Katie Keating Pablo Torne Doug Vakoch Ellen Howell Michael Nolan

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Presentation transcript:

Katie Keating Pablo Torne Doug Vakoch Ellen Howell Michael Nolan A05. Planetary Radar Katie Keating Pablo Torne Doug Vakoch Ellen Howell Michael Nolan Add background image of KW4?

Radar Astronomy Basics TRANSMIT SIGNAL ANALYZE ECHO GET OBJECT INFO Transmitted wave Echo from distant object

Rotational Velocity of Asteroid Object rotation → vradial → Doppler shift in frequency Gives combination of rotational velocity and radius vradial = ω ∙ r Fourier transform the echo to get the spectrum

Size of Asteroid D = c/2 ∙ t Round trip light travel time gives distance to surface D = c/2 ∙ t Knowing the size and rotational velocity of the asteroid gives its period #1 #2 #3 pole

Attempted Mercury Observations Use of 430 MHz AO radar to do this measurements on Mercury Broken

Attempted Mercury Observations Use of 430 MHz AO radar to do this measurements on Mercury Broken

2005NZ6 Asteroid S-Band Radar data from 6 April 2013 (62 images)