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Updated: 2021 Sep 02, 06:42 UT
Event Rank : 57
(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 28 UT, the 23 km diameter asteroid (6925) Susumu will occult a 7.7 mag star in the constellation Pisces for observers along a somewhat uncertain path across Queensland, New South Wales and eastern Victoria, passing over Dubbo and Canberra.
In the case of an occultation, the combined light of the asteroid and the star will drop by 9.12 mag to 16.82 mag (the magnitude of the asteroid) for at most 3.4 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 579-00479-1 by 6925 Susumu on 2021 Oct 28
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
147 8 7 -10 10 53 11 24 55.3 74 325 -46 147 14 44 -10 10 34 147 1 30 -10 11 13 147 29 8 -10 9 52 146 47 7 -10 11 55 -0.16
147 8 37 -10 33 54 11 25 1.1 74 325 -46 147 15 14 -10 33 35 147 2 0 -10 34 13 147 29 39 -10 32 53 146 47 36 -10 34 55 -0.16
147 9 9 -10 56 57 11 25 7.0 73 326 -46 147 15 46 -10 56 37 147 2 31 -10 57 16 147 30 13 -10 55 56 146 48 6 -10 57 58 -0.16
147 9 43 -11 20 2 11 25 12.8 73 327 -45 147 16 21 -11 19 42 147 3 4 -11 20 21 147 30 48 -11 19 1 146 48 38 -11 21 3 -0.16
147 10 18 -11 43 9 11 25 18.7 73 327 -45 147 16 57 -11 42 50 147 3 40 -11 43 29 147 31 26 -11 42 8 146 49 12 -11 44 11 -0.16
147 10 56 -12 6 19 11 25 24.6 72 328 -45 147 17 35 -12 6 0 147 4 17 -12 6 38 147 32 5 -12 5 18 146 49 48 -12 7 21 -0.16
147 11 36 -12 29 31 11 25 30.4 72 328 -45 147 18 16 -12 29 12 147 4 56 -12 29 51 147 32 47 -12 28 30 146 50 25 -12 30 33 -0.16
147 12 17 -12 52 46 11 25 36.3 72 329 -45 147 18 58 -12 52 27 147 5 37 -12 53 6 147 33 31 -12 51 45 146 51 5 -12 53 48 -0.16
147 13 1 -13 16 4 11 25 42.1 71 329 -45 147 19 42 -13 15 44 147 6 20 -13 16 23 147 34 16 -13 15 2 146 51 47 -13 17 6 -0.16
147 13 47 -13 39 24 11 25 48.0 71 330 -44 147 20 29 -13 39 4 147 7 5 -13 39 43 147 35 4 -13 38 22 146 52 31 -13 40 26 -0.16
147 14 35 -14 2 47 11 25 53.8 71 330 -44 147 21 18 -14 2 27 147 7 52 -14 3 6 147 35 55 -14 1 45 146 53 16 -14 3 49 -0.16
147 15 25 -14 26 13 11 25 59.7 70 331 -44 147 22 9 -14 25 53 147 8 42 -14 26 32 147 36 47 -14 25 11 146 54 4 -14 27 15 -0.17
147 16 18 -14 49 42 11 26 5.6 70 331 -44 147 23 2 -14 49 22 147 9 34 -14 50 1 147 37 42 -14 48 40 146 54 55 -14 50 44 -0.17
147 17 12 -15 13 14 11 26 11.4 70 331 -44 147 23 57 -15 12 54 147 10 28 -15 13 33 147 38 39 -15 12 12 146 55 47 -15 14 16 -0.17
147 18 10 -15 36 49 11 26 17.3 69 332 -43 147 24 55 -15 36 29 147 11 24 -15 37 8 147 39 39 -15 35 47 146 56 42 -15 37 51 -0.17
147 19 9 -16 0 27 11 26 23.1 69 332 -43 147 25 55 -16 0 7 147 12 23 -16 0 47 147 40 41 -15 59 25 146 57 38 -16 1 30 -0.17
147 20 11 -16 24 9 11 26 29.0 68 333 -43 147 26 58 -16 23 49 147 13 24 -16 24 28 147 41 45 -16 23 6 146 58 38 -16 25 11 -0.17
147 21 15 -16 47 54 11 26 34.8 68 333 -43 147 28 3 -16 47 34 147 14 27 -16 48 13 147 42 52 -16 46 51 146 59 39 -16 48 56 -0.17
147 24 44 -17 59 30 11 26 52.4 67 334 -42 147 31 35 -17 59 10 147 17 53 -17 59 50 147 46 30 -17 58 27 147 2 59 -18 0 33 -0.17
147 25 59 -18 23 30 11 26 58.3 67 334 -42 147 32 51 -18 23 10 147 19 7 -18 23 50 147 47 48 -18 22 27 147 4 11 -18 24 33 -0.17
147 27 16 -18 47 33 11 27 4.1 66 334 -42 147 34 9 -18 47 13 147 20 24 -18 47 53 147 49 8 -18 46 30 147 5 26 -18 48 37 -0.17
147 28 37 -19 11 41 11 27 10.0 66 335 -41 147 35 31 -19 11 21 147 21 43 -19 12 1 147 50 32 -19 10 38 147 6 43 -19 12 44 -0.17
147 30 0 -19 35 52 11 27 15.8 65 335 -41 147 36 55 -19 35 32 147 23 6 -19 36 12 147 51 59 -19 34 49 147 8 3 -19 36 56 -0.17
147 31 27 -20 0 8 11 27 21.7 65 335 -41 147 38 23 -19 59 48 147 24 31 -20 0 28 147 53 29 -19 59 5 147 9 26 -20 1 12 -0.17
147 32 56 -20 24 28 11 27 27.6 65 336 -41 147 39 53 -20 24 8 147 25 59 -20 24 48 147 55 2 -20 23 25 147 10 52 -20 25 32 -0.17
147 34 29 -20 48 53 11 27 33.4 64 336 -41 147 41 27 -20 48 33 147 27 31 -20 49 13 147 56 38 -20 47 49 147 12 21 -20 49 57 -0.17
147 36 4 -21 13 22 11 27 39.3 64 336 -40 147 43 4 -21 13 2 147 29 5 -21 13 42 147 58 17 -21 12 18 147 13 53 -21 14 26 -0.17
147 37 43 -21 37 56 11 27 45.1 63 336 -40 147 44 44 -21 37 35 147 30 43 -21 38 16 148 0 0 -21 36 52 147 15 28 -21 39 0 -0.17
147 39 26 -22 2 34 11 27 51.0 63 336 -40 147 46 28 -22 2 14 147 32 24 -22 2 54 148 1 46 -22 1 30 147 17 6 -22 3 38 -0.17
147 41 12 -22 27 17 11 27 56.8 63 337 -40 147 48 15 -22 26 57 147 34 9 -22 27 38 148 3 36 -22 26 13 147 18 48 -22 28 22 -0.17
147 43 1 -22 52 6 11 28 2.7 62 337 -39 147 50 5 -22 51 45 147 35 57 -22 52 26 148 5 30 -22 51 1 147 20 33 -22 53 11 -0.17
147 44 54 -23 16 59 11 28 8.6 62 337 -39 147 52 0 -23 16 39 147 37 48 -23 17 20 148 7 27 -23 15 55 147 22 22 -23 18 4 -0.17
147 46 51 -23 41 58 11 28 14.4 61 337 -39 147 53 58 -23 41 38 147 39 44 -23 42 19 148 9 28 -23 40 54 147 24 15 -23 43 3 -0.17
147 48 51 -24 7 3 11 28 20.3 61 337 -39 147 56 0 -24 6 42 147 41 43 -24 7 23 148 11 33 -24 5 58 147 26 11 -24 8 8 -0.17
147 50 56 -24 32 12 11 28 26.1 61 338 -38 147 58 6 -24 31 52 147 43 46 -24 32 33 148 13 43 -24 31 7 147 28 11 -24 33 18 -0.17
147 53 5 -24 57 28 11 28 32.0 60 338 -38 148 0 16 -24 57 7 147 45 53 -24 57 49 148 15 56 -24 56 23 147 30 15 -24 58 34 -0.17
147 55 17 -25 22 49 11 28 37.8 60 338 -38 148 2 30 -25 22 29 147 48 5 -25 23 10 148 18 14 -25 21 44 147 32 23 -25 23 55 -0.17
147 57 35 -25 48 17 11 28 43.7 59 338 -38 148 4 49 -25 47 56 147 50 20 -25 48 37 148 20 36 -25 47 11 147 34 35 -25 49 23 -0.18
147 59 56 -26 13 50 11 28 49.6 59 338 -37 148 7 12 -26 13 30 147 52 40 -26 14 11 148 23 3 -26 12 45 147 36 51 -26 14 57 -0.18
148 2 22 -26 39 30 11 28 55.4 59 338 -37 148 9 40 -26 39 9 147 55 5 -26 39 51 148 25 34 -26 38 24 147 39 12 -26 40 37 -0.18
148 4 53 -27 5 17 11 29 1.3 58 339 -37 148 12 13 -27 4 56 147 57 34 -27 5 38 148 28 10 -27 4 11 147 41 38 -27 6 23 -0.18
148 7 29 -27 31 10 11 29 7.1 58 339 -37 148 14 50 -27 30 49 148 0 8 -27 31 31 148 30 52 -27 30 3 147 44 8 -27 32 17 -0.18
148 10 10 -27 57 10 11 29 13.0 57 339 -36 148 17 33 -27 56 49 148 2 47 -27 57 31 148 33 38 -27 56 3 147 46 43 -27 58 17 -0.18
148 12 55 -28 23 17 11 29 18.8 57 339 -36 148 20 20 -28 22 55 148 5 31 -28 23 38 148 36 30 -28 22 10 147 49 23 -28 24 24 -0.18
148 15 47 -28 49 31 11 29 24.7 56 339 -36 148 23 14 -28 49 10 148 8 20 -28 49 52 148 39 27 -28 48 24 147 52 8 -28 50 38 -0.18
148 18 43 -29 15 52 11 29 30.5 56 339 -36 148 26 12 -29 15 31 148 11 15 -29 16 13 148 42 30 -29 14 45 147 54 58 -29 17 0 -0.18
148 21 46 -29 42 21 11 29 36.4 56 339 -35 148 29 17 -29 42 0 148 14 15 -29 42 43 148 45 39 -29 41 14 147 57 54 -29 43 29 -0.18
148 24 54 -30 8 58 11 29 42.3 55 339 -35 148 32 27 -30 8 37 148 17 22 -30 9 20 148 48 54 -30 7 51 148 0 56 -30 10 7 -0.18
148 28 9 -30 35 43 11 29 48.1 55 339 -35 148 35 44 -30 35 22 148 20 34 -30 36 5 148 52 15 -30 34 36 148 4 4 -30 36 52 -0.18
148 31 29 -31 2 37 11 29 54.0 54 339 -35 148 39 7 -31 2 15 148 23 52 -31 2 58 148 55 43 -31 1 28 148 7 18 -31 3 45 -0.18
148 34 57 -31 29 38 11 29 59.8 54 340 -34 148 42 36 -31 29 17 148 27 17 -31 30 0 148 59 17 -31 28 30 148 10 38 -31 30 47 -0.18
148 38 31 -31 56 49 11 30 5.7 53 340 -34 148 46 13 -31 56 27 148 30 49 -31 57 10 149 2 59 -31 55 40 148 14 5 -31 57 58 -0.18
148 42 12 -32 24 8 11 30 11.5 53 340 -34 148 49 56 -32 23 46 148 34 28 -32 24 30 149 6 47 -32 22 59 148 17 38 -32 25 18 -0.18
148 46 0 -32 51 37 11 30 17.4 52 340 -33 148 53 47 -32 51 15 148 38 14 -32 51 59 149 10 44 -32 50 28 148 21 19 -32 52 46 -0.18
148 49 56 -33 19 15 11 30 23.3 52 340 -33 148 57 45 -33 18 53 148 42 7 -33 19 37 149 14 48 -33 18 5 148 25 7 -33 20 25 -0.18
148 54 0 -33 47 3 11 30 29.1 52 340 -33 149 1 52 -33 46 41 148 46 9 -33 47 25 149 19 0 -33 45 53 148 29 2 -33 48 13 -0.18
148 58 12 -34 15 1 11 30 35.0 51 340 -32 149 6 7 -34 14 39 148 50 18 -34 15 23 149 23 20 -34 13 51 148 33 6 -34 16 11 -0.18
149 2 33 -34 43 9 11 30 40.8 51 340 -32 149 10 30 -34 42 47 148 54 36 -34 43 31 149 27 50 -34 41 59 148 37 18 -34 44 20 -0.18
149 7 2 -35 11 28 11 30 46.7 50 340 -32 149 15 2 -35 11 6 148 59 2 -35 11 50 149 32 28 -35 10 17 148 41 38 -35 12 39 -0.18
149 11 41 -35 39 58 11 30 52.5 50 340 -32 149 19 44 -35 39 35 149 3 38 -35 40 20 149 37 16 -35 38 47 148 46 7 -35 41 9 -0.18
149 16 29 -36 8 39 11 30 58.4 49 340 -31 149 24 35 -36 8 16 149 8 23 -36 9 2 149 42 14 -36 7 28 148 50 46 -36 9 51 -0.18
149 21 27 -36 37 32 11 31 4.3 49 340 -31 149 29 36 -36 37 9 149 13 18 -36 37 55 149 47 22 -36 36 20 148 55 34 -36 38 44 -0.18
149 26 36 -37 6 37 11 31 10.1 48 340 -31 149 34 48 -37 6 14 149 18 24 -37 7 0 149 52 41 -37 5 25 149 0 33 -37 7 49 -0.18
149 31 55 -37 35 54 11 31 16.0 48 340 -30 149 40 11 -37 35 31 149 23 40 -37 36 17 149 58 11 -37 34 42 149 5 42 -37 37 7 -0.18
149 37 27 -38 5 24 11 31 21.8 47 340 -30 149 45 46 -38 5 2 149 29 8 -38 5 47 150 3 53 -38 4 12 149 11 2 -38 6 38 -0.18
149 43 10 -38 35 8 11 31 27.7 47 340 -30 149 51 32 -38 34 45 149 34 47 -38 35 31 150 9 48 -38 33 55 149 16 34 -38 36 22 -0.18
149 49 5 -39 5 5 11 31 33.5 46 340 -29 149 57 32 -39 4 42 149 40 39 -39 5 28 150 15 55 -39 3 52 149 22 18 -39 6 19 -0.18
149 55 14 -39 35 16 11 31 39.4 46 340 -29 150 3 44 -39 34 53 149 46 44 -39 35 40 150 22 16 -39 34 3 149 28 15 -39 36 31 -0.18
150 1 37 -40 5 42 11 31 45.3 45 340 -29 150 10 11 -40 5 19 149 53 3 -40 6 6 150 28 51 -40 4 28 149 34 25 -40 6 57 -0.18
150 8 14 -40 36 24 11 31 51.1 45 340 -28 150 16 52 -40 36 0 149 59 36 -40 36 47 150 35 41 -40 35 9 149 40 49 -40 37 39 -0.18
150 15 6 -41 7 20 11 31 57.0 44 340 -28 150 23 49 -41 6 57 150 6 24 -41 7 44 150 42 47 -41 6 5 149 47 28 -41 8 36 -0.18
150 22 15 -41 38 33 11 32 2.8 44 340 -28 150 31 1 -41 38 10 150 13 28 -41 38 57 150 50 9 -41 37 18 149 54 23 -41 39 50 -0.18
150 29 40 -42 10 3 11 32 8.7 43 340 -27 150 38 31 -42 9 39 150 20 49 -42 10 27 150 57 49 -42 8 48 150 1 34 -42 11 20 -0.18
150 37 24 -42 41 51 11 32 14.5 43 340 -27 150 46 20 -42 41 27 150 28 28 -42 42 15 151 5 48 -42 40 35 150 9 2 -42 43 8 -0.18
150 45 26 -43 13 57 11 32 20.4 42 340 -26 150 54 27 -43 13 32 150 36 25 -43 14 21 151 14 5 -43 12 40 150 16 49 -43 15 14 -0.18
150 53 48 -43 46 21 11 32 26.3 42 340 -26 151 2 54 -43 45 57 150 44 42 -43 46 46 151 22 44 -43 45 4 150 24 55 -43 47 39 -0.18
151 2 32 -44 19 5 11 32 32.1 41 340 -26 151 11 43 -44 18 41 150 53 21 -44 19 30 151 31 44 -44 17 48 150 33 22 -44 20 24 -0.18
151 11 38 -44 52 10 11 32 38.0 40 340 -25 151 20 54 -44 51 45 151 2 21 -44 52 35 151 41 8 -44 50 52 150 42 10 -44 53 29 -0.18
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