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Sierra Nevada's STPSat-5 satellite completes ground compatibility testing
by Staff Writers
Sparks NV (SPX) Jan 29, 2018

The STPSat-5 payloads are provided by Space and Naval Warfare Systems Command, the U.S. Air Force Academy, the Naval Research Laboratory, and the Air Force Research Laboratory. As the prime contractor, SNC designed and built the STPSat-5 spacecraft and integrated the government payloads.

Sierra Nevada's Space Test Program Mission 5 (STPSat-5) satellite has moved another step closer to launch, successfully completing its Factory Compatibility Test (FCT) with NASA's Near-Earth Network and the NASA Ames Multi-Mission Operations Center.

STPSat-5 hosts five Department of Defense (DoD) experiments to test emerging space technologies and is expected to launch in 2018. SNC completed mechanical integration in September, stacking three functional modules (propulsion, bus and payload deck) to form the complete space vehicle.

Completion of FCT demonstrates both radio frequency (RF) interfaces and end-to-end compatibility of the STPSat-5 space vehicle with the ground systems used for command and control once the vehicle is on-orbit.

"Completing FCT is an important milestone for the STPSat-5 program. This test demonstrated the ability of NASA's ground systems to communicate with the spacecraft, command it and receive telemetry - verifying critical mission interfaces," said Pat Remias, senior director of programs for SNC's Space Systems business area. "We look forward to the next steps to get STPSat-5 into space and provide important data to the DoD,"

With successful completion of the FCT, the space vehicle is proceeding into final system-level functional and environmental testing, including random vibration and thermal vacuum, prior to its shipment to the launch site.

The STPSat-5 payloads are provided by Space and Naval Warfare Systems Command, the U.S. Air Force Academy, the Naval Research Laboratory, and the Air Force Research Laboratory. As the prime contractor, SNC designed and built the STPSat-5 spacecraft and integrated the government payloads.

STPSat-5 is the first mission to fly SNC's versatile SN-50 bus, which has both Low-Earth Orbit and Geosynchronous-Earth Orbit capabilities. The vehicle is fully compatible with the standard Evolved Expendable Launch Vehicle (EELV) Secondary Payload Adapter and is an ideal choice for a variety of operational, technology demonstration, and science missions.

Related Links
Sierra Nevada Corporation's
Space Technology News - Applications and Research

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Kilopower: What's Next?
Cleveland OH (SPX) Jan 19, 2018
When astronauts someday venture to the Moon, Mars and other destinations, one of the first and most important resources they will need is power. A reliable and efficient power system will be essential for day-to-day necessities, such as lighting, water and oxygen, and for mission objectives, like running experiments and producing fuel for the long journey home. That's why NASA is conducting experiments on Kilopower, a new power source that could provide safe, efficient and plentiful energy for fut ... read more

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