MagTag Modular Interfaces for Palletized Subsystems and Satellites

Tonbsp;enable serviceable satellites and persistent orbital platforms, the need exists for simple, robust and lightweight modular interfaces. Such interfaces allow for a variety of functions to be upgraded at low-cost using affordable commercial satellite servicing vehicles. Given the large number of LEO constellations in development, such modular interfaces provide a low-cost way of restoring degraded functionality, enabling constellation operators to extend the productive lifetime of their satellitesnbsp;(e.g. plug-and-play modules for replacement batteries, reaction wheels, etc). This eliminates the need to de-orbit and replace satellites which otherwise may be completely functional.Altius has developed an electropermanent-magnetically coupled electrical and/or fluid connection ldquo;MagTagtrade;rdquo; interface that is robust and lightweight. The proposed MagTag interface provides the following benefits:Robust: Electropermanent magnets (EPMs) offer a bi-stable latching mechanical connection with no moving parts. Magnetic coupling reduces strain due to thermal conditions at the interface boundaryLatching: EPMs only require power to change gripping states from on-to-off, they can hold an attached payload indefinitely without consuming power.Lightweight: Without heavy mechanical connections, the overall interfacenbsp;can be produced within a small footprint saving on mass andnbsp;volume.Low-Profile: Each interface half can fit within an approximately 7.5 x 7.5 x 2 cmnbsp;envelope.Reconfigurable:nbsp;Allows for a highly configurable interface suited to a wide array of general customer needs and allows for development of specialized interfaces for specific payloads and sub assemblies.Scalable:nbsp;Usable for full subassembly interfaces to satellites or component level interfaces to larger subassemblies. The general concept cannbsp;be scaled up to supportnbsp;larger modules.These interfaces will allow for enhanced serviceability and upgradability of future space assets for NASA, DoD, and commercial interests.