farSight Technologies proposes a Solar Electric Propulsion Transfer Ring (SEPTR) to fill the technology gaps identified on several NASA programs: The Flight Opportunities Program, The Small Spacecraft Technology (SST) and The Launch Services Program. These programs have all identified the need for lunar/cislunar transfer capabilities, novel propulsion systems (e.g. Dual Mode) and to serve as a precursor mission for gateway future planetary exploration. SEPTR is a small spacecraft boost and support stage that is built into the payload mounting ring for venture class launch vehicles. It will provide Direct-to-Earth tethered communication and basic PNT utilizing space tested avionics, solar panels, batteries, sun sensors and star trackers. SEPTR leverages high I SP/low thrust electric propulsion to open access to a wide range of orbits to smaller space craft that they would not be able to achieve on their own. It can be used not only as a 3rd stage booster but also configured to provide additional support including power, multi-mode propulsion, communications and station keeping for as long as the spacecraft needs or desires. SEPTR offers a short-term solution to the problem of small spacecraft reaching higher altitude orbits and opens access to missions in lunar and cislunar space for this segment. Potential NASA Applications (Limit 1500 characters, approximately 150 words): NASA applications: 1) Moon to Mars, 2) Artemis, 3) Commercial Lunar Payload Services (CLPS) a program the PI supported and 4) NASA Flight opportunities. To support these missions, farSight envisions a model that will open up the TLI market to small entrants by offering pre-staged Pony Express services that include propulsion and mission services delivered on the NASA-matured Venture Class LEO launch capability provided by Relativity Space, Firefly Space Systems, and Virgin Orbit; substantially reducing costs for small spacecraft. Potential Non-NASA Applications (Limit 1500 characters, approximately 150 words): Non-NASA applications: 1) Shipboard ADNS DTN enabled router for Enterprise level Naval Networks and unmanned C2, 2) United Launch Alliance with its cislunar economy initiatives, 3) Astrobotics; projected to be the first commercial company to land on the moon and 4) Local and State level Disaster Recovery Agencies where ground communications infrastructure is space or Non-existent. Duration: 6
