Asteroid Radar Database
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140 Siwa
Classification:  []
H:8.45 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 2021-07-05 00:00 TT from MPO636062 (heliocentric ecliptic J2000)
Element Value Units
e 0.21415
a 2.7345874 AU
i 3.18538 deg
om 107.17602 deg
w 196.8935 deg
ma 232.81217 deg
n 0.21795476 deg/d

Link to complete orbital information at Minor Planet Center