TT&C (Telemetry, Tracking, and Command) is a crucial system used in satellite operations and space missions. Think of it as a two-way communication system that helps ground stations monitor and control satellites in space. Like a remote control and health monitoring system combined, TT&C allows operators to check the satellite's condition (telemetry), know exactly where it is (tracking), and send instructions to the satellite (command). This is similar to how you might remotely monitor and control a smart home device, but on a much larger and more complex scale for space operations.
Managed TT&C operations for a fleet of 5 commercial satellites
Developed procedures for Telemetry, Tracking, and Command systems
Led team responsible for TT&C ground station maintenance and operations
Typical job title: "TT&C Engineers"
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Q: How would you handle a satellite anomaly during critical operations?
Expected Answer: A senior candidate should discuss establishing emergency procedures, coordinating with different teams, making quick but informed decisions, and having backup plans ready. They should emphasize the importance of clear communication and documentation.
Q: Describe your experience with ground station network management.
Expected Answer: Should demonstrate knowledge of managing multiple ground stations, coordinating satellite passes, scheduling communications, and ensuring reliable data transfer between satellites and ground stations.
Q: What procedures would you follow for routine satellite health checks?
Expected Answer: Should explain the process of reviewing telemetry data, checking system parameters, verifying communication links, and maintaining operation logs. Should mention standard reporting procedures.
Q: How do you ensure reliable command transmission to satellites?
Expected Answer: Should discuss verification procedures, command authentication, signal strength monitoring, and backup procedures if primary communication fails.
Q: What are the basic components of a TT&C system?
Expected Answer: Should be able to explain basics of telemetry (collecting satellite data), tracking (determining satellite location), and command (sending instructions) in simple terms.
Q: Describe the typical daily tasks in satellite operations.
Expected Answer: Should mention monitoring satellite health, logging activities, following operation procedures, and basic troubleshooting under supervision.