MP 1 Flashcards
1
Q
What are the pointing errors for Roll, Pitch, Yaw?
A
Roll +-0.08
Pitch +-0.08
Yaw +-0.2 (DYSE) +-0.8
2
Q
What is a hard limit vs a soft limit? (what are the numbers + prime)
A
Hard limit = max amount - (lat +-0.15 long +-0.3)
Soft limit = safety limit - (lat +-0.1 long +-0.2)
Prime (lat +-0.1 long+-0.1)
3
Q
What is a state vector?
A
track data (6 registers) where ACS continually stores data about position and velocity
4
Q
What are the state vector errors?
A
(Degree of Rotation)
RCTL/RESD, PCTL/PESD, YCTL
5
Q
What are the state vectors for rate of errors?
A
(Angular Rate) RMER, PMER, YMER
6
Q
What is the purpose of the ACS?
A
The purpose is to keep the satellite on station in its’ GEO orbit and keep the payload pointed at earth.
