Asteroid Radar Database
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18 Melpomene
Classification:  []
H:6.53 mag, G:0.15

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History of Radar Detections
Year Month Transmitter Receiver Frequency Obs
1985 Dec Arecibo Arecibo 2380 [A]
1995 Sep Goldstone Goldstone 8560 [G]

Radar-Based Physical Properties

Orbital Elements at Epoch 2021-07-05 00:00 TT from MPO636060 (heliocentric ecliptic J2000)
Element Value Units
e 0.2177374
a 2.2960784 AU
i 10.1324 deg
om 150.36184 deg
w 228.1074 deg
ma 133.73534 deg
n 0.28328528 deg/d

Link to complete orbital information at Minor Planet Center