(3708) 1974 FV1

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(3708) 1974 FV1
Discovery [1]
Discovered by University of Chile
Discovery site Cerro El Roble Obs.
Discovery date 21 March 1974
MPC designation (3708) 1974 FV1
1974 FV1 · 1930 XF
1953 SG · 1965 TA
1974 HN3 · 1975 NQ
Jupiter trojan[1][2]
Orbital characteristics[3]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 85.40 yr (31,191 days)    
Aphelion 6.0423 AU
Perihelion 4.3934 AU
5.2178 AU
Eccentricity 0.1580
11.92 yr (4,353 days)
0° 4m 57.72s / day
Inclination 13.368°
Jupiter MOID 0.2934 AU
Jupiter Tisserand parameter 2.9210
Physical characteristics
Dimensions 75.66±0.81 km[4]
76.75±2.93 km[5]
79.59±4.5 km (IRAS:5)[3]
79.67 km (derived)[2]
6.520±0.003 h[6]
6.55±0.01 h[a]
6.553±0.008 h[7]
0.0531±0.007 (IRAS:5)[3]
0.0581 (derived)[2]

(3708) 1974 FV1 is a carbonaceous asteroid, classified as Jupiter trojan, approximately 80 kilometers in diameter. It was discovered on 21 March 1974, by staff members of the Cerro El Roble Observatory owned and operated by the Department of Astronomy of the University of Chile.[1] As of 2016, it is the lowest-numbered unnamed minor planet.[9]

This dark C-type Jovian trojan is orbiting in the trailing Trojan camp, at Jupiter's L5 Lagrangian point 60° behind its orbit. It orbits the Sun at a distance of 4.4–6.0 AU once every 11 years and 11 months (4,353 days). Its orbit has an eccentricity of 0.16 and an inclination of 13° with respect to the ecliptic.[3] The first precovery was taken at Lowell Observatory in 1930, extending the asteroid's observation arc by 44 years prior to its discovery.[1]

In January 2015 and February 2016, two rotational light-curve for this Jovian trojan were obtained from photometric observations by Robert Stevens at the U.S. Center for Solar System Studies (CS3), California. They rendered a rotation period of 6.520±0.003 and 6.55±0.01 hours with a brightness amplitude of 0.31 and 0.20 in magnitude, respectively (U=3-/n.a.).[6][a] The results concur with a previously obtained light-curve by Stefano Mottola and Mario Di Martino, using the 1-meter ESO telescope at ESO's La Silla site, Chile, in February 1993. It gave a period of 6.553±0.008 with an amplitude of 0.23 in magnitude (U=3).[7]

According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the asteroid's diameter measures 75.7 to 79.6 kilometers and its surface has a typically low albedo between 0.053 and 0.059.[3][5][4] The Collaborative Asteroid Lightcurve Link (CALL) derives an albedo of 0.058 and a diameter of 79.7 kilometers.[2]


  1. ^ a b Stephens (2016) web: rotation period 6.55±0.01 hours with a brightness amplitude of 0.20 mag. Light-curve has no LCDB quality code assigned. Summary figures at Collaborative Asteroid Lightcurve Link (CALL) for (3708) 1974 FV1
  1. ^ a b c d "3708 (1974 FV1)". Minor Planet Center. Retrieved March 2016. 
  2. ^ a b c d e f "LCDB Data for (3708)". Asteroid Lightcurve Database (LCDB). Retrieved March 2016. 
  3. ^ a b c d e f "JPL Small-Body Database Browser: 3708 (1974 FV1)" (2016-04-19 last obs.). Jet Propulsion Laboratory. Retrieved May 2016. 
  4. ^ a b c d 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. Retrieved May 2016. 
  5. ^ a b c d Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. Retrieved May 2016. 
  6. ^ a b Stephens, Robert D.; Coley, Daniel, R.; French, Linda M. (January 2016). "Large L5 Jovian Trojan Asteroid Lightcurves from the Center for Solar System Studies". The Minor Planet Bulletin 43 (1): 15–22. Bibcode:2016MPBu...43...15S. ISSN 1052-8091. Retrieved May 2016. 
  7. ^ a b Mottola, Stefano; Di Martino, Mario; Erikson, Anders; Gonano-Beurer, Maria; Carbognani, Albino; Carsenty, Uri; et al. (May 2011). "Rotational Properties of Jupiter Trojans. I. Light Curves of 80 Objects". The Astronomical Journal 141 (5): 32. Bibcode:2011AJ....141..170M. doi:10.1088/0004-6256/141/5/170. Retrieved May 2016. 
  8. ^ Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus 261: 34–47. arXiv:1506.00762. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved May 2016. 
  9. ^ "Statistics of diacritical characters in Minor Planets Names". January 2013. Retrieved March 2016. 

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