Quantity   Component name
1 × massive hydrogen balloon capable of reaching 50 km Hindenburg.
1 × rocket capable of reaching LEO (160+ km) from 50 km $$$$$, nav + fuel burn computers, earth coms, failsafes, light weight, lots of fuel and LOX engines
1 × satellite radiation and surge hardened computer + cameras + sensors + scientific instruments + antenas + heated batteries + solar panels + thrusters for orbit adjustments