Global Information4177 Kohman information
| Discovery [1] | |
|---|---|
| Discovered by | E. Bowell |
| Discovery site | Anderson Mesa Stn. |
| Discovery date | 21 September 1987 |
| Designations | |
MPC designation | (4177) Kohman |
Named after | Truman P. Kohman [1] (American nuclear chemist) |
Alternative designations | 1987 SS1 |
Minor planet category | main-belt [1] · (outer)[2] Griqua [3] · (2:1 res)[4] |
| Orbital characteristics [2] | |
| Epoch 23 March 2018 (JD 2458200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 33.68 yr (12,300 d) |
| Aphelion | 4.2465 AU |
| Perihelion | 2.3574 AU |
Semi-major axis | 3.3020 AU |
| Eccentricity | 0.2861 |
Orbital period (sidereal) | 6.00 yr (2,192 d) |
Mean anomaly | 23.119° |
Mean motion | 0° 9m 51.48s / day |
| Inclination | 17.174° |
Longitude of ascending node | 210.69° |
Argument of perihelion | 157.88° |
| Physical characteristics | |
Mean diameter | 11.059±0.229 km[5] |
Geometric albedo | 0.120±0.033[5] |
Absolute magnitude (H) | 13.0[2] |
4177 Kohman, provisional designation 1987 SS1, is a resonant Griqua asteroid from the outermost regions of the asteroid belt, approximately 11 kilometers (6.8 miles) in diameter. It was discovered on 21 September 1987, by American astronomer Edward Bowell at the Anderson Mesa Station of the Lowell Observatory near Flagstaff, Arizona, in the United States.[1] The asteroid was named for American nuclear chemist Truman Kohman.[1][6]
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