|
|
Updated: 2021 Dec 31, 01:51 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 2022 Feb 22 UT, the 140 km diameter asteroid (762) Pulcova will occult a 11.2 mag star in the constellation Gemini for observers along a path across Queensland, New South Wales, Victoria and western Tasmania.
In the case of an occultation, the combined light of the asteroid and the star will drop by 1.8 mag to 12.76 mag (the magnitude of the asteroid) for at most 26.5 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 1898-01398-1 by 762 Pulcova #1 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
149 58 37 -17 21 12 12 33 42.0 41 328 -53 150 43 14 -17 55 51 149 14 51 -16 47 15 150 58 25 -18 7 38 149 0 19 -16 36 1 0.95
149 49 38 -17 42 11 12 33 48.7 40 328 -53 150 34 23 -18 16 59 149 5 42 -17 8 6 150 49 37 -18 28 50 148 51 9 -16 56 48 0.95
149 40 41 -18 3 18 12 33 55.5 40 329 -52 150 25 36 -18 38 16 148 56 38 -17 29 4 150 40 53 -18 50 10 148 42 1 -17 17 43 0.95
149 31 49 -18 24 34 12 34 2.2 40 329 -52 150 16 53 -18 59 41 148 47 37 -17 50 10 150 32 14 -19 11 39 148 32 58 -17 38 47 0.95
149 23 1 -18 45 58 12 34 9.0 40 329 -52 150 8 15 -19 21 16 148 38 40 -18 11 25 150 23 39 -19 33 17 148 23 58 -17 59 58 0.95
149 14 17 -19 7 31 12 34 15.7 39 329 -51 149 59 41 -19 42 59 148 29 46 -18 32 48 150 15 8 -19 55 4 148 15 1 -18 21 19 0.96
149 5 36 -19 29 14 12 34 22.5 39 330 -51 149 51 11 -20 4 53 148 20 56 -18 54 20 150 6 42 -20 17 1 148 6 8 -18 42 47 0.96
148 57 0 -19 51 5 12 34 29.3 39 330 -51 149 42 45 -20 26 55 148 12 10 -19 16 1 149 58 20 -20 39 8 147 57 19 -19 4 25 0.96
148 48 28 -20 13 6 12 34 36.0 39 330 -50 149 34 25 -20 49 8 148 3 28 -19 37 52 149 50 3 -21 1 25 147 48 34 -19 26 12 0.96
148 40 0 -20 35 17 12 34 42.8 38 330 -50 149 26 8 -21 11 31 147 54 50 -19 59 51 149 41 51 -21 23 52 147 39 52 -19 48 8 0.96
148 31 37 -20 57 38 12 34 49.5 38 331 -50 149 17 56 -21 34 5 147 46 15 -20 22 1 149 33 44 -21 46 30 147 31 14 -20 10 13 0.96
148 23 17 -21 20 9 12 34 56.3 38 331 -49 149 9 49 -21 56 49 147 37 45 -20 44 20 149 25 41 -22 9 19 147 22 40 -20 32 29 0.96
148 15 3 -21 42 51 12 35 3.0 37 331 -49 149 1 47 -22 19 44 147 29 18 -21 6 49 149 17 43 -22 32 18 147 14 10 -20 54 54 0.96
148 6 52 -22 5 44 12 35 9.8 37 331 -49 148 53 50 -22 42 50 147 20 56 -21 29 29 149 9 51 -22 55 30 147 5 44 -21 17 30 0.96
147 58 46 -22 28 47 12 35 16.5 37 332 -48 148 45 58 -23 6 8 147 12 38 -21 52 19 149 2 4 -23 18 53 146 57 22 -21 40 16 0.96
147 50 45 -22 52 2 12 35 23.3 37 332 -48 148 38 11 -23 29 38 147 4 24 -22 15 20 148 54 22 -23 42 28 146 49 4 -22 3 13 0.96
147 42 49 -23 15 29 12 35 30.1 36 332 -48 148 30 29 -23 53 20 146 56 15 -22 38 33 148 46 45 -24 6 15 146 40 50 -22 26 21 0.97
147 34 58 -23 39 8 12 35 36.8 36 332 -47 148 22 53 -24 17 15 146 48 9 -23 1 57 148 39 14 -24 30 16 146 32 41 -22 49 40 0.97
147 27 11 -24 2 59 12 35 43.6 36 333 -47 148 15 22 -24 41 23 146 40 9 -23 25 33 148 31 49 -24 54 30 146 24 36 -23 13 11 0.97
147 19 30 -24 27 3 12 35 50.3 35 333 -47 148 7 57 -25 5 44 146 32 13 -23 49 21 148 24 30 -25 18 57 146 16 35 -23 36 54 0.97
147 11 54 -24 51 20 12 35 57.1 35 333 -46 148 0 38 -25 30 19 146 24 21 -24 13 22 148 17 17 -25 43 38 146 8 39 -24 0 50 0.97
147 4 23 -25 15 51 12 36 3.8 35 333 -46 147 53 25 -25 55 8 146 16 35 -24 37 36 148 10 10 -26 8 34 146 0 47 -24 24 58 0.97
146 56 58 -25 40 36 12 36 10.6 34 334 -45 147 46 18 -26 20 12 146 8 54 -25 2 3 148 3 10 -26 33 45 145 53 1 -24 49 19 0.97
146 49 39 -26 5 35 12 36 17.4 34 334 -45 147 39 18 -26 45 32 146 1 17 -25 26 44 147 56 17 -26 59 11 145 45 19 -25 13 54 0.97
146 42 26 -26 30 50 12 36 24.1 34 334 -45 147 32 25 -27 11 7 145 53 46 -25 51 39 147 49 30 -27 24 54 145 37 43 -25 38 43 0.97
146 35 19 -26 56 19 12 36 30.9 33 334 -44 147 25 38 -27 36 58 145 46 21 -26 16 48 147 42 51 -27 50 53 145 30 11 -26 3 47 0.97
146 28 18 -27 22 5 12 36 37.6 33 334 -44 147 18 58 -28 3 6 145 39 1 -26 42 13 147 36 19 -28 17 9 145 22 45 -26 29 5 0.97
146 21 24 -27 48 7 12 36 44.4 33 335 -44 147 12 26 -28 29 32 145 31 46 -27 7 54 147 29 56 -28 43 44 145 15 25 -26 54 39 0.97
146 14 36 -28 14 27 12 36 51.1 32 335 -43 147 6 2 -28 56 16 145 24 38 -27 33 51 147 23 40 -29 10 36 145 8 10 -27 20 29 0.97
146 7 56 -28 41 4 12 36 57.9 32 335 -43 146 59 46 -29 23 19 145 17 36 -28 0 4 147 17 33 -29 37 48 145 1 1 -27 46 35 0.98
146 1 23 -29 7 59 12 37 4.7 32 335 -42 146 53 39 -29 50 42 145 10 41 -28 26 35 147 11 34 -30 5 21 144 53 59 -28 12 58 0.98
145 54 58 -29 35 14 12 37 11.4 31 335 -42 146 47 40 -30 18 25 145 3 52 -28 53 25 147 5 46 -30 33 14 144 47 3 -28 39 39 0.98
145 48 41 -30 2 49 12 37 18.2 31 336 -42 146 41 51 -30 46 29 144 57 10 -29 20 32 147 0 6 -31 1 28 144 40 13 -29 6 39 0.98
145 42 32 -30 30 44 12 37 24.9 30 336 -41 146 36 12 -31 14 55 144 50 36 -29 48 0 146 54 38 -31 30 6 144 33 31 -29 33 57 0.98
145 36 32 -30 59 1 12 37 31.7 30 336 -41 146 30 42 -31 43 45 144 44 9 -30 15 48 146 49 20 -31 59 7 144 26 55 -30 1 36 0.98
145 30 42 -31 27 41 12 37 38.4 30 336 -40 146 25 24 -32 12 59 144 37 50 -30 43 57 146 44 13 -32 28 34 144 20 28 -30 29 35 0.98
145 25 1 -31 56 45 12 37 45.2 29 336 -40 146 20 18 -32 42 38 144 31 40 -31 12 27 146 39 19 -32 58 26 144 14 8 -30 57 55 0.98
145 19 31 -32 26 13 12 37 51.9 29 336 -40 146 15 23 -33 12 44 144 25 38 -31 41 21 146 34 38 -33 28 46 144 7 57 -31 26 39 0.98
145 14 12 -32 56 7 12 37 58.7 28 337 -39 146 10 42 -33 43 18 144 19 46 -32 10 40 146 30 10 -33 59 34 144 1 55 -31 55 46 0.98
145 9 4 -33 26 28 12 38 5.5 28 337 -39 146 6 14 -34 14 22 144 14 3 -32 40 23 146 25 58 -34 30 53 143 56 2 -32 25 17 0.98
145 4 9 -33 57 18 12 38 12.2 27 337 -38 146 2 1 -34 45 56 144 8 32 -33 10 32 146 22 0 -35 2 44 143 50 19 -32 55 14 0.98
144 59 27 -34 28 37 12 38 19.0 27 337 -38 145 58 4 -35 18 4 144 3 11 -33 41 10 146 18 20 -35 35 9 143 44 46 -33 25 39 0.98
144 54 59 -35 0 29 12 38 25.7 26 337 -37 145 54 24 -35 50 46 143 58 2 -34 12 17 146 14 58 -36 8 9 143 39 24 -33 56 31 0.98
144 50 46 -35 32 54 12 38 32.5 26 337 -37 145 51 2 -36 24 5 143 53 5 -34 43 54 146 11 55 -36 41 48 143 34 14 -34 27 54 0.99
144 46 50 -36 5 54 12 38 39.2 26 337 -36 145 48 0 -36 58 3 143 48 22 -35 16 4 146 9 13 -37 16 7 143 29 17 -34 59 48 0.99
144 43 10 -36 39 32 12 38 46.0 25 338 -36 145 45 19 -37 32 43 143 43 54 -35 48 48 146 6 55 -37 51 10 143 24 34 -35 32 15 0.99
144 39 50 -37 13 50 12 38 52.8 24 338 -36 145 43 2 -38 8 7 143 39 40 -36 22 8 146 5 1 -38 26 59 143 20 5 -36 5 18 0.99
144 36 51 -37 48 51 12 38 59.5 24 338 -35 145 41 10 -38 44 19 143 35 44 -36 56 7 146 3 35 -39 3 38 143 15 51 -36 38 58 0.99
144 34 14 -38 24 38 12 39 6.3 23 338 -35 145 39 47 -39 21 23 143 32 6 -37 30 48 146 2 40 -39 41 11 143 11 55 -37 13 18 0.99
144 32 1 -39 1 14 12 39 13.0 23 338 -34 145 38 54 -39 59 23 143 28 48 -38 6 12 146 2 17 -40 19 42 143 8 17 -37 48 20 0.99
144 30 16 -39 38 43 12 39 19.8 22 338 -34 145 38 35 -40 38 23 143 25 51 -38 42 23 146 2 33 -40 59 16 143 4 59 -38 24 8 0.99
144 29 1 -40 17 9 12 39 26.5 22 338 -33 145 38 55 -41 18 29 143 23 18 -39 19 25 146 3 30 -41 40 1 143 2 4 -39 0 44 0.99
144 28 18 -40 56 37 12 39 33.3 21 338 -32 145 39 58 -41 59 48 143 21 11 -39 57 21 146 5 14 -42 22 1 142 59 32 -39 38 13 0.99
144 28 13 -41 37 13 12 39 40.0 20 338 -32 145 41 50 -42 42 26 143 19 33 -40 36 16 146 7 52 -43 5 26 142 57 27 -40 16 38 0.99
144 28 50 -42 19 4 12 39 46.8 20 338 -31 145 44 37 -43 26 32 143 18 28 -41 16 16 146 11 31 -43 50 25 142 55 52 -40 56 5 -0.99
144 30 15 -43 2 17 12 39 53.6 19 339 -31 145 48 29 -44 12 18 143 17 58 -41 57 26 146 16 22 -44 37 11 142 54 49 -41 36 39 -0.99
144 32 33 -43 47 2 12 40 0.3 18 339 -30 145 53 35 -44 59 56 143 18 10 -42 39 53 146 22 37 -45 25 58 142 54 24 -42 18 26 -1.00
144 35 55 -44 33 29 12 40 7.1 18 339 -30 146 0 9 -45 49 41 143 19 7 -43 23 46 146 30 31 -46 17 4 142 54 42 -43 1 34 -1.00
144 40 30 -45 21 54 12 40 13.8 17 339 -29 146 8 28 -46 41 55 143 20 58 -44 9 14 146 40 26 -47 10 52 142 55 47 -43 46 12 -1.00
144 46 32 -46 12 31 12 40 20.6 16 339 -28 146 18 56 -47 37 4 143 23 51 -44 56 30 146 52 49 -48 7 55 142 57 48 -44 32 30 -1.00
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]