Station Map for the Occultation by (267) Tirza at Saturday, 2009 November 14 (~ 05:18 UT)

Trans-Atlantic Event!
Shadow crossed Canada and NW U.S.A. too.

V-magnitude of target star TYC 1863-00358-1: 12.3 mag
Johnson B-V Colour Index: + 1.0
UCAC instrumental „pseudo-R“ fit-model magnitude: 12.1 mag (data from UCAC3)

The max duration is expected to be 5.7 sec with a max drop of 3.1 mag.
The event will take place at an altitude of 50 deg and at azimuth 260 deg. The sun will be at an altitude of -16 deg. (At predicted centre line for longitude 0 deg)

There is a 1 sigma uncertainty interval of  ± 1.25 path widths.
The probabilities to see a positive event:

Centre line: ~  31 %
Path limits: ~  29 %
1 sigma lines:  ~ 12 %
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_11/1114_267_18142.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20091114_18142_Sites.txt

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

Good luck with your observation!

Oliver Klös

IOTA-ES

(267) Tirza, 2009 Nov 14, Station Map

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