 40 36  -44 58 58  166 48 32  -44 48 13  164 10 51  -45  1  0   0.61
    165 20  1   -44 35 13    7  4 51.5    52   109   -13  166  9  1  -44 31  4  164 30 31  -44 38 55  166 37 53  -44 28 23  164  0 54  -44 40 54   0.61
    165  9 41   -44 15 12    7  4 55.0    51   110   -12  165 58 27  -44 11  8  164 20 25  -44 18 50  166 27 12  -44  8 30  163 50 55  -44 20 46   0.61

    164 59 19   -43 55  8    7  4 58.6    51   110   -12  165 47 53  -43 51  9  164 10 16  -43 58 41  166 16 29  -43 48 34  163 40 55  -44  0 35   0.61
    164 48 55   -43 35  2    7  5  2.2    51   111   -12  165 37 17  -43 31  7  164  0  5  -43 38 30  166  5 46  -43 28 35  163 30 51  -43 40 20   0.61
    164 38 30   -43 14 52    7  5  5.7    51   111   -12  165 26 39  -43 11  2  163 49 52  -43 18 15  165 55  1  -43  8 33  163 20 46  -43 20  2   0.61
    164 28  2   -42 54 39    7  5  9.3    50   112   -12  165 15 59  -42 50 53  163 39 37  -42 57 57  165 44 14  -42 48 27  163 10 38  -42 59 41   0.61
    164 17 33   -42 34 22    7  5 12.8    50   112   -11  165  5 18  -42 30 42  163 29 19  -42 37 35  165 33 26  -42 28 19  163  0 28  -42 39 17   0.61

    164  7  1   -42 14  2    7  5 16.4    50   113   -11  164 54 35  -42 10 27  163 18 59  -42 17 10  165 22 36  -42  8  7  162 50 15  -42 18 49   0.61
    163 56 27   -41 53 39    7  5 19.9    50   113   -11  164 43 50  -41 50  9  163  8 37  -41 56 42  165 11 44  -41 47 52  162 39 59  -41 58 18   0.61
    163 45 51   -41 33 12    7  5 23.5    49   113   -11  164 33  3  -41 29 47  162 58 12  -41 36 10  165  0 51  -41 27 33  162 29 41  -41 37 43   0.61
    163 35 12   -41 12 42    7  5 27.0    49   114   -11  164 22 13  -41  9 22  162 47 44  -41 15 35  164 49 55  -41  7 11  162 19 20  -41 17  4   0.61
    163 24 31   -40 52  8    7  5 30.6    49   114   -10  164 11 21  -40 48 53  162 37 14  -40 54 55  164 38 57  -40 46 45  162  8 56  -40 56 22   0.61

    163 13 48   -40 31 30    7  5 34.1    49   115   -10  164  0 27  -40 28 20  162 26 40  -40 34 12  164 27 57  -40 26 15  161 58 28  -40 35 35   0.61
    163  3  1   -40 10 48    7  5 37.7    48   115   -10  163 49 31  -40  7 44  162 16  4  -40 13 24  164 16 55  -40  5 42  161 47 58  -40 14 44   0.61
    162 52 12   -39 50  2    7  5 41.2    48   115   -10  163 38 32  -39 47  3  162  5 24  -39 52 33  164  5 50  -39 45  4  161 37 24  -39 53 50   0.61
    162 41 19   -39 29 11    7  5 44.8    48   116   -10  163 27 30  -39 26 18  161 54 42  -39 31 37  163 54 42  -39 24 22  161 26 48  -39 32 51   0.61
    162 30 24   -39  8 17    7  5 48.3    48   116    -9  163 16 25  -39  5 29  161 43 56  -39 10 37  163 43 32  -39  3 37  161 16  7  -39 11 47   0.61

    162 19 26   -38 47 18    7  5 51.9    47   117    -9  163  5 18  -38 44 36  161 33  7  -38 49 33  163 32 20  -38 42 47  161  5 23  -38 50 39   0.61
    162  8 24   -38 26 14    7  5 55.4    47   117    -9  162 54  7  -38 23 38  161 22 14  -38 28 23  163 21  4  -38 21 52  160 54 36  -38 29 27   0.61
    161 57 19   -38  5  6    7  5 59.0    47   117    -9  162 42 54  -38  2 35  161 11 17  -38  7  9  163  9 45  -38  0 53  160 43 44  -38  8  9   0.61
    161 46 10   -37 43 53    7  6  2.5    47   118    -8  162 31 37  -37 41 28  161  0 17  -37 45 51  162 58 23  -37 39 49  160 32 49  -37 46 47   0.61
    161 34 58   -37 22 35    7  6  6.1    46   118    -8  162 20 17  -37 20 16  160 49 13  -37 24 27  162 46 58  -37 18 41  160 21 50  -37 25 20   0.61

    161 23 42   -37  1 13    7  6  9.6    46   118    -8  162  8 53  -36 58 59  160 38  5  -37  2 58  162 35 30  -36 57 27  160 10 46  -37  3 47   0.61
    161 12 22   -36 39 44    7  6 13.2    46   119    -8  161 57 26  -36 37 37  160 26 53  -36 41 24  162 23 58  -36 36  9  159 59 39  -36 42  9   0.61
    161  0 59   -36 18 11    7  6 16.8    45   119    -8  161 45 55  -36 16 10  160 15 36  -36 19 44  162 12 23  -36 14 45  159 48 27  -36 20 26   0.61
    160 49 31   -35 56 32    7  6 20.3    45   119    -7  161 34 20  -35 54 38  160  4 15  -35 57 59  162  0 44  -35 53 16  159 37 10  -35 58 37   0.60
    160 37 59   -35 34 48    7  6 23.9    45   120    -7  161 22 41  -35 32 59  159 52 50  -35 36  8  161 49  1  -35 31 42  159 25 48  -35 36 42   0.60

    160 26 22   -35 12 58    7  6 27.4    45   120    -7  161 10 58  -35 11 16  159 41 19  -35 14 11  161 37 14  -35 10  2  159 14 22  -35 14 41   0.60
    160 14 41   -34 51  2    7  6 31.0    44   121    -7  160 59 10  -34 49 26  159 29 45  -34 52  8  161 25 23  -34 48 16  159  2 51  -34 52 34   0.60
    160  2 55   -34 28 59    7  6 34.5    44   121    -6  160 47 18  -34 27 30  159 18  5  -34 29 59  161 13 27  -34 26 24  158 51 15  -34 30 21   0.60
    159 51  4   -34  6 51    7  6 38.1    44   121    -6  160 35 22  -34  5 28  159  6 20  -34  7 44  161  1 27  -34  4 26  158 39 33  -34  8  1   0.60
    159 39  8   -33 44 35    7  6 41.6    43   122    -6  160 23 20  -33 43 20  158 54 29  -33 45 21  160 49 22  -33 42 22  158 27 46  -33 45 35   0.60

    159 27  7   -33 22 14    7  6 45.2    43   122    -6  160 11 14  -33 21  5  158 42 33  -33 22 52  160 37 13  -33 20 11  158 15 53  -33 23  1   0.60
    159 15  0   -32 59 45    7  6 48.7    43   122    -5  159 59  2  -32 58 44  158 30 32  -33  0 16  160 24 58  -32 57 54  158  3 54  -33  0 21   0.60
    159  2 48   -32 37  9    7  6 52.3    42   122    -5  159 46 45  -32 36 15  158 18 24  -32 37 33  160 12 38  -32 35 30  157 51 49  -32 37 33   0.60
    158 50 30   -32 14 26    7  6 55.8    42   123    -5  159 34 23  -32 13 40  158  6 10  -32 14 42  160  0 13  -32 12 58  157 39 38  -32 14 37   0.60
    158 38  6   -31 51 35    7  6 59.4    42   123    -4  159 21 54  -31 50 57  157 53 50  -31 51 44  159 47 42  -31 50 20  157 27 20  -31 51 34   0.60

    158 25 35   -31 28 37    7  7  2.9    41   123    -4  159  9 20  -31 28  6  157 41 23  -31 28 37  159 35  6  -31 27 34  157 14 55  -31 28 23   0.60
    158 12 59   -31  5 31    7  7  6.5    41   124    -4  158 56 40  -31  5  8  157 28 50  -31  5 23  159 22 23  -31  4 40  157  2 24  -31  5  3   0.60
    158  0 15   -30 42 16    7  7 10.0    41   124    -4  158 43 53  -30 42  1  157 16  9  -30 42  0  159  9 35  -30 41 38  156 49 45  -30 41 35   0.60
    157 47 25   -30 18 53    7  7 13.6    40   124    -3  158 31  0  -30 18 47  157  3 22  -30 18 28  158 56 39  -30 18 28  156 36 59  -30 17 58   0.60
    157 34 27   -29 55 21    7  7 17.1    40   125    -3  158 17 59  -29 55 23  156 50 26  -29 54 47  158 43 38  -29 55 10  156 24  5  -29 54 12   0.60

    157 21 22   -29 31 40    7  7 20.7    39   125    -3  158  4 52  -29 31 51  156 37 23  -29 30 57  158 30 29  -29 31 43  156 11  3  -29 30 16   0.60
    157  8  9   -29  7 50    7  7 24.2    39   125    -2  157 51 37  -29  8 10  156 24 12  -29  6 57  158 17 13  -29  8  7  155 57 52  -29  6 10   0.60
    156 54 48   -28 43 49    7  7 27.8    39   125    -2  157 38 15  -28 44 19  156 10 53  -28 42 47  158  3 49  -28 44 21  155 44 33  -28 41 55   0.60
    156 41 19   -28 19 39    7  7 31.4    38   126    -2  157 24 44  -28 20 18  155 57 24  -28 18 27  157 50 18  -28 20 26  155 31  6  -28 17 29   0.60
    156 27 41   -27 55 19    7  7 34.9    38   126    -1  157 11  6  -27 56  8  155 43 47  -27 53 57  157 36 39  -27 56 21  155 17 28  -27 52 52   0.60

    156 13 54   -27 30 47    7  7 38.5    38   126    -1  156 57 18  -27 31 46  155 30  0  -27 29 15  157 22 51  -27 32  6  155  3 41  -27 28  3   0.60
    155 59 58   -27  6  5    7  7 42.0    37   126    -1  156 43 22  -27  7 14  155 16  4  -27  4 22  157  8 55  -27  7 40  154 49 44  -27  3  3   0.60
    155 45 52   -26 41 11    7  7 45.6    37   127    -1  156 29 17  -26 42 31  155  1 57  -26 39 16  156 54 49  -26 43  3  154 35 37  -26 37 51   0.60
    155 31 36   -26 16  5    7  7 49.1    36   127     0  156 15  1  -26 17 36  154 47 39  -26 13 59  156 40 34  -26 18 14  154 21 19  -26 12 27   0.60
    155 17  9   -25 50 47    7  7 52.7    36   127     0  156  0 36  -25 52 29  154 33 11  -25 48 28  156 26  9  -25 53 13  154  6 49  -25 46 49   0.60

    155  2 32   -25 25 15    7  7 56.2    35   128     1  155 46  0  -25 27  9  154 18 31  -25 22 45  156 11 34  -25 28  1  153 52  8  -25 20 57   0.60
    154 47 42   -24 59 30    7  7 59.8    35   128     1  155 31 13  -25  1 37  154  3 39  -24 56 47  155 56 49  -25  2 35  153 37 14  -24 54 52   0.60
    154 32 41   -24 33 31    7  8  3.3    35   128     1  155 16 15  -24 35 51  153 48 35  -24 30 35  155 41 52  -24 36 56  153 22  7  -24 28 31   0.60
    154 17 27   -24  7 18    7  8  6.9    34   128     2  155  1  5  -24  9 50  153 33 17  -24  4  7  155 26 43  -24 11  3  153  6 47  -24  1 55   0.60
    154  2  1   -23 40 49    7  8 10.4    34   128     2  154 45 42  -23 43 35  153 17 45  -23 37 24  155 11 22  -23 44 56  152 51 12  -23 35  3   0.60

    153 46 20   -23 14  5    7  8 14.0    33   129     2  154 30  6  -23 17  5  153  2  0  -23 10 25  154 55 49  -23 18 34  152 35 23  -23  7 55   0.60
    153 30 25   -22 47  4    7  8 17.5    33   129     3  154 14 16  -22 50 19  152 45 59  -22 43  8  154 40  2  -22 51 56  152 19 18  -22 40 28   0.60
    153 14 15   -22 19 45    7  8 21.1    32   129     3  153 58 12  -22 23 16  152 29 42  -22 15 33  154 24  1  -22 25  2  152  2 56  -22 12 43   0.60
    152 57 49   -21 52  9    7  8 24.6    32   129     3  153 41 53  -21 55 55  152 13  8  -21 47 40  154  7 45  -21 57 51  151 46 18  -21 44 39   0.60
    152 41  6   -21 24 13    7  8 28.2    31   130     4  153 25 17  -21 28 17  151 56 17  -21 19 26  153 51 14  -21 30 22  151 29 21  -21 16 15   0.60

    152 24  6   -20 55 58    7  8 31.7    31   130     4  153  8 26  -21  0 19  151 39  7  -20 50 52  153 34 27  -21  2 34  151 12  5  -20 47 29   0.60
    152  6 47   -20 27 21    7  8 35.3    30   130     5  152 51 16  -20 32  1  151 21 38  -20 21 56  153 17 22  -20 34 26  150 54 29  -20 18 20   0.60
    151 49  8   -19 58 23    7  8 38.8    30   130     5  152 33 48  -20  3 22  151  3 47  -19 52 37  153  0  0  -20  5 58  150 36 31  -19 48 48   0.60
    151 31  9   -19 29  1    7  8 42.4    29   130     6  152 16  0  -19 34 20  150 45 35  -19 22 53  152 42 18  -19 37  8  150 18 11  -19 18 50   0.60
    151 12 48   -18 59 14    7  8 46.0    29   131     6  151 57 51  -19  4 55  150 27  0  -18 52 43  152 24 17  -19  7 55  149 59 26  -18 48 26   0.60

    150 54  3   -18 29  2    7  8 49.5    28   131     6  151 39 20  -18 35  6  150  8  0  -18 22  6  152  5 53  -18 38 18  149 40 16  -18 17 34   0.60
    150 34 53   -17 58 22    7  8 53.1    28   131     7  151 20 26  -18  4 50  149 48 33  -17 51  0  151 47  7  -18  8 16  149 20 38  -17 46 11   0.60
    150 15 17   -17 27 12    7  8 56.6    27   131     7  151  1  7  -17 34  6  149 28 38  -17 19 23  151 27 57  -17 37 46  149  0 31  -17 14 16   0.60
    149 55 13   -16 55 31    7  9  0.2    27   131     8  150 41 21  -17  2 52  149  8 13  -16 47 13  151  8 22  -17  6 48  148 39 52  -16 41 47   0.60
    149 34 38   -16 23 17    7  9  3.7    26   132     8  150 21  7  -16 31  7  148 47 15  -16 14 27  150 48 18  -16 35 19  148 18 39  -16  8 42   0.60

    149 13 30   -15 50 27    7  9  7.3    25   132     9  150  0 22  -15 58 49  148 25 42  -15 41  3  150 27 46  -16  3 18  147 56 50  -15 34 56   0.60
    148 51 47   -15 16 59    7  9 10.8    25   132     9  149 39  3  -15 25 54  148  3 31  -15  6 58  150  6 41  -15 30 42  147 34 21  -15  0 28   0.60
    148 29 26   -14 42 49    7  9 14.4    24   132    10  149 17 10  -14 52 20  147 40 38  -14 32  9  149 45  3  -14 57 28  147 11  8  -14 25 13   0.60
    148  6 23   -14  7 55    7  9 17.9    24   132    10  148 54 38  -14 18  5  147 17  1  -13 56 31  149 22 47  -14 23 35  146 47  8  -13 49  7   0.60
    147 42 35   -13 32 11    7  9 21.5    23   133    11  148 31 24  -13 43  4  146 52 34  -13 20  0  148 59 52  -13 48 57  146 22 15  -13 12  6   0.60

    147 17 57   -12 55 35    7  9 25.0    22   133    12  148  7 24  -13  7 14  146 27 13  -12 42 32  148 36 13  -13 13 33  145 56 25  -12 34  4   0.60
    146 52 24   -12 18  0    7  9 28.6    21   133    12  147 42 35  -12 30 31  146  0 51  -12  4  0  148 11 46  -12 37 17  145 29 31  -11 54 54   0.60
    146 25 51   -11 39 21    7  9 32.1    21   133    13  147 16 49  -11 52 48  145 33 22  -11 24 16  147 46 27  -12  0  5  145  1 25  -11 14 29   0.60
    145 58  9   -10 59 29    7  9 35.7    20   133    13  146 50  3  -11 14  0  145  4 37  -10 43 13  147 20 10  -11 21 51  144 31 57  -10 32 39   0.60
    145 29 11   -10 18 17    7  9 39.2    19   133    14  146 22  8  -10 33 59  144 34 25  -10  0 40  146 52 48  -10 42 28  144  0 57  - 9 49 11   0.60

    144 58 46   - 9 35 35    7  9 42.8    18   133    15  145 52 55  - 9 52 36  144  2 35  - 9 16 24  146 24 13  -10  1 49  143 28  8  - 9  3 52   0.60
    144 26 40   - 8 51  7    7  9 46.3    17   134    16  145 22 14  - 9  9 42  143 28 49  - 8 30  8  145 54 16  - 9 19 43  142 53 12  - 8 16 22   0.61
    143 52 38   - 8  4 39    7  9 49.9    16   134    16  144 49 52  - 8 25  1  142 52 46  - 7 41 31  145 22 46  - 8 35 59  142 15 45  - 7 26 16   0.61
    143 16 17   - 7 15 48    7  9 53.5    16   134    17  144 15 31  - 7 38 17  142 13 58  - 6 50  5  144 49 26  - 7 50 21  141 35 12  - 6 33  1   0.61
    142 37  9   - 6 24  5    7  9 57.0    14   134    18  143 38 49  - 6 49  8  141 31 44  - 5 55 10  144 13 58  - 7  2 30  140 50 44  - 5 35 47   0.61

    141 54 32   - 5 28 49    7 10  0.6    13   134    19  142 59 17  - 5 57  5  140 45  8  - 4 55 49  143 35 57  - 6 12  1  140  1  7  - 4 33 21   0.62
    141  7 28   - 4 29  2    7 10  4.1    12   134    20  142 16 12  - 5  1 23  139 52 36  - 3 50 28  142 54 46  - 5 18 19  139  4 15  - 3 23 38   0.62
    140 14 19   - 3 23  8    7 10  7.7    11   134    21  141 28 32  - 4  1  3  138 51 27  - 2 36 29  142  9 38  - 4 20 33  137 56 10  - 2  2 43   0.63
    139 12 20   - 2  8 21    7 10 11.2     9   134    23  140 34 38  - 2 54 25  137 36  3  - 1  8 19  141 19 14  - 3 17 29  136 27  0  - 0 20 54   0.65
Uncertainty in time = +/- 4 secs
Prediction of 2023 May 29.0

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