Glossary — K
3 terms
ATMOSPHERE
Karman Line
The conventional boundary of space at an altitude of 100 km.
Example: Crossing the Karman Line marks the start of spaceflight.
CONTROL
Kalman filter
An algorithm fusing noisy sensor data into an optimal state estimate.
Example: A Kalman filter merged GPS and inertial measurements.
LAUNCH
Kick stage
A small final stage fine-tuning a payload's final orbit.
Example: The kick stage raised the satellites to their operational altitude.