Asteroid Radar Database
  Return to list of asteroid radar detections  

471240 (2011 BT15)
Classification: APO [NEO, PHA]
H:21.7 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
2013 Dec Goldstone Goldstone 8560 [G]

Radar-Based Physical Properties
                 [edit]

Orbital Elements at Epoch 2021-07-05 00:00 TT from E2021-EA9 (heliocentric ecliptic J2000)
Element Value Units
e 0.3022986
a 1.2929127 AU
i 1.66146 deg
om 105.36655 deg
w 308.81034 deg
ma 62.70701 deg
n 0.67042514 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
2013-08-19 00:40:00 0.31467 314.0 0.0
2013-12-28 15:33:00 0.03222 32.2 30.9
2016-09-15 09:22:00 0.05085 50.8 6.5
2017-02-22 16:39:00 0.37132 370.6 0.0
2019-08-24 00:01:00 0.40959 408.8 0.0

Link to complete Close-Approach Data on SBDB at JPL