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Katie Keating Pablo Torne Doug Vakoch Ellen Howell Michael Nolan

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Presentation on theme: "Katie Keating Pablo Torne Doug Vakoch Ellen Howell Michael Nolan"— Presentation transcript:

1 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?

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

3 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

4 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

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

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

7 2005NZ6 Asteroid S-Band Radar data from 6 April (62 images)

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