657 Gunlöd

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657 Gunlöd
Discovery
Discovered by August Kopff
Discovery site Heidelberg
Discovery date 23 January 1908
Designations
MPC designation (657) Gunlöd
1908 BV; 1927 SC;
1929 AM; 1936 YJ
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 107.90 yr (39412 d)
Aphelion 2.9049 AU (434.57 Gm)
Perihelion 2.3187 AU (346.87 Gm)
2.6118 AU (390.72 Gm)
Eccentricity 0.11223
4.22 yr (1541.7 d)
207.017°
0° 14m 0.636s / day
Inclination 10.229°
297.595°
245.225°
Earth MOID 1.34359 AU (200.998 Gm)
Jupiter MOID 2.16895 AU (324.470 Gm)
Jupiter Tisserand parameter 3.378
Physical characteristics
Mean radius
21.26±0.7 km
15.6652 h (0.65272 d)
0.0415±0.003
10.93

657 Gunlöd is a C-type asteroid orbiting in the Main belt near the Eunomia family. However, it is not a family member but an un-related interloper in the region because its composition is inconsistent with membership. Its diameter is about 43 km, its albedo around 0.042,[2] and its rotation period is 15.7 hours.[3]

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