Minor Planet Radar Database
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85989 (1999 JD6)
Classification: ATE [NEO, PHA]
H:17.1 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
2010 Jul Arecibo Arecibo 2380 [A]
2015 Jul Arecibo Arecibo 2380 [A]
2015 Jul Goldstone Goldstone 8560 [G]
2015 Jul Goldstone Green Bank Telescope 8560 [G-GBT]

Radar-Based Physical Properties
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Orbital Elements at Epoch 2019-04-27 00:00 TT from MPO474745 (heliocentric ecliptic J2000)
Element Value Units
e 0.6329128
a 0.883121 AU
i 17.05837 deg
om 130.1837 deg
w 309.21171 deg
ma 123.07311 deg
n 1.1876097 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
2010-07-27 06:56:00 0.13858 138.3 45.5
2013-05-08 10:58:00 0.43710 436.2 0.8
2015-07-25 04:55:00 0.04842 48.3 1738.8
2018-05-02 12:39:00 0.35363 352.9 1.7
2020-07-20 12:59:00 0.13077 130.5 55.6
2023-04-27 08:07:00 0.30395 303.3 2.9
2024-06-21 08:28:00 0.49253 491.6 0.5
2025-07-16 02:09:00 0.24350 243.0 6.4
2028-04-21 12:49:00 0.29652 295.9 3.2
2029-06-30 04:03:00 0.45844 457.5 0.7

Link to complete Close-Approach Data on SBDB at JPL