7167 Laupheim
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 | |
| Discovery[1] | |
|---|---|
| Discovered by | C. S. Shoemaker E. M. Shoemaker |
| Discovery site | Palomar Obs. |
| Discovery date | 12 October 1985 |
| Designations | |
| (7167) Laupheim | |
Named after | Laupheim Observatory[1] (Robert Clausen and team) |
| 1985 TD3 · 1991 VR4 | |
| main-belt[1][2] · (outer) background[3] | |
| Orbital characteristics[2] | |
| Epoch 23 March 2018 (JD 2458200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 32.04 yr (11,702 d) |
| Aphelion | 3.7768 AU |
| Perihelion | 2.4740 AU |
| 3.1254 AU | |
| Eccentricity | 0.2084 |
| 5.53 yr (2,018 d) | |
| 280.23° | |
| 0° 10m 42.24s / day | |
| Inclination | 23.495° |
| 219.57° | |
| 181.55° | |
| TJupiter | 3.0550 |
| Physical characteristics | |
| 17.86 km (calculated)[4] 17.95±5.00 km[5] 20.03±0.78 km[6] 23.229±0.258 km[7][8] | |
| 7.040±0.0040 h[9] | |
| 0.057±0.011[7][8] 0.057 (assumed)[4] 0.058±0.005[6] 0.08±0.06[5] | |
| C (assumed)[4] | |
| 11.9[8] 12.00[5] 12.019±0.002 (R)[9] 12.1[2] 12.23±0.23[10] 12.30[6] 12.47[4] | |
7167 Laupheim, provisional designation 1985 TD3, is a dark background asteroid from the outer regions of the asteroid belt, approximately 20 kilometers (12 miles) in diameter. It was discovered on 12 October 1985, by American astronomers Carolyn and Eugene Shoemaker at the Palomar Observatory in California. The presumed C-type asteroid has a rotation period of 7.04 hours and was named for Robert Clausen and his team at the public Laupheim Observatory in Germany.[1][4]
Laupheim is a non-family asteroid from the main belt's background population.[3] It orbits the Sun in the outer main-belt at a distance of 2.5–3.8 AU once every 5 years and 6 months (2,018 days; semi-major axis of 3.13 AU). Its orbit has an eccentricity of 0.21 and an inclination of 23° with respect to the ecliptic.[2] The body's observation arc begins at Palomar in September 1985, about a month before its official discovery observation.[1]
Physical characteristics
Laupheim is an assumed carbonaceous C-type asteroid.[4]
Rotation period
In October 2013, a rotational lightcurve of Laupheim was obtained from photometric observations by astronomers at the Palomar Transient Factory in California. Lightcurve analysis gave a rotation period of 7.040 hours with a brightness amplitude of 0.31 magnitude (U=2).[9]
Diameter and albedo
According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Laupheim measures between 17.95 and 23.229 kilometers in diameter and its surface has an albedo between 0.057 and 0.08.[5][6][7][8]
The Collaborative Asteroid Lightcurve Link assumes a standard albedo for a carbonaceous asteroid of 0.057 and calculates a diameter of 17.86 kilometers based on an absolute magnitude of 12.47.[4]
