 | |
| 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 | 32.04yr (11,702 d) |
| Aphelion | 3.7768AU |
| 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 designation1985 TD3, is a dark backgroundasteroid from the outer regions of theasteroid belt, approximately 20 kilometers (12 miles) in diameter. It was discovered on 12 October 1985, by American astronomersCarolyn andEugene Shoemaker at thePalomar Observatory in California. The presumedC-type asteroid has arotation period of 7.04 hours and was named for Robert Clausen and his team at the publicLaupheim Observatory in Germany.[1][4]
Laupheim is a non-family asteroid from the main belt'sbackground population.[3] It orbits the Sun in theouter 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 aneccentricity of 0.21 and aninclination of 23° with respect to theecliptic.[2] The body'sobservation arc begins at Palomar in September 1985, about a month before its official discovery observation.[1]
Laupheim is an assumed carbonaceousC-type asteroid.[4]
In October 2013, a rotationallightcurve ofLaupheim was obtained fromphotometric observations by astronomers at thePalomar Transient Factory in California. Lightcurve analysis gave arotation period of 7.040 hours with a brightness amplitude of 0.31magnitude (U=2).[9]
According to the surveys carried out by the JapaneseAkari satellite and theNEOWISE mission of NASA'sWide-field Infrared Survey Explorer,Laupheim measures between 17.95 and 23.229 kilometers in diameter and its surface has analbedo between 0.057 and 0.08.[5][6][7][8]
TheCollaborative Asteroid Lightcurve Link assumes a standard albedo for a carbonaceous asteroid of 0.057 and calculates a diameter of 17.86 kilometers based on anabsolute magnitude of 12.47.[4]
Thisminor planet was named for Robert Clausen (born 1951) and his team at the publicLaupheim Observatory (German:Volksternwarte Laupheim) inLaupheim, southern Germany.[1] It was named by the discovererCarolyn Shoemaker who visited the observatory in 1998. Clausen founded an association of amateur astronomers in 1975 which organized traveling astronomical exhibitions and numerous international astronomy festivals. Since 1990, he and his co-workers have also been running a Zeissplanetarium.[1][11]
The official naming citation was published by theMinor Planet Center on 4 May 1999 (M.P.C. 34625).[12]
