trac - tran
- trace
- trace of subsatellite point
- trace time
- tracing probe
- track
- track arrangement in record format
- track format
- track phase jumps
- track spacing
- track the satellite
- track the target
- track tilt angle
- track width
- tracking
- tracking demodulator
- tracking error
- tracking filter
- tracking mode
- tracking of target
- tracking out
