L13 - Ground Segment

Question 1

What are ground systems?

Answer 1

• Supports the spacecraft + payload
• Relays mission data generated by spacecraft to users
• Performs other functions as required

Question 2

What are the two types of ground systems?

Answer 2

• Mission elements (control space segment or handle mission data)
• Facility elements (supports mission elements)

Question 3

What are the three types of control centers?

Answer 3

• Spacecraft Operations Control Center (SOCC)
• Payload Operations Control Center (POCC)
• Mission Control Center (MCC)

Question 4

Give examples of ground systems.

Answer 4

• The Defense Meteorological Satellite Programme (DMSP). LEO sats. Client: US DoD. It also uses the US airforce Satellite Control Network Automated Remote Tracking Stations
• Deep Spae Network (DSN). It consists of three 70me ground stations 1/3 of the way around the globe. (always ON com.)
• MSG
• ISS
• Galileo, 2 redundant GALILEO Control Centers, S-Band stations, C-Band up-link stations, Sensor stations.
• Inmarsat!