Station Map for the Occultation by (1036) Ganymed at Sunday, 2011 September 25 (~ 02:46 UT)

V-Magnitude of target star TYC 3670-00426-1: 11.4 mag
Johnson B-V Colour Index: + 1.1
UCAC instrumental „pseudo-R“ fit-model magnitude: 11.0 mag (data from UCAC3)

Please notice:
In the case of an occultation, the combined light of the asteroid and the star will drop by 0.2 mag to 9.3 mag (the magnitude of the asteroid).

OCCULTATION BY A NEA (Near Earth Asteroid)!
There are more occultations to come in the next months crossing Europe!
Have a look for future events at the special webpage:
http://www.iota-es.de/ganymed_2011.html

The max duration is expected to be 3.0 sec with a max drop of 0.15 mag.
The event will take place at an altitude of 72 deg and at azimuth 289 deg. The sun will be at an altitude of -24 deg. (At predicted centre line for latitude N 52 deg 6min)

There is a 1 sigma uncertainty interval of  ± 0.44 path widths.
The probabilities to see a positive event:

Centre line: ~ 74 %
Path limits: ~  49 %
1 sigma lines:  ~ 16 %
2 sigma lines: ~ 2 %

(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 your station with OccultWatcher !

More information (coordinates, finder charts) at Steve Preston’s prediction:
http://asteroidoccultation.com/2011_09/0925_1036_24072.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20110925_24072_Sites.txt

Good luck with your observation!

Oliver Klös

IOTA-ES