(523775) 2014 YB35

(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 byCatalina Sky Survey
Discovery siteCatalina Station
Discovery date27 December 2014
Designations
(523775) 2014 YB35
2014 YB35
Apollo · NEO · PHA [1][2]
Orbital characteristics [2]
Epoch 27 April 2019 (JD 2458600.5)
Uncertainty parameter 1
Observation arc3.72 yr (1,360 d)
Aphelion2.7834 AU
Perihelion0.9697 AU
1.8766 AU
Eccentricity0.4833
2.57 yr (939 d)
209.73°
0° 23m 0.24s / day
Inclination12.641°
3.7634°
188.63°
Known satellites1 (D: < 150 m; P: n.a.)[3][4][5]
Earth MOID0.0224 AU (8.73 LD)
Physical characteristics
Mean diameter
0.300 km[3][4][5]
0.52 km[6]
3.277±0.002 h[7][lower-alpha 1]
0.20 (assumed)[8]
0.39[5]
S (assumed)[8]
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

    Notes
    1. Lightcurve plot of (523775) 2014 YB35 by Robert Stephens. Rotation period 3.277±0.002 hours with a brightness amplitude of mag. Quality code is 2+. Summary figures for at the LCDB and CS3

    References
    1. "523775 (2014 YB35)". Minor Planet Center. Retrieved 9 October 2018.
    2. "JPL Small-Body Database Browser: 523775 (2014 YB35)" (2018-09-17 last obs.). Jet Propulsion Laboratory. Retrieved 9 October 2018.
    3. Johnston, Wm. Robert (30 September 2018). "Asteroids with Satellites Database – (450894) 2008 BT18". Johnston's Archive. Retrieved 9 October 2018.
    4. Naidu, S. P.; Benner, L. A. M.; Brozovic, M.; Giorgini, J. D.; Jao, J. S.; Lee, C. G.; et al. (July 2015). "2014 YB_35". Central Bureau Electronic Telegrams (4121). 1. Bibcode:2015CBET.4121....1N.
    5. "Asteroid (523775) 2014 YB35". Small Bodies Data Ferret. Retrieved 9 October 2018.
    6. Benner, Lance A. M. (4 March 2015). "Goldstone Radar Observations Planning: 2002 FG7 and 2014 YB35". NASA/Jet Propulsion Laboratory. Archived from the original on 27 March 2015. Retrieved 13 March 2015. (L. Benner's list of radiometric NEA observations)
    7. Stephens, Robert D.; French, Linda M.; Warner, Brian D.; Connour, Kyle (October 2015). "Lightcurve Analysis of Two Near-Earth Asteroids". The Minor Planet Bulletin. 42 (4): 276–277. Bibcode:2015MPBu...42..276S. ISSN 1052-8091.
    8. "LCDB Data for (523775)". Asteroid Lightcurve Database (LCDB). Retrieved 9 October 2018.
    9. "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 9 October 2018.
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