435 Ella

435 Ella
	A three-dimensional model of 435 Ella based on its light curve.
Discovery
Discovered by	M. Wolf,; A. Schwassmann
Discovery date	11 September 1898
Designations
Alternative designations	1898 DS
Minor planet category	Main belt
Orbital characteristics
	Epoch 31 July 2016 (JD 2457600.5)
	Uncertainty parameter 0
Observation arc	117.60 yr (42955 d)
Aphelion	2.8297 AU (423.32 Gm)
Perihelion	2.0688 AU (309.49 Gm)
Semi-major axis	2.4492 AU (366.40 Gm)
Eccentricity	0.15533
Orbital period (sidereal)	3.83 yr (1400.1 d)
Average orbital speed	19.03 km/s
Mean anomaly	265.450°
Mean motion	0° 15m 25.668s / day
Inclination	1.8168°
Longitude of ascending node	23.192°
Argument of perihelion	333.682°
Earth MOID	1.06376 AU (159.136 Gm)
Jupiter MOID	2.59888 AU (388.787 Gm)
TJupiter	3.479
Physical characteristics
Dimensions	41.49±1.5 km
Synodic rotation period	4.623 h (0.1926 d)
Geometric albedo	0.0831±0.006
Absolute magnitude (H)	10.23

435 Ella is a typical Main belt asteroid. It was discovered by Max Wolf and A. Schwassmann on September 11, 1898 in Heidelberg.

Photometric observations during 1995 show a rotation period of 4.264 hours. 435 Ella is classified as a DCX-type asteroid.^[2]

References

^ "435 Ella (1898 DS)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 10 May 2016.
^ Piironen, J.; et al. (March 1998), "Physical studies of asteroids. XXXII. Rotation periods and UBVRI-colours for selected asteroids", Astronomy and Astrophysics Supplement, 128: 525–540, Bibcode:1998A&AS..128..525P, doi:10.1051/aas:1998393.

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