Showing posts with label 2014 HO132. Show all posts
Showing posts with label 2014 HO132. Show all posts

Monday, May 5, 2014

Close Approach of Asteroid 2014 HO132

The asteroid 2014 HO132 was discovered (at magnitude ~19.6) on 2014, April 28.4 by F51 Pan-STARRS 1, Haleakala survey.

2014 HO132 has an estimated size of 19 m - 42 m (based on the object's absolute magnitude H=25.7) and it had a close approach with Earth at about 2.1 LD (Lunar Distances = ~384,000 kilometers) or 0.0055 AU (1 AU = ~150 million kilometers) at 0810 UT on 2014, May 05. This asteroid reached the peak magnitude ~15.6 on May 04, 2014.

We performed some follow-up measurements of this object on 2014, May 05.5, remotely from the Q62 iTelescope network (Siding Spring) through a 0.50-m f/6.8 astrograph + CCD + f/4.5 focal reducer.

Below you can see our image taken with the asteroid at magnitude ~16.4 and moving at ~135.47 "/min. At the moment of its close approach at 0810 UT, 2014 HO132 was moving at ~141 "/min. Click on the image below to see a bigger version. North is up, East is to the left (the asteroid is trailed in the image due to its fast speed).


Below you can see a short animation showing the movement of 2014 HO132 (three consecutive 90-second exposure). Click on the thumbnail for a bigger version:



UPDATE - May 08, 2014

Asteroid 2014 HO132 was observed on May 03, 2014 by radar at Goldstone. Below you can find the radar images, sums of fifteen consecutive runs at a resolution of 3.75 m x 0.11 Hz resolution (click on it for a bigger version).

Credit: NASA/JPL-Caltech/GSSR

by Ernesto Guido, Nick Howes & Martino Nicolini