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Planets and Comets with Radar. John Harmon. Mercury. North polar ice. Mariner unimaged hemisphere. South polar ice. Kuiper. Kuiper - depolarized. Kuiper - polarized. “A”. Feature A - depolarized. Feature A - polarized. Mercury Polar “Ice” Features. Pre-upgrade data
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Planets and Comets with Radar John Harmon
Mercury North polar ice Mariner unimaged hemisphere South polar ice
Mercury Polar “Ice” Features Pre-upgrade data 15-km resolution Chao Meng-Fu crater
Post-upgrade data 1.5-km resolution
polarized long-code method standard method depolarized
Mars delay-Doppler array radar map
Marte Vallis lava flows – MGS image
Ascraeus Mons Arsia Mons Pavonis lava apron Daedalia Planum flows Elysium Mons Olympus Mons Marte Vallis Olympus basal plains
Comet Radar Detections Comet Year A.U. Components Arecibo Goldstone Both
IRAS-Araki-Alcock Hyakutake
C/2001 A2 (LINEAR) First solid detection of coma echo depolarization C/2002 O6 (SWAN)
Upcoming Short-Period Comets Comet Date Dist. (AU)