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Team Magnaritaville Final Presentation. Zachary Cuseo, Andrew Fruge ’, Tyler Knappe , Christopher Nie , Sydni Smith, and Shweta Maurya December 1, 2009. Mission Overview.

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Team magnaritaville final presentation

Team MagnaritavilleFinal Presentation

Zachary Cuseo, Andrew Fruge’, Tyler Knappe, Christopher Nie, Sydni Smith, and ShwetaMaurya

December 1, 2009

Mission overview
Mission Overview

  • The twofold purpose of this BalloonSat mission will be to show that the Earth's magnetic field varies and to show that magnetometers can be used to determine the attitude of a BalloonSat.

Mission overview continued
Mission Overview Continued

  • Hypothesis

    • Fluctuation in the Earth’s magnetic field

    • Finding a vector which will facilitate in determining in which direction the camera is pointed

  • Satellite attitude

  • To better understand the magnetic field

Mission specific components
Mission Specific Components

  • 1 AVR Microcontroller

  • 2 Magnetometers

  • 2 Analog Proto Board Connectors

  • 5 9V Batteries

  • 1 Canon Camera

  • 1 Heater

  • 1 HOBO


Switch Batteries HOBO


Heater AVR Temperature


Magnetometers Accelerometer Camera

Internal Temperature Probe

Pressure Sensors

Design differences
Design Differences



The Heater and Batteries were placed in a corner to maximize heating efficiency, while the AVR was attached to a wall.

The two magnetometers extended from adjacent sides for more accurate readings

No photo of a cheeseburger was used.

No Faraday Cage was necessary.

  • Staggering the Heater, Batteries and AVR for balance.

  • The two magnetometers will extend from opposite sides of the Satellite.

  • There will be a photo of a cheeseburger to truly be C.A.T.E.O.S.

  • Utilizing a Faraday Cage

Results and analysis
Results and Analysis

Mag X

Strength (nT)


Mag Y

Strength (nT)


Results and analysis1
Results and Analysis

Accel X

Accel Y

Internal Temp (°C)

Pressure (psi)

Results and analysis2
Results and Analysis

  • Vertical

Mag Y

Strength (nT)




Results and analysis3
Results and Analysis

  • Vertical field trends –

    • Overall decrease of 4,219 nT

    • Expected change due to altitude of 1,694 nT

    • Rolling into x-direction would explain this extra variation

Results and analysis4
Results and Analysis

  • Magnetometer Data

X-Magnetometer Variation

Results and analysis5
Results and Analysis

  • Picture 771 – 8:08 a.m.

  • Data point (28,039,1.94339)  East

Results and analysis6
Results and Analysis

  • Picture 705 – 7:45 a.m.

  • Data point (21,379, 2.2266)  North

Lessons learned
Lessons Learned

  • Orient vertical magnetometer pointing down

  • Add a third magnetometer in the horizontal plane for definitive attitude determination

  • Prototype structure

    • Keep it simple

    • Test different designs for an efficient use of space

Ready to fly
Ready to Fly

  • Store payload in standard conditions upright to protect magnetometers

  • Perform launch checklist

Failure analysis
Failure Analysis

  • No in-flight failures

  • On functional test, y magnetometer was discovered to be inoperative

    • Thought to be connection problem

    • Found faulty connection to the proto board

    • Soldered and verified to be working

  • Magnetometer Structural Failure

    • End cap lost during transport to launch site

    • Wax paper taped onto end at launch site


  • Discovered a change in the vertical component of the magnetic field with respect to altitude

  • Confirmed a spin in the satellite, as seen through the sinusoidal data

  • Discovered attitude determination is possible with the use of a horizontal magnetometer


Mass Budget


Monetary Budget

Message to next semester
Message to Next Semester

  • Keep the experiment simple, but make sure everyone is interested in it.

  • Find a way to sufficiently secure the camera and to cover/insulate it.

  • Establish a consistent time to meet on a weekly basis. Do this as early as possible.

  • Utilize your resources (Space grant, your professors, etc.)

  • Start video taping early

  • Prepare for this project to be a major time commitment

    • Dedicate at least one all-nighter to the satellite