Trisha Shetty (Editor)

(192642) 1999 RD32

Updated on
Share on FacebookTweet on TwitterShare on LinkedInShare on Reddit
Discovered by  LINEAR (704)
MPC designation  (192642) 1999 RD32
Observation arc  7702 days (21.09 yr)
Absolute magnitude  16.3
Discovery date  8 September 1999
Minor planet category  Apollo NEO, PHA
Discovered  8 September 1999
Asteroid group  Apollo asteroid
(192642) 1999 RD32 httpsuploadwikimediaorgwikipediacommonsthu
Aphelion  4.6785 AU (699.89 Gm) (Q)
Discoverer  Lincoln Near-Earth Asteroid Research

192642 1999 rd32 top 5 facts

(192642) 1999 RD32, provisionally known as 1999 RD32, is a near-Earth asteroid and potentially hazardous object. It was discovered on 8 September 1999 by Lincoln Near-Earth Asteroid Research (LINEAR) at an apparent magnitude of 18 using a 1.0-meter (39 in) reflecting telescope.

With two precovery images from January 1995, the asteroid has a very well determined orbit with an observation arc of 17 years. It is known that 1999 RD32 passed 0.0093 AU (1,390,000 km; 860,000 mi) from Earth on 27 August 1969. During the 1969 close approach the asteroid reached about apparent magnitude 8.8. The similarly-sized 4179 Toutatis also reached that brightness in September 2004. 1999 RD32 passed less than 0.007 AU (1,000,000 km; 650,000 mi) from asteroid 29 Amphitrite on 17 January 1939.

Arecibo radar observations on 5–6 March 2012 showed that 1999 RD32 is approximately 5 kilometers (3 mi) in diameter and has an albedo of only a few percent. The two visible lobes suggest that 1999 RD32 is a tight binary asteroid or contact binary. About 10–15% of near-Earth asteroids larger than 200 meters are expected to be contact binary asteroids with two lobes in mutual contact.


(192642) 1999 RD32 Wikipedia