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Updated: 2022 Oct 31, 00:52 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 Dec 25 UT, the 49 km diameter asteroid (312) Pierretta will occult a 12.0 mag star in the constellation Auriga for observers along a path across Tasmania, Victoria, South Australia and West Australia.
In the case of an occultation, the combined light of the asteroid and the star will drop by 1.9 mag to 13.61 mag (the magnitude of the asteroid) for at most 3.3 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 HIP 26554 by 312 Pierretta on 2022 Dec 25
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
144 13 25 -39 59 51 16 39 34.2 4 326 -19 ... .. .. .. .. .. 142 49 14 -38 8 16 ... .. .. .. .. .. 142 36 22 -37 50 8 1.35
143 4 27 -39 1 18 16 39 35.9 6 327 -21 144 58 20 -41 24 17 141 58 10 -37 28 2 145 45 31 -42 17 59 141 47 18 -37 11 56 1.60
142 8 1 -38 15 25 16 39 37.6 7 328 -22 143 27 54 -40 3 31 141 12 23 -36 53 5 143 50 1 -40 31 34 141 2 54 -36 38 24 1.68
141 18 43 -37 36 48 16 39 39.4 7 328 -22 142 22 45 -39 8 32 140 30 20 -36 21 57 142 38 44 -39 30 15 140 21 53 -36 8 20 1.73
140 34 12 -37 3 1 16 39 41.1 8 329 -23 141 28 28 -38 24 37 139 51 10 -35 53 43 141 41 20 -38 43 6 139 43 31 -35 40 56 1.76
139 53 9 -36 32 46 16 39 42.8 9 329 -24 140 40 36 -37 47 17 139 14 17 -35 27 47 140 51 31 -38 3 44 139 7 17 -35 15 41 1.77
139 14 47 -36 5 15 16 39 44.5 10 329 -25 139 57 9 -37 14 27 138 39 15 -35 3 46 140 6 42 -37 29 28 138 32 47 -34 52 14 1.79
138 38 33 -35 39 57 16 39 46.3 10 330 -25 139 16 56 -36 44 58 138 5 47 -34 41 22 139 25 28 -36 58 54 137 59 46 -34 30 18 1.80
138 4 5 -35 16 27 16 39 48.0 11 330 -26 138 39 15 -36 18 4 137 33 39 -34 20 19 138 46 58 -36 31 10 137 28 2 -34 9 40 1.81
137 31 7 -34 54 30 16 39 49.7 11 331 -26 138 3 36 -35 53 17 137 2 40 -34 0 28 138 10 40 -36 5 41 136 57 23 -33 50 10 1.81
136 59 25 -34 33 52 16 39 51.5 12 331 -27 137 29 38 -35 30 15 136 32 42 -33 41 40 137 36 10 -35 42 5 136 27 43 -33 31 42 1.82
136 28 49 -34 14 23 16 39 53.2 12 331 -27 136 57 5 -35 8 41 136 3 37 -33 23 48 137 3 10 -35 20 2 135 58 55 -33 14 7 1.82
135 59 12 -33 55 55 16 39 54.9 13 332 -28 136 25 46 -34 48 25 135 35 21 -33 6 47 136 31 27 -34 59 21 135 30 53 -32 57 21 1.83
135 30 26 -33 38 22 16 39 56.7 13 332 -28 135 55 31 -34 29 16 135 7 48 -32 50 32 136 0 51 -34 39 50 135 3 33 -32 41 19 1.83
135 2 27 -33 21 38 16 39 58.4 14 332 -29 135 26 12 -34 11 7 134 40 55 -32 34 57 135 31 14 -34 21 21 134 36 51 -32 25 57 1.83
134 35 10 -33 5 39 16 40 0.1 14 332 -29 134 57 43 -33 53 50 134 14 37 -32 20 2 135 2 30 -34 3 47 134 10 44 -32 11 13 1.83
134 8 31 -32 50 20 16 40 1.9 14 333 -29 134 30 0 -33 37 22 133 48 52 -32 5 41 134 34 32 -33 47 3 133 45 8 -31 57 2 1.84
133 42 26 -32 35 39 16 40 3.6 15 333 -30 134 2 57 -33 21 37 133 23 37 -31 51 53 134 7 16 -33 31 5 133 20 2 -31 43 24 1.84
133 16 54 -32 21 32 16 40 5.3 15 333 -30 133 36 31 -33 6 33 132 58 50 -31 38 35 133 40 38 -33 15 47 132 55 24 -31 30 14 1.84
132 51 50 -32 7 56 16 40 7.0 16 334 -30 133 10 38 -32 52 4 132 34 29 -31 25 45 133 14 35 -33 1 7 132 31 10 -31 17 33 1.84
132 27 14 -31 54 51 16 40 8.8 16 334 -31 132 45 17 -32 38 10 132 10 31 -31 13 21 132 49 3 -32 47 2 132 7 20 -31 5 17 1.84
132 3 3 -31 42 13 16 40 10.5 16 334 -31 132 20 24 -32 24 47 131 46 57 -31 1 23 132 24 1 -32 33 29 131 43 52 -30 53 26 1.84
131 39 15 -31 30 1 16 40 12.2 17 334 -31 131 55 58 -32 11 53 131 23 43 -30 49 47 131 59 27 -32 20 26 131 20 45 -30 41 57 1.84
131 15 50 -31 18 14 16 40 14.0 17 335 -32 131 31 56 -31 59 26 131 0 49 -30 38 34 131 35 17 -32 7 51 130 57 57 -30 30 50 1.84
130 52 44 -31 6 49 16 40 15.7 17 335 -32 131 8 17 -31 47 25 130 38 13 -30 27 42 131 11 31 -31 55 42 130 35 27 -30 20 4 1.85
130 29 58 -30 55 47 16 40 17.4 18 335 -32 130 44 59 -31 35 48 130 15 55 -30 17 10 130 48 6 -31 43 58 130 13 14 -30 9 37 1.85
130 7 30 -30 45 5 16 40 19.2 18 335 -33 130 22 2 -31 24 34 129 53 54 -30 6 56 130 25 2 -31 32 36 129 51 17 -29 59 29 1.85
129 45 19 -30 34 42 16 40 20.9 18 336 -33 129 59 23 -31 13 41 129 32 8 -29 57 0 130 2 18 -31 21 37 129 29 36 -29 49 38 1.85
129 23 24 -30 24 38 16 40 22.6 18 336 -33 129 37 2 -31 3 9 129 10 36 -29 47 22 129 39 51 -31 10 59 129 8 9 -29 40 5 1.85
129 1 45 -30 14 52 16 40 24.3 19 336 -33 129 14 57 -30 52 56 128 49 19 -29 38 0 129 17 41 -31 0 40 128 46 56 -29 30 47 1.85
128 40 20 -30 5 23 16 40 26.1 19 336 -34 128 53 9 -30 43 1 128 28 15 -29 28 54 128 55 48 -30 50 40 128 25 56 -29 21 45 1.85
128 19 8 -29 56 10 16 40 27.8 19 337 -34 128 31 35 -30 33 24 128 7 24 -29 20 3 128 34 9 -30 40 57 128 5 8 -29 12 58 1.85
127 58 10 -29 47 13 16 40 29.5 19 337 -34 128 10 15 -30 24 4 127 46 45 -29 11 26 128 12 45 -30 31 32 127 44 33 -29 4 26 1.85
127 37 24 -29 38 30 16 40 31.3 20 337 -34 127 49 9 -30 14 59 127 26 17 -29 3 3 127 51 35 -30 22 23 127 24 8 -28 56 6 1.85
127 16 50 -29 30 2 16 40 33.0 20 337 -35 127 28 16 -30 6 11 127 6 0 -28 54 54 127 30 37 -30 13 30 127 3 55 -28 48 1 1.85
126 56 27 -29 21 48 16 40 34.7 20 338 -35 127 7 35 -29 57 37 126 45 54 -28 46 58 127 9 52 -30 4 52 126 43 52 -28 40 8 1.85
126 36 15 -29 13 47 16 40 36.5 20 338 -35 126 47 5 -29 49 17 126 25 58 -28 39 14 126 49 19 -29 56 28 126 23 59 -28 32 27 1.85
126 16 13 -29 5 59 16 40 38.2 21 338 -35 126 26 47 -29 41 11 126 6 11 -28 31 42 126 28 57 -29 48 19 126 4 15 -28 24 59 1.85
125 56 21 -28 58 23 16 40 39.9 21 338 -36 126 6 39 -29 33 18 125 46 34 -28 24 22 126 8 46 -29 40 22 125 44 41 -28 17 42 1.85
125 36 38 -28 51 0 16 40 41.7 21 339 -36 125 46 41 -29 25 38 125 27 5 -28 17 14 125 48 44 -29 32 39 125 25 15 -28 10 36 1.85
125 17 5 -28 43 48 16 40 43.4 21 339 -36 125 26 52 -29 18 10 125 7 46 -28 10 16 125 28 53 -29 25 8 125 5 57 -28 3 41 1.85
124 57 40 -28 36 47 16 40 45.1 21 339 -36 125 7 13 -29 10 55 124 48 34 -28 3 29 125 9 11 -29 17 49 124 46 48 -27 56 57 1.85
124 38 23 -28 29 57 16 40 46.8 22 339 -36 124 47 43 -29 3 50 124 29 30 -27 56 53 124 49 38 -29 10 41 124 27 47 -27 50 23 1.85
124 19 15 -28 23 18 16 40 48.6 22 340 -37 124 28 22 -28 56 57 124 10 33 -27 50 26 124 30 14 -29 3 45 124 8 52 -27 43 59 1.85
124 0 14 -28 16 49 16 40 50.3 22 340 -37 124 9 8 -28 50 15 123 51 44 -27 44 10 124 10 58 -28 57 0 123 50 6 -27 37 44 1.85
123 41 21 -28 10 30 16 40 52.0 22 340 -37 123 50 3 -28 43 43 123 33 2 -27 38 3 123 51 50 -28 50 26 123 31 26 -27 31 40 1.85
123 22 34 -28 4 21 16 40 53.8 22 340 -37 123 31 5 -28 37 22 123 14 27 -27 32 5 123 32 49 -28 44 2 123 12 52 -27 25 44 1.85
123 3 55 -27 58 22 16 40 55.5 23 341 -37 123 12 14 -28 31 11 122 55 58 -27 26 16 123 13 56 -28 37 48 122 54 26 -27 19 58 1.85
122 45 22 -27 52 32 16 40 57.2 23 341 -37 122 53 30 -28 25 9 122 37 36 -27 20 36 122 55 10 -28 31 44 122 36 5 -27 14 20 1.85
122 26 56 -27 46 50 16 40 59.0 23 341 -38 122 34 53 -28 19 17 122 19 19 -27 15 5 122 36 31 -28 25 50 122 17 50 -27 8 51 1.85
122 8 36 -27 41 18 16 41 0.7 23 341 -38 122 16 23 -28 13 34 122 1 8 -27 9 43 122 17 59 -28 20 5 121 59 42 -27 3 30 1.85
121 50 21 -27 35 54 16 41 2.4 23 341 -38 121 57 59 -28 8 0 121 43 3 -27 4 28 121 59 32 -28 14 29 121 41 38 -26 58 17 1.85
121 32 13 -27 30 39 16 41 4.2 23 342 -38 121 39 41 -28 2 35 121 25 4 -26 59 22 121 41 12 -28 9 2 121 23 41 -26 53 13 1.85
121 14 10 -27 25 32 16 41 5.9 24 342 -38 121 21 28 -27 57 19 121 7 10 -26 54 24 121 22 58 -28 3 43 121 5 48 -26 48 16 1.85
120 56 12 -27 20 33 16 41 7.6 24 342 -38 121 3 22 -27 52 10 120 49 21 -26 49 33 121 4 50 -27 58 33 120 48 1 -26 43 27 1.85
120 38 20 -27 15 42 16 41 9.3 24 342 -38 120 45 21 -27 47 11 120 31 36 -26 44 50 120 46 46 -27 53 32 120 30 18 -26 38 46 1.85
120 20 32 -27 10 58 16 41 11.1 24 343 -39 120 27 25 -27 42 19 120 13 57 -26 40 15 120 28 49 -27 48 38 120 12 40 -26 34 12 1.85
120 2 50 -27 6 23 16 41 12.8 24 343 -39 120 9 34 -27 37 35 119 56 22 -26 35 47 120 10 56 -27 43 52 119 55 7 -26 29 45 1.85
119 45 12 -27 1 54 16 41 14.5 24 343 -39 119 51 48 -27 32 59 119 38 52 -26 31 26 119 53 8 -27 39 15 119 37 38 -26 25 26 1.85
119 27 39 -26 57 34 16 41 16.3 25 343 -39 119 34 6 -27 28 30 119 21 26 -26 27 12 119 35 26 -27 34 44 119 20 14 -26 21 14 1.85
119 10 10 -26 53 20 16 41 18.0 25 344 -39 119 16 30 -27 24 9 119 4 4 -26 23 5 119 17 47 -27 30 22 119 2 53 -26 17 8 1.85
118 52 45 -26 49 13 16 41 19.7 25 344 -39 118 58 58 -27 19 55 118 46 47 -26 19 5 119 0 14 -27 26 7 118 45 37 -26 13 9 1.85
118 35 24 -26 45 13 16 41 21.5 25 344 -39 118 41 30 -27 15 49 118 29 33 -26 15 12 118 42 44 -27 21 59 118 28 25 -26 9 17 1.85
118 18 8 -26 41 21 16 41 23.2 25 344 -39 118 24 6 -27 11 49 118 12 23 -26 11 25 118 25 19 -27 17 58 118 11 16 -26 5 32 1.85
118 0 55 -26 37 34 16 41 24.9 25 344 -39 118 6 46 -27 7 57 117 55 17 -26 7 45 118 7 58 -27 14 4 117 54 11 -26 1 53 1.85
117 43 46 -26 33 55 16 41 26.6 25 345 -40 117 49 30 -27 4 11 117 38 14 -26 4 12 117 50 41 -27 10 17 117 37 10 -25 58 20 1.85
117 26 40 -26 30 22 16 41 28.4 25 345 -40 117 32 18 -27 0 32 117 21 15 -26 0 44 117 33 27 -27 6 37 117 20 12 -25 54 54 1.85
117 9 39 -26 26 55 16 41 30.1 26 345 -40 117 15 10 -26 57 0 117 4 19 -25 57 23 117 16 18 -27 3 3 117 3 17 -25 51 34 1.85
116 52 40 -26 23 35 16 41 31.8 26 345 -40 116 58 5 -26 53 34 116 47 27 -25 54 8 116 59 11 -26 59 36 116 46 26 -25 48 20 1.85
116 35 45 -26 20 21 16 41 33.6 26 346 -40 116 41 4 -26 50 14 116 30 37 -25 50 59 116 42 9 -26 56 15 116 29 38 -25 45 12 1.85
116 18 53 -26 17 13 16 41 35.3 26 346 -40 116 24 6 -26 47 1 116 13 51 -25 47 56 116 25 9 -26 53 1 116 12 52 -25 42 10 1.85
116 2 4 -26 14 11 16 41 37.0 26 346 -40 116 7 11 -26 43 54 115 57 8 -25 44 59 116 8 13 -26 49 53 115 56 10 -25 39 13 1.85
115 45 18 -26 11 15 16 41 38.8 26 346 -40 115 50 19 -26 40 54 115 40 27 -25 42 8 115 51 20 -26 46 52 115 39 31 -25 36 23 1.85
115 28 35 -26 8 26 16 41 40.5 26 347 -40 115 33 30 -26 37 59 115 23 50 -25 39 22 115 34 30 -26 43 56 115 22 54 -25 33 38 1.85
115 11 55 -26 5 42 16 41 42.2 26 347 -40 115 16 44 -26 35 10 115 7 15 -25 36 42 115 17 43 -26 41 7 115 6 20 -25 30 59 1.85
114 55 17 -26 3 3 16 41 44.0 26 347 -40 115 0 1 -26 32 28 114 50 43 -25 34 8 115 0 59 -26 38 23 114 49 49 -25 28 26 1.85
114 38 42 -26 0 31 16 41 45.7 27 347 -40 114 43 21 -26 29 51 114 34 13 -25 31 40 114 44 18 -26 35 45 114 33 20 -25 25 58 1.85
114 22 10 -25 58 4 16 41 47.4 27 347 -41 114 26 43 -26 27 20 114 17 46 -25 29 17 114 27 39 -26 33 14 114 16 54 -25 23 36 1.85
114 5 40 -25 55 43 16 41 49.1 27 348 -41 114 10 8 -26 24 55 114 1 21 -25 26 59 114 11 3 -26 30 48 114 0 30 -25 21 19 1.85
113 49 12 -25 53 27 16 41 50.9 27 348 -41 113 53 36 -26 22 35 113 44 58 -25 24 47 113 54 29 -26 28 27 113 44 8 -25 19 8 1.85
113 32 47 -25 51 17 16 41 52.6 27 348 -41 113 37 6 -26 20 22 113 28 38 -25 22 40 113 37 58 -26 26 13 113 27 49 -25 17 1 1.85
113 16 24 -25 49 12 16 41 54.3 27 348 -41 113 20 38 -26 18 13 113 12 19 -25 20 39 113 21 29 -26 24 4 113 11 31 -25 15 1 1.85
113 0 3 -25 47 12 16 41 56.1 27 349 -41 113 4 12 -26 16 10 112 56 3 -25 18 42 113 5 3 -26 22 0 112 55 16 -25 13 5 1.85
112 43 45 -25 45 18 16 41 57.8 27 349 -41 112 47 49 -26 14 13 112 39 49 -25 16 51 112 48 38 -26 20 2 112 39 3 -25 11 14 1.85
112 27 28 -25 43 29 16 41 59.5 27 349 -41 112 31 27 -26 12 21 112 23 37 -25 15 5 112 32 16 -26 18 9 112 22 52 -25 9 29 1.85
112 11 13 -25 41 46 16 42 1.3 27 349 -41 112 15 8 -26 10 34 112 7 27 -25 13 25 112 15 55 -26 16 22 112 6 42 -25 7 49 1.85
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