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ASTROMETRIC UPDATE:
OCCULTATION BY (718) ERIDA - 2022 Mar 17

[Edwin Goffin's Prediction + Finder Charts]

[Detailed Finder Charts]


Updated:   2022 JAN 31, 04:42 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.

Erida Update Map


On 2022 Mar 17 UT, the 66.8 km diameter asteroid (718) Erida will occult a 9.8 mag star in the constellation Sagittarius for observers along a path across central Western Australia from near Carnarvon to south-eastern Western Australia and into southern South Australia including Wyalla in morning twilight.

In the case of an occultation, the combined light of the asteroid and the star will drop by 4.91 mag to 14.72 mag (the magnitude of the asteroid) for at most 3.170 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 6851-06762-1 by 718 Erida on 2022 Mar 17
                  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
    110  0  0   -23 53 14   20 34 15.8    55   104   -30  -24 13 12  -23 33 17  -24 17 14  -23 29 16   0.12
    111  0  0   -24 17 34   20 34 20.3    56   103   -29  -24 37 29  -23 57 40  -24 41 31  -23 53 39   0.12
    112  0  0   -24 41 29   20 34 24.8    57   102   -28  -25  1 22  -24 21 38  -25  5 23  -24 17 38   0.12
    113  0  0   -25  4 59   20 34 29.3    58   102   -27  -25 24 48  -24 45 11  -25 28 49  -24 41 11   0.12
    114  0  0   -25 28  3   20 34 33.8    59   101   -26  -25 47 50  -25  8 17  -25 51 49  -25  4 18   0.12

    115  0  0   -25 50 41   20 34 38.4    60   100   -25  -26 10 25  -25 30 58  -26 14 24  -25 27  0   0.12
    116  0  0   -26 12 53   20 34 43.0    61    99   -24  -26 32 34  -25 53 13  -26 36 32  -25 49 15   0.12
    117  0  0   -26 34 39   20 34 47.6    62    99   -23  -26 54 17  -26 15  2  -26 58 15  -26 11  4   0.12
    118  0  0   -26 55 58   20 34 52.2    63    98   -22  -27 15 33  -26 36 24  -27 19 30  -26 32 27   0.12
    119  0  0   -27 16 51   20 34 56.8    64    97   -21  -27 36 23  -26 57 19  -27 40 19  -26 53 23   0.12

    120  0  0   -27 37 16   20 35  1.4    65    96   -20  -27 56 46  -27 17 48  -28  0 42  -27 13 52   0.12
    121  0  0   -27 57 15   20 35  6.1    66    95   -19  -28 16 42  -27 37 50  -28 20 37  -27 33 55   0.12
    122  0  0   -28 16 48   20 35 10.7    67    94   -18  -28 36 11  -27 57 25  -28 40  6  -27 53 30   0.12
    123  0  0   -28 35 53   20 35 15.4    68    93   -17  -28 55 13  -28 16 33  -28 59  8  -28 12 39   0.12
    124  0  0   -28 54 31   20 35 20.1    68    91   -16  -29 13 49  -28 35 13  -29 17 42  -28 31 20   0.12

    125  0  0   -29 12 41   20 35 24.8    69    90   -15  -29 31 57  -28 53 27  -29 35 50  -28 49 34   0.12
    126  0  0   -29 30 25   20 35 29.4    70    89   -14  -29 49 38  -29 11 13  -29 53 30  -29  7 21   0.12
    127  0  0   -29 47 42   20 35 34.1    71    87   -13  -30  6 51  -29 28 33  -30 10 44  -29 24 41   0.12
    128  0  0   -30  4 31   20 35 38.8    72    86   -13  -30 23 38  -29 45 25  -30 27 30  -29 41 33   0.12
    129  0  0   -30 20 53   20 35 43.5    73    84   -12  -30 39 57  -30  1 49  -30 43 49  -29 57 58   0.12

    130  0  0   -30 36 48   20 35 48.2    74    83   -11  -30 55 50  -30 17 47  -30 59 40  -30 13 56   0.12
    131  0  0   -30 52 15   20 35 52.8    74    81   -10  -31 11 15  -30 33 17  -31 15  5  -30 29 27   0.12
    132  0  0   -31  7 16   20 35 57.5    75    79    -9  -31 26 13  -30 48 20  -31 30  2  -30 44 30   0.12
    133  0  0   -31 21 49   20 36  2.2    76    77    -8  -31 40 43  -31  2 55  -31 44 33  -30 59  7   0.12
    134  0  0   -31 35 55   20 36  6.8    77    74    -7  -31 54 47  -31 17  4  -31 58 36  -31 13 16   0.12

    135  0  0   -31 49 34   20 36 11.5    78    71    -6  -32  8 24  -31 30 45  -32 12 12  -31 26 58   0.12
    136  0  0   -32  2 46   20 36 16.1    78    69    -5  -32 21 34  -31 44  0  -32 25 21  -31 40 12   0.12
    137  0  0   -32 15 31   20 36 20.8    79    65    -4  -32 34 17  -31 56 47  -32 38  4  -31 53  0   0.12
    138  0  0   -32 27 50   20 36 25.4    80    62    -4  -32 46 33  -32  9  7  -32 50 19  -32  5 21   0.12
    139  0  0   -32 39 41   20 36 30.0    80    58    -3  -32 58 22  -32 21  1  -33  2  8  -32 17 15   0.12

    140  0  0   -32 51  5   20 36 34.7    81    53    -2  -33  9 44  -32 32 27  -33 13 30  -32 28 42   0.12
    141  0  0   -33  2  3   20 36 39.3    81    48    -1  -33 20 40  -32 43 27  -33 24 26  -32 39 42   0.12
    142  0  0   -33 12 34   20 36 43.9    82    42     0  -33 31  9  -32 54  0  -33 34 54  -32 50 15   0.12
    143  0  0   -33 22 39   20 36 48.4    82    36     1  -33 41 12  -33  4  6  -33 44 57  -33  0 22   0.13
    144  0  0   -33 32 17   20 36 53.0    82    29     2  -33 50 48  -33 13 46  -33 54 32  -33 10  2   0.13

    145  0  0   -33 41 28   20 36 57.6    83    22     2  -33 59 58  -33 22 59  -34  3 42  -33 19 15   0.13
    146  0  0   -33 50 13   20 37  2.1    83    14     3  -34  8 41  -33 31 46  -34 12 25  -33 28  2   0.13
    147  0  0   -33 58 32   20 37  6.6    83     6     4  -34 16 58  -33 40  6  -34 20 42  -33 36 23   0.13
    148  0  0   -34  6 24   20 37 11.2    83   358     5  -34 24 49  -33 48  0  -34 28 32  -33 44 17   0.13
    149  0  0   -34 13 50   20 37 15.7    82   351     6  -34 32 14  -33 55 27  -34 35 57  -33 51 45   0.13

    150  0  0   -34 20 50   20 37 20.1    82   344     7  -34 39 13  -34  2 29  -34 42 55  -33 58 46   0.13
    151  0  0   -34 27 24   20 37 24.6    82   338     7  -34 45 45  -34  9  4  -34 49 28  -34  5 22   0.12
    152  0  0   -34 33 32   20 37 29.1    81   332     8  -34 51 52  -34 15 13  -34 55 34  -34 11 31   0.12
    153  0  0   -34 39 14   20 37 33.5    81   327     9  -34 57 33  -34 20 56  -35  1 15  -34 17 15   0.12
    154  0  0   -34 44 30   20 37 37.9    80   322    10  -35  2 48  -34 26 13  -35  6 30  -34 22 32   0.12

    155  0  0   -34 49 21   20 37 42.4    80   318    11  -35  7 37  -34 31  4  -35 11 19  -34 27 23   0.12
    156  0  0   -34 53 45   20 37 46.8    79   314    12  -35 12  1  -34 35 30  -35 15 42  -34 31 49   0.12
    157  0  0   -34 57 44   20 37 51.1    79   311    12  -35 15 59  -34 39 29  -35 19 40  -34 35 48   0.12
    158  0  0   -35  1 17   20 37 55.5    78   308    13  -35 19 31  -34 43  3  -35 23 12  -34 39 22   0.12
    159  0  0   -35  4 24   20 37 59.8    77   305    14  -35 22 38  -34 46 11  -35 26 19  -34 42 30   0.12

    160  0  0   -35  7  5   20 38  4.2    77   303    15  -35 25 19  -34 48 53  -35 29  0  -34 45 12   0.12
    161  0  0   -35  9 21   20 38  8.5    76   301    16  -35 27 34  -34 51  9  -35 31 15  -34 47 29   0.12
    162  0  0   -35 11 12   20 38 12.8    75   299    16  -35 29 24  -34 53  0  -35 33  5  -34 49 19   0.12
    163  0  0   -35 12 37   20 38 17.1    74   297    17  -35 30 49  -34 54 25  -35 34 30  -34 50 44   0.12
    164  0  0   -35 13 36   20 38 21.3    74   295    18  -35 31 48  -34 55 24  -35 35 29  -34 51 44   0.12

    165  0  0   -35 14 10   20 38 25.6    73   293    19  -35 32 22  -34 55 58  -35 36  2  -34 52 18   0.12
    166  0  0   -35 14 18   20 38 29.8    72   292    20  -35 32 30  -34 56  6  -35 36 10  -34 52 26   0.12
    167  0  0   -35 14  0   20 38 34.0    71   290    21  -35 32 12  -34 55 49  -35 35 53  -34 52  9   0.12
    168  0  0   -35 13 18   20 38 38.2    71   289    21  -35 31 30  -34 55  6  -35 35 10  -34 51 26   0.12
    169  0  0   -35 12  9   20 38 42.3    70   287    22  -35 30 22  -34 53 57  -35 34  2  -34 50 17   0.12

    170  0  0   -35 10 35   20 38 46.5    69   286    23  -35 28 48  -34 52 23  -35 32 29  -34 48 43   0.12
    171  0  0   -35  8 36   20 38 50.6    68   285    24  -35 26 49  -34 50 23  -35 30 30  -34 46 43   0.12
    172  0  0   -35  6 11   20 38 54.7    67   284    25  -35 24 25  -34 47 58  -35 28  6  -34 44 17   0.12
    173  0  0   -35  3 21   20 38 58.8    67   282    25  -35 21 35  -34 45  7  -35 25 16  -34 41 26   0.12
    174  0  0   -35  0  4   20 39  2.9    66   281    26  -35 18 19  -34 41 50  -35 22  0  -34 38  9   0.12

    175  0  0   -34 56 23   20 39  6.9    65   280    27  -35 14 38  -34 38  8  -35 18 20  -34 34 27   0.12
    176  0  0   -34 52 16   20 39 11.0    64   279    28  -35 10 32  -34 34  0  -35 14 13  -34 30 19   0.12
    177  0  0   -34 47 43   20 39 15.0    63   278    29  -35  6  0  -34 29 26  -35  9 41  -34 25 45   0.12
    178  0  0   -34 42 44   20 39 19.0    63   277    29  -35  1  2  -34 24 26  -35  4 44  -34 20 45   0.12
    179  0  0   -34 37 20   20 39 22.9    62   276    30  -34 55 39  -34 19  1  -34 59 21  -34 15 19   0.12
Uncertainty in time = +/- 2 secs
Prediction of 2022 Jan 31.2

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