Minor Planet Radar Database
  Return to list of asteroid radar detections  

(2019 GJ4)
Classification: ATE [NEO]
H:26 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
2019 Apr Arecibo Arecibo 2380 [A]

Radar-Based Physical Properties
                 [edit]

Orbital Elements at Epoch 2019-04-27 00:00 TT from MPO467551 (heliocentric ecliptic J2000)
Element Value Units
e 0.1681055
a 0.9868245 AU
i 6.95301 deg
om 196.5122 deg
w 252.74866 deg
ma 108.11124 deg
n 1.00541221 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
2017-04-17 19:46:00 0.36226 361.5 0.0
2018-04-10 06:36:00 0.18309 182.7 0.0
2019-04-04 23:37:00 0.00684 6.8 1365.8
2020-04-18 15:23:00 0.11170 111.5 0.1
2021-01-11 10:20:00 0.19008 189.7 0.0
2021-06-03 00:50:00 0.17748 177.1 0.0
2021-12-06 01:04:00 0.18699 186.6 0.0
2022-07-23 05:22:00 0.17730 176.9 0.0
2022-10-30 13:13:00 0.14304 142.8 0.1
2023-09-24 10:12:00 0.06727 67.1 0.8
2024-09-09 06:46:00 0.09804 97.8 0.2
2025-09-01 04:43:00 0.21245 212.0 0.0
2026-08-25 08:45:00 0.33564 335.0 0.0
2027-08-18 23:30:00 0.46017 459.3 0.0

Link to complete Close-Approach Data on SBDB at JPL