Gaspra

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Gaspra
Gaspra is an S-type asteroid that orbits very close to the inner edge of the asteroid belt. Gaspra was the first asteroid ever to be closely approached when it was visited by the Galileo spacecraft, which flew by on its way to Jupiter on 29 October 1991. Gaspra appears to be fairly olivine-rich among the S-type asteroids (the surface appears to contain olivine and pyroxene in the proportions 4:1 to 7:1). There are no prominent albedo or color patterns, although a subtle color variation is seen across the surface. 951 Gaspra - Wikipedia, the free encyclopedia
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Additional Information

Short Description Gaspra is an S-type asteroid that orbits very close to the inner edge of the asteroid belt. Gaspra was the first asteroid ever to be closely approached when it was visited by the Galileo spacecraft, which flew by on its way to Jupiter on 29 October 1991. Gaspra appears to be fairly olivine-rich among the S-type asteroids (the surface appears to contain olivine and pyroxene in the proportions 4:1 to 7:1). There are no prominent albedo or color patterns, although a subtle color variation is seen across the surface. 951 Gaspra - Wikipedia, the free encyclopedia
Discovered by Grigory Nikolayevich Neujmin
Discovery date 30 July 1916
Type Asteroid
AddInfo Flora family
Satellite of Sun
Minor planet number 951
Orbit Prograde
Rotation Direct
Apoapsis 09 388 102 000 km
Periapsis 90 272 985 000 km
Semi-major axis 09 330 544 000 km
Distance from Sun 01 2.210 au
Eccentricity 0.174
Orbital period 3.28 year | 1199.647 days
Orbital speed 02 19.88 km/s
Mean anomaly 053.057°
Inclination to the ecliptic 004.102°
Longitude of the ascending node 253.218°
Argument of periapsis 129.532°
Diameter/Size 02 12.2 km
Dimensions 18.2×10.5×8.9 km
Mass 1016×2.5 kg
Density 01 2.7 g/cm3
Surface gravity  0.002 m/s2
Escape velocity 01 6 m/s
Rotation period 0.293 day | 7.042 hour
Albedo geometric 0.22
Temperature mean 02 181 K
Temperature max 02 281 K | +8°C
Absolute magnitude 11.46
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