The Firefly Satellite Mission at Siena

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# The Firefly Satellite Mission at Siena - PowerPoint PPT Presentation

The Firefly Satellite Mission at Siena. Student Participation. Selected Student Projects. VLF Receiver Design Data Processing Digital Filter Design GIS &amp; Lightning Mapping. 12 Undergraduates 3 High-school Students 3 Departments Physics &amp; Astronomy Computer Science

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The Firefly Satellite Mission at Siena

Student Participation

Selected Student Projects

Data Processing

Digital Filter Design

GIS & Lightning Mapping

• 3 High-school Students
• 3 Departments
• Physics & Astronomy
• Computer Science
• Environmental Studies
• Classroom Integration
• PHYS 230: Electronics
• PHYS 250: Computational

Some Firefly Team Members

Students building satellites!

What are VLF and ELF Waves?

VLF waves recorded at Siena College

VLF Waves at About 24.8 KHz

Amplitude (Peak-to-Peak)

1 Cycle = 7.5 Miles (12 KM)

 Distance traveled over time 

How to make this Computation?

Speed of light: c = 186,000 Miles/Sec (300,000 KM/Sec)

Frequency: f = 24,800 Cycles/Sec

Wave Length:  = c / f Miles (or KM) / Cycle

SID

Low Cost (~\$150)

Single band

1 sample/5 seconds

Preassembled & tuned

Students build antenna

Available free to underserved schools from Stanford University.

AWESOME

Moderate cost (~\$3000)

Broadband; sample rate of 100kHz on each channel

Capture ELF/VLF frequencies

~30 Hz - 50kHz

Dual use system:

Daytime: monitor solar activity

Nighttime: monitor atmospheric phenomena (e.g. lightning)

So sensitive that nearly any signal above the ambient Earth noise floor can be detected

Data useable for ionospheric and solar researchers

Ground-basedVLF Monitors

See http://solar-center.stanford.edu/~SID

http://solar-center.stanford.edu/SID/AWESOME/

Student Deployed VLF Antennas at Siena College

Winter in NY 

Summer in NY 

The Firefly Satellite Mission
• Student Profile
• Undergraduate physics major Robert Carroll was the student lead on the lightning photodetector design.
• A primary task was to calculate the field of view of the photodetector and the overlap function.
• Minimum and maximum field of view were calculated based on the geometry of the photo detector and collimator.

Firefly’s Optical and VLF Board

Students building satellites!

The Firefly Satellite Mission
• Student Profile
• Andrew, a junior high school student, works on the Lego MINDSTORM mission.

Students building satellites!