Station Map for the Occultation by (856) Backlunda at Wednesday, 2009 September 09 (~ 02:49 UT)

V-Magnitude of target star TYC 0066-00038-1: 10.3 mag
Spectral Type: K0
Johnson B-V Colour Index: + 0.8
UCAC instrumental “pseudo-R” fit-model magnitude: 9.96 mag (data from UCAC3)

The max duration is expected to be 5.8 sec with a max drop of  5.3 mag.
The event will take place at an altitude of 42 deg and at azimuth 138 deg. The sun will be at an altitude of -29 deg. (At predicted centre line for longitude W 01 deg)

There is a 1 sigma uncertainty interval of  ± 0.79 path widths.
The probabilities to see a positive event:

Centre line: ~  47 %
Path limits: ~  40 %
1 sigma lines:  ~ 15 %
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_09/0909_856_17903.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20090909_17903_Sites.txt

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

Good luck with your observation!

Oliver Klös

IOTA-ES