Minor Planet Radar Database
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140 Siwa
Classification:  []
H:8.4 mag, G:0.15

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History of Radar Detections
Year Month Transmitter Receiver Frequency Obs
2005 Oct Arecibo Arecibo 2380 [A]

Radar-Based Physical Properties

Orbital Elements at Epoch 2020-05-31 00:00 TT from MPO525911 (heliocentric ecliptic J2000)
Element Value Units
e 0.2141401
a 2.734695 AU
i 3.18554 deg
om 107.17768 deg
w 196.81535 deg
ma 145.7487 deg
n 0.2179419 deg/d

Link to complete orbital information at Minor Planet Center