GallantChaos t1_jczf6o4 wrote
Reply to comment by Due_Start_3597 in 10 months after its launch by SpaceX, a $10,000 satellite made by students with off-the-shelf materials and powered by 48 Energizer AA batteries, is not only working, it's demonstrating a way to reduce space junk by lughnasadh
I see two possibilities for why this may not be:
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Those thrusters may be necessary for collision avoidance during the deorbit phase. (to prevent hitting in-service satellites)
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The thrusters are used and depleted to keep the satellites in orbit - and thus in service - as long as possible.
Adding a parachute like this may help increase drag and can be deployed with little additional cost/mass.
burnbabyburn11 t1_jd1z0zl wrote
Gyroscopes bro
Zkootz t1_jd2cudw wrote
What would a gyro do more than rotate the satellite?
Mackie_Macheath t1_jd2j9hh wrote
Orient the satellite different so the chute creates less drag or move even over the long trajectory slightly sidewards.
Zkootz t1_jd2l6m7 wrote
Yeah but did the person not mean that gyroscopes could be used in vase thrusters are not working/out of fuel?
GoodyPower t1_jd331cu wrote
I believe gyros can/could orient satellites especially those with a sail to use solar winds to deorbit.
https://issfd.org/ISSFD_2011/S12-Orbit.Dynamics.3-ODY3/S12_P3_ISSFD22_PF_038.pdf
Thelastosirus t1_jd63mfo wrote
You are literally describing the Lightsail satellite experiment that went into orbit awhile back. It's meant to increase orbit using the pressure from the sun based off the angle of the sail, sort of like a wind sail. Just to keep you from wondering it actually works!
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