Occultation by (444) Gyptis on Feb 10, 2008 (Campbell video)

Michael Richmond
Feb 29, 2008

This very brief summary written while I am on vacation, so I don't have access to notes; will fix later.

On Feb 10, 2008, the asteroid (444) Gyptis occulted the star HIP 18539; see Steve Preston's web pages for this event for more information. Tom Campbell recorded the event and kindly sent a copy of the digital video to me for analysis.

I co-added consecutive sets of 10 frames to boost the signal-to-noise ratio.

I measured the brightness of the target and several nearby comparison stars using circular apertures of radii 2, 3, 4, 5 pixels. The tightest results seemed to occur with the smallest aperture:

You can grab the results yourself for further analysis. The interesting columns are