astro.wikisort.org - Asteroid

(523775) 2014 YB₃₅, provisional designation 2014 YB₃₅, is a stony near-Earth object and potentially hazardous asteroid of the Apollo group, approximately 300 meters (980 feet) in diameter. It was discovered on 27 December 2014 by the Catalina Sky Survey at the Catalina Station in Arizona, United States.[1] In March 2015, a minor-planet moon, less than half the size of its primary, was discovered by radar astronomers at Goldstone Observatory.[3] The primary body of the binary system has a rotation period of 3.3 hours, while the secondary's orbital period remains unknown.[8]

(523775) 2014 YB₃₅

Discovery[1]
Discovered by	Catalina Sky Survey
Discovery site	Catalina Station
Discovery date	27 December 2014
Designations
MPC designation	(523775) 2014 YB35
Alternative designations	2014 YB35
Minor planet category	Apollo · NEO · PHA[1][2]
Orbital characteristics[2]
Epoch 27 April 2019 (JD 2458600.5)
Uncertainty parameter 1
Observation arc	3.72 yr (1,360 d)
Aphelion	2.7834 AU
Perihelion	0.9697 AU
Semi-major axis	1.8766 AU
Eccentricity	0.4833
Orbital period (sidereal)	2.57 yr (939 d)
Mean anomaly	209.73°
Mean motion	0° 23m 0.24s / day
Inclination	12.641°
Longitude of ascending node	3.7634°
Argument of perihelion	188.63°
Known satellites	1 (D: <150 m; P: n.a.)[3][4][5]
Earth MOID	0.0224 AU (8.73 LD)
Physical characteristics
Mean diameter	0.300 km[3][4][5] 0.52 km[6]
Synodic rotation period	3.277±0.002 h[7][lower-alpha 1]
Geometric albedo	0.20 (assumed)[8] 0.39[5]
Spectral type	S (assumed)[8]
Absolute magnitude (H)	19.0[1][2][6] 20.0[8]

Orbit and classification

2014 YB₃₅ is a member of the Apollo asteroids, a group of near-Earth object with an Earth-crossing orbit. It orbits the Sun at a distance of 1.0–2.8 AU once every 2 years and 7 months (939 days; semi-major axis of 1.88 AU). Its orbit has an eccentricity of 0.48 and an inclination of 13° with respect to the ecliptic.[2] The body's observation arc begins at with its official discovery observation at Catalina Station in December 2014.[1]

Close encounters

It passed by Earth on 27 March 2015 at 06:21 UTC at a distance of 4,473,807 ± 155 km (2,779,895 ± 96 mi), or 11.7 lunar distances, and a relative speed of 10.16 km/s (6.31 mi/s).[2] 2014 YB₃₅'s next encounter with Earth will be in 2033, at a distance of approximately 3,330,000 km (2,070,000 mi).[2]

Satellite

The Goldstone Deep Space Communications Complex was scheduled to observe this object on 20 March 2015, at which time it was expected they could obtain coarse radar images and continuous wave spectra, which may help determine the asteroid's composition.[6] These observations showed a small companion less than 150 meters across orbiting the asteroid, with an unknown orbit.[3][4]

Numbering and naming

This minor planet was numbered by the Minor Planet Center on 25 September 2018 (M.P.C. 111778).[9] As of 2018, it has not been named.[1]

See also

• List of asteroid close approaches to Earth in 2015

Notes

References

External links

• MPEC 2014-Y89: 2014 YB35, Minor Planet Electronic Circular at the IAU Minor Planet Center
• Asteroids with Satellites at Johnstonsarchive.net
• Binary and Ternary Near-Earth Asteroids Detected by Radar by the Jet Propulsion Laboratory
• 2014 YB₃₅ at the IAU Minor Planet Center
• (523775) 2014 YB35 at NeoDyS-2, Near Earth Objects—Dynamic Site
  • Ephemeris · Obs prediction · Orbital info · MOID · Proper elements · Obs info · Close · Physical info · NEOCC
• YB35 (523775) 2014 YB35 at ESA–space situational awareness
  • YB35&tab=eph Ephemerides · YB35&tab=obs Observations · YB35&tab=orbprop Orbit · YB35&tab=physprops Physical Properties · YB35&tab=summary Summary
• (523775) 2014 YB35 at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

На других языках

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[de] (523775) 2014 YB35

(523775) 2014 YB35, Alternativschreibweise 2014 YB35, ist ein Erdnaher Asteroid der Apollo-Gruppe. Er wurde durch die Catalina Sky Survey am 27. Dezember 2014 entdeckt. Er hat einen Durchmesser von etwa 520 Metern und gilt als potentiell gefährlicher Asteroid (potentially hazardous asteroid, kurz PHA).[1]

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- [en] (523775) 2014 YB35

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