Station Map for the Occultation by (3909) Gladys at Monday, 2009 July 13 (~ 21:51 UT)

V-Magnitude of target star TYC 4965-00644-1: 10.2 mag
Johnson B-V Colour Index: + 0.5
The UCAC2 gives a „pseudo-R magnitude“ of  9.9 mag

The max duration is expected to be 0.8 sec with a max drop of  6.5 mag.
The event will take place at an altitude of 19 deg and at azimuth 243 deg. The sun will be at an altitude of -20 deg. (At predicted centre line for longitude 0 deg)

There is a 1 sigma uncertainty interval of  ± 3.18 path widths.
The probabilities to see a positive event:

Centre line: ~ 12 %
Path limits: ~  12 %
1 sigma lines:  ~6 %
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:
http://asteroidoccultation.com/2009_07/0713_3909_18965.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20090713_18965_Sites.txt

Map and Coordinates at the web page of  E.A.O.N. (not updated with Steve Preston’s prediction):
http://astrosurf.com/eaon/Occultations%20July.htm

Good luck with your observation!

Oliver Klös

IOTA-ES

(3909) Gladys, 2009 July 13, Station Map

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