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LINEAR

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C/1999 S4 (LINEAR)

Orbital elements

Semi-major axis
-7,064.946 AU
Eccentricity
1.0001
Inclination
149.38°
Perihelion
0.765 AU
Longitude of ascending node
83.18°
Argument of periapsis
151.05°
Epoch · J2000
JD 2451751.66283 (perihelion)
Orbit class · HYP
Hyperbolic comet
Earth MOID · 67.6 LD
0.1736 AU

Orbit quality

Observations used
1,230
Data arc
300 days
First observed
27 September 1999
Last observed
23 July 2000
Residual RMS
0.72 ″
Solution · Otto Matic
15 April 2021

Visual & observation

Absolute magnitude (H)
9.6
Total magnitude M₁ · K₁ 6.5
9.6

Discovery & classification

Also known as 1999 S4

Named

Sources