(163243) 2002 FB3

Last updated

(163243) 2002 FB3
Discovery [1]
Discovered by LINEAR
Discovery site Lincoln Lab's ETS
Discovery date18 March 2002
Designations
(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]

    Contents

    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]

    History of close approaches of large near-Earth objects since 1908 (A)
    PHA DateApproach distance (lunar dist.) Abs.
    mag
    ( H )    		Diameter (C)
    (m)    		Ref (D)
    Nomi-
    nal(B)    		Mini-
    mum    		Maxi-
    mum
    (33342) 1998 WT24 1908-12-163.5423.5373.54717.9556–1795 data
    (458732) 2011 MD5 1918-09-170.9110.9090.91317.9556–1795 data
    (7482) 1994 PC1 1933-01-172.9272.9272.92816.8749–1357 data
    69230 Hermes 1937-10-301.9261.9261.92717.5668–2158 data
    69230 Hermes1942-04-261.6511.6511.65117.5668–2158 data
    (137108) 1999 AN10 1946-08-072.4322.4292.43517.9556–1795 data
    (33342) 1998 WT24 1956-12-163.5233.5233.52317.9556–1795 data
    (163243) 2002 FB3 1961-04-124.9034.9004.90616.41669–1695 data
    (192642) 1999 RD32 1969-08-273.6273.6253.63016.31161–3750 data
    (143651) 2003 QO104 1981-05-182.7612.7602.76116.01333–4306 data
    2017 CH1 1992-06-054.6913.3916.03717.9556–1795 data
    (170086) 2002 XR14 1995-06-244.2594.2594.26018.0531–1714 data
    (33342) 1998 WT24 2001-12-164.8594.8594.85917.9556–1795 data
    4179 Toutatis 2004-09-294.0314.0314.03115.32440–2450 data
    2014 JO25 2017-04-194.5734.5734.57317.8582–1879 data
    (137108) 1999 AN10 2027-08-071.0141.0101.01917.9556–1795 data
    (35396) 1997 XF11 2028-10-262.4172.4172.41816.9881–2845 data
    (154276) 2002 SY50 2071-10-303.4153.4123.41817.6714–1406 data
    (164121) 2003 YT1 2073-04-294.4094.4094.40916.21167–2267 data
    (385343) 2002 LV 2076-08-044.1844.1834.18516.61011–3266 data
    (52768) 1998 OR2 2079-04-164.6114.6114.61215.81462–4721 data
    (33342) 1998 WT24 2099-12-184.9194.9194.91917.9556–1795 data
    (85182) 1991 AQ 2130-01-274.1404.1394.14117.11100 data
    314082 Dryope 2186-07-163.7092.9964.78617.5668–2158 data
    (137126) 1999 CF9 2192-08-214.9704.9674.97318.0531–1714 data
    (290772) 2005 VC 2198-05-051.9511.7912.13417.6638–2061 data
    (A) List includes near-Earth approaches of less than 5 lunar distances (LD) of objects with H brighter than 18.
    (B) Nominal geocentric distance from the Earth's center to the object's center (Earth radius≈0.017 LD).
    (C) Diameter: estimated, theoretical mean-diameter based on H and albedo range between X and Y.
    (D) Reference: data source from the JPL SBDB, with AU converted into LD (1 AU≈390 LD)
    (E) Color codes:   unobserved at close approach  observed during close approach  upcoming approaches

    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]

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    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". The Astrophysical Journal. 741 (2): 25. arXiv: 1109.6407 . Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. S2CID   118700974.
    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". The Astronomical Journal. 154 (4): 10. arXiv: 1708.09504 . Bibcode:2017AJ....154..168M. doi: 10.3847/1538-3881/aa89ec . S2CID   45334910.
    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". The Astrophysical Journal. 743 (2): 17. arXiv: 1109.6400 . Bibcode:2011ApJ...743..156M. doi:10.1088/0004-637X/743/2/156. S2CID   239991.
    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.
    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". Icarus. 228: 217–246. arXiv: 1310.2000 . Bibcode:2014Icar..228..217T. doi:10.1016/j.icarus.2013.10.004. S2CID   119278697.
    9. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 20 April 2018.
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