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Updated: 2022 Apr 15, 20:02 UT
Event Rank : 67
(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.
On 2022 Jun 08 UT, the 65 km diameter asteroid (599) Luisa will occult a 11.8 mag star in the constellation Microscopium for observers along a somewhat uncertain path that may graze the western coast of Western Australia from Exmouth to Shark Bay.
In the case of an occultation, the combined light of the asteroid and the star will drop by 0.9 mag to 12.18 mag (the magnitude of the asteroid) for at most 7.2 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, in particular 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 :Important Note regarding Accuracy:
The uncertainty interval in path widths given above (and shown as a 1-sigma uncertainty ellipse on the plot) refers to RMS deviation and is applied as a +/- range. In other words, a path uncertainty of 1.0 path widths means that the actual center of the asteroid's shadow path should fall within plus or minus 1 path width of the plotted path center. However path errors larger than 1 sigma have been observed so observers should be alert for primary occultations within plus or minus 3 sigma of the updated path.
Further, almost all asteroidal satellites discovered so far have been found within 10 diameters of the asteroid (since this distance is deep enough within the gravitational well to be stable over long timescales). Therefore, if monitoring for secondary events, observing out to about 10 path-widths either side of the predicted track remains worthwhile.
We therefore recommend that you monitor for events if your observing location is up to +/- 10 path-widths from the predicted track. If not monitoring for occultations by secondary bodies you should observe from locations within 3 sigma of the nominal path.
In terms of time, the predictions are now usually accurate to about +/- 0.3 minute so you should be most attentive during the predicted minute of the event. However if intending to catch a potential satellite occultation you should start observing at least 10 times the predicted central duration before the predicted closest approach time for your location, and continue for a similar period afterwards.
Occultation of TYC 7958-00505-1 by 599 Luisa on 2022 Jun 8
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
112 2 41 -18 8 37 17 27 14.7 49 135 -76 112 24 8 -18 11 30 111 41 10 -18 5 38 113 1 55 -18 16 19 111 2 56 -18 0 3 0.55
112 4 57 -18 33 9 17 27 19.0 50 135 -76 112 26 26 -18 36 0 111 43 24 -18 30 11 113 4 16 -18 40 46 111 5 8 -18 24 39 0.55
112 7 7 -18 57 34 17 27 23.3 50 134 -76 112 28 37 -19 0 23 111 45 33 -18 54 38 113 6 31 -19 5 6 111 7 13 -18 49 9 0.55
112 9 12 -19 21 52 17 27 27.6 50 134 -76 112 30 44 -19 24 40 111 47 36 -19 18 58 113 8 40 -19 29 20 111 9 13 -19 13 33 0.55
112 11 10 -19 46 5 17 27 31.9 50 134 -76 112 32 44 -19 48 51 111 49 33 -19 43 12 113 10 44 -19 53 28 111 11 7 -19 37 50 0.55
112 13 4 -20 10 11 17 27 36.2 51 133 -76 112 34 40 -20 12 56 111 51 24 -20 7 20 113 12 43 -20 17 30 111 12 55 -20 2 1 0.55
112 14 51 -20 34 12 17 27 40.5 51 133 -76 112 36 30 -20 36 55 111 53 10 -20 31 23 113 14 37 -20 41 27 111 14 37 -20 26 6 0.55
112 16 34 -20 58 7 17 27 44.8 51 133 -76 112 38 14 -21 0 49 111 54 50 -20 55 19 113 16 25 -21 5 18 111 16 13 -20 50 5 0.55
112 18 11 -21 21 57 17 27 49.1 52 132 -76 112 39 53 -21 24 37 111 56 24 -21 19 10 113 18 9 -21 29 3 111 17 44 -21 13 59 0.55
112 19 42 -21 45 41 17 27 53.5 52 132 -76 112 41 27 -21 48 19 111 57 54 -21 42 56 113 19 47 -21 52 44 111 19 9 -21 37 47 0.55
112 21 8 -22 9 20 17 27 57.8 52 132 -76 112 42 56 -22 11 57 111 59 17 -22 6 36 113 21 20 -22 16 19 111 20 29 -22 1 29 0.55
112 22 29 -22 32 53 17 28 2.1 53 131 -76 112 44 19 -22 35 29 112 0 36 -22 30 11 113 22 48 -22 39 49 111 21 43 -22 25 7 0.55
112 23 45 -22 56 22 17 28 6.4 53 131 -76 112 45 38 -22 58 57 112 1 49 -22 53 41 113 24 11 -23 3 14 111 22 51 -22 48 39 0.55
112 24 56 -23 19 46 17 28 10.7 53 131 -76 112 46 51 -23 22 19 112 2 57 -23 17 6 113 25 30 -23 26 35 111 23 55 -23 12 6 0.55
112 26 1 -23 43 5 17 28 15.0 53 130 -76 112 48 0 -23 45 37 112 4 0 -23 40 26 113 26 43 -23 49 51 111 24 52 -23 35 29 0.55
112 27 2 -24 6 19 17 28 19.3 54 130 -76 112 49 3 -24 8 51 112 4 57 -24 3 42 113 27 52 -24 13 2 111 25 45 -23 58 46 0.55
112 27 57 -24 29 29 17 28 23.6 54 129 -76 112 50 1 -24 31 59 112 5 50 -24 26 53 113 28 55 -24 36 9 111 26 32 -24 21 59 0.55
112 28 47 -24 52 35 17 28 27.9 54 129 -76 112 50 55 -24 55 4 112 6 37 -24 49 59 113 29 54 -24 59 12 111 27 14 -24 45 8 0.54
112 29 33 -25 15 36 17 28 32.2 54 129 -76 112 51 43 -25 18 4 112 7 19 -25 13 1 113 30 49 -25 22 10 111 27 50 -25 8 12 0.54
112 30 13 -25 38 33 17 28 36.5 55 128 -76 112 52 27 -25 41 0 112 7 56 -25 35 59 113 31 38 -25 45 5 111 28 21 -25 31 11 0.54
112 30 48 -26 1 26 17 28 40.8 55 128 -76 112 53 6 -26 3 52 112 8 28 -25 58 53 113 32 23 -26 7 55 111 28 47 -25 54 7 0.54
112 31 19 -26 24 15 17 28 45.1 55 127 -76 112 53 39 -26 26 40 112 8 55 -26 21 43 113 33 3 -26 30 42 111 29 8 -26 16 58 0.54
112 31 44 -26 47 0 17 28 49.5 55 127 -76 112 54 8 -26 49 24 112 9 16 -26 44 29 113 33 38 -26 53 24 111 29 24 -26 39 46 0.54
112 32 5 -27 9 41 17 28 53.8 56 127 -76 112 54 32 -27 12 5 112 9 33 -27 7 11 113 34 9 -27 16 3 111 29 34 -27 2 29 0.54
112 32 20 -27 32 19 17 28 58.1 56 126 -76 112 54 52 -27 34 42 112 9 45 -27 29 49 113 34 35 -27 38 39 111 29 39 -27 25 9 0.54
112 32 31 -27 54 53 17 29 2.4 56 126 -75 112 55 6 -27 57 15 112 9 52 -27 52 24 113 34 56 -28 1 11 111 29 39 -27 47 45 0.54
112 32 36 -28 17 23 17 29 6.7 56 125 -75 112 55 16 -28 19 44 112 9 53 -28 14 55 113 35 13 -28 23 39 111 29 34 -28 10 17 0.54
112 32 37 -28 39 50 17 29 11.0 57 125 -75 112 55 21 -28 42 11 112 9 50 -28 37 23 113 35 25 -28 46 4 111 29 24 -28 32 46 0.54
112 32 33 -29 2 13 17 29 15.3 57 124 -75 112 55 21 -29 4 34 112 9 42 -28 59 47 113 35 32 -29 8 26 111 29 8 -28 55 11 -0.54
112 32 24 -29 24 34 17 29 19.6 57 124 -75 112 55 16 -29 26 53 112 9 28 -29 22 8 113 35 35 -29 30 45 111 28 47 -29 17 33 -0.54
112 32 10 -29 46 51 17 29 23.9 57 123 -75 112 55 6 -29 49 10 112 9 10 -29 44 25 113 35 33 -29 53 0 111 28 21 -29 39 52 -0.54
112 31 51 -30 9 5 17 29 28.2 57 123 -75 112 54 51 -30 11 24 112 8 47 -30 6 40 113 35 26 -30 15 13 111 27 50 -30 2 8 -0.54
112 31 27 -30 31 16 17 29 32.5 58 122 -74 112 54 32 -30 33 34 112 8 18 -30 28 52 113 35 15 -30 37 23 111 27 14 -30 24 20 -0.54
112 30 58 -30 53 24 17 29 36.8 58 122 -74 112 54 8 -30 55 42 112 7 44 -30 51 0 113 34 59 -30 59 29 111 26 32 -30 46 29 -0.54
112 30 24 -31 15 29 17 29 41.1 58 121 -74 112 53 38 -31 17 46 112 7 6 -31 13 6 113 34 38 -31 21 33 111 25 45 -31 8 36 -0.54
112 29 45 -31 37 32 17 29 45.4 58 121 -74 112 53 4 -31 39 48 112 6 22 -31 35 9 113 34 12 -31 43 34 111 24 52 -31 30 39 -0.54
112 29 0 -31 59 31 17 29 49.8 58 120 -74 112 52 25 -32 1 48 112 5 33 -31 57 9 113 33 42 -32 5 33 111 23 55 -31 52 40 -0.54
112 28 11 -32 21 28 17 29 54.1 59 120 -74 112 51 41 -32 23 44 112 4 39 -32 19 6 113 33 7 -32 27 29 111 22 52 -32 14 38 -0.54
112 27 17 -32 43 23 17 29 58.4 59 119 -73 112 50 52 -32 45 38 112 3 39 -32 41 1 113 32 27 -32 49 23 111 21 43 -32 36 33 -0.54
112 26 18 -33 5 15 17 30 2.7 59 119 -73 112 49 58 -33 7 30 112 2 35 -33 2 53 113 31 42 -33 11 14 111 20 29 -32 58 26 -0.54
112 25 13 -33 27 4 17 30 7.0 59 118 -73 112 48 58 -33 29 19 112 1 25 -33 24 42 113 30 52 -33 33 2 111 19 10 -33 20 16 -0.54
112 24 3 -33 48 51 17 30 11.3 59 118 -73 112 47 54 -33 51 6 112 0 10 -33 46 30 113 29 58 -33 54 49 111 17 45 -33 42 4 -0.54
112 22 48 -34 10 36 17 30 15.6 59 117 -72 112 46 45 -34 12 50 111 58 49 -34 8 15 113 28 58 -34 16 33 111 16 15 -34 3 49 -0.54
112 21 28 -34 32 18 17 30 19.9 60 117 -72 112 45 30 -34 34 33 111 57 23 -34 29 57 113 27 54 -34 38 15 111 14 39 -34 25 32 -0.54
112 20 3 -34 53 59 17 30 24.2 60 116 -72 112 44 10 -34 56 13 111 55 52 -34 51 38 113 26 44 -34 59 55 111 12 57 -34 47 12 -0.54
112 18 32 -35 15 37 17 30 28.5 60 116 -72 112 42 45 -35 17 51 111 54 15 -35 13 16 113 25 30 -35 21 32 111 11 10 -35 8 51 -0.54
112 16 55 -35 37 13 17 30 32.8 60 115 -72 112 41 15 -35 39 27 111 52 32 -35 34 52 113 24 10 -35 43 8 111 9 17 -35 30 27 -0.54
112 15 13 -35 58 47 17 30 37.1 60 114 -71 112 39 39 -36 1 1 111 50 44 -35 56 26 113 22 45 -36 4 42 111 7 18 -35 52 1 -0.53
112 13 26 -36 20 19 17 30 41.4 60 114 -71 112 37 58 -36 22 33 111 48 51 -36 17 58 113 21 15 -36 26 14 111 5 14 -36 13 33 -0.53
112 11 33 -36 41 49 17 30 45.8 60 113 -71 112 36 12 -36 44 3 111 46 51 -36 39 28 113 19 40 -36 47 44 111 3 3 -36 35 3 -0.53
112 9 34 -37 3 17 17 30 50.1 61 113 -71 112 34 19 -37 5 31 111 44 46 -37 0 56 113 17 59 -37 9 13 111 0 46 -36 56 31 -0.53
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