Station Map for the Occultation by (4103) Chahine at Saturday, 2009 October 10 (~ 00:46 UT)

V-magnitude of target star TYC 1790-00021-1: 8.6 mag
Spectral Type G0
Johnson B-V Colour Index: + 0.6
UCAC instrumental „pseudo-R“ fit-model magnitude: 8.4 mag (data from UCAC3)

The max duration is expected to be 1.4 sec with a max drop of 5.2 mag.
The event will take place at an altitude of  64 deg and at azimuth 192 deg. The sun will be at an altitude of -36 deg. (At predicted centre line for longitude E 20 deg)

There is a 1 sigma uncertainty interval of  ± 4.4 path widths.
The probabilities to see a positive event:

Centre line: ~  9 %
Path limits: ~  9 %
1 sigma lines:  ~ 5 %
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_10/1010_4103_18971.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20091010_18971_Sites.txt

Map and Coordinates at the web page of  E.A.O.N. :
http://astrosurf.com/eaon/Occultations%20October.htm

Good luck with your observation!

Oliver Klös

IOTA-ES