SatHub

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SatHub is a spacecraft designed to revolutionize satellite launching and maintenance.

Introduction to SatHub.
SatHub is a modular satellite meant to lower the cost of satellite maintenance and development. The satellite will have multiple docking ports for expansion and of course, satellites.

How it will work
SatHub will be a satellite that will have onboard propulsion and power systems. Other satellites will dock to this, making sat development cheap and fast. Instead of developing propulsion systems you can just develop the part of the satellite that does stuff. Insight will handle the fine details of propulsion and power. Not only that, but the docking gives Insight the ability to refuel, extending the lifetime of the satellites.

How Insight will launch it
Insight will launch it on the Delta 7 launch vehicle. Depending on the orbit, it will either use the Deep Space Delta 4 kickstage or the Delta 7 second stage.