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Updated: 2021 Jul 15, 17:33 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 Aug 13 UT, the 60 km diameter asteroid (671) Carnegia will occult a 12.4 mag star in the constellation Scorpius for observers along a path across Tasmania, Victoria, New South Wales and Queensland.
In the case of an occultation, the combined light of the asteroid and the star will drop by 3.49 mag to 15.89 mag (the magnitude of the asteroid) for at most 13.7 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 UCAC4 287-109622 by 671 Carnegia on 2021 Aug 13
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
146 53 16 -45 0 41 13 1 59.3 51 271 -56 146 24 5 -44 59 59 147 22 37 -45 1 16 146 8 24 -44 59 33 147 38 30 -45 1 31 -0.81
146 52 14 -44 41 6 13 2 7.6 51 271 -56 146 23 12 -44 40 24 147 21 25 -44 41 41 146 7 37 -44 39 59 147 37 13 -44 41 56 -0.81
146 51 19 -44 21 31 13 2 15.9 51 270 -56 146 22 26 -44 20 50 147 20 20 -44 22 6 146 6 56 -44 20 24 147 36 2 -44 22 21 -0.81
146 50 30 -44 1 57 13 2 24.3 51 270 -56 146 21 47 -44 1 15 147 19 22 -44 2 31 146 6 22 -44 0 50 147 34 59 -44 2 46 -0.81
146 49 48 -43 42 22 13 2 32.6 51 269 -57 146 21 14 -43 41 41 147 18 31 -43 42 55 146 5 54 -43 41 16 147 34 3 -43 43 10 -0.81
146 49 12 -43 22 47 13 2 40.9 51 269 -57 146 20 48 -43 22 6 147 17 46 -43 23 20 146 5 33 -43 21 42 147 33 13 -43 23 35 -0.82
146 48 44 -43 3 12 13 2 49.3 51 269 -57 146 20 28 -43 2 32 147 17 8 -43 3 45 146 5 17 -43 2 7 147 32 31 -43 3 59 -0.82
146 48 21 -42 43 36 13 2 57.6 51 268 -58 146 20 14 -42 42 57 147 16 37 -42 44 9 146 5 8 -42 42 32 147 31 55 -42 44 23 -0.82
146 48 5 -42 24 1 13 3 5.9 51 268 -58 146 20 6 -42 23 21 147 16 12 -42 24 33 146 5 5 -42 22 57 147 31 26 -42 24 47 -0.82
146 47 55 -42 4 25 13 3 14.3 51 267 -58 146 20 4 -42 3 46 147 15 54 -42 4 56 146 5 7 -42 3 22 147 31 3 -42 5 10 -0.82
146 47 51 -41 44 49 13 3 22.6 51 267 -58 146 20 9 -41 44 10 147 15 42 -41 45 20 146 5 16 -41 43 47 147 30 47 -41 45 34 -0.82
146 47 53 -41 25 12 13 3 30.9 51 266 -59 146 20 19 -41 24 34 147 15 37 -41 25 43 146 5 31 -41 24 11 147 30 37 -41 25 56 0.82
146 48 2 -41 5 35 13 3 39.3 51 266 -59 146 20 35 -41 4 58 147 15 37 -41 6 5 146 5 51 -41 4 35 147 30 33 -41 6 18 0.82
146 48 16 -40 45 57 13 3 47.6 51 266 -59 146 20 57 -40 45 21 147 15 44 -40 46 27 146 6 17 -40 44 58 147 30 36 -40 46 40 0.82
146 48 36 -40 26 19 13 3 55.9 50 265 -59 146 21 25 -40 25 43 147 15 57 -40 26 48 146 6 49 -40 25 21 147 30 44 -40 27 1 0.82
146 49 2 -40 6 41 13 4 4.3 50 265 -60 146 21 58 -40 6 5 147 16 15 -40 7 9 146 7 26 -40 5 44 147 30 59 -40 7 21 0.82
146 49 34 -39 47 1 13 4 12.6 50 264 -60 146 22 37 -39 46 27 147 16 40 -39 47 29 146 8 9 -39 46 5 147 31 20 -39 47 41 0.82
146 50 12 -39 27 21 13 4 20.9 50 264 -60 146 23 22 -39 26 48 147 17 11 -39 27 49 146 8 57 -39 26 26 147 31 47 -39 28 0 0.82
146 50 56 -39 7 41 13 4 29.3 50 264 -61 146 24 12 -39 7 8 147 17 48 -39 8 7 146 9 51 -39 6 47 147 32 20 -39 8 19 0.83
146 51 45 -38 47 59 13 4 37.6 50 263 -61 146 25 8 -38 47 27 147 18 30 -38 48 25 146 10 51 -38 47 7 147 32 59 -38 48 36 0.83
146 52 39 -38 28 17 13 4 46.0 50 263 -61 146 26 9 -38 27 46 147 19 18 -38 28 42 146 11 55 -38 27 26 147 33 43 -38 28 53 0.83
146 53 40 -38 8 34 13 4 54.3 50 262 -61 146 27 16 -38 8 3 147 20 12 -38 8 58 146 13 6 -38 7 44 147 34 34 -38 9 9 0.83
146 54 46 -37 48 50 13 5 2.6 50 262 -62 146 28 28 -37 48 20 147 21 12 -37 49 14 146 14 21 -37 48 1 147 35 30 -37 49 24 0.83
146 55 57 -37 29 5 13 5 11.0 50 261 -62 146 29 46 -37 28 36 147 22 17 -37 29 28 146 15 42 -37 28 17 147 36 32 -37 29 37 0.83
146 57 14 -37 9 20 13 5 19.3 50 261 -62 146 31 9 -37 8 51 147 23 28 -37 9 41 146 17 8 -37 8 33 147 37 40 -37 9 50 0.83
146 58 37 -36 49 33 13 5 27.6 50 261 -63 146 32 37 -36 49 5 147 24 45 -36 49 53 146 18 40 -36 48 47 147 38 53 -36 50 2 0.83
147 0 5 -36 29 44 13 5 36.0 49 260 -63 146 34 11 -36 29 18 147 26 7 -36 30 4 146 20 16 -36 29 1 147 40 13 -36 30 12 0.83
147 1 38 -36 9 55 13 5 44.3 49 260 -63 146 35 50 -36 9 29 147 27 35 -36 10 14 146 21 58 -36 9 13 147 41 37 -36 10 22 0.83
147 3 17 -35 50 5 13 5 52.6 49 259 -63 146 37 34 -35 49 40 147 29 8 -35 50 23 146 23 46 -35 49 24 147 43 8 -35 50 30 0.83
147 5 1 -35 30 13 13 6 1.0 49 259 -64 146 39 23 -35 29 49 147 30 47 -35 30 30 146 25 38 -35 29 33 147 44 44 -35 30 37 0.83
147 6 51 -35 10 20 13 6 9.3 49 259 -64 146 41 18 -35 9 57 147 32 32 -35 10 36 146 27 36 -35 9 42 147 46 26 -35 10 42 0.84
147 8 46 -34 50 25 13 6 17.6 49 258 -64 146 43 19 -34 50 4 147 34 22 -34 50 41 146 29 39 -34 49 49 147 48 13 -34 50 46 0.84
147 10 47 -34 30 29 13 6 26.0 49 258 -65 146 45 24 -34 30 9 147 36 17 -34 30 44 146 31 47 -34 29 55 147 50 6 -34 30 48 0.84
147 12 53 -34 10 32 13 6 34.3 49 257 -65 146 47 35 -34 10 12 147 38 19 -34 10 45 146 34 0 -34 9 59 147 52 4 -34 10 49 0.84
147 15 4 -33 50 33 13 6 42.6 49 257 -65 146 49 51 -33 50 14 147 40 25 -33 50 45 146 36 18 -33 50 2 147 54 9 -33 50 49 0.84
147 17 21 -33 30 32 13 6 51.0 48 257 -65 146 52 12 -33 30 15 147 42 37 -33 30 43 146 38 42 -33 30 3 147 56 18 -33 30 46 0.84
147 19 43 -33 10 30 13 6 59.3 48 256 -66 146 54 39 -33 10 14 147 44 55 -33 10 40 146 41 11 -33 10 2 147 58 34 -33 10 42 0.84
147 22 10 -32 50 26 13 7 7.6 48 256 -66 146 57 10 -32 50 11 147 47 18 -32 50 35 146 43 45 -32 50 0 148 0 55 -32 50 36 0.84
147 24 43 -32 30 20 13 7 16.0 48 256 -66 146 59 48 -32 30 6 147 49 47 -32 30 28 146 46 25 -32 29 56 148 3 21 -32 30 29 0.84
147 27 22 -32 10 13 13 7 24.3 48 255 -67 147 2 30 -32 10 0 147 52 22 -32 10 19 146 49 9 -32 9 50 148 5 53 -32 10 19 0.84
147 30 6 -31 50 3 13 7 32.6 48 255 -67 147 5 18 -31 49 52 147 55 2 -31 50 8 146 51 59 -31 49 43 148 8 31 -31 50 7 0.84
147 32 55 -31 29 51 13 7 41.0 48 254 -67 147 8 11 -31 29 41 147 57 47 -31 29 55 146 54 55 -31 29 33 148 11 15 -31 29 54 0.85
147 35 50 -31 9 38 13 7 49.3 47 254 -67 147 11 10 -31 9 29 148 0 39 -31 9 40 146 57 55 -31 9 21 148 14 4 -31 9 38 0.85
147 38 51 -30 49 22 13 7 57.6 47 254 -68 147 14 14 -30 49 14 148 3 35 -30 49 22 147 1 1 -30 49 8 148 16 59 -30 49 20 0.85
147 41 57 -30 29 4 13 8 6.0 47 253 -68 147 17 24 -30 28 58 148 6 38 -30 29 3 147 4 13 -30 28 52 148 20 0 -30 29 0 0.85
147 45 8 -30 8 43 13 8 14.3 47 253 -68 147 20 39 -30 8 39 148 9 46 -30 8 41 147 7 30 -30 8 33 148 23 6 -30 8 37 0.85
147 48 26 -29 48 21 13 8 22.6 47 253 -69 147 23 59 -29 48 17 148 13 0 -29 48 17 147 10 52 -29 48 13 148 26 19 -29 48 12 0.85
147 51 49 -29 27 55 13 8 31.0 47 252 -69 147 27 25 -29 27 54 148 16 20 -29 27 50 147 14 20 -29 27 50 148 29 37 -29 27 45 0.85
147 55 17 -29 7 28 13 8 39.3 46 252 -69 147 30 57 -29 7 28 148 19 46 -29 7 21 147 17 53 -29 7 25 148 33 1 -29 7 15 0.85
147 58 52 -28 46 58 13 8 47.6 46 251 -69 147 34 34 -28 46 59 148 23 17 -28 46 49 147 21 32 -28 46 57 148 36 31 -28 46 42 0.85
148 2 32 -28 26 25 13 8 56.0 46 251 -70 147 38 17 -28 26 28 148 26 55 -28 26 15 147 25 16 -28 26 27 148 40 7 -28 26 7 0.85
148 6 18 -28 5 49 13 9 4.3 46 251 -70 147 42 6 -28 5 54 148 30 38 -28 5 37 147 29 7 -28 5 54 148 43 49 -28 5 28 0.86
148 10 10 -27 45 11 13 9 12.6 46 250 -70 147 46 0 -27 45 17 148 34 28 -27 44 57 147 33 3 -27 45 18 148 47 37 -27 44 47 0.86
148 14 8 -27 24 29 13 9 21.0 45 250 -71 147 50 1 -27 24 37 148 38 24 -27 24 14 147 37 4 -27 24 39 148 51 32 -27 24 3 0.86
148 18 12 -27 3 45 13 9 29.3 45 250 -71 147 54 7 -27 3 55 148 42 25 -27 3 28 147 41 12 -27 3 57 148 55 32 -27 3 16 0.86
148 22 22 -26 42 57 13 9 37.7 45 249 -71 147 58 19 -26 43 9 148 46 33 -26 42 39 147 45 25 -26 43 12 148 59 39 -26 42 26 0.86
148 26 38 -26 22 7 13 9 46.0 45 249 -71 148 2 38 -26 22 20 148 50 48 -26 21 46 147 49 45 -26 22 25 149 3 52 -26 21 32 0.86
148 31 1 -26 1 13 13 9 54.3 45 249 -72 148 7 2 -26 1 28 148 55 8 -26 0 50 147 54 10 -26 1 34 149 8 12 -26 0 35 0.86
148 35 30 -25 40 15 13 10 2.7 44 248 -72 148 11 33 -25 40 33 148 59 35 -25 39 51 147 58 42 -25 40 39 149 12 38 -25 39 35 0.86
148 40 5 -25 19 15 13 10 11.0 44 248 -72 148 16 10 -25 19 34 149 4 9 -25 18 48 148 3 20 -25 19 42 149 17 11 -25 18 31 0.86
148 44 47 -24 58 10 13 10 19.3 44 248 -73 148 20 53 -24 58 32 149 8 49 -24 57 42 148 8 4 -24 58 40 149 21 50 -24 57 23 0.86
148 49 35 -24 37 2 13 10 27.7 44 247 -73 148 25 43 -24 37 26 149 13 36 -24 36 32 148 12 54 -24 37 35 149 26 36 -24 36 12 0.87
148 54 30 -24 15 50 13 10 36.0 43 247 -73 148 30 39 -24 16 16 149 18 30 -24 15 17 148 17 51 -24 16 27 149 31 29 -24 14 57 0.87
148 59 32 -23 54 35 13 10 44.3 43 247 -73 148 35 42 -23 55 2 149 23 30 -23 53 59 148 22 55 -23 55 14 149 36 29 -23 53 38 0.87
149 4 40 -23 33 15 13 10 52.7 43 246 -74 148 40 52 -23 33 45 149 28 38 -23 32 37 148 28 5 -23 33 58 149 41 37 -23 32 14 0.87
149 9 56 -23 11 51 13 11 1.0 43 246 -74 148 46 8 -23 12 23 149 33 53 -23 11 11 148 33 22 -23 12 38 149 46 51 -23 10 47 0.87
149 15 19 -22 50 23 13 11 9.3 42 246 -74 148 51 31 -22 50 57 149 39 15 -22 49 41 148 38 46 -22 51 13 149 52 13 -22 49 15 0.87
149 20 49 -22 28 50 13 11 17.7 42 246 -74 148 57 2 -22 29 27 149 44 44 -22 28 6 148 44 17 -22 29 44 149 57 42 -22 27 38 0.87
149 26 26 -22 7 13 13 11 26.0 42 245 -75 149 2 40 -22 7 53 149 50 21 -22 6 26 148 49 55 -22 8 11 150 3 18 -22 5 57 0.87
149 32 11 -21 45 31 13 11 34.3 42 245 -75 149 8 25 -21 46 14 149 56 5 -21 44 42 148 55 40 -21 46 33 150 9 3 -21 44 12 0.87
149 38 3 -21 23 45 13 11 42.7 41 245 -75 149 14 17 -21 24 30 150 1 58 -21 22 53 149 1 33 -21 24 51 150 14 55 -21 22 21 0.88
149 44 3 -21 1 54 13 11 51.0 41 244 -76 149 20 17 -21 2 41 150 7 58 -21 0 58 149 7 33 -21 3 4 150 20 55 -21 0 25 0.88
149 50 11 -20 39 57 13 11 59.3 41 244 -76 149 26 25 -20 40 47 150 14 6 -20 38 59 149 13 41 -20 41 11 150 27 3 -20 38 25 0.88
149 56 27 -20 17 55 13 12 7.7 41 244 -76 149 32 41 -20 18 48 150 20 23 -20 16 54 149 19 57 -20 19 14 150 33 20 -20 16 18 0.88
150 2 52 -19 55 48 13 12 16.0 40 244 -76 149 39 5 -19 56 44 150 26 48 -19 54 44 149 26 20 -19 57 11 150 39 46 -19 54 7 0.88
150 9 24 -19 33 36 13 12 24.3 40 243 -77 149 45 37 -19 34 35 150 33 21 -19 32 29 149 32 52 -19 35 3 150 46 19 -19 31 49 0.88
150 16 6 -19 11 17 13 12 32.7 40 243 -77 149 52 18 -19 12 19 150 40 3 -19 10 7 149 39 33 -19 12 50 150 53 2 -19 9 26 0.88
150 22 56 -18 48 53 13 12 41.0 39 243 -77 149 59 7 -18 49 58 150 46 55 -18 47 40 149 46 21 -18 50 30 150 59 54 -18 46 57 0.88
150 29 55 -18 26 23 13 12 49.3 39 242 -77 150 6 6 -18 27 31 150 53 55 -18 25 6 149 53 19 -18 28 5 151 6 56 -18 24 21 0.88
150 37 4 -18 3 46 13 12 57.7 39 242 -78 150 13 13 -18 4 58 151 1 5 -18 2 26 150 0 25 -18 5 33 151 14 6 -18 1 39 0.88
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