1269 Rollandia

Rollandia

Discovery
Discovered by	G. Neujmin
Discovery site	Simeis
Discovery date	20 September 1930
Designations
MPC designation	1269
Named after	Romain Rolland
Alternative names	1930 SH
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	109.32 yr (39928 days)
Aphelion	4.2983684 AU (643.02676 Gm)
Perihelion	3.5143253 AU (525.73558 Gm)
Semi-major axis	3.906347 AU (584.3812 Gm)
Eccentricity	0.100355
Orbital period	7.72 yr (2820.0 d)
Mean anomaly	225.61025°
Mean motion	0° 7^m 39.569^s / day
Inclination	2.757999°
Longitude of ascending node	134.72237°
Argument of perihelion	19.03260°
Earth MOID	2.52373 AU (377.545 Gm)
Jupiter MOID	0.697014 AU (104.2718 Gm)
Jupiter Tisserand parameter	3.054
Physical characteristics
Dimensions	105 km[1]
Mean radius	52.595±1.4 km
Rotation period	15.4 h (0.64 d)
Sidereal rotation period	15.4 hr[1]
Geometric albedo	0.0473±0.003[1]
Absolute magnitude (H)	8.82[1]

1269 Rollandia (1930 SH) is an asteroid in the outer asteroid belt discovered on September 20, 1930, by G. Neujmin at Simeis. It is one of the last asteroids that are above roughly 100 km in diameter discovered orbiting in the outer asteroid belt. IRAS data suggests the asteroid is 105.2 ± 2.8 km in diameter.^[1] 1390 Abastumani was discovered in 1935 and 1902 Shaposhnikov was discovered in 1972.

References

1. "JPL Small-Body Database Browser: 1269 Rollandia (1930 SH)". Jet Propulsion Laboratory. Retrieved 28 April 2016.

External links

• 1269 Rollandia at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters