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Updated: 2021 Dec 31, 01:51 UT
Event Rank : 98
(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 Feb 22 UT, the 61 km diameter asteroid (1030) Vitja will occult a 11.7 mag star in the constellation Monoceros for observers along a path across north-western New South Wales, western Queensland and north-western Northern Territory.
In the case of an occultation, the combined light of the asteroid and the star will drop by 3.8 mag to 15.43 mag (the magnitude of the asteroid) for at most 8.0 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 0155-02815-1 by 1030 Vitja on 2022 Feb 22
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
172 0 19 -40 54 18 14 17 7.3 6 281 -35 170 8 48 -40 49 55 174 29 5 -41 1 50 168 58 32 -40 47 43 177 49 17 -41 14 59 -0.45
169 7 43 -40 13 42 14 17 12.2 8 283 -37 167 42 54 -40 11 33 170 45 28 -40 16 57 166 45 59 -40 10 28 172 10 54 -40 20 28 -0.60
155 57 38 -34 56 28 14 18 1.4 19 291 -45 155 18 17 -34 58 1 156 37 58 -34 55 1 154 49 46 -34 59 13 157 8 28 -34 54 0 -0.67
155 8 25 -34 28 6 14 18 6.3 20 291 -45 154 30 21 -34 29 45 155 47 22 -34 26 33 154 2 43 -34 31 1 156 16 46 -34 25 27 -0.67
154 21 45 -34 0 5 14 18 11.2 21 291 -46 153 44 50 -34 1 49 154 59 28 -33 58 27 153 18 0 -34 3 8 155 27 55 -33 57 17 -0.67
153 37 23 -33 32 24 14 18 16.1 22 292 -46 153 1 29 -33 34 12 154 14 0 -33 30 41 152 35 22 -33 35 34 154 41 35 -33 29 27 -0.67
152 55 5 -33 5 1 14 18 21.0 22 292 -47 152 20 6 -33 6 52 153 30 43 -33 3 13 151 54 38 -33 8 17 153 57 32 -33 1 57 -0.67
152 14 39 -32 37 54 14 18 26.0 23 292 -47 151 40 31 -32 39 49 152 49 24 -32 36 3 151 15 38 -32 41 17 153 15 31 -32 34 44 -0.67
151 35 56 -32 11 4 14 18 30.9 24 292 -48 151 2 33 -32 13 2 152 9 52 -32 9 9 150 38 13 -32 14 31 152 35 21 -32 7 47 -0.67
150 58 47 -31 44 28 14 18 35.8 24 293 -48 150 26 6 -31 46 29 151 31 59 -31 42 31 150 2 16 -31 48 0 151 56 53 -31 41 6 -0.67
150 23 4 -31 18 6 14 18 40.7 25 293 -49 149 51 3 -31 20 10 150 55 35 -31 16 6 149 27 40 -31 21 43 151 19 58 -31 14 40 -0.67
149 48 42 -30 51 58 14 18 45.6 26 293 -49 149 17 16 -30 54 4 150 20 36 -30 49 56 148 54 19 -30 55 38 150 44 29 -30 48 27 -0.67
149 15 34 -30 26 3 14 18 50.6 26 293 -50 148 44 42 -30 28 10 149 46 53 -30 23 58 148 22 8 -30 29 46 150 10 19 -30 22 27 -0.67
148 43 36 -30 0 19 14 18 55.5 27 293 -50 148 13 14 -30 2 28 149 14 22 -29 58 12 147 51 2 -30 4 6 149 37 23 -29 56 40 -0.67
148 12 42 -29 34 47 14 19 0.4 27 294 -50 147 42 49 -29 36 58 148 42 57 -29 32 38 147 20 58 -29 38 36 149 5 36 -29 31 5 -0.67
147 42 48 -29 9 26 14 19 5.3 28 294 -51 147 13 22 -29 11 38 148 12 35 -29 7 16 146 51 51 -29 13 18 148 34 52 -29 5 41 -0.67
147 13 51 -28 44 15 14 19 10.2 28 294 -51 146 44 51 -28 46 29 147 43 12 -28 42 4 146 23 37 -28 48 10 148 5 8 -28 40 28 -0.67
146 45 48 -28 19 15 14 19 15.2 29 294 -52 146 17 11 -28 21 30 147 14 44 -28 17 2 145 56 15 -28 23 12 147 36 21 -28 15 25 -0.67
146 18 35 -27 54 24 14 19 20.1 29 294 -52 145 50 21 -27 56 41 146 47 7 -27 52 10 145 29 40 -27 58 23 147 8 27 -27 50 32 -0.67
145 52 9 -27 29 43 14 19 25.0 30 294 -52 145 24 16 -27 32 1 146 20 20 -27 27 27 145 3 51 -27 33 44 146 41 22 -27 25 48 -0.67
145 26 28 -27 5 10 14 19 29.9 30 294 -53 144 58 56 -27 7 29 145 54 18 -27 2 54 144 38 45 -27 9 13 146 15 5 -27 1 14 -0.67
145 1 30 -26 40 47 14 19 34.8 31 294 -53 144 34 17 -26 43 6 145 29 0 -26 38 29 144 14 19 -26 44 51 145 49 32 -26 36 49 -0.67
144 37 12 -26 16 31 14 19 39.8 31 294 -54 144 10 17 -26 18 52 145 4 24 -26 14 13 143 50 33 -26 20 37 145 24 41 -26 12 32 -0.67
144 13 33 -25 52 24 14 19 44.7 32 294 -54 143 46 55 -25 54 46 144 40 27 -25 50 5 143 27 23 -25 56 31 145 0 31 -25 48 23 -0.67
143 50 31 -25 28 25 14 19 49.6 32 294 -54 143 24 9 -25 30 47 144 17 7 -25 26 4 143 4 48 -25 32 33 144 36 58 -25 24 22 -0.67
143 28 3 -25 4 33 14 19 54.5 33 294 -55 143 1 57 -25 6 56 143 54 24 -25 2 12 142 42 47 -25 8 42 144 14 2 -25 0 28 -0.67
143 6 8 -24 40 48 14 19 59.4 33 294 -55 142 40 17 -24 43 12 143 32 14 -24 38 26 142 21 18 -24 44 59 143 51 41 -24 36 42 -0.67
142 44 46 -24 17 10 14 20 4.4 34 294 -55 142 19 8 -24 19 35 143 10 37 -24 14 48 142 0 20 -24 21 22 143 29 52 -24 13 4 -0.67
142 23 54 -23 53 40 14 20 9.3 34 294 -56 141 58 30 -23 56 4 142 49 30 -23 51 17 141 39 51 -23 57 52 143 8 36 -23 49 32 -0.67
142 3 30 -23 30 16 14 20 14.2 35 294 -56 141 38 20 -23 32 41 142 28 54 -23 27 52 141 19 50 -23 34 29 142 47 49 -23 26 7 -0.67
141 43 35 -23 6 58 14 20 19.1 35 294 -56 141 18 37 -23 9 24 142 8 46 -23 4 34 141 0 16 -23 11 12 142 27 32 -23 2 48 -0.67
141 24 7 -22 43 46 14 20 24.0 35 294 -57 140 59 20 -22 46 13 141 49 6 -22 41 22 140 41 9 -22 48 2 142 7 42 -22 39 36 -0.67
141 5 4 -22 20 41 14 20 29.0 36 294 -57 140 40 29 -22 23 8 141 29 51 -22 18 16 140 22 26 -22 24 57 141 48 19 -22 16 29 -0.67
140 46 26 -21 57 41 14 20 33.9 36 294 -57 140 22 2 -22 0 9 141 11 2 -21 55 16 140 4 6 -22 1 58 141 29 21 -21 53 29 -0.67
140 28 12 -21 34 48 14 20 38.8 37 294 -58 140 3 59 -21 37 15 140 52 37 -21 32 22 139 46 10 -21 39 5 141 10 48 -21 30 34 -0.67
140 10 21 -21 11 59 14 20 43.7 37 294 -58 139 46 17 -21 14 27 140 34 36 -21 9 33 139 28 37 -21 16 17 140 52 39 -21 7 45 -0.67
139 52 52 -20 49 16 14 20 48.6 37 294 -58 139 28 58 -20 51 45 140 16 57 -20 46 50 139 11 24 -20 53 35 140 34 52 -20 45 2 -0.67
139 35 44 -20 26 39 14 20 53.6 38 294 -58 139 12 0 -20 29 7 139 59 39 -20 24 12 138 54 33 -20 30 58 140 17 28 -20 22 24 -0.67
139 18 57 -20 4 6 14 20 58.5 38 293 -59 138 55 21 -20 6 35 139 42 43 -20 1 39 138 38 1 -20 8 26 140 0 24 -19 59 50 -0.67
139 2 30 -19 41 39 14 21 3.4 39 293 -59 138 39 3 -19 44 8 139 26 7 -19 39 11 138 21 49 -19 45 59 139 43 41 -19 37 22 -0.67
138 46 22 -19 19 16 14 21 8.3 39 293 -59 138 23 3 -19 21 45 139 9 50 -19 16 48 138 5 55 -19 23 37 139 27 18 -19 14 59 -0.67
138 30 32 -18 56 58 14 21 13.2 39 293 -60 138 7 22 -18 59 28 138 53 53 -18 54 29 137 50 19 -19 1 19 139 11 14 -18 52 40 -0.67
138 15 1 -18 34 44 14 21 18.2 40 293 -60 137 51 58 -18 37 14 138 38 13 -18 32 16 137 35 1 -18 39 6 138 55 29 -18 30 26 -0.67
137 59 46 -18 12 35 14 21 23.1 40 293 -60 137 36 51 -18 15 6 138 22 51 -18 10 6 137 19 59 -18 16 57 138 40 1 -18 8 17 -0.67
137 44 49 -17 50 31 14 21 28.0 40 293 -60 137 22 1 -17 53 1 138 7 46 -17 48 1 137 5 15 -17 54 53 138 24 51 -17 46 12 -0.67
137 30 8 -17 28 30 14 21 32.9 41 293 -61 137 7 27 -17 31 1 137 52 58 -17 26 1 136 50 46 -17 32 53 138 9 57 -17 24 11 -0.67
137 15 43 -17 6 34 14 21 37.8 41 292 -61 136 53 8 -17 9 5 137 38 26 -17 4 4 136 36 32 -17 10 57 137 55 20 -17 2 14 -0.67
137 1 33 -16 44 41 14 21 42.8 41 292 -61 136 39 5 -16 47 12 137 24 10 -16 42 11 136 22 33 -16 49 5 137 40 59 -16 40 21 -0.67
136 47 38 -16 22 53 14 21 47.7 42 292 -61 136 25 16 -16 25 24 137 10 9 -16 20 23 136 8 49 -16 27 17 137 26 53 -16 18 32 -0.67
136 33 58 -16 1 8 14 21 52.6 42 292 -62 136 11 42 -16 3 40 136 56 22 -15 58 38 135 55 19 -16 5 32 137 13 2 -15 56 47 -0.67
136 20 32 -15 39 27 14 21 57.5 42 292 -62 135 58 22 -15 41 59 136 42 50 -15 36 57 135 42 3 -15 43 52 136 59 25 -15 35 6 -0.67
136 7 19 -15 17 50 14 22 2.4 43 291 -62 135 45 15 -15 20 22 136 29 32 -15 15 19 135 29 1 -15 22 15 136 46 2 -15 13 28 -0.67
135 54 20 -14 56 16 14 22 7.3 43 291 -62 135 32 21 -14 58 48 136 16 27 -14 53 45 135 16 11 -15 0 41 136 32 53 -14 51 54 -0.67
135 41 34 -14 34 46 14 22 12.3 43 291 -63 135 19 40 -14 37 18 136 3 35 -14 32 14 135 3 34 -14 39 11 136 19 58 -14 30 23 -0.67
135 29 0 -14 13 18 14 22 17.2 43 291 -63 135 7 12 -14 15 51 135 50 57 -14 10 47 134 51 9 -14 17 44 136 7 15 -14 8 56 -0.67
135 16 39 -13 51 55 14 22 22.1 44 291 -63 134 54 56 -13 54 27 135 38 30 -13 49 23 134 38 56 -13 56 20 135 54 45 -13 47 32 -0.67
135 4 30 -13 30 34 14 22 27.0 44 290 -63 134 42 51 -13 33 6 135 26 16 -13 28 2 134 26 55 -13 35 0 135 42 27 -13 26 11 -0.67
134 52 33 -13 9 16 14 22 31.9 44 290 -64 134 30 58 -13 11 49 135 14 14 -13 6 45 134 15 6 -13 13 42 135 30 21 -13 4 53 -0.67
134 40 46 -12 48 2 14 22 36.9 45 290 -64 134 19 17 -12 50 34 135 2 23 -12 45 30 134 3 27 -12 52 28 135 18 27 -12 43 38 -0.67
134 29 12 -12 26 50 14 22 41.8 45 290 -64 134 7 46 -12 29 23 134 50 44 -12 24 18 133 52 0 -12 31 16 135 6 45 -12 22 26 -0.67
134 17 47 -12 5 41 14 22 46.7 45 290 -64 133 56 26 -12 8 14 134 39 16 -12 3 9 133 40 43 -12 10 8 134 55 13 -12 1 17 -0.67
134 6 34 -11 44 35 14 22 51.6 45 289 -64 133 45 17 -11 47 8 134 27 58 -11 42 3 133 29 37 -11 49 2 134 43 52 -11 40 11 -0.67
133 55 31 -11 23 32 14 22 56.5 46 289 -65 133 34 18 -11 26 5 134 16 51 -11 20 59 133 18 40 -11 27 59 134 32 42 -11 19 7 -0.68
133 44 38 -11 2 31 14 23 1.5 46 289 -65 133 23 29 -11 5 4 134 5 55 -10 59 58 133 7 54 -11 6 58 134 21 43 -10 58 6 -0.68
133 33 55 -10 41 33 14 23 6.4 46 289 -65 133 12 49 -10 44 6 133 55 8 -10 39 0 132 57 17 -10 46 0 134 10 53 -10 37 8 -0.68
133 23 22 -10 20 37 14 23 11.3 46 288 -65 133 2 20 -10 23 11 133 44 31 -10 18 4 132 46 50 -10 25 5 134 0 14 -10 16 12 -0.68
133 12 58 - 9 59 44 14 23 16.2 47 288 -65 132 51 59 -10 2 17 133 34 4 - 9 57 11 132 36 32 -10 4 12 133 49 44 - 9 55 19 -0.68
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