josh smith zachary blunier michael krauz matt pensa daniel lane trey keown
DESCRIPTION
quake rattle and roll. Josh Smith Zachary Blunier Michael Krauz Matt Pensa Daniel Lane Trey Keown. science objectives. Determine the inner structure of Europa Rough surface suggests inner geological activity Caused by either strong tremors or a flowing subsurface ocean - PowerPoint PPT PresentationTRANSCRIPT
Josh SmithZachary BlunierMichael Krauz
Matt PensaDaniel LaneTrey Keown
quakerattle
and roll
• Determine the inner structure of Europa
• Rough surface suggests inner geological activity• Caused by either strong tremors
or a flowing subsurface ocean• Very interesting candidate for
extraterrestrial life
scienceobjective
s
operational
strategy• Deploy Seismometer Measurement
Mechanisms (SMM) at predetermined locations
• Transfer seismic data back to orbiter as it orbits above
payloadspecs
• Two components: EDID and SMM• EDID is launcher (double-barreled
shotgun)• SMMs are ammo
SMM EDID
Dimensions 8 cm x 8 cm x 8 cm4 cm radius
Shell Thickness
0.5 cm
Weight 0.5 kgPower Internal battery
Dimensions 29cm x 18cm x 46cm
Weight 5 kgPower Passive; powered
by excess helium in propulsion tankmichael’s
previous
designs
zach’s
payloadtechnolog
y• SMMs has a battery, microprocessor, a
seismometer, and a UHF transmitter• Continuously collect data and beam
back when orbiter passes overhead• 16 samples/second, 720 bits/second, 50
mb/week
physicsbreakdow
n• Solved for tangential velocity• Found impact velocity from tangental
velocity• From impact velocity, found the
penetration depth and deceleration• From deceleration and Europa’s
gravitational constant, found g-force SMM must sustain
𝐹=𝑚𝑎
thank you.
questions or
comments?