|
|
Updated: 2017 JAN 13, 22:50 UT
Event Rank : 98
(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 2017 Mar 05 UT, the 119 km diameter asteroid (105) Artemis will occult a 11.5 mag star in the constellation Virgo for observers along a fairly broad path across Australia, from Adelaide along eastern South Australia and western Queensland to Karumba.
In the case of an occultation, the combined light of the asteroid and the star will drop by 0.83 mag to 11.60 mag (the magnitude of the asteroid) for at most 14.1 seconds.
This update is based on UNSO/Flagstaff astrometry for the asteroid kindly provided by Hugh Harris, astrometry for the asteroid kindly provided by Bill Owen, 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.
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
136 27 37 -39 11 20 14 22 14 43 64 -44 135 32 9 -39 11 7 137 22 24 -39 11 22 134 59 40 -39 10 55 137 53 53 -39 11 18 -0.77
137 0 0 -37 54 9 14 22 30 44 65 -45 136 5 57 -37 54 4 137 53 24 -37 54 4 135 34 19 -37 53 56 138 24 6 -37 53 57 -0.77
137 28 52 -36 37 39 14 22 45 45 66 -47 136 36 7 -36 37 40 138 21 1 -36 37 28 136 5 14 -36 37 36 138 51 0 -36 37 18 -0.77
137 54 34 -35 21 48 14 23 0 45 66 -48 137 3 0 -35 21 54 138 45 34 -35 21 31 136 32 49 -35 21 54 139 14 54 -35 21 18 -0.77
138 17 24 -34 6 32 14 23 16 46 67 -49 137 26 54 -34 6 44 139 7 21 -34 6 12 136 57 21 -34 6 46 139 36 5 -34 5 55 -0.77
138 37 36 -32 51 51 14 23 31 47 68 -51 137 48 6 -32 52 7 139 26 36 -32 51 26 137 19 8 -32 52 12 139 54 47 -32 51 8 -0.77
138 55 26 -31 37 40 14 23 47 48 69 -52 138 6 49 -31 38 0 139 43 32 -31 37 12 137 38 23 -31 38 8 140 11 13 -31 36 52 -0.76
139 11 3 -30 23 59 14 24 2 48 70 -53 138 23 16 -30 24 23 139 58 21 -30 23 28 137 55 20 -30 24 32 140 25 34 -30 23 6 -0.76
139 24 38 -29 10 45 14 24 17 49 71 -54 138 37 37 -29 11 12 140 11 11 -29 10 11 138 10 7 -29 11 23 140 37 59 -29 9 48 -0.76
139 36 19 -27 57 56 14 24 33 50 72 -56 138 50 0 -27 58 25 140 22 11 -27 57 20 138 22 56 -27 58 38 140 48 35 -27 56 55 -0.76
139 46 15 -26 45 30 14 24 48 50 73 -57 139 0 34 -26 46 1 140 31 29 -26 44 52 138 33 53 -26 46 15 140 57 31 -26 44 26 -0.76
139 54 31 -25 33 25 14 25 4 51 74 -58 139 9 27 -25 33 57 140 39 10 -25 32 44 138 43 6 -25 34 13 141 4 53 -25 32 18 -0.76
140 1 14 -24 21 38 14 25 19 51 76 -59 139 16 42 -24 22 12 140 45 21 -24 20 56 138 50 41 -24 22 29 141 10 46 -24 20 29 -0.76
140 6 29 -23 10 8 14 25 35 52 77 -60 139 22 27 -23 10 44 140 50 7 -23 9 25 138 56 43 -23 11 2 141 15 14 -23 8 57 -0.76
140 10 20 -21 58 53 14 25 50 52 78 -62 139 26 46 -21 59 31 140 53 31 -21 58 9 139 1 18 -21 59 49 141 18 23 -21 57 41 -0.76
140 12 51 -20 47 52 14 26 5 52 80 -63 139 29 42 -20 48 30 140 55 37 -20 47 7 139 4 29 -20 48 49 141 20 15 -20 46 38 -0.75
140 14 5 -19 37 2 14 26 21 53 81 -64 139 31 19 -19 37 40 140 56 29 -19 36 16 139 6 20 -19 38 0 141 20 54 -19 35 47 -0.75
140 14 6 -18 26 21 14 26 36 53 83 -65 139 31 41 -18 27 0 140 56 9 -18 25 35 139 6 54 -18 27 20 141 20 22 -18 25 5 -0.75
140 12 55 -17 15 48 14 26 52 53 84 -66 139 30 49 -17 16 28 140 54 39 -17 15 2 139 6 13 -17 16 48 141 18 42 -17 14 32 0.75
140 10 35 -16 5 21 14 27 7 53 86 -67 139 28 46 -16 6 1 140 52 3 -16 4 35 139 4 20 -16 6 21 141 15 56 -16 4 5 0.75
140 7 8 -14 54 59 14 27 22 53 87 -69 139 25 33 -14 55 39 140 48 20 -14 54 12 139 1 16 -14 55 59 141 12 5 -14 53 42 0.75
140 2 34 -13 44 39 14 27 38 53 89 -70 139 21 13 -13 45 19 140 43 34 -13 43 52 138 57 3 -13 45 39 141 7 11 -13 43 22 0.75
139 56 55 -12 34 19 14 27 53 53 91 -71 139 15 45 -12 34 59 140 37 43 -12 33 33 138 51 43 -12 35 19 141 1 14 -12 33 4 0.74
139 50 12 -11 23 59 14 28 9 53 92 -72 139 9 12 -11 24 39 140 30 50 -11 23 14 138 45 15 -11 24 58 140 54 15 -11 22 44 0.74
139 42 25 -10 13 36 14 28 24 53 94 -73 139 1 33 -10 14 15 140 22 55 -10 12 51 138 37 40 -10 14 35 140 46 15 -10 12 22 0.74
139 33 33 - 9 3 9 14 28 39 53 95 -74 138 52 48 - 9 3 47 140 13 57 - 9 2 25 138 28 59 - 9 4 6 140 37 14 - 9 1 56 0.74
139 23 38 - 7 52 35 14 28 55 53 97 -75 138 42 57 - 7 53 12 140 3 57 - 7 51 52 138 19 12 - 7 53 31 140 27 11 - 7 51 24 0.74
139 12 38 - 6 41 53 14 29 10 52 98 -76 138 32 1 - 6 42 29 139 52 54 - 6 41 11 138 8 17 - 6 42 47 140 16 6 - 6 40 43 0.74
Uncertainty in time = +/- 4 secs
Prediction of 2017 Jan 13.0
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]