SSPARC XTOS Design vector Parameters of the Trade space First Order Effec Orbital Parameters altitude(200 to 2000 km) ne. Altitude perigee altitud 50km) Orbit inclination(0 to 90 degrees) titude Range uator Physical Spacecraft Parameters: Latency comm architechture(TDRSS/AFSCN) bility(200 to 1000 m/s) SSPARC aTos design vector Geometry of the Multi-vehicle Swarm Swarm Orbit Parameters Number of spacecraft in swarm Geometry of swarmXTOS Design Vector • “Parameters of the Trade Space” Variable: First Order Effect: Orbital Parameters: •Apogee altitude (200 to 2000 km) Lifetime, Altitude •Perigee altitude (150 to 350 km) Lifetime, Altitude •Orbit inclination (0 to 90 degrees) Lifetime, Altitude Latitude Range Time at Equator Physical Spacecraft Parameters: •Antenna gain (low/high) Latency •Comm Architechture (TDRSS/AFSCN) Latency •Propulsion type (Hall / Chemical) Lifetime •Power type (fuel / solar) Lifetime •Total DV capability (200 to 1000 m/s) Lifetime Space Systems, Policy, and Architecture Research Consortium ©2002 Massachusetts Institute of Technology 19 Space Systems, Policy, and Architecture Research Consortium 20 • mothership ©2002 Massachusetts Institute of Technology ATOS design Vector Geometry of the Multi-vehicle Swarm Swarm Orbit Parameters Mothership/ no Number of spacecraft in swarm Geometry of swarm 10