Asteroid Radar Database
  Return to list of asteroid radar detections  

101 Helena
Classification:  []
H:8.23 mag, G:0.15

  MPC page for this object   |  JPL SBDB page for this object   |  ASTDyS page for this object  

History of Radar Detections
Year Month Transmitter Receiver Frequency Obs
2001 Oct Arecibo Arecibo 2380 [A]

Radar-Based Physical Properties

Orbital Elements at Epoch 2022-01-21 00:00 TT from MPO660785 (heliocentric ecliptic J2000)
Element Value Units
e 0.141187
a 2.5838046 AU
i 10.19779 deg
om 343.38324 deg
w 348.31226 deg
ma 350.73523 deg
n 0.23730919 deg/d

Link to complete orbital information at Minor Planet Center