2423 Ibarruri information

2423 Ibarruri
Discovery
Discovered by	L. Zhuravleva
Discovery site	Crimean Astrophysical Obs.
Discovery date	14 July 1972
Designations
MPC designation	(2423) Ibarruri
Named after	Rubén Ibárruri; (Hero of the Soviet Union)
Alternative designations	1972 NC · 1930 SV; 1943 TB · 1956 VC; 1972 PB
Minor planet category	Mars-crosser
Orbital characteristics
	Epoch 4 September 2017 (JD 2458000.5)
	Uncertainty parameter 0
Observation arc	60.59 yr (22,129 days)
Aphelion	2.8068 AU
Perihelion	1.5702 AU
Semi-major axis	2.1885 AU
Eccentricity	0.2825
Orbital period (sidereal)	3.24 yr (1,183 days)
Mean anomaly	315.42°
Inclination	4.0571°
Longitude of ascending node	264.96°
Argument of perihelion	80.645°
Physical characteristics
Dimensions	4.899±1.085; 6.50 km (calculated)
Synodic rotation period	73.08±0.10 h; 139.79±0.04 h; 139.9±0.2 h; 139.92±0.01 h
Geometric albedo	0.20 (assumed); 0.330±0.167
Spectral type	SMASS = A ; L · S · C
Absolute magnitude (H)	13.3 · 13.44±1.15 · 13.20 · 13.3

2423 Ibarruri, provisional designation 1972 NC, is an eccentric, tumbling and rare-type asteroid, classified as slow rotator and sizable Mars-crosser from the inner regions of the asteroid belt, approximately 5 kilometers in diameter.

The asteroid was discovered by Russian–Ukrainian astronomer Lyudmila Zhuravleva at the Crimean Astrophysical Observatory in Nauchnyj, on 14 July 1972.^[4] It was named after Spanish communist Rubén Ruiz Ibárruri.^[2]

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