Asteroid-Asteroid Appluses

Positions for about 5000 asteroid were computed for every day in a given year for those reaching V = 16 or brighter. For a given asteroid and date, its position was compared against the position on the same data for the remaining asteroids.

If an initial approach within 0.5° was found, a three position interpolation was used to find the approximate time of closest approach. Then the perturbed positions for both asteroids were computed at 1-minute intervals ±3 hours of the estimated time of closest approach. Interpolation was used to find the exact date and time of minimum distance.


Asteroid-Asteroid Appulses (2021)

January May September
February June October
March July November
April August December
 

Asteroid-Asteroid Appulses (2020)

January May September
February June October
March July November
April August December