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Updated: 2022 FEB 14, 19:26 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.
On 2022 Mar 20 UT, the 138 km diameter asteroid (145) Adeona will occult a 11.6 mag star in the constellation Taurus for observers along a path across Australia from Shark Bay across central Western Australia in evening twilight across northern South Australia and into northern New South Wales at low elevation.
In the case of an occultation, the combined light of the asteroid and the star will drop by 1.76 mag to 13.15 mag (the magnitude of the asteroid) for at most 4.770 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 :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 UCAC4 572-011005 by 145 Adeona on 2022 Mar 20
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
110 13 23 -26 13 21 10 51 1.7 34 332 -1 109 46 49 -25 12 31 110 41 26 -27 15 46 109 43 56 -25 5 49 110 44 40 -27 22 51 1.40
110 31 59 -26 10 54 10 51 2.7 34 331 -1 110 5 13 -25 10 1 111 0 16 -27 13 22 110 2 19 -25 3 20 111 3 32 -27 20 27 1.40
110 50 39 -26 8 32 10 51 3.8 34 331 -2 110 23 40 -25 7 37 111 19 10 -27 11 3 110 20 44 -25 0 54 111 22 27 -27 18 8 1.40
111 9 22 -26 6 14 10 51 4.9 34 331 -2 110 42 10 -25 5 16 111 38 7 -27 8 48 110 39 13 -24 58 33 111 41 26 -27 15 54 1.40
111 28 9 -26 4 0 10 51 5.9 33 331 -2 111 0 43 -25 2 59 111 57 8 -27 6 38 110 57 45 -24 56 16 112 0 28 -27 13 44 1.40
111 46 59 -26 1 51 10 51 7.0 33 330 -2 111 19 20 -25 0 47 112 16 13 -27 4 32 111 16 21 -24 54 4 112 19 35 -27 11 39 1.40
112 5 53 -25 59 46 10 51 8.0 33 330 -3 111 38 1 -24 58 39 112 35 22 -27 2 31 111 35 0 -24 51 55 112 38 46 -27 9 38 1.40
112 24 51 -25 57 46 10 51 9.1 33 330 -3 111 56 45 -24 56 35 112 54 35 -27 0 35 111 53 42 -24 49 51 112 58 0 -27 7 42 1.40
112 43 52 -25 55 50 10 51 10.1 33 329 -3 112 15 32 -24 54 36 113 13 52 -26 58 44 112 12 29 -24 47 51 113 17 19 -27 5 51 1.40
113 2 58 -25 53 59 10 51 11.2 33 329 -4 112 34 24 -24 52 41 113 33 13 -26 56 57 112 31 19 -24 45 56 113 36 43 -27 4 5 1.40
113 22 8 -25 52 12 10 51 12.2 33 329 -4 112 53 19 -24 50 50 113 52 39 -26 55 15 112 50 12 -24 44 5 113 56 11 -27 2 24 1.40
113 41 22 -25 50 30 10 51 13.3 33 328 -4 113 12 19 -24 49 4 114 12 10 -26 53 38 113 9 10 -24 42 18 114 15 43 -27 0 47 1.40
114 0 41 -25 48 53 10 51 14.3 32 328 -4 113 31 22 -24 47 22 114 31 45 -26 52 6 113 28 12 -24 40 36 114 35 21 -26 59 15 1.40
114 20 4 -25 47 20 10 51 15.4 32 328 -5 113 50 30 -24 45 45 114 51 26 -26 50 38 113 47 18 -24 38 58 114 55 3 -26 57 49 1.40
114 39 32 -25 45 53 10 51 16.4 32 327 -5 114 9 42 -24 44 12 115 11 11 -26 49 16 114 6 29 -24 37 25 115 14 50 -26 56 27 1.40
114 59 5 -25 44 30 10 51 17.5 32 327 -5 114 28 59 -24 42 44 115 31 2 -26 47 59 114 25 44 -24 35 56 115 34 43 -26 55 11 1.40
115 18 42 -25 43 12 10 51 18.5 32 327 -6 114 48 20 -24 41 20 115 50 57 -26 46 47 114 45 4 -24 34 32 115 54 41 -26 54 0 1.40
115 38 25 -25 41 59 10 51 19.6 32 327 -6 115 7 47 -24 40 2 116 10 59 -26 45 41 115 4 28 -24 33 13 116 14 45 -26 52 54 1.40
115 58 13 -25 40 51 10 51 20.6 32 326 -6 115 27 18 -24 38 48 116 31 6 -26 44 39 115 23 57 -24 31 59 116 34 54 -26 51 53 1.40
116 18 7 -25 39 48 10 51 21.7 31 326 -7 115 46 54 -24 37 39 116 51 19 -26 43 43 115 43 31 -24 30 49 116 55 9 -26 50 58 1.40
116 38 6 -25 38 50 10 51 22.7 31 326 -7 116 6 35 -24 36 34 117 11 38 -26 42 53 116 3 11 -24 29 44 117 15 30 -26 50 8 1.40
116 58 10 -25 37 57 10 51 23.8 31 325 -7 116 26 21 -24 35 35 117 32 3 -26 42 7 116 22 55 -24 28 44 117 35 58 -26 49 24 1.40
117 18 21 -25 37 10 10 51 24.8 31 325 -7 116 46 13 -24 34 41 117 52 35 -26 41 28 116 42 45 -24 27 49 117 56 32 -26 48 46 1.40
117 38 38 -25 36 28 10 51 25.9 31 325 -8 117 6 11 -24 33 52 118 13 13 -26 40 54 117 2 41 -24 26 59 118 17 13 -26 48 13 1.40
117 59 1 -25 35 51 10 51 27.0 31 324 -8 117 26 14 -24 33 7 118 33 58 -26 40 26 117 22 42 -24 26 14 118 38 1 -26 47 46 1.40
118 19 30 -25 35 20 10 51 28.0 30 324 -8 117 46 24 -24 32 29 118 54 50 -26 40 4 117 42 50 -24 25 34 118 58 55 -26 47 25 1.40
118 40 6 -25 34 54 10 51 29.1 30 324 -9 118 6 39 -24 31 55 119 15 49 -26 39 47 118 3 3 -24 25 0 119 19 57 -26 47 9 1.40
119 0 49 -25 34 34 10 51 30.1 30 323 -9 118 27 1 -24 31 27 119 36 56 -26 39 37 118 23 23 -24 24 31 119 41 7 -26 47 0 1.40
119 21 40 -25 34 20 10 51 31.2 30 323 -9 118 47 30 -24 31 4 119 58 10 -26 39 33 118 43 49 -24 24 7 120 2 25 -26 46 58 1.40
119 42 37 -25 34 12 10 51 32.2 30 323 -10 119 8 5 -24 30 47 120 19 33 -26 39 35 119 4 22 -24 23 49 120 23 50 -26 47 1 1.40
120 3 42 -25 34 10 10 51 33.3 30 323 -10 119 28 47 -24 30 35 120 41 4 -26 39 44 119 25 2 -24 23 36 120 45 24 -26 47 11 1.40
120 24 54 -25 34 14 10 51 34.3 29 322 -10 119 49 36 -24 30 29 121 2 43 -26 39 59 119 45 48 -24 23 29 121 7 6 -26 47 27 1.40
120 46 15 -25 34 24 10 51 35.4 29 322 -11 120 10 33 -24 30 29 121 24 31 -26 40 21 120 6 42 -24 23 28 121 28 58 -26 47 51 1.40
121 7 44 -25 34 40 10 51 36.4 29 322 -11 120 31 37 -24 30 35 121 46 28 -26 40 50 120 27 44 -24 23 33 121 50 58 -26 48 21 1.40
121 29 21 -25 35 3 10 51 37.5 29 321 -11 120 52 49 -24 30 47 122 8 35 -26 41 25 120 48 53 -24 23 44 122 13 8 -26 48 58 1.40
121 51 8 -25 35 32 10 51 38.5 29 321 -12 121 14 9 -24 31 5 122 30 51 -26 42 8 121 10 11 -24 24 0 122 35 28 -26 49 42 1.40
122 13 3 -25 36 9 10 51 39.6 28 321 -12 121 35 37 -24 31 29 122 53 18 -26 42 58 121 31 36 -24 24 23 122 57 58 -26 50 34 1.40
122 35 8 -25 36 51 10 51 40.6 28 320 -12 121 57 14 -24 32 0 123 15 54 -26 43 55 121 53 10 -24 24 53 123 20 39 -26 51 33 1.40
122 57 23 -25 37 41 10 51 41.7 28 320 -13 122 19 0 -24 32 37 123 38 42 -26 45 0 122 14 53 -24 25 29 123 43 31 -26 52 39 1.40
123 19 47 -25 38 39 10 51 42.7 28 320 -13 122 40 55 -24 33 20 124 1 41 -26 46 12 122 36 45 -24 26 11 124 6 34 -26 53 54 1.40
123 42 23 -25 39 43 10 51 43.8 27 320 -13 123 3 0 -24 34 11 124 24 52 -26 47 33 122 58 46 -24 27 0 124 29 49 -26 55 17 1.40
124 5 9 -25 40 55 10 51 44.8 27 319 -14 123 25 14 -24 35 8 124 48 15 -26 49 2 123 20 58 -24 27 56 124 53 16 -26 56 47 1.40
124 28 6 -25 42 15 10 51 45.9 27 319 -14 123 47 39 -24 36 13 125 11 50 -26 50 39 123 43 19 -24 28 59 125 16 56 -26 58 27 1.40
124 51 15 -25 43 42 10 51 46.9 27 319 -14 124 10 14 -24 37 25 125 35 39 -26 52 25 124 5 50 -24 30 10 125 40 50 -27 0 15 1.40
125 14 36 -25 45 18 10 51 48.0 26 318 -15 124 33 0 -24 38 44 125 59 41 -26 54 20 124 28 32 -24 31 27 126 4 57 -27 2 13 1.40
125 38 10 -25 47 2 10 51 49.0 26 318 -15 124 55 57 -24 40 11 126 23 57 -26 56 24 124 51 26 -24 32 53 126 29 19 -27 4 19 1.40
126 1 57 -25 48 55 10 51 50.1 26 318 -15 125 19 6 -24 41 46 126 48 28 -26 58 38 125 14 31 -24 34 26 126 53 55 -27 6 35 1.40
126 25 57 -25 50 56 10 51 51.2 26 318 -16 125 42 27 -24 43 29 127 13 15 -27 1 2 125 37 48 -24 36 7 127 18 48 -27 9 2 1.40
126 50 12 -25 53 7 10 51 52.2 25 317 -16 126 6 1 -24 45 20 127 38 18 -27 3 35 126 1 18 -24 37 56 127 43 56 -27 11 38 1.40
127 14 41 -25 55 27 10 51 53.3 25 317 -16 126 29 47 -24 47 20 128 3 38 -27 6 19 126 25 0 -24 39 54 128 9 22 -27 14 25 1.40
127 39 26 -25 57 57 10 51 54.3 25 317 -17 126 53 48 -24 49 29 128 29 15 -27 9 14 126 48 56 -24 42 0 128 35 6 -27 17 23 1.40
128 4 27 -26 0 36 10 51 55.4 24 316 -17 127 18 3 -24 51 46 128 55 11 -27 12 21 127 13 6 -24 44 15 129 1 9 -27 20 33 1.40
128 29 45 -26 3 26 10 51 56.4 24 316 -18 127 42 32 -24 54 13 129 21 26 -27 15 39 127 37 31 -24 46 40 129 27 31 -27 23 55 1.40
128 55 20 -26 6 27 10 51 57.5 24 316 -18 128 7 17 -24 56 50 129 48 2 -27 19 9 128 2 11 -24 49 14 129 54 15 -27 27 29 1.40
129 21 14 -26 9 39 10 51 58.5 24 315 -18 128 32 18 -24 59 36 130 14 59 -27 22 52 128 27 7 -24 51 58 130 21 20 -27 31 16 1.40
129 47 27 -26 13 3 10 51 59.6 23 315 -19 128 57 36 -25 2 33 130 42 19 -27 26 49 128 52 19 -24 54 52 130 48 48 -27 35 16 1.40
130 14 0 -26 16 39 10 52 0.6 23 315 -19 129 23 12 -25 5 41 131 10 3 -27 30 59 129 17 49 -24 57 57 131 16 41 -27 39 31 1.40
130 40 55 -26 20 27 10 52 1.7 23 315 -19 129 49 6 -25 8 59 131 38 12 -27 35 24 129 43 37 -25 1 12 131 44 59 -27 44 0 1.40
131 8 12 -26 24 29 10 52 2.7 22 314 -20 130 15 19 -25 12 30 132 6 48 -27 40 4 130 9 44 -25 4 39 132 13 45 -27 48 45 1.40
131 35 53 -26 28 44 10 52 3.8 22 314 -20 130 41 53 -25 16 12 132 35 52 -27 45 0 130 36 11 -25 8 18 132 42 59 -27 53 47 1.40
132 4 0 -26 33 14 10 52 4.8 22 314 -21 131 8 48 -25 20 6 133 5 27 -27 50 14 131 2 59 -25 12 10 133 12 45 -27 59 6 1.40
132 32 32 -26 37 58 10 52 5.9 21 313 -21 131 36 6 -25 24 14 133 35 33 -27 55 45 131 30 9 -25 16 14 133 43 4 -28 4 43 1.40
133 1 33 -26 42 59 10 52 6.9 21 313 -21 132 3 47 -25 28 36 134 6 14 -28 1 35 131 57 42 -25 20 31 134 13 58 -28 10 40 1.40
133 31 4 -26 48 17 10 52 8.0 20 313 -22 132 31 53 -25 33 11 134 37 32 -28 7 46 132 25 40 -25 25 3 134 45 30 -28 16 57 1.40
134 1 6 -26 53 52 10 52 9.0 20 312 -22 133 0 26 -25 38 2 135 9 30 -28 14 18 132 54 4 -25 29 49 135 17 42 -28 23 37 1.40
134 31 43 -26 59 46 10 52 10.1 20 312 -23 133 29 27 -25 43 9 135 42 11 -28 21 14 133 22 56 -25 34 51 135 50 39 -28 30 41 1.41
135 2 56 -27 6 0 10 52 11.1 19 312 -23 133 58 58 -25 48 32 136 15 37 -28 28 34 133 52 16 -25 40 9 136 24 23 -28 38 10 1.41
135 34 48 -27 12 35 10 52 12.2 19 311 -24 134 29 0 -25 54 13 136 49 55 -28 36 22 134 22 8 -25 45 45 136 59 0 -28 46 7 1.41
136 7 23 -27 19 33 10 52 13.3 18 311 -24 134 59 37 -26 0 12 137 25 7 -28 44 38 134 52 34 -25 51 39 137 34 34 -28 54 34 1.41
136 40 43 -27 26 55 10 52 14.3 18 311 -24 135 30 50 -26 6 31 138 1 20 -28 53 27 135 23 34 -25 57 52 138 11 10 -29 3 34 1.41
137 14 53 -27 34 44 10 52 15.4 17 310 -25 136 2 42 -26 13 12 138 38 40 -29 2 50 135 55 13 -26 4 26 138 48 55 -29 13 10 1.41
137 49 57 -27 43 2 10 52 16.4 17 310 -25 136 35 16 -26 20 15 139 17 14 -29 12 52 136 27 33 -26 11 22 139 27 59 -29 23 26 1.41
138 26 0 -27 51 50 10 52 17.5 16 310 -26 137 8 35 -26 27 42 139 57 12 -29 23 37 137 0 37 -26 18 41 140 8 29 -29 34 27 1.41
139 3 9 -28 1 13 10 52 18.5 16 309 -26 137 42 44 -26 35 35 140 38 44 -29 35 10 137 34 29 -26 26 26 140 50 38 -29 46 19 1.41
139 41 31 -28 11 13 10 52 19.6 15 309 -27 138 17 46 -26 43 57 141 22 3 -29 47 38 138 9 13 -26 34 39 141 34 41 -29 59 8 1.41
140 21 14 -28 21 56 10 52 20.6 15 309 -27 138 53 48 -26 52 49 142 7 27 -30 1 8 138 44 55 -26 43 21 142 20 55 -30 13 4 1.41
141 2 29 -28 33 25 10 52 21.7 14 308 -28 139 30 55 -27 2 16 142 55 18 -30 15 53 139 21 39 -26 52 37 143 9 47 -30 28 18 1.41
141 45 28 -28 45 47 10 52 22.7 14 308 -28 140 9 13 -27 12 19 143 46 5 -30 32 6 139 59 33 -27 2 28 144 1 47 -30 45 7 1.41
142 30 28 -28 59 10 10 52 23.8 13 307 -29 140 48 53 -27 23 4 144 40 28 -30 50 5 140 38 44 -27 12 59 144 57 41 -31 3 52 1.42
143 17 49 -29 13 43 10 52 24.8 12 307 -30 141 30 3 -27 34 34 145 39 24 -31 10 20 141 19 23 -27 24 14 145 58 38 -31 25 5 1.42
144 7 58 -29 29 41 10 52 25.9 11 307 -30 142 12 56 -27 46 58 146 44 22 -31 33 33 142 1 40 -27 36 19 147 6 23 -31 49 39 1.42
145 1 33 -29 47 20 10 52 26.9 11 306 -31 142 57 48 -28 0 20 147 57 55 -32 0 57 142 45 51 -27 49 22 148 24 6 -32 19 5 1.43
145 59 25 -30 7 6 10 52 28.0 10 306 -32 143 44 59 -28 14 53 149 24 58 -32 34 55 143 32 13 -28 3 30 149 58 34 -32 56 39 1.43
147 2 55 -30 29 38 10 52 29.0 9 305 -32 144 34 55 -28 30 47 151 18 33 -33 21 43 144 21 10 -28 18 55 152 11 38 -33 52 51 1.45
148 14 13 -30 55 57 10 52 30.1 8 304 -33 145 28 12 -28 48 20 ... .. .. .. .. .. 145 13 14 -28 35 54 ... .. .. .. .. .. 1.46
149 37 24 -31 28 3 10 52 31.1 6 304 -34 146 25 39 -29 7 57 ... .. .. .. .. .. 146 9 11 -28 54 46 ... .. .. .. .. .. 1.50
151 22 13 -32 10 35 10 52 32.2 5 303 -35 147 28 33 -29 30 13 ... .. .. .. .. .. 147 10 3 -29 16 3 ... .. .. .. .. .. 1.58
154 14 18 -33 25 25 10 52 33.2 2 301 -37 148 38 55 -29 56 7 ... .. .. .. .. .. 148 17 36 -29 40 35 ... .. .. .. .. .. 2.18
Uncertainty in time = +/- 1 secs
Prediction of 2022 Feb 14.8
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