9909 Eschenbach

9909 Eschenbach

Orbit of 9909 Eschenbach (blue), planets (red) and the Sun (black). The outermost planet visible is Jupiter.
Discovery
Discovered by	C. J. van Houten, I. van Houten-Groeneveld & T. Gehrels
Discovery date	26 March 1971
Designations
MPC designation	9909 Eschenbach
Named after	Wolfram von Eschenbach
Alternative names	4355 T-1, 1969 VD2, 1994 RW4
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc	16680 days (45.67 yr)
Aphelion	2.7342612 AU (409.03965 Gm)
Perihelion	1.9615450 AU (293.44296 Gm)
Semi-major axis	2.3479031 AU (351.24130 Gm)
Eccentricity	0.1645545
Orbital period	3.60 yr (1314.1 d)
Mean anomaly	316.12164°
Mean motion	0° 16^m 26.248^s / day
Inclination	4.323807°
Longitude of ascending node	147.17419°
Argument of perihelion	240.26650°
Earth MOID	0.968448 AU (144.8778 Gm)
Jupiter MOID	2.71625 AU (406.345 Gm)
Jupiter Tisserand parameter	3.538
Physical characteristics
Dimensions	~23.4 km[2]
Geometric albedo	~0.01
Surface temp. min mean max Kelvin Celsius
Absolute magnitude (H)	13.8

9909 Eschenbach is a main belt asteroid. It orbits the Sun once every 3.60 years.^[1]

Discovered on March 26, 1971 by Cornelis Johannes van Houten and Ingrid van Houten-Groeneveld on photographic plates made by Tom Gehrels with the Samuel Oschin telescope at the Palomar Observatory, it was given the provisional designation "4355 T-1". It was later renamed "Eschenbach" after Wolfram von Eschenbach, a medieval poet.^[3]

References

1. "9909 Eschenbach (4355 T-1)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 13 April 2016.
2. Tedesco E.F.; Noah P.V.; Noah M.; Price S.D. "The supplemental IRAS minor planet survey (SIMPS)".
3. MPC 34356 Minor Planet Center

External links

• 9909 Eschenbach at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters