Pinpoint Landing

[brunopinto900]

Hello,

Me and my colleagues want to implement several algorithms to land a spacecraft on the ground, GFOLD is one of the solutions. Is this possible with the current state of this repo?

Thank you.

[rslippert]

? Did Alfonso ever responded to this ?
I would say; No, the CR3BP.py code does not have mass or the ability to thrust.
It looks like this code assumes zero mass. But it should be easy to modify.

You would need to add mass like Alfonso did with Spacecraft.py
For thrust you need to add acceleration terms into states 3,4,5 of the of diffy_q() function (I think)
Something like this:
state_dot[ 3 ] = 2 * vy + omega_x + accel[0]
state_dot[ 4 ] = -2 * vx + omega_y + accel[1]
state_dot[ 5 ] = omega_z + accel[2]

[rslippert]

BTW
I will be releasing Gateway24 software includes Spacecraft mass,fuel and attitude.
I believe what is needed is a 14 state, 6DOF spacecraft simulation with Orion like controls.
Not that Alfonso's AWP software does not include a lot of useful capabilities.