Station Map for the Occultation by (554) Peraga at Sunday, 2011 April 17 (~ 19:58 UT)

Magnitude of target star 2UCAC 39302834: 13.0 mag
UCAC instrumental „pseudo-R“ fit-model magnitude: 13.2 mag (data from UCAC3)

Please notice:
In the case of an occultation, the combined light of the asteroid and the star will drop by 1.1 mag to 13.6 mag (the magnitude of the asteroid).

The max duration is expected to be 4.0 sec with a max drop of 1.1 mag.
The event will take place at an altitude of 45 deg and at azimuth 253 deg. The sun will be at an altitude of -18 deg. (At predicted centre line for longitude E10 deg)

There is a 1 sigma uncertainty interval of  ± 1.05 path widths.
The probabilities to see a positive event:

Centre line: ~  37 %
Path limits: ~  33 %
1 sigma lines:  ~ 13 %
2 sigma lines: ~ 1 %

(Calculation according to Raymond Dusser, E.A.O.N. Circular #10)

PLEASE REMEMBER: Predictions are sometimes wrong. Please observe even with a small probability.
Let other observers know about you observing plans: Announce you station with OccultWatcher !

More information (coordinates, finder charts) at Steve Preston’s prediction:

Good luck with your observation!

Oliver Klös

(554) Peraga, 2011 April 17, Station Map

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