 Radar image of 2002 NY40 taken by the Arecibo Observatory in August 2002, revealing its contact binary shape | |
| Discovery | |
|---|---|
| Discovered by | LINEAR |
| Discovery site | Lincoln Laboratory ETS |
| Discovery date | 14 July 2002 (first observed only) |
| Designations | |
| MPC designation | 2002 NY40 |
| Minor planet category | NEO · Apollo · PHA |
| Orbital characteristics | |
| Epoch 27 April 2019 (JD 2458600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 3.01 yr (1,099 d) |
| Aphelion | 3.5047 AU |
| Perihelion | 0.5987 AU |
| Semi-major axis | 2.0517 AU |
| Eccentricity | 0.7082 |
| Orbital period (sidereal) | 2.94 yr (1,073 d) |
| Mean anomaly | 231.63° |
| Mean motion | 0° 20 7.44 / day |
| Inclination | 5.8869° |
| Longitude of ascending node | 145.46° |
| Argument of perihelion | 269.68° |
| Earth MOID | 0.0010 AU (0.3896 LD) |
| Physical characteristics | |
| Mean diameter | 800 m |
| Absolute magnitude (H) | 19.0 |
2002 NY40 is a sub-kilometer near-Earth object and potentially hazardous asteroid of the Apollo group, approximately 800 meters (2,600 feet) in diameter. The contact binary with a bilobated, peanut-like shape was first observed on 14 July 2002 by the LINEAR automated system in New Mexico. On 18 August 2002, it passed Earth at a distance of 540,000 km. It was observed with adaptive optics by the Midcourse Space Experiment.
Orbit and classification
It orbits the Sun at a distance of 0.6–3.5 AU once every 2 years and 11 months (1,073 days; semi-major axis of 2.05 AU). Its orbit has an eccentricity of 0.71 and an inclination of 6° with respect to the ecliptic.
References
- ^ "2002 NY40". Minor Planet Center. Retrieved 24 August 2019.
- ^ "JPL Small-Body Database Browser: (2002 NY40)" (2005-07-15 last obs.). Jet Propulsion Laboratory. Retrieved 24 August 2019.
- The Triangle that Skimmed Past the Earth: Asteroid 2002 NY40 11 September 2007 by Fraser Cain
- Ted Stryk @tsplanets, Twitter, 23 Aug 2019
External links
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- APOD Aug 17, 2002
- 2002 NY40 at NeoDyS-2, Near Earth Objects—Dynamic Site
- 2002 NY40 at ESA–space situational awareness
- 2002 NY40 at the JPL Small-Body Database
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