The Occultation of an 11.9 star by Asteroid Benkoela

Friday morning 12:49:40pm PST

HarvestMoon Prediction Sheet

This is another relatively low rank event, with odds at home of 28% and the path centerline locally offshore. It's only 19 degrees from the nearly full moon, and it at 73 degrees altitude so will require the alternate 1.25" diagonal and nosepiece reducer and not the f/3.3 Meade reducer. That means both the Q70 field and the camcorder LCD screen will be left-right reversed

I assumed here that Kirk would try from home. Would be best not to go to Empire Grade or it would overlap me.

 

Results:

Weather was perfect. Dry, clear, but the sky was bright, only 19 degrees from the full moon. Looks like a miss. The drop should have been 1.8 magnitudes, from 11.9 to 13.8 which would look like a complete drop out. I used the Watec on setting 4x, or 2 frames per integration.

The LiMovie analysis screen

LiMovie light curve, zoomed in to the predicted event time

Calibrated lightcurve from PyOTE analysis, level predicted if an occultation, and predicted duration for central event

 

LiMovie photometry CSV file

Report, sent to IOTA 1/13/20