Brief table of Contents 1. Background on Polysat 2. Interesting - - PowerPoint PPT Presentation

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Jan 17, 2023 287 likes •477 views

Brief table of Contents 1. Background on Polysat 2. Interesting missions Polysat is working on 3. How my research here relates to Polysat What is Polysat Polysat is an on campus research lab on Cal Poly campus. Students must

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Brief table of Contents

1. Background on Polysat 2. Interesting missions Polysat is working on 3. How my research here relates to Polysat

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What is Polysat

Polysat is an on campus research

lab on Cal Poly campus.

Students must apply to get in.
Polysat consists of about 60

students

Advisors, you probably wouldn’t know them...

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What does polysat do

Satellites Testing PPOD Deployers

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Facilities

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How is polysat organized

Advisors Staff Student Lab Manager Team Leads Mechanical Team Aerospace Team Software Team Electrical Team ATLO Team Teams

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Current Projects

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Lightsail 2

Tested at Cal Poly
Operations conducted through

Polysat

Using some Polysat hardware
Some software written by Dr.

Bellardo

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Pocket Rocket

Radiothermal Thruster
ISP ~ 60s
Argon fuel
Led by Dr. Amelia Greig

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ISX (Ionospheric Explorer)

Listened to Television signals and

measures their distortion

Dead on arrival

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ADE (Atmospheric Drag Experiment)

Testing an experimental sail to deorbit spacecraft

faster

Bus designed and built by Polysat, dragsail by

Purdue.

Designed for Geosynchronous orbit
Travels through Van-Allen belts
2-3 kg due to radiation shielding

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LEO (Launch Environment Explorer)

Outreach mission with a highschool

in California.

Measured vibrations during launch

and communicated with a 1U over wifi during launch.

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Exocube II

Contains a mass-spectrometer from NASA Goddard Will measure ion concentrations in the exosphere Attitude controlled by: 1. Gravity booms 2. 3 magnetorquers 3. 1 reaction wheel

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Exocube I failure

Antenna deployment failure

○ Could still communicate, but signal was faint

Possible cause of ISX failure
Mission was still successful

Thank you Stanford!

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My Research (Degradation of burn wires)

Investigating failsafe deployment

mechanism

Measuring the degradation of

various materials in atomic oxygen and ultraviolet radiation environments

Current Polysat deployment mechanism

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My results so far

200-400 nm 100-200 nm

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