RTOP means Research and Technology Objectives and Plans in
NASA
Similar to RTOP
3-DOF - Three Degree Of Freedom
3AAL - Three Axis Acoustic Levitator
6-DOF - Six Degree Of Freedom
8A - Minority-owned or other Disadvantaged Business
920RQG - 920th Rescue Group
A - Angstrom
A - Analog Signal
View all in NASA