Wednesday, August 7, 2013

Close Approach of Asteroid 2013 PJ10

M.P.E.C. 2013-P39, issued on 2013 August 06, reports the discovery of the asteroid 2013 PJ10 (discovery magnitude 14.8) by La Sagra Sky Survey (MPC code J75) on images taken on August 04.9 with a 0.45-m f/2.8 reflector + CCD.

2013 PJ10 has an estimated size of 31 m - 70 m (based on the object's absolute magnitude H=24.6) and it had a close approach with Earth at about 1 LD (Lunar Distances = ~384,000 kilometers) or 0.0025 AU (1 AU = ~150 million kilometers) at 0218 UT on 2013, August 04. This asteroid reached the peak magnitude ~13.0 on August 04.

We performed some follow-up measurements of this object on 2013, August 06.3, while it was still on the neocp, remotely from the H06 iTelescope network (New Mexico, Mayhill), through a 0.25-m f/3.4 reflector + CCD. Below you can see our image, stack of 6X15-second exposures, taken with the asteroid at magnitude ~15.3 and moving at ~ 19.0 "/min. At the moment of the close approach 2013 PJ10 was moving at ~ 218"/min. Click on the image below to see a bigger version. North is up, East is to the left

by Ernesto Guido & Nick Howes

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