Minor Planet Radar Database
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(2012 HL)
Classification: AMO [NEO]
H:22.5 mag, G:0.15

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History of Radar Detections
Year Month Transmitter Receiver Frequency Obs
2012 Apr Arecibo Arecibo 2380 [A]

Radar-Based Physical Properties
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Orbital Elements at Epoch 2019-04-27 00:00 TT from MPO456825 (heliocentric ecliptic J2000)
Element Value Units
e 0.5201492
a 2.0939135 AU
i 9.27103 deg
om 210.21343 deg
w 40.63584 deg
ma 101.85403 deg
n 0.32528644 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
2012-05-07 00:16:00 0.05389 53.8 18.6
2015-06-16 03:51:00 0.14339 143.1 0.6
2018-07-16 04:21:00 0.24396 243.5 0.1
2021-07-30 13:37:00 0.40491 404.1 0.0

Link to complete Close-Approach Data on SBDB at JPL