Ivan Prock, P.Eng., BEng, MS’ Post

View profile for Ivan Prock, P.Eng., BEng, MS, graphic

Experienced in Water Resources and Municipal Engineering, with a strong interest in all aspects of the climate crisis.

#USSpaceForce #JenniferElzea #SpaceDevelopmentAgency #SDA #ProliferatedWarfighterSpaceArchitecture #PWSA #ChrisWinslett #LockheedMartin #York #SpaceX #L3Harris "Now the U.S. military wants in on the action — thanks in part to inroads made by the likes of Starlink, OneWeb, Planet and more — and it’s spending big, turning to a variety of companies to build a satellite network unlike any the military has built before. Lockheed Martin is one of the major winners so far under the Space Development Agency, or SDA, a part of the U.S. Space Force and one of its three acquisition divisions. SDA is about to launch the second mission of its constellation known as the “Proliferated Warfighter Space Architecture,” or PWSA. “It’s a mesh network, an internet in space that allows you to [connect] from any point on Earth and [back down to] any point on Earth,” said Chris Winslett, Lockheed’s program director for building Transport satellites.  One key motivator behind the Pentagon building out its own constellation – rather than utilizing commercial networks that are already operational: security. “Any time you’re using an open network, it’s always less secure … the other side is controlling the availability, the quality of service,” Winslett explained. “If you’re just a user, one of many users on another network, you’re subject to whoever owns that network and how they set their priority and the traffic that’s going to be on that network that may not be your traffic.” PWSA is designed to be built out in tranches, with each tranche representing a new generation of satellites with increasingly greater capabilities. Each tranche also consists of two “layers:” Transport, for mesh communications, and Tracking, for targeting locations past the horizon view of assets on the ground (known as “beyond line of sight targeting”) and missile detection and tracking. SDA is currently launching Tranche 0, the “demonstration generation” of PWSA consisting of 28 satellites – built by York, Lockheed Martin, SpaceX and L3Harris. The Transport satellites in Tranche 0 cost about $15 million each, according to Jennifer Elzea, the agency’s chief of strategic engagement.   “SDA’s focus is harnessing commercial development to deliver a proliferated constellation of satellites … to build resilience, and also obviously to harness the tremendous development that’s happened in the space industry over the last number of years,” Elzea told reporters during a recent roundtable.  SDA has already begun awarding manufacturing contracts for satellites in Tranches 1 and 2 – with over $5 billion in total awards to date. In full, PWSA represents the Space Force contribution to the Pentagon’s ambitious Joint All-Domain Command and Control (JADC2) project, aimed at creating a unified network across its military branches. Satellites are one piece of that greater puzzle."

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Space Reporter at CNBC – spacetips@proton.me

Newsletter: Deep in the Tranches A primer on the Pentagon’s satellite constellation, the Proliferated Warfighter Space Architecture (PWSA), and why the United States Space Force’s Space Development Agency is spending billions and leveraging a variety of #space companies to do so: “It’s a mesh network, an internet in space that allows you to [connect] from any point on Earth and [back down to] any point on Earth,” said Chris Winslett, Lockheed Martin’s program director for building Transport satellites.

Investing in Space: Why the Pentagon is spending billions to build its own satellite constellation

Investing in Space: Why the Pentagon is spending billions to build its own satellite constellation

cnbc.com

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