
The Hermes satellite is the result of a semester long space craft design course at Princeton University. Students taking the class applied the material taught in the course and material from various outside sources to come up with a Phase A satellite design to address the challenge of tracking small bird migration from space.
Based on discussions with migration experts, the following set of requirements was derived:
| Requirement | Solution |
| Coverage | Global |
| Tracking Accuracy | As precise as possible, 10-50km minimum |
| Tracking Intervals | Every Day |
| Lifetime | 10+ years |
| Volume | 1000+ transmitters, many species |
| Adaptability | Multiple types of low-power transmitters/ID codes |
The following design teams were formed:
Management - To overview all teams and ensure that deadlines and objectives were being met
Payload - Focusing on the interface between the transmitter and satellite
Mission Analysis and Launch - Determining ideal orbit and choosing a launch vehicle
Propulsion - Choosing and designing propulsion systems for course and attitude correction
Power - Designing a power system (including solar panel arrangement) to supply necessary power
Attitude Determination & Control - Choosing systems to maintain high pointing accuracy
Software & Computing - Designing a computer system to make all necessary calculations
Communications - Responsible for maintaining contact between satellite and ground stations
Structure - Responsible for integrating all system elements into satellite configuration
Thermal - Responsible for ensuring that all equipment remains within operating temperatures