Minor Planet Radar Database
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(2012 HM)
Classification: APO [NEO]
H:24.1 mag, G:0.15

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History of Radar Detections
Year Month Transmitter Receiver Frequency Obs
2012 Apr Goldstone Goldstone 8560 [G]

Radar-Based Physical Properties
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Orbital Elements at Epoch 2019-04-27 00:00 TT from MPO437980 (heliocentric ecliptic J2000)
Element Value Units
e 0.1975741
a 1.1752661 AU
i 7.14865 deg
om 39.01962 deg
w 230.19838 deg
ma 141.45453 deg
n 0.77357026 deg/d

Link to complete orbital information at Minor Planet Center

Earth Close-Approach Data (+/- 10 years)
date nominal distance RTT SNR/run at Arecibo
2012-04-28 10:06:00 0.00372 3.7 0.0
2012-10-11 10:36:00 0.26585 265.3 0.0
2017-01-24 09:46:00 0.40622 405.4 0.0
2017-09-10 12:26:00 0.33508 334.4 0.0
2021-12-02 23:14:00 0.42016 419.3 0.0
2026-05-18 05:57:00 0.07964 79.5 1.6
2026-09-27 07:24:00 0.21962 219.2 0.1

Link to complete Close-Approach Data on SBDB at JPL