Maple leaf ChipSat

Open Source Navigation Add-On to AmbaSat Solar ChipSat kit (https://ambasat.com/). We want to make small spacecraft that we can control and navigate through low earth orbit (LEO). The add-on plans to contain:

•  A 0.6 m^2 solar sail made of 0.012mm aluminized Mylar to the chip sat,

• Air-core Magnetorquers for pointing the satellite,

• and a electrodynamic tether for de-orbiting space debris.

for the 0.6m^2 Solar Sail:

• 0.5mm/s^2 acceleration when the full face of the solar sail is pointing toward the sun

• Mass of 10.7g

• Steel booms (from measuring tape) 13g -- needs confirmation

Air-core Magnetorquers

• Size to be determined

• 10X acceleration from solarsail? https://sites.google.com/site/manitobasat1/subsystems/aodcs?authuser=0

• Torque = 2.16E-4 N

•  Magnetic Dipole moment = 7.2

torque (T) = Number of turns(N)  Amps(I)area(A) * earth's magnetic field

earths magnetic field (T) =3.00E-05 T, Torque (N) =2.16E-04 N

Number of turns = Torque/( Amps(I)*area(A) * earth's magnetic field)

Number of turns = 39.18 = approx: 40

Electrodynamic Tether

• A 10m tether of copper wire would provide .37N of de-orbiting force continously

• 20 gauge copper wire at 10m is 59g---- too much mass

• 1m tether has a force of 0.04 N with mass of 20 gauge copper 5.9g