(7888) 1993 UC
(7888) 1993 UC is a near-Earth minor planet in the Apollo group.[1] It was discovered by Robert H. McNaught at the Siding Spring Observatory in Coonabarabran, New South Wales, Australia, on 20 October 1993.[1] The asteroid has an observation arc of 23 years and has a well determined orbit.[1] Its estimated size is 2.3 to 5.2 km.[4]
On 20 March 2013, the asteroid passed 49 lunar distances or 0.12598 AU (18,846,000 km; 11,711,000 mi) from Earth at a relative velocity of 21.8 km/s (49,000 mph).[1] The approach posed no threat to Earth. (7888) 1993 UC is not classified as a potentially hazardous asteroid (PHA) because its Earth MOID (Minimum Orbit Intersection Distance) is only 0.089 AU,[1] and only objects with an Earth MOID less than 0.05 AU are considered PHAs.[5]
It was discovered to be a binary asteroid by Arecibo Observatory in March 2013.[6]
On 29 April 2146, the asteroid will pass 0.0346 AU (5,180,000 km; 3,220,000 mi) from asteroid 4 Vesta.[1]
References
- ^ a b c d e f g h i j k "JPL Close-Approach Data: 7888 (1993 UC)". Retrieved 11 April 2016.
2012-11-25 last obs (arc=23 years)
- ^ (E.A.R.N.) physical data for (7888) 1993UC
- ^ "1993 UC Ephemerides for 20 March 2013". NEODyS (Near Earth Objects – Dynamic Site). Retrieved 19 March 2013.
- ^ NASA "NEO Earth Close Approach Tables", Retrieved on 21 December 2012.
- ^ NASA/JPL "NEO Program FAQ", Retrieved on 21 December 2012.
- ^ Dr. Lance A. M. Benner (18 November 2013). "Binary and Ternary near-Earth Asteroids detected by radar". NASA/JPL Asteroid Radar Research. Archived from the original on 8 June 2004. Retrieved 1 March 2014.
External links
- Asteroids with Satellites, Robert Johnston, johnstonsarchive.net
- (7888) 1993 UC at NeoDyS-2, Near Earth Objects—Dynamic Site
- Ephemerides · Observation prediction · Orbital info · MOID · Proper elements · Observational info · Close approaches · Physical info · Orbit animation
- (7888) 1993 UC at ESA–space situational awareness
- Ephemerides · Observations · Orbit · Physical properties · Summary
- (7888) 1993 UC at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters
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- 7887 Bratfest
- (7888) 1993 UC
- (7889) 1994 LX