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jettisoned before impact. Each penetrometer contains a two-
component seismometer, a heat flow probe, a tiltmeter, an
accelerometer, a radio transmitter and an antenna. The
instruments are powered by Li-SOCL2 (super lithium) batteries
with an expected lifetime of one year. The penetrators are
designed to withstand an impact force of 10,000 G.  

Launch Information:
Launch Date/Time: 2002-09-01
Launch Site/Country: Kagoshima, Japan
On-orbit dry mass: 520.00 kg
Launch Vehicle: M-5 

Orbital Information:
No orbital information is available. 

Project Manager
Prof. Hitoshi Mizutani
Institute of Space and
Astronautical Science
Yoshinodai 3-1-1, Sagamihara
Kanagawa 229 
Japan
MIZUTANI@PLANETA.SCI.ISAS.AC.JP  

Discipline(s)
Planetary Science 

Sponsoring Agencies/Countries
Institute of Space and Aeronautical Science, U of Tokyo/Japan
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