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Observation Mission

XRS :
X-ray Spectrometer

GRS :
Gamma-Ray Spectrometer

MI :
Multi band Imager

SP :
Spectral Profiler

TC :
Terrain Camera

LRS :
Lunar Radar Sounder

LALT :
Laser Altimeter

LMAG :
Lunar Magnetometer

CPS :
Charged Particle Spectrometer

PACE :
Plasma energy Angle and Composition Experiment

RS :
Radio Science

UPI :
Upper-atmosphere and Plasma Imager

RSAT :
Four way Doppler measurements by Relay satellite and Main Orbiter

VRAD :
Differential VLBI Radio Source

HDTV :
High Definition Television

Observation Areas

Landing Site

Land Features

Crater

Observation Target

Earth and Other Planets

Special Contents

QuickTime VR

First report -Sounder Mode- (1/3)

Updated : 2008.01.22

Observation date : 2007.11.20

The Lunar Radar Sounder (LRS) sounder mode was tested on November 20 and 21, 2007, and the performance of this mode was verified. The LRS sounder mode will measure the lunar subsurface structures down to a few kilometers in depth with the HF (5 MHz) radar instrument utilizing digital technology. The figure shows a good agreement with the simulated echoes in next page.