| Discovery [1] | |
|---|---|
| Discovered by | F. Börngen |
| Discovery site | Karl Schwarzschild Obs. |
| Discovery date | 8 March 1964 |
| Designations | |
| (4003) Schumann | |
Named after | Robert Schumann (German composer)[2] |
| 1964 ED · 1933 FG1 1967 RK1 · 1968 UL3 1974 SE2 · 1978 GM4 1980 RH2 · 1980 TP6 1981 WV8 | |
| main-belt · (outer) [1][3] | |
| Orbital characteristics [1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 84.20 yr (30,753 days) |
| Aphelion | 3.7477AU |
| Perihelion | 3.1040 AU |
| 3.4258 AU | |
| Eccentricity | 0.0939 |
| 6.34yr (2,316 days) | |
| 343.35° | |
| 0° 9m 19.44s / day | |
| Inclination | 5.0589° |
| 189.31° | |
| 116.48° | |
| Physical characteristics | |
| Dimensions | 32.03 km(calculated)[3] 35.00±0.89 km[4] 36.115±0.245[5] 38.207±0.611 km[6] |
| 5.5984±0.0019h[7] 5.601±0.001 h[8] 5.6040±0.0019 h[7] 5.7502±0.0007 h[9] | |
| 0.0439±0.0089[6] 0.049±0.008[5] 0.057(assumed)[3] 0.072±0.004[4] | |
| C [3] | |
| 10.80[4] · 11.1[6] · 11.154±0.003(R)[7] · 11.186±0.002(R)[7] · 11.2[1][3] · 11.40±0.20[10] | |
4003 Schumann, provisional designation1964 ED, is a carbonaceousasteroid from the outer region of theasteroid belt, approximately 35 kilometers in diameter.
The asteroid was discovered on 8 March 1964, by German astronomerFreimut Börngen at theKarl Schwarzschild Observatory in Tautenburg, Eastern Germany.[11] It was named after German composerRobert Schumann.[2]
Schumann orbits the Sun in theouter main-belt at a distance of 3.1–3.7 AU once every 6 years and 4 months (2,316 days). Its orbit has aneccentricity of 0.09 and aninclination of 5° with respect to theecliptic.[1] The firstprecovery was obtained atHeidelberg Observatory in 1933, extending the asteroid'sobservation arc by 31 years prior to its discovery.[11]
Schumann has been characterized as a darkC-type asteroid.[3]
According to the space-based surveys carried out by the JapaneseAkari satellite and NASA'sWide-field Infrared Survey Explorer with itsNEOWISE mission,Schumann's surface has analbedo of 0.04 and 0.07, and an estimated diameter of 35.0 and 38.2 kilometers, respectively.[4][5][6] TheCollaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous bodies of 0.057, and calculates a diameter of 32.0 kilometers.[3]
Several photometriclightcurves ofSchumann gave arotation period between 5.60 and 5.75 hours with a brightness amplitude in the range of 0.20 to 0.23 inmagnitude (U=3-/2+/2).[9][8][7]
Thisminor planet was named in honor of German composer of theRomantic era,Robert Schumann (1810–1856), known for hisLieder,chamber works and cello concerti. He was born in Zwickau, in proximity to the discovering observatory in Tautenburg.[2] The official naming citation was published by theMinor Planet Center on 20 May 1989 (M.P.C. 14634).[12]
