The Occultation of a W=12.1 Star for 0.6s by Asteroid 1999 TT15

Tue eve Jan 6, 2026 at 11:23:11pm

OWc page

 

This event has only mediocre rank. I'm on the edge of the shadow zone and will take my chances here at home for it. The path northern limit runs along the coast so it would require a drive to La Selva or south to get better into the path. But the rank is not great and so I don't plan to do this. I'll have 50/50 odds here at home. Karl will have little chance of a shift large enough to bring it to him, I'm guessing. Bernard's inside the 1-sigma zone.

Alt=59, Az=165 in Monoceros. 10 deg below Alhena (Gamma Gem) and halfway between Procyon and Betelgeuse

     

 

Results:

Richard Nolthenius

I got this one from home, at my carport. At 4x setting. Star was not as bright and easy as the magnitude suggests. 4x was marginal. Sky looked clear all around the target area during the recording, and the low gibbous moon should have highlighted any significant clouds. There were cirrus down in the east, but they were moving lower and further east and no new clouds were coming in from the west. I watched intently during the live event and it looked like a miss. Confirmed by PyMovie analysis.

The top two  stars, tracking stars, show this strange oscillation. Both stars had major saturation in many pixels.

The target shows less of this oscillation. My default pass was with small 2.4px mask and no median filtering

I did another pass, with 3.2px mask to include max amount of star light, and used median filtering. The results do not look better than the original.

Zoomed in on event.

 

Kirk Bender

initial playback looks like a miss