Asteroid Radar Database
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(2014 HM4)
Classification: APO [NEO]
H:26.9 mag, G:0.15

  MPC page for this object   |  JPL SBDB page for this object   |  NEODyS-2 page for this object   |  ESA SSA page for this object  

History of Radar Detections
Year Month Transmitter Receiver Frequency Obs
2014 Apr Arecibo Arecibo 2380 [A]

Radar-Based Physical Properties
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Orbital Elements at Epoch 2024-03-31 00:00 TT from MPO307080 (heliocentric ecliptic J2000)
Element Value Units
e 0.5299281
a 1.099014 AU
i 1.31371 deg
om 30.82686 deg
w 297.97706 deg
ma 172.70384 deg
n 0.8554591 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
2014-04-25 13:59:00 0.00423 4.2 0.0
2015-08-17 01:52:00 0.49544 494.4 0.0
2016-12-10 08:41:00 0.06034 60.2 0.6
2022-04-15 17:41:00 0.37532 374.6 0.0
2022-06-15 15:40:00 0.37700 376.2 0.0
2023-09-24 23:04:00 0.45457 453.7 0.0
2024-12-26 02:45:00 0.32929 328.6 0.0
2029-04-19 16:59:00 0.13881 138.5 0.0
2030-08-02 11:49:00 0.48713 486.2 0.0
2031-12-08 08:47:00 0.21089 210.5 0.0

Link to complete Close-Approach Data on SBDB at JPL