Minor Planet Radar Database
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163693 Atira (2003 CP20)
Classification:  [NEO]
H:16.3 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
2017 Jan Arecibo Arecibo 2380 [A]

Radar-Based Physical Properties
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Orbital Elements at Epoch 2019-04-27 00:00 TT from MPO469734 (heliocentric ecliptic J2000)
Element Value Units
e 0.3221221
a 0.740919 AU
i 25.62023 deg
om 103.88841 deg
w 252.88607 deg
ma 288.89129 deg
n 1.54542517 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
2010-01-10 13:48:00 0.23382 233.4 7.1
2010-05-15 13:24:00 0.37738 376.6 1.3
2015-07-17 21:35:00 0.43954 438.7 0.8
2017-01-18 20:03:00 0.20736 206.9 10.8
2017-05-25 21:00:00 0.35623 355.5 1.6
2018-11-21 04:24:00 0.48483 483.9 0.6
2022-07-27 21:56:00 0.47144 470.5 0.6
2024-01-26 20:40:00 0.22460 224.2 8.2
2024-06-04 20:34:00 0.35130 350.6 1.7
2025-12-05 06:08:00 0.42869 427.8 0.8

Link to complete Close-Approach Data on SBDB at JPL