Bright star, at 8.5, and very high rank. We'll set up near the northern limit just south of Paicines. It's at 20 degrees altitude in the east, in northern Orion. The event lasts up to 17.7 seconds, but near the northern limit probably less than 10 seconds. Integration should be off, 2x setting recommended.
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Richard Nolthenius Results
I took the northern station, to make the logistics easier. We met at 11:25pm out front the closed little market which is the only retail business establishment in the little hamlet of Paicines. From there we caravaned to Cienega Rd, which accesses some vineyards in the plane of the San Benito River to the west. I parked and began set-up. I also got out the Panasonic camcorder which I use for videorecording lectures and gave it to Kirk, put on my lapel mic, and asked him to record while I described the setup with our equipment for asteroid occultations. At midnight, Kirk drove south to set up his own station about 6 miles farther on.
Smile - a success! |
A screen capture of the LiMovie panel. |
LiMovie raw photometry. I recorded more, but the before and after of the segment analyzed, had nothing surprising. |
My visual impression watching the D, was that it happened in steps. However, the star was brighter than typical just a moment before, and the step was within the brightness range of this rapid twinkling. |
PyOTE analysis of the LiMovie photometry with the best fit D and R moments. |
The error histogram. The black bar to the right and the red bar far far to the right, indicates the odds of a false positive are essentially 0. |
Nolthenius PyOTE log file and LiMovie CSV photometry file
Kirk Bender's Results
Kirk setup with identical (but newer and more sensitive than my Watec 910hx) equipment, about 6 miles south of me and deeper into the predicted path.
Kirk's LiMovie screen capture |
The raw data from LiMovie |
A zoom in on the 16 second event. |
PyMovie photometry |
PyMovie, just the target star, and the size of the adopted aperture for each frame. |
PyOTE analysis |
Error histogram from PyOTE. Pretty darn solid. |
