(86039) 1999 NC43
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| Discovery[1] | |
|---|---|
| Discovered by | LINEAR (704) |
| Discovery date | 14 July 1999 |
| Designations | |
| MPC designation | (86039) 1999 NC43 |
| Minor planet category |
Apollo NEO, PHA[2] |
| Orbital characteristics[2] | |
|
Epoch 2013-Nov-04 (Uncertainty=0)[2] | |
| Aphelion | 2.779 AU (Q) |
| Perihelion | 0.7403 AU (q) |
| Semi-major axis | 1.759 AU (a) |
| Eccentricity | 0.5792 |
| Orbital period | 2.33 yr |
| Mean anomaly | 328.6° (M) |
| Inclination | 7.124° |
| Longitude of ascending node | 311.8° |
| Argument of perihelion | 120.6° |
| Physical characteristics | |
| Dimensions | ~2.2 kilometers (1.4 mi)[2] |
| Escape velocity | ~1.1 meters per second (2.5 miles per hour) |
| Sidereal rotation period | 34.5 hr[2] |
| Albedo | 0.14[2] |
| Absolute magnitude (H) | 15.9[2] |
|
| |
(86039) 1999 NC43, provisionally known as 1999 NC43, is a near-Earth asteroid and potentially hazardous object.[2] It was discovered on 14 July 1999 by Lincoln Near-Earth Asteroid Research (LINEAR) at an apparent magnitude of 18 using a 1.0-meter (39 in) reflecting telescope.[1] It has a diameter of 2.2 kilometers (1.4 mi).[2] 1999 NC43 is suspected to be related to the Chelyabinsk meteor from 15 February 2013.[3][4]
1999 NC43 has a well-determined orbit with an uncertainty of 0.[2] It makes close approaches to Venus, Earth, and Mars.[5] Its most notable close approach to Earth will be on 14 February 2173 at a distance of 0.03361 AU (5,028,000 km; 3,124,000 mi).[5]
References
- ↑ 1.0 1.1 "MPEC 1999-O15 : 1999 NC43". IAU Minor Planet Center. 1999-07-19. Retrieved 2013-11-09. (J99N43C)
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 "JPL Small-Body Database Browser: 86039 (1999 NC43)". Jet Propulsion Laboratory. 2013-08-03 last obs (arc=14.15 years). Retrieved 2013-11-09.
- ↑ Borovička, Jiří; Pavel Spurný, Peter Brown, Paul Wiegert, Pavel Kalenda, David Clark, Lukáš Shrbený (6 November 2013). "The trajectory, structure and origin of the Chelyabinsk asteroidal impactor". Nature. doi:10.1038/nature12671. Retrieved 7 November 2013.
- ↑ Schiermeier, Quirin. "Risk of massive asteroid strike underestimated". Nature News. Nature Publishing Group. Retrieved 7 November 2013.
- ↑ 5.0 5.1 "JPL Close-Approach Data: 86039 (1999 NC43)". 2013-08-03 last obs (arc=14.15 years). Retrieved 2013-11-09.
External links
- Orbital simulation from JPL (Java) / Ephemeris
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