2138 Swissair

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2138 Swissair
Discovery A
Discoverer Paul Wild
Discovery date April 17, 1968
Alternate
designations
B
1938 OH; 1942 JD; 1946 GA; 1968 HB; 1977 KE
Category Main belt
Orbital elements C
Epoch November 26, 2005 (JD 2453700.5)
Eccentricity (e) 0.067
Semi-major axis (a) 401.935 Gm (2.687 AU)
Perihelion (q) 375.172 Gm (2.508 AU)
Aphelion (Q) 428.699 Gm (2.866 AU)
Orbital period (P) 1608.588 d (4.40 a)
Mean orbital speed 18.15 km/s
Inclination (i) 5.931°
Longitude of the
ascending node
(Ω)
105.761°
Argument of
perihelion
(ω)
170.925°
Mean anomaly (M) 123.346°
Physical characteristics D
Dimensions 15.5 km
Mass 3.9×1015? kg
Density 2.0? g/cm³
Surface gravity 0.0043? m/s²
Escape velocity 0.0082? km/s
Rotation period  ? d
Spectral class  ?
Absolute magnitude 11.5
Albedo (geometric) 0.1?
Mean surface
temperature
~170 K
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2138 Swissair was the name given to an asteroid discovered on April 17, 1968 by Swiss astronomer Paul Wild at the Zimmerwald Observatory near Berne, Switzerland.

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