|
|
Updated: 2022 Mar 05, 20:32 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 Apr 29 UT, the 84 km diameter asteroid (318) Magdalena will occult a 12.0 mag star in the constellation Scutum for observers along a path across South Australia and Northern Territory, running from Port Lincoln to Cobourg Peninsula.
In the case of an occultation, the combined light of the asteroid and the star will drop by 3.3 mag to 15.22 mag (the magnitude of the asteroid) for at most 19.4 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 UCAC4 398-082227 by 318 Magdalena on 2022 Apr 29
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
135 56 19 -36 48 37 16 58 22.2 53 52 -54 135 23 38 -36 52 5 136 28 47 -36 45 6 135 8 48 -36 53 38 136 43 24 -36 43 29 -0.59
135 56 16 -36 25 37 16 58 31.3 53 52 -55 135 23 47 -36 29 5 136 28 34 -36 22 6 135 9 2 -36 30 38 136 43 6 -36 20 30 0.59
135 56 6 -36 2 41 16 58 40.3 54 52 -55 135 23 48 -36 6 9 136 28 12 -35 59 11 135 9 8 -36 7 41 136 42 39 -35 57 35 0.59
135 55 48 -35 39 49 16 58 49.4 54 53 -55 135 23 40 -35 43 16 136 27 44 -35 36 19 135 9 6 -35 44 49 136 42 6 -35 34 43 0.59
135 55 22 -35 17 1 16 58 58.4 54 53 -55 135 23 25 -35 20 28 136 27 7 -35 13 32 135 8 55 -35 22 0 136 41 25 -35 11 56 0.58
135 54 49 -34 54 17 16 59 7.5 54 54 -55 135 23 3 -34 57 44 136 26 24 -34 50 48 135 8 37 -34 59 16 136 40 37 -34 49 13 0.58
135 54 8 -34 31 37 16 59 16.5 55 54 -55 135 22 32 -34 35 3 136 25 34 -34 28 8 135 8 12 -34 36 35 136 39 42 -34 26 33 0.58
135 53 21 -34 9 0 16 59 25.6 55 54 -56 135 21 55 -34 12 26 136 24 36 -34 5 32 135 7 39 -34 13 58 136 38 40 -34 3 57 0.58
135 52 27 -33 46 27 16 59 34.6 55 55 -56 135 21 10 -33 49 52 136 23 32 -33 42 59 135 6 58 -33 51 24 136 37 32 -33 41 24 0.58
135 51 25 -33 23 58 16 59 43.7 55 55 -56 135 20 18 -33 27 22 136 22 22 -33 20 30 135 6 11 -33 28 54 136 36 18 -33 18 55 0.58
135 50 18 -33 1 32 16 59 52.7 56 56 -56 135 19 20 -33 4 56 136 21 5 -32 58 4 135 5 17 -33 6 27 136 34 57 -32 56 30 0.58
135 49 4 -32 39 9 17 0 1.8 56 56 -56 135 18 15 -32 42 33 136 19 42 -32 35 42 135 4 16 -32 44 4 136 33 30 -32 34 7 0.58
135 47 43 -32 16 49 17 0 10.8 56 57 -56 135 17 3 -32 20 13 136 18 13 -32 13 23 135 3 8 -32 21 44 136 31 57 -32 11 48 0.58
135 46 17 -31 54 33 17 0 19.9 56 57 -56 135 15 45 -31 57 56 136 16 38 -31 51 7 135 1 54 -31 59 27 136 30 18 -31 49 33 0.58
135 44 44 -31 32 19 17 0 28.9 56 57 -57 135 14 21 -31 35 42 136 14 57 -31 28 54 135 0 33 -31 37 13 136 28 34 -31 27 20 0.58
135 43 5 -31 10 9 17 0 38.0 57 58 -57 135 12 50 -31 13 31 136 13 11 -31 6 44 134 59 7 -31 15 2 136 26 43 -31 5 10 0.58
135 41 21 -30 48 2 17 0 47.0 57 58 -57 135 11 14 -30 51 24 136 11 18 -30 44 37 134 57 34 -30 52 54 136 24 47 -30 43 3 0.58
135 39 31 -30 25 57 17 0 56.1 57 59 -57 135 9 31 -30 29 19 136 9 20 -30 22 33 134 55 55 -30 30 49 136 22 46 -30 20 59 0.58
135 37 35 -30 3 55 17 1 5.1 57 59 -57 135 7 43 -30 7 17 136 7 17 -30 0 31 134 54 10 -30 8 47 136 20 39 -29 58 58 0.58
135 35 34 -29 41 56 17 1 14.2 57 60 -57 135 5 49 -29 45 17 136 5 8 -29 38 33 134 52 20 -29 46 47 136 18 27 -29 37 0 0.58
135 33 27 -29 20 0 17 1 23.2 58 60 -57 135 3 50 -29 23 21 136 2 54 -29 16 37 134 50 24 -29 24 50 136 16 10 -29 15 4 0.58
135 31 15 -28 58 6 17 1 32.3 58 61 -57 135 1 45 -29 1 27 136 0 35 -28 54 43 134 48 22 -29 2 56 136 13 48 -28 53 11 0.57
135 28 58 -28 36 15 17 1 41.4 58 61 -58 134 59 35 -28 39 35 135 58 11 -28 32 53 134 46 15 -28 41 4 136 11 21 -28 31 20 0.57
135 26 35 -28 14 26 17 1 50.4 58 62 -58 134 57 19 -28 17 46 135 55 42 -28 11 4 134 44 2 -28 19 15 136 8 49 -28 9 32 0.57
135 24 8 -27 52 40 17 1 59.5 58 62 -58 134 54 58 -27 55 59 135 53 8 -27 49 18 134 41 45 -27 57 28 136 6 12 -27 47 46 0.57
135 21 35 -27 30 56 17 2 8.5 58 63 -58 134 52 32 -27 34 15 135 50 29 -27 27 34 134 39 22 -27 35 44 136 3 30 -27 26 3 0.57
135 18 58 -27 9 14 17 2 17.6 59 63 -58 134 50 1 -27 12 33 135 47 45 -27 5 53 134 36 53 -27 14 1 136 0 43 -27 4 21 0.57
135 16 15 -26 47 34 17 2 26.6 59 64 -58 134 47 25 -26 50 53 135 44 57 -26 44 14 134 34 20 -26 52 21 135 57 52 -26 42 42 0.57
135 13 28 -26 25 57 17 2 35.7 59 64 -58 134 44 44 -26 29 15 135 42 4 -26 22 37 134 31 42 -26 30 43 135 54 57 -26 21 5 0.57
135 10 37 -26 4 22 17 2 44.7 59 65 -58 134 41 58 -26 7 39 135 39 6 -26 1 2 134 28 59 -26 9 7 135 51 56 -25 59 30 0.57
135 7 40 -25 42 48 17 2 53.8 59 66 -58 134 39 8 -25 46 5 135 36 4 -25 39 29 134 26 11 -25 47 33 135 48 52 -25 37 57 0.57
135 4 39 -25 21 17 17 3 2.8 59 66 -59 134 36 12 -25 24 33 135 32 58 -25 17 57 134 23 18 -25 26 1 135 45 43 -25 16 26 0.57
135 1 34 -24 59 47 17 3 11.9 60 67 -59 134 33 12 -25 3 3 135 29 47 -24 56 28 134 20 20 -25 4 31 135 42 29 -24 54 57 0.57
134 58 24 -24 38 19 17 3 20.9 60 67 -59 134 30 8 -24 41 35 135 26 31 -24 35 1 134 17 18 -24 43 3 135 39 11 -24 33 30 0.57
134 55 9 -24 16 53 17 3 30.0 60 68 -59 134 26 58 -24 20 9 135 23 12 -24 13 35 134 14 11 -24 21 37 135 35 49 -24 12 5 0.56
134 51 50 -23 55 29 17 3 39.0 60 68 -59 134 23 44 -23 58 44 135 19 48 -23 52 11 134 11 0 -24 0 12 135 32 23 -23 50 41 0.56
134 48 27 -23 34 7 17 3 48.1 60 69 -59 134 20 26 -23 37 22 135 16 19 -23 30 49 134 7 44 -23 38 49 135 28 53 -23 29 19 0.56
134 44 59 -23 12 46 17 3 57.1 60 70 -59 134 17 4 -23 16 0 135 12 47 -23 9 28 134 4 23 -23 17 27 135 25 18 -23 7 58 0.56
134 41 27 -22 51 26 17 4 6.2 60 70 -59 134 13 37 -22 54 40 135 9 10 -22 48 9 134 0 59 -22 56 7 135 21 39 -22 46 39 0.56
134 37 51 -22 30 8 17 4 15.2 60 71 -59 134 10 5 -22 33 22 135 5 30 -22 26 52 133 57 29 -22 34 49 135 17 57 -22 25 22 0.56
134 34 11 -22 8 52 17 4 24.3 60 71 -59 134 6 29 -22 12 5 135 1 45 -22 5 35 133 53 56 -22 13 32 135 14 10 -22 4 6 0.56
134 30 27 -21 47 37 17 4 33.3 60 72 -59 134 2 49 -21 50 50 134 57 56 -21 44 21 133 50 18 -21 52 16 135 10 19 -21 42 51 0.56
134 26 38 -21 26 23 17 4 42.4 61 73 -60 133 59 5 -21 29 36 134 54 3 -21 23 7 133 46 35 -21 31 2 135 6 24 -21 21 38 0.56
134 22 46 -21 5 10 17 4 51.4 61 73 -60 133 55 17 -21 8 23 134 50 6 -21 1 55 133 42 49 -21 9 49 135 2 26 -21 0 26 0.56
134 18 49 -20 43 59 17 5 0.5 61 74 -60 133 51 24 -20 47 11 134 46 6 -20 40 44 133 38 58 -20 48 37 134 58 23 -20 39 15 0.56
134 14 48 -20 22 49 17 5 9.5 61 75 -60 133 47 27 -20 26 1 134 42 1 -20 19 34 133 35 3 -20 27 27 134 54 16 -20 18 6 0.56
134 10 43 -20 1 40 17 5 18.6 61 75 -60 133 43 27 -20 4 51 134 37 52 -19 58 26 133 31 4 -20 6 17 134 50 6 -19 56 57 0.56
134 6 35 -19 40 32 17 5 27.6 61 76 -60 133 39 22 -19 43 43 134 33 40 -19 37 18 133 27 1 -19 45 9 134 45 52 -19 35 50 0.55
134 2 22 -19 19 25 17 5 36.7 61 76 -60 133 35 13 -19 22 36 134 29 23 -19 16 11 133 22 54 -19 24 2 134 41 34 -19 14 43 0.55
133 58 5 -18 58 19 17 5 45.7 61 77 -60 133 31 0 -19 1 30 134 25 3 -18 55 6 133 18 42 -19 2 55 134 37 12 -18 53 38 0.55
133 53 45 -18 37 14 17 5 54.8 61 78 -60 133 26 42 -18 40 24 134 20 39 -18 34 1 133 14 27 -18 41 50 134 32 46 -18 32 33 0.55
133 49 20 -18 16 10 17 6 3.8 61 78 -60 133 22 21 -18 19 20 134 16 11 -18 12 57 133 10 7 -18 20 45 134 28 17 -18 11 29 0.55
133 44 52 -17 55 6 17 6 12.9 61 79 -60 133 17 56 -17 58 16 134 11 39 -17 51 54 133 5 44 -17 59 41 134 23 44 -17 50 26 0.55
133 40 19 -17 34 4 17 6 21.9 61 80 -60 133 13 27 -17 37 13 134 7 4 -17 30 52 133 1 16 -17 38 38 134 19 7 -17 29 24 0.55
133 35 43 -17 13 2 17 6 31.0 61 80 -60 133 8 54 -17 16 11 134 2 25 -17 9 50 132 56 44 -17 17 36 134 14 26 -17 8 23 0.55
133 31 3 -16 52 1 17 6 40.0 61 81 -60 133 4 17 -16 55 10 133 57 41 -16 48 49 132 52 9 -16 56 34 134 9 42 -16 47 22 0.55
133 26 19 -16 31 0 17 6 49.1 61 82 -60 132 59 36 -16 34 9 133 52 55 -16 27 49 132 47 29 -16 35 33 134 4 53 -16 26 22 0.55
133 21 31 -16 10 0 17 6 58.1 61 82 -60 132 54 51 -16 13 8 133 48 4 -16 6 49 132 42 45 -16 14 33 134 0 1 -16 5 22 0.55
133 16 39 -15 49 1 17 7 7.2 61 83 -60 132 50 2 -15 52 9 133 43 9 -15 45 50 132 37 58 -15 53 33 133 55 6 -15 44 23 0.55
133 11 44 -15 28 2 17 7 16.2 61 84 -60 132 45 9 -15 31 9 133 38 11 -15 24 51 132 33 6 -15 32 33 133 50 6 -15 23 25 0.55
133 6 44 -15 7 3 17 7 25.3 61 84 -60 132 40 12 -15 10 10 133 33 9 -15 3 53 132 28 10 -15 11 34 133 45 3 -15 2 26 0.54
133 1 41 -14 46 5 17 7 34.3 61 85 -60 132 35 12 -14 49 12 133 28 4 -14 42 55 132 23 11 -14 50 36 133 39 56 -14 41 29 0.54
132 56 34 -14 25 7 17 7 43.4 61 86 -60 132 30 7 -14 28 14 133 22 54 -14 21 58 132 18 7 -14 29 37 133 34 46 -14 20 31 0.54
132 51 23 -14 4 9 17 7 52.4 61 86 -60 132 24 58 -14 7 16 133 17 41 -14 1 0 132 13 0 -14 8 39 133 29 31 -13 59 34 0.54
132 46 8 -13 43 12 17 8 1.5 61 87 -60 132 19 46 -13 46 18 133 12 24 -13 40 3 132 7 48 -13 47 41 133 24 13 -13 38 37 0.54
132 40 50 -13 22 14 17 8 10.5 61 87 -60 132 14 29 -13 25 20 133 7 3 -13 19 6 132 2 32 -13 26 44 133 18 52 -13 17 40 0.54
132 35 27 -13 1 17 17 8 19.6 61 88 -60 132 9 9 -13 4 23 133 1 38 -12 58 9 131 57 13 -13 5 46 133 13 26 -12 56 44 0.54
132 30 1 -12 40 20 17 8 28.6 61 89 -61 132 3 44 -12 43 26 132 56 10 -12 37 13 131 51 49 -12 44 49 133 7 57 -12 35 47 0.54
132 24 30 -12 19 23 17 8 37.7 61 89 -61 131 58 16 -12 22 28 132 50 37 -12 16 16 131 46 22 -12 23 51 133 2 24 -12 14 50 0.54
132 18 56 -11 58 26 17 8 46.8 61 90 -61 131 52 43 -12 1 31 132 45 1 -11 55 19 131 40 50 -12 2 54 132 56 47 -11 53 54 0.54
132 13 18 -11 37 29 17 8 55.8 61 91 -61 131 47 7 -11 40 34 132 39 21 -11 34 23 131 35 15 -11 41 56 132 51 6 -11 32 57 0.54
132 7 36 -11 16 32 17 9 4.9 61 91 -61 131 41 26 -11 19 36 132 33 38 -11 13 26 131 29 35 -11 20 59 132 45 21 -11 12 1 0.54
132 1 50 -10 55 35 17 9 13.9 61 92 -61 131 35 42 -10 58 39 132 27 50 -10 52 29 131 23 51 -11 0 1 132 39 33 -10 51 4 0.53
131 56 0 -10 34 37 17 9 23.0 61 93 -60 131 29 53 -10 37 41 132 21 58 -10 31 31 131 18 3 -10 39 3 132 33 41 -10 30 7 0.53
131 50 5 -10 13 40 17 9 32.0 61 93 -60 131 24 1 -10 16 43 132 16 3 -10 10 34 131 12 11 -10 18 5 132 27 45 -10 9 9 0.53
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]