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Updated: 2022 JUN 13, 20:38 UT
Event Rank : 96
(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 Jul 18 UT, the 187.4 km diameter asteroid (41) Daphne will occult a 11.8 mag star in the constellation Ophiuchus for observers along a broad path across Western Australia from Esperance to Broome.
In the case of an occultation, the combined light of the asteroid and the star will drop by 0.35 mag to 10.79 mag (the magnitude of the asteroid) for at most 28.590 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, inparticular 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 467-057444 by 41 Daphne #1 on 2022 Jul 18
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
121 46 46 - 1 17 35 14 11 15.2 73 285 -57 122 39 39 - 1 17 51 120 54 8 - 1 17 22 123 4 56 - 1 17 59 120 29 8 - 1 17 17 0.31
121 45 39 - 1 40 1 14 11 21.5 73 286 -57 122 38 33 - 1 40 17 120 53 0 - 1 39 48 123 3 50 - 1 40 26 120 28 0 - 1 39 43 0.31
121 44 35 - 2 2 28 14 11 27.8 72 287 -58 122 37 29 - 2 2 44 120 51 55 - 2 2 15 123 2 47 - 2 2 53 120 26 54 - 2 2 10 0.31
121 43 33 - 2 24 56 14 11 34.1 72 288 -58 122 36 29 - 2 25 12 120 50 52 - 2 24 43 123 1 47 - 2 25 21 120 25 51 - 2 24 38 0.31
121 42 34 - 2 47 25 14 11 40.3 72 290 -58 122 35 31 - 2 47 41 120 49 52 - 2 47 12 123 0 50 - 2 47 50 120 24 51 - 2 47 7 0.31
121 41 38 - 3 9 55 14 11 46.6 72 291 -58 122 34 35 - 3 10 11 120 48 54 - 3 9 42 122 59 55 - 3 10 20 120 23 52 - 3 9 37 0.31
121 40 44 - 3 32 26 14 11 52.9 72 292 -59 122 33 43 - 3 32 42 120 47 59 - 3 32 13 122 59 3 - 3 32 50 120 22 57 - 3 32 7 0.31
121 39 53 - 3 54 58 14 11 59.2 72 293 -59 122 32 54 - 3 55 14 120 47 7 - 3 54 44 122 58 15 - 3 55 22 120 22 3 - 3 54 39 0.31
121 39 5 - 4 17 31 14 12 5.5 72 294 -59 122 32 7 - 4 17 47 120 46 17 - 4 17 17 122 57 29 - 4 17 55 120 21 12 - 4 17 12 0.31
121 38 19 - 4 40 5 14 12 11.8 71 295 -59 122 31 24 - 4 40 21 120 45 29 - 4 39 52 122 56 47 - 4 40 30 120 20 24 - 4 39 46 0.31
121 37 36 - 5 2 40 14 12 18.1 71 296 -59 122 30 43 - 5 2 56 120 44 45 - 5 2 27 122 56 7 - 5 3 5 120 19 39 - 5 2 22 0.31
121 36 56 - 5 25 17 14 12 24.3 71 297 -60 122 30 5 - 5 25 33 120 44 3 - 5 25 4 122 55 30 - 5 25 42 120 18 55 - 5 24 58 0.31
121 36 19 - 5 47 55 14 12 30.6 71 298 -60 122 29 31 - 5 48 11 120 43 23 - 5 47 42 122 54 57 - 5 48 20 120 18 15 - 5 47 36 0.31
121 35 45 - 6 10 35 14 12 36.9 71 299 -60 122 28 59 - 6 10 51 120 42 46 - 6 10 21 122 54 26 - 6 11 0 120 17 37 - 6 10 16 0.31
121 35 14 - 6 33 16 14 12 43.2 70 299 -60 122 28 30 - 6 33 32 120 42 12 - 6 33 2 122 53 59 - 6 33 41 120 17 2 - 6 32 57 0.31
121 34 45 - 6 55 58 14 12 49.5 70 300 -61 122 28 4 - 6 56 15 120 41 41 - 6 55 45 122 53 34 - 6 56 24 120 16 29 - 6 55 39 0.31
121 34 19 - 7 18 43 14 12 55.8 70 301 -61 122 27 42 - 7 18 59 120 41 12 - 7 18 29 122 53 13 - 7 19 8 120 15 59 - 7 18 23 0.31
121 33 57 - 7 41 28 14 13 2.1 70 302 -61 122 27 22 - 7 41 45 120 40 47 - 7 41 15 122 52 55 - 7 41 54 120 15 32 - 7 41 9 0.31
121 33 37 - 8 4 16 14 13 8.3 70 303 -61 122 27 6 - 8 4 33 120 40 23 - 8 4 2 122 52 40 - 8 4 42 120 15 7 - 8 3 57 0.31
121 33 20 - 8 27 6 14 13 14.6 69 304 -61 122 26 52 - 8 27 22 120 40 3 - 8 26 52 122 52 29 - 8 27 32 120 14 45 - 8 26 46 0.31
121 33 6 - 8 49 57 14 13 20.9 69 305 -62 122 26 42 - 8 50 14 120 39 46 - 8 49 43 122 52 20 - 8 50 23 120 14 26 - 8 49 37 0.32
121 32 56 - 9 12 50 14 13 27.2 69 305 -62 122 26 36 - 9 13 7 120 39 31 - 9 12 36 122 52 15 - 9 13 17 120 14 10 - 9 12 31 0.32
121 32 48 - 9 35 46 14 13 33.5 69 306 -62 122 26 32 - 9 36 3 120 39 20 - 9 35 31 122 52 14 - 9 36 12 120 13 57 - 9 35 26 0.32
121 32 44 - 9 58 43 14 13 39.8 68 307 -62 122 26 32 - 9 59 0 120 39 11 - 9 58 29 122 52 16 - 9 59 10 120 13 46 - 9 58 23 0.32
121 32 42 -10 21 43 14 13 46.0 68 307 -62 122 26 35 -10 22 0 120 39 6 -10 21 28 122 52 21 -10 22 9 120 13 39 -10 21 23 0.32
121 32 44 -10 44 44 14 13 52.3 68 308 -62 122 26 41 -10 45 2 120 39 3 -10 44 30 122 52 29 -10 45 11 120 13 34 -10 44 24 -0.32
121 32 50 -11 7 49 14 13 58.6 68 309 -63 122 26 51 -11 8 6 120 39 4 -11 7 34 122 52 42 -11 8 16 120 13 32 -11 7 28 -0.32
121 32 58 -11 30 55 14 14 4.9 67 310 -63 122 27 5 -11 31 13 120 39 7 -11 30 40 122 52 57 -11 31 22 120 13 34 -11 30 35 -0.32
121 33 10 -11 54 4 14 14 11.2 67 310 -63 122 27 22 -11 54 22 120 39 14 -11 53 49 122 53 17 -11 54 31 120 13 38 -11 53 43 -0.32
121 33 25 -12 17 16 14 14 17.5 67 311 -63 122 27 42 -12 17 33 120 39 24 -12 17 1 122 53 40 -12 17 43 120 13 46 -12 16 55 -0.32
121 33 44 -12 40 30 14 14 23.8 67 311 -63 122 28 6 -12 40 48 120 39 37 -12 40 15 122 54 7 -12 40 57 120 13 56 -12 40 9 -0.32
121 34 6 -13 3 46 14 14 30.0 66 312 -64 122 28 34 -13 4 5 120 39 54 -13 3 31 122 54 37 -13 4 14 120 14 10 -13 3 25 -0.32
121 34 31 -13 27 6 14 14 36.3 66 313 -64 122 29 5 -13 27 24 120 40 14 -13 26 51 122 55 12 -13 27 34 120 14 27 -13 26 44 -0.32
121 35 1 -13 50 28 14 14 42.6 66 313 -64 122 29 41 -13 50 47 120 40 37 -13 50 13 122 55 50 -13 50 57 120 14 48 -13 50 7 -0.32
121 35 34 -14 13 54 14 14 48.9 65 314 -64 122 30 20 -14 14 12 120 41 4 -14 13 38 122 56 32 -14 14 22 120 15 12 -14 13 32 -0.32
121 36 10 -14 37 22 14 14 55.2 65 314 -64 122 31 3 -14 37 41 120 41 34 -14 37 6 122 57 18 -14 37 51 120 15 39 -14 37 0 -0.32
121 36 51 -15 0 53 14 15 1.5 65 315 -64 122 31 50 -15 1 12 120 42 8 -15 0 37 122 58 9 -15 1 22 120 16 10 -15 0 31 -0.32
121 37 35 -15 24 28 14 15 7.8 65 315 -65 122 32 41 -15 24 47 120 42 45 -15 24 12 122 59 3 -15 24 57 120 16 44 -15 24 5 -0.32
121 38 23 -15 48 6 14 15 14.0 64 316 -65 122 33 37 -15 48 25 120 43 27 -15 47 50 123 0 2 -15 48 35 120 17 22 -15 47 43 -0.32
121 39 15 -16 11 47 14 15 20.3 64 316 -65 122 34 36 -16 12 6 120 44 11 -16 11 31 123 1 5 -16 12 17 120 18 3 -16 11 24 -0.32
121 40 11 -16 35 32 14 15 26.6 64 317 -65 122 35 40 -16 35 51 120 45 0 -16 35 15 123 2 12 -16 36 2 120 18 48 -16 35 8 -0.33
121 41 12 -16 59 20 14 15 32.9 63 317 -65 122 36 48 -16 59 40 120 45 53 -16 59 3 123 3 24 -16 59 50 120 19 37 -16 58 56 -0.33
121 42 16 -17 23 12 14 15 39.2 63 318 -65 122 38 1 -17 23 32 120 46 49 -17 22 55 123 4 41 -17 23 43 120 20 30 -17 22 48 -0.33
121 43 25 -17 47 7 14 15 45.5 63 318 -65 122 39 18 -17 47 28 120 47 50 -17 46 50 123 6 2 -17 47 38 120 21 27 -17 46 43 -0.33
121 44 38 -18 11 7 14 15 51.8 62 319 -65 122 40 40 -18 11 27 120 48 55 -18 10 49 123 7 28 -18 11 38 120 22 28 -18 10 42 -0.33
121 45 56 -18 35 10 14 15 58.0 62 319 -66 122 42 6 -18 35 31 120 50 4 -18 34 52 123 8 59 -18 35 42 120 23 33 -18 34 45 -0.33
121 47 18 -18 59 17 14 16 4.3 62 319 -66 122 43 38 -18 59 38 120 51 17 -18 59 0 123 10 35 -18 59 49 120 24 42 -18 58 52 -0.33
121 48 45 -19 23 29 14 16 10.6 61 320 -66 122 45 14 -19 23 50 120 52 35 -19 23 11 123 12 15 -19 24 1 120 25 56 -19 23 4 -0.33
121 50 17 -19 47 45 14 16 16.9 61 320 -66 122 46 55 -19 48 6 120 53 57 -19 47 26 123 14 1 -19 48 18 120 27 13 -19 47 19 -0.33
121 51 53 -20 12 5 14 16 23.2 61 321 -66 122 48 42 -20 12 26 120 55 24 -20 11 46 123 15 53 -20 12 38 120 28 36 -20 11 39 -0.33
121 53 35 -20 36 29 14 16 29.5 60 321 -66 122 50 33 -20 36 51 120 56 56 -20 36 11 123 17 49 -20 37 3 120 30 3 -20 36 3 -0.33
121 55 22 -21 0 58 14 16 35.7 60 321 -66 122 52 31 -21 1 21 120 58 32 -21 0 40 123 19 51 -21 1 33 120 31 34 -21 0 32 -0.33
121 57 14 -21 25 32 14 16 42.0 60 322 -66 122 54 33 -21 25 55 121 0 14 -21 25 13 123 21 59 -21 26 7 120 33 11 -21 25 5 -0.33
121 59 11 -21 50 11 14 16 48.3 59 322 -66 122 56 42 -21 50 34 121 2 0 -21 49 52 123 24 13 -21 50 46 120 34 52 -21 49 44 -0.33
122 1 14 -22 14 55 14 16 54.6 59 322 -66 122 58 56 -22 15 18 121 3 51 -22 14 35 123 26 33 -22 15 30 120 36 38 -22 14 27 -0.33
122 3 22 -22 39 44 14 17 0.9 59 323 -66 123 1 16 -22 40 7 121 5 48 -22 39 24 123 28 58 -22 40 19 120 38 30 -22 39 16 -0.33
122 5 36 -23 4 38 14 17 7.2 58 323 -67 123 3 42 -23 5 1 121 7 51 -23 4 17 123 31 30 -23 5 14 120 40 26 -23 4 9 -0.33
122 7 56 -23 29 37 14 17 13.5 58 323 -67 123 6 14 -23 30 1 121 9 58 -23 29 16 123 34 9 -23 30 14 120 42 28 -23 29 8 -0.33
122 10 22 -23 54 42 14 17 19.7 57 324 -67 123 8 53 -23 55 6 121 12 12 -23 54 21 123 36 54 -23 55 19 120 44 36 -23 54 12 -0.33
122 12 54 -24 19 52 14 17 26.0 57 324 -67 123 11 38 -24 20 17 121 14 31 -24 19 31 123 39 45 -24 20 30 120 46 49 -24 19 22 -0.33
122 15 33 -24 45 8 14 17 32.3 57 324 -67 123 14 31 -24 45 34 121 16 57 -24 44 47 123 42 44 -24 45 47 120 49 9 -24 44 38 -0.33
122 18 18 -25 10 31 14 17 38.6 56 324 -67 123 17 30 -25 10 56 121 19 29 -25 10 9 123 45 50 -25 11 10 120 51 34 -25 10 0 -0.33
122 21 10 -25 35 59 14 17 44.9 56 325 -67 123 20 36 -25 36 25 121 22 7 -25 35 37 123 49 3 -25 36 38 120 54 6 -25 35 28 -0.33
122 24 9 -26 1 33 14 17 51.2 56 325 -67 123 23 50 -26 2 0 121 24 51 -26 1 11 123 52 24 -26 2 14 120 56 43 -26 1 2 -0.33
122 27 15 -26 27 14 14 17 57.5 55 325 -67 123 27 11 -26 27 41 121 27 43 -26 26 51 123 55 52 -26 27 55 120 59 28 -26 26 42 -0.34
122 30 29 -26 53 2 14 18 3.7 55 325 -67 123 30 40 -26 53 29 121 30 41 -26 52 39 123 59 29 -26 53 43 121 2 19 -26 52 29 -0.34
122 33 50 -27 18 56 14 18 10.0 54 326 -67 123 34 17 -27 19 24 121 33 46 -27 18 32 124 3 14 -27 19 38 121 5 17 -27 18 22 -0.34
122 37 19 -27 44 57 14 18 16.3 54 326 -67 123 38 2 -27 45 25 121 36 59 -27 44 33 124 7 7 -27 45 40 121 8 22 -27 44 23 -0.34
122 40 56 -28 11 5 14 18 22.6 54 326 -67 123 41 56 -28 11 34 121 40 20 -28 10 41 124 11 9 -28 11 49 121 11 35 -28 10 31 -0.34
122 44 41 -28 37 21 14 18 28.9 53 326 -67 123 45 59 -28 37 50 121 43 48 -28 36 56 124 15 20 -28 38 5 121 14 55 -28 36 46 -0.34
122 48 35 -29 3 44 14 18 35.2 53 326 -67 123 50 11 -29 4 14 121 47 24 -29 3 19 124 19 41 -29 4 29 121 18 24 -29 3 8 -0.34
122 52 38 -29 30 15 14 18 41.5 52 327 -67 123 54 32 -29 30 45 121 51 9 -29 29 49 124 24 11 -29 31 1 121 22 0 -29 29 38 -0.34
122 56 50 -29 56 53 14 18 47.7 52 327 -67 123 59 3 -29 57 24 121 55 3 -29 56 27 124 28 51 -29 57 40 121 25 45 -29 56 16 -0.34
123 1 12 -30 23 40 14 18 54.0 51 327 -67 124 3 44 -30 24 11 121 59 5 -30 23 13 124 33 42 -30 24 28 121 29 38 -30 23 2 -0.34
123 5 43 -30 50 36 14 19 0.3 51 327 -66 124 8 36 -30 51 7 122 3 17 -30 50 8 124 38 43 -30 51 24 121 33 41 -30 49 57 -0.34
123 10 25 -31 17 39 14 19 6.6 51 327 -66 124 13 38 -31 18 12 122 7 38 -31 17 11 124 43 56 -31 18 29 121 37 52 -31 17 0 -0.34
123 15 17 -31 44 52 14 19 12.9 50 327 -66 124 18 52 -31 45 25 122 12 9 -31 44 23 124 49 20 -31 45 42 121 42 14 -31 44 11 -0.34
123 20 20 -32 12 14 14 19 19.2 50 327 -66 124 24 17 -32 12 47 122 16 51 -32 11 45 124 54 56 -32 13 5 121 46 45 -32 11 32 -0.34
123 25 35 -32 39 45 14 19 25.4 49 328 -66 124 29 55 -32 40 19 122 21 43 -32 39 15 125 0 44 -32 40 37 121 51 27 -32 39 2 -0.34
123 31 1 -33 7 25 14 19 31.7 49 328 -66 124 35 45 -33 8 0 122 26 47 -33 6 55 125 6 46 -33 8 19 121 56 20 -33 6 42 -0.34
123 36 40 -33 35 16 14 19 38.0 48 328 -66 124 41 48 -33 35 52 122 32 2 -33 34 45 125 13 1 -33 36 10 122 1 24 -33 34 32 -0.34
123 42 31 -34 3 17 14 19 44.3 48 328 -66 124 48 4 -34 3 53 122 37 29 -34 2 45 125 19 29 -34 4 12 122 6 39 -34 2 32 -0.34
123 48 36 -34 31 28 14 19 50.6 48 328 -66 124 54 35 -34 32 6 122 43 8 -34 30 56 125 26 12 -34 32 25 122 12 7 -34 30 42 -0.34
123 54 55 -34 59 51 14 19 56.9 47 328 -66 125 1 20 -35 0 29 122 49 1 -34 59 17 125 33 11 -35 0 48 122 17 47 -34 59 3 -0.34
124 1 28 -35 28 24 14 20 3.2 47 328 -65 125 8 21 -35 29 3 122 55 7 -35 27 50 125 40 25 -35 29 23 122 23 41 -35 27 35 -0.34
124 8 16 -35 57 9 14 20 9.4 46 328 -65 125 15 38 -35 57 49 123 1 27 -35 56 34 125 47 56 -35 58 9 122 29 48 -35 56 19 -0.34
124 15 20 -36 26 6 14 20 15.7 46 328 -65 125 23 11 -36 26 46 123 8 2 -36 25 30 125 55 43 -36 27 8 122 36 10 -36 25 15 -0.34
124 22 40 -36 55 15 14 20 22.0 45 328 -65 125 31 2 -36 55 56 123 14 52 -36 54 38 126 3 49 -36 56 18 122 42 46 -36 54 22 -0.34
124 30 17 -37 24 36 14 20 28.3 45 329 -65 125 39 11 -37 25 19 123 21 59 -37 23 59 126 12 14 -37 25 41 122 49 38 -37 23 43 -0.34
124 38 13 -37 54 11 14 20 34.6 44 329 -65 125 47 39 -37 54 55 123 29 22 -37 53 33 126 20 58 -37 55 18 122 56 47 -37 53 16 -0.34
124 46 27 -38 23 59 14 20 40.9 44 329 -64 125 56 28 -38 24 44 123 37 4 -38 23 20 126 30 4 -38 25 8 123 4 12 -38 23 3 -0.34
124 55 1 -38 54 2 14 20 47.2 43 329 -64 126 5 37 -38 54 48 123 45 3 -38 53 21 126 39 30 -38 55 12 123 11 56 -38 53 4 -0.34
Uncertainty in time = +/- 7 secs
Prediction of 2022 Jun 13.9
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