|
|
Updated: 2021 Sep 02, 06:15 UT
Event Rank : 99
(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 2021 Oct 01 UT, the 51 km diameter asteroid (1000) Piazzia will occult a 10.0 mag star in the constellation Perseus for observers along a path across New South Wales, south-western Queensland and Northern Territory.
In the case of an occultation, the combined light of the asteroid and the star will drop by 6.82 mag to 16.84 mag (the magnitude of the asteroid) for at most 4.1 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 2853-02153-1 by 1000 Piazzia on 2021 Oct 1
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
150 12 54 -36 39 52 18 18 15.6 5 335 -16 151 10 36 -38 42 2 149 38 57 -35 14 55 ... .. .. .. .. .. 149 25 56 -34 38 52 ....
148 48 44 -34 40 35 18 18 18.5 7 336 -17 149 15 51 -35 55 30 148 28 11 -33 36 28 149 33 17 -36 39 10 148 19 36 -33 7 21 0.71
147 44 20 -33 11 15 18 18 21.3 9 337 -19 148 2 1 -34 11 15 147 29 59 -32 17 1 148 12 30 -34 43 57 147 23 48 -31 51 43 0.77
146 49 44 -31 56 55 18 18 24.2 11 337 -20 147 2 26 -32 48 51 146 39 6 -31 8 43 147 9 44 -33 16 25 146 34 27 -30 45 56 0.80
146 1 15 -30 52 0 18 18 27.0 12 338 -21 146 10 48 -31 38 44 145 53 10 -30 8 1 146 16 11 -32 3 9 145 49 36 -29 47 1 0.81
145 17 5 -29 53 45 18 18 29.9 13 338 -22 145 24 23 -30 36 44 145 10 51 -29 12 53 145 28 29 -30 59 0 145 8 6 -28 53 15 0.82
144 36 7 -29 0 31 18 18 32.8 14 338 -23 144 41 45 -29 40 39 144 31 18 -28 22 6 144 44 55 -30 1 19 144 29 12 -28 3 33 0.83
143 57 40 -28 11 15 18 18 35.6 15 339 -23 144 2 0 -28 49 8 143 54 0 -27 34 48 144 4 27 -29 8 33 143 52 24 -27 17 9 0.84
143 21 15 -27 25 12 18 18 38.5 16 339 -24 143 24 33 -28 1 14 143 18 31 -26 50 23 143 26 25 -28 19 39 143 17 20 -26 33 29 0.84
142 46 32 -26 41 52 18 18 41.3 17 339 -25 142 48 58 -27 16 21 142 44 34 -26 8 26 142 50 22 -27 33 56 142 43 45 -25 52 10 0.84
142 13 15 -26 0 49 18 18 44.2 18 340 -25 142 14 57 -26 34 0 142 11 56 -25 28 35 142 15 58 -26 50 52 142 11 25 -25 12 52 0.85
141 41 11 -25 21 47 18 18 47.0 18 340 -26 141 42 17 -25 53 49 141 40 27 -24 50 34 141 42 57 -26 10 4 141 40 11 -24 35 21 0.85
141 10 12 -24 44 29 18 18 49.9 19 340 -27 141 10 45 -25 15 31 141 9 56 -24 14 11 141 11 9 -25 31 15 141 9 55 -23 59 24 0.85
140 40 9 -24 8 44 18 18 52.8 20 341 -27 140 40 14 -24 38 54 140 40 19 -23 39 16 140 40 23 -24 54 9 140 40 30 -23 24 51 0.85
140 10 56 -23 34 23 18 18 55.6 20 341 -28 140 10 36 -24 3 45 140 11 29 -23 5 38 140 10 32 -24 18 36 140 11 50 -22 51 33 0.85
139 42 27 -23 1 16 18 18 58.5 21 341 -28 139 41 46 -23 29 56 139 43 21 -22 33 11 139 41 31 -23 44 25 139 43 52 -22 19 25 0.85
139 14 39 -22 29 18 18 19 1.3 22 341 -29 139 13 38 -22 57 20 139 15 51 -22 1 49 139 13 13 -23 11 28 139 16 31 -21 48 20 0.86
138 47 27 -21 58 22 18 19 4.2 22 342 -30 138 46 9 -22 25 49 138 48 56 -21 31 26 138 45 34 -22 39 39 138 49 44 -21 18 13 0.86
138 20 49 -21 28 24 18 19 7.0 23 342 -30 138 19 15 -21 55 18 138 22 32 -21 1 57 138 18 31 -22 8 52 138 23 27 -20 48 59 0.86
137 54 41 -20 59 18 18 19 9.9 24 342 -31 137 52 52 -21 25 44 137 56 38 -20 33 20 137 52 1 -21 39 2 137 57 39 -20 20 34 0.86
137 29 0 -20 31 2 18 19 12.8 24 342 -31 137 26 58 -20 57 0 137 31 10 -20 5 29 137 26 1 -21 10 4 137 32 17 -19 52 55 0.86
137 3 45 -20 3 31 18 19 15.6 25 343 -32 137 1 31 -20 29 4 137 6 6 -19 38 22 137 0 28 -20 41 55 137 7 19 -19 25 59 0.86
136 38 54 -19 36 43 18 19 18.5 25 343 -32 136 36 29 -20 1 52 136 41 25 -19 11 55 136 35 20 -20 14 32 136 42 43 -18 59 44 0.86
136 14 25 -19 10 34 18 19 21.3 26 343 -33 136 11 49 -19 35 22 136 17 6 -18 46 8 136 10 35 -19 47 50 136 18 28 -18 34 6 0.86
135 50 16 -18 45 4 18 19 24.2 26 343 -33 135 47 31 -19 9 31 135 53 6 -18 20 56 135 46 11 -19 21 49 135 54 32 -18 9 4 0.86
135 26 26 -18 20 8 18 19 27.0 27 344 -34 135 23 32 -18 44 17 135 29 24 -17 56 19 135 22 8 -18 56 24 135 30 55 -17 44 35 0.86
135 2 53 -17 55 46 18 19 29.9 27 344 -34 134 59 52 -18 19 37 135 6 0 -17 32 14 134 58 24 -18 31 35 135 7 34 -17 20 38 0.86
134 39 38 -17 31 56 18 19 32.8 28 344 -34 134 36 29 -17 55 30 134 42 51 -17 8 40 134 34 56 -18 7 19 134 44 29 -16 57 12 0.86
134 16 37 -17 8 35 18 19 35.6 28 344 -35 134 13 21 -17 31 53 134 19 58 -16 45 34 134 11 46 -17 43 35 134 21 39 -16 34 14 0.86
133 53 52 -16 45 43 18 19 38.5 29 344 -35 133 50 29 -17 8 47 133 57 18 -16 22 57 133 48 50 -17 20 21 133 59 2 -16 11 43 0.86
133 31 20 -16 23 19 18 19 41.3 29 345 -36 133 27 51 -16 46 8 133 34 52 -16 0 46 133 26 9 -16 57 35 133 36 39 -15 49 39 0.86
133 9 1 -16 1 20 18 19 44.2 30 345 -36 133 5 26 -16 23 56 133 12 39 -15 39 0 133 3 41 -16 35 16 133 14 28 -15 27 59 0.86
132 46 54 -15 39 46 18 19 47.0 30 345 -37 132 43 14 -16 2 9 132 50 37 -15 17 38 132 41 26 -16 13 22 132 52 29 -15 6 43 0.86
132 24 58 -15 18 36 18 19 49.9 30 345 -37 132 21 14 -15 40 47 132 28 46 -14 56 39 132 19 23 -15 51 54 132 30 41 -14 45 50 0.86
132 3 14 -14 57 49 18 19 52.8 31 346 -38 131 59 24 -15 19 48 132 7 7 -14 36 3 131 57 31 -15 30 49 132 9 3 -14 25 19 0.86
131 41 40 -14 37 23 18 19 55.6 31 346 -38 131 37 45 -14 59 11 131 45 37 -14 15 48 131 35 50 -15 10 7 131 47 35 -14 5 9 0.86
131 20 15 -14 17 18 18 19 58.5 32 346 -38 131 16 17 -14 38 56 131 24 16 -13 55 53 131 14 19 -14 49 47 131 26 17 -13 45 19 0.86
130 59 0 -13 57 34 18 20 1.3 32 346 -39 130 54 57 -14 19 2 131 3 5 -13 36 19 130 52 57 -14 29 47 131 5 7 -13 25 49 0.86
130 37 53 -13 38 9 18 20 4.2 32 347 -39 130 33 47 -13 59 28 130 42 2 -13 17 3 130 31 45 -14 10 8 130 44 6 -13 6 38 0.86
130 16 55 -13 19 3 18 20 7.1 33 347 -40 130 12 45 -13 40 13 130 21 7 -12 58 6 130 10 41 -13 50 48 130 23 13 -12 47 45 0.86
129 56 4 -13 0 15 18 20 9.9 33 347 -40 129 51 51 -13 21 16 130 0 19 -12 39 26 129 49 46 -13 31 47 130 2 27 -12 29 9 0.86
129 35 21 -12 41 45 18 20 12.8 34 347 -40 129 31 5 -13 2 37 129 39 39 -12 21 4 129 28 58 -13 13 4 129 41 49 -12 10 51 0.86
129 14 45 -12 23 31 18 20 15.6 34 348 -41 129 10 26 -12 44 16 129 19 6 -12 2 58 129 8 17 -12 54 39 129 21 17 -11 52 49 0.86
128 54 16 -12 5 34 18 20 18.5 34 348 -41 128 49 53 -12 26 11 128 58 40 -11 45 8 128 47 44 -12 36 30 129 0 52 -11 35 3 0.86
128 33 53 -11 47 53 18 20 21.3 35 348 -42 128 29 28 -12 8 23 128 38 20 -11 27 35 128 27 17 -12 18 38 128 40 33 -11 17 32 0.86
128 13 36 -11 30 28 18 20 24.2 35 348 -42 128 9 9 -11 50 50 128 18 6 -11 10 16 128 6 56 -12 1 2 128 20 20 -11 0 17 0.86
127 53 26 -11 13 17 18 20 27.1 35 349 -42 127 48 55 -11 33 33 127 57 57 -10 53 12 127 46 42 -11 43 41 128 0 13 -10 43 16 0.86
127 33 20 -10 56 21 18 20 29.9 36 349 -43 127 28 48 -11 16 30 127 37 54 -10 36 22 127 26 33 -11 26 35 127 40 11 -10 26 30 0.86
127 13 20 -10 39 40 18 20 32.8 36 349 -43 127 8 46 -10 59 42 127 17 57 -10 19 47 127 6 29 -11 9 44 127 20 14 -10 9 57 0.86
126 53 25 -10 23 12 18 20 35.6 36 349 -43 126 48 48 -10 43 8 126 58 4 -10 3 24 126 46 31 -10 53 7 127 0 23 - 9 53 38 0.86
126 33 35 -10 6 57 18 20 38.5 37 349 -44 126 28 56 -10 26 48 126 38 15 - 9 47 16 126 26 38 -10 36 44 126 40 35 - 9 37 32 0.86
126 13 50 - 9 50 56 18 20 41.3 37 350 -44 126 9 9 -10 10 41 126 18 32 - 9 31 20 126 6 49 -10 20 34 126 20 52 - 9 21 38 0.86
125 54 8 - 9 35 7 18 20 44.2 37 350 -45 125 49 26 - 9 54 47 125 58 52 - 9 15 36 125 47 5 -10 4 37 126 1 14 - 9 5 57 0.86
Use these links for further information:
[Planetary Occultations]
[Using the Predictions]
[Observing Details]
[Timing Details]
[Reporting Details]
[Report Form]
[Asteroid Occultation Results]
[Top of Page][Return to Home Page]