2253 Espinette

2253 Espinette
Discovery
Discovered by	G. van Biesbroeck
Discovery site	Yerkes Obs.
Discovery date	30 July 1932
Designations
MPC designation	(2253) Espinette
Named after	Espinette; (discoverer's residence)
Alternative designations	1932 PB · 1939 RJ; 1953 VB1 · 1970 PM; 1977 TG
Minor planet category	Mars-crosser
Orbital characteristics
	Epoch 4 September 2017 (JD 2458000.5)
	Uncertainty parameter 0
Observation arc	84.74 yr (30,953 days)
Aphelion	2.9195 AU
Perihelion	1.6477 AU
Semi-major axis	2.2836 AU
Eccentricity	0.2785
Orbital period (sidereal)	3.45 yr (1,260 days)
Mean anomaly	228.40°
Mean motion	0° 17m 8.16s / day
Inclination	3.8804°
Longitude of ascending node	143.96°
Argument of perihelion	175.75°
Physical characteristics
Dimensions	7.03 km (derived)
Synodic rotation period	7.3±0.2 h; 7.440±0.002 h; 7.442±0.001; 7.442±0.002 h
Geometric albedo	0.20 (assumed)
Spectral type	SMASS = Sl · S
Absolute magnitude (H)	12.8 · 13.13±0.12 · 16.06±0.31

2253 Espinette, provisional designation 1932 PB, is a stony asteroid and sizable Mars-crosser from the innermost regions of the asteroid belt, approximately 7 kilometers in diameter. Discovered by George Van Biesbroeck in 1932, the asteroid was named after the discoverer's residence "Espinette".

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2253 Espinette

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