(7348) 1993 FJ22

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(7348) 1993 FJ22
Discovery [1]
Discovered by UESAC
Discovery site ESOLa Silla Obs.
Discovery date 21 March 1993
Designations
MPC designation (7348) 1993 FJ22
1993 FJ22 · 1933 FU
1978 NM5 · 1991 XF3
main-belt · Themis[2]
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 82.39 yr (30,094 days)
Aphelion 3.4227 AU
Perihelion 2.7595 AU
3.0911 AU
Eccentricity 0.1072
5.43 yr (1,985 days)
98.375°
Inclination 0.8718°
10.997°
151.27°
Physical characteristics
Dimensions 9.91 km (calculated)[2]
3.4735±0.0031 h[3]
3.470±0.020 h[4]
0.08 (assumed)[2]
C[2]
12.9[1]
12.780±0.050[4]
12.929±0.001[3]
13.38[2]

(7348) 1993 FJ22 is an unnamed, carbonaceous, Themistian asteroid from the outer region of the asteroid belt, about 10 kilometers in diameter. It was discovered on 21 March 1993, by the Uppsala-ESO Survey of Asteroids and Comets (UESAC) at ESO's La Silla Observatory site in northern Chile.[5]

The dark C-type asteroid is a member of the Themis family, a dynamical family of outer-belt asteroids with nearly coplanar ecliptical orbits.[2] It orbits the Sun at a distance of 2.8–3.4 AU once every 5 years and 5 months (1,985 days). Its orbit has an eccentricity of 0.11 and an inclination of 1° with respect to the ecliptic. The asteroid's long observation arc of more than 80 years is due to precovery observations that date back to 1933, for which the body was assigned the provisional designation "1933 FU".[1]

In 2014, two photometric light-curve observations at the U.S. Palomar Transient Factory, California, rendered a rotation period of 3.4735±0.0031 and 3.470±0.020 hours with a brightness amplitude of 0.10 and 0.13 in magnitude, respectively (U=2).[3][4]

The Collaborative Asteroid Lightcurve Link (CALL) assumes that the asteroid's surface has a low albedo of 0.08 and calculates its diameter to measure 9.9 kilometers, based on an absolute magnitude of 13.38.[2]

References

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  3. 3.0 3.1 3.2 Lua error in package.lua at line 80: module 'strict' not found.
  4. 4.0 4.1 4.2 Lua error in package.lua at line 80: module 'strict' not found.
  5. Lua error in package.lua at line 80: module 'strict' not found.

External links


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