Post on 21-Jan-2016
Radar Observations and the Shape of 2008 EV5
Radar Speckles and Near-Earth Asteroids
Michael Busch
(with thanks to Jean-Luc Margot, Lance Benner,
Walter Brisken, and Adam Deller)
Radar Speckle Patterns
Target
Dtarget
d
Separation
Baseline (B)
Earth and
Antennas
LSpeckle = Dtarget/d
Radar Speckle Patterns
Kholin 1988, Margot et al. 2007
B
LSpeckle
Antenna 1
Antenna 2
Speckle Motion
Antenna 1
Antenna 2
Time
Echo Power
Projected
spin vector
Bcos()