Minor Planet Radar Database
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18 Melpomene
Classification:  []
H:6.51 mag, G:0.25

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History of Radar Detections
Year Month Transmitter Receiver Frequency Obs
1985 Dec Arecibo Arecibo 2380 [A]
1995 Sep Goldstone Goldstone 8510 [G]

Radar-Based Physical Properties

Orbital Elements at Epoch 2019-04-27 00:00 TT from MPO467603 (heliocentric ecliptic J2000)
Element Value Units
e 0.2176744
a 2.2966536 AU
i 10.12873 deg
om 150.38387 deg
w 227.95081 deg
ma 267.2544 deg
n 0.28317887 deg/d

Link to complete orbital information at Minor Planet Center