(163243) 2002 FB3

(163243) 2002 FB3
Discovery [1]
Discovered by LINEAR
Discovery site Lincoln Lab's ETS
Discovery date 18 March 2002
Designations
MPC designation (163243) 2002 FB3
2002 FB3
Aten · NEO · PHA [1][2]
Orbital characteristics [2]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc 16.07 yr (5,869 d)
Aphelion 1.2198 AU
Perihelion 0.3033 AU
0.7616 AU
Eccentricity 0.6017
243 days
150.26°
1° 28m 58.8s / day
Inclination 20.278°
203.60°
148.31°
Earth MOID 0.0034 AU (1.3246 LD)
Physical characteristics
Mean diameter
 1.49 km (calculated)[3]
1.552±0.013 km[4]
1.663±0.285 km[5]
1.682±0.013 km[6]
6.231±0.001 h[7]
0.1426±0.1478[5]
0.172±0.041[6]
0.202±0.046[4]
0.20 (assumed)[3]
Q [3][8]
16.4[2][4]
16.50[3][5]

    (163243) 2002 FB3, provisional designation 2002 FB3, is a stony asteroid on an eccentric orbit, classified as near-Earth object and potentially hazardous asteroid of the Athen group, approximately 1.6 kilometers (1 mile) in diameter. It was discovered on 18 March 2002, by astronomers with the Lincoln Near-Earth Asteroid Research at the Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico, in the United States.[1] The Q-type asteroid has a rotation period of 6.2 hours.[3]

    Orbit and classification

    2002 FB3 is a member of the Athen group of asteroids. It orbits the Sun at a distance of 0.3–1.2 AU once every 8 months (243 days; semi-major axis of 0.76 AU). Its orbit has an eccentricity of 0.60 and an inclination of 20° with respect to the ecliptic.[2] The body's observation arc begins with its official discovery observation at Socorro.[1]

    Close approaches

    The asteroid has an Earth minimum orbital intersection distance of 0.0034 AU (509,000 km; 316,000 mi), which corresponds to 1.3 lunar distances and makes it a potentially hazardous asteroid due to its sufficiently large size.[2]

    Physical characteristics

    2003 QO104 has been characterized as an uncommon Q-type asteroid, that fall into the larger stony S-complex.[3][8]

    Rotation period

    In March 2016, a rotational lightcurve of this asteroid was obtained from photometric observations. Lightcurve analysis gave a rotation period of 6.231 hours with a brightness amplitude of 0.19 magnitude (U=2).[7]

    Diameter and albedo

    According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, measures between 1.552 and 1.682 kilometers in diameter and its surface has an albedo between 0.1426 and 0.202.[4][5][6]

    The Collaborative Asteroid Lightcurve Link assumes a stony standard albedo of 0.20 and calculates a diameter of 1.49 kilometers based on an absolute magnitude of 16.5.[3]

    Naming

    This minor planet was numbered by the MPC on 26 September 2007 (M.P.C. 60678).[9] As of 2018, it has not been named.[1]

    References

    1. 1 2 3 4 5 "163243 (2002 FB3)". Minor Planet Center. Retrieved 20 April 2018.
    2. 1 2 3 4 5 "JPL Small-Body Database Browser: 163243 (2002 FB3)" (2018-04-12 last obs.). Jet Propulsion Laboratory. Retrieved 20 April 2018.
    3. 1 2 3 4 5 6 7 "LCDB Data for (163243)". Asteroid Lightcurve Database (LCDB). Retrieved 20 April 2018.
    4. 1 2 3 4 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results" (PDF). The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 20 April 2018.
    5. 1 2 3 4 Masiero, Joseph R.; Nugent, C.; Mainzer, A. K.; Wright, E. L.; Bauer, J. M.; Cutri, R. M.; et al. (October 2017). "NEOWISE Reactivation Mission Year Three: Asteroid Diameters and Albedos" (PDF). The Astronomical Journal. 154 (4): 10. arXiv:1708.09504. Bibcode:2017AJ....154..168M. doi:10.3847/1538-3881/aa89ec. Retrieved 20 April 2018.
    6. 1 2 3 Mainzer, A.; Grav, T.; Bauer, J.; Masiero, J.; McMillan, R. S.; Cutri, R. M.; et al. (December 2011). "NEOWISE Observations of Near-Earth Objects: Preliminary Results" (PDF). The Astrophysical Journal. 743 (2): 17. arXiv:1109.6400. Bibcode:2011ApJ...743..156M. doi:10.1088/0004-637X/743/2/156. Retrieved 20 April 2018.
    7. 1 2 Monteiro, Filipe; Silva, Jose Sergio; Lazzaro, Daniela; Arcoverde, Plicida; Medeiros, Hissa; Souza, Roberto; et al. (January 2017). "Lightcurve Analysis for Ten Near-Earth Asteroids". The Minor Planet Bulletin. 44 (1): 20–22. Bibcode:2017MPBu...44...20M. ISSN 1052-8091. Retrieved 20 April 2018.
    8. 1 2 Thomas, Cristina A.; Emery, Joshua P.; Trilling, David E.; Delbó, Marco; Hora, Joseph L.; Mueller, Michael (January 2014). "Physical characterization of Warm Spitzer-observed near-Earth objects" (PDF). Icarus. 228: 217–246. arXiv:1310.2000. Bibcode:2014Icar..228..217T. doi:10.1016/j.icarus.2013.10.004. Retrieved 20 April 2018.
    9. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 20 April 2018.

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