20 août 2019 | International, Aérospatial
NASA Seeks Lunar Gateway Resupply Proposals
Mark Carreau NASA has issued a request for proposals (RFP) from U.S. companies capable of carrying out up to $7 billion in re-supply missions to its planned lunar-orbiting, human-tended Gateway. The request asks for a service similar to how multiple commercial providers deliver pressurized and unpressurized cargo to and from the six-person International Space Station (ISS) under commercial resupply services contracts. The major difference is that the ISS orbits in a high inclination orbit about 250 mi. from the Earth's surface. The Gateway is to orbit the Moon in a near rectilinear halo orbit, an elliptical track that comes as close to the lunar surface as 1,875 mi. (3,000 km) and as far as 43,750 mi. Under the Gateway cargo RFP, the craft would remain parked at the Gateway for six months, followed by an automated departure and disposal. Responses to the RFP, issued Aug. 16, are due Oct. 1. Under the Artemis initiative unveiled by NASA earlier this year, astronauts will return to the lunar surface via the Gateway by 2024 as the agency pursues a sustainable presence by 2028 and prepares for the human exploration of Mars. Under the RFP issued through NASA's Kennedy Space Center (KSC), the agency is prepared to commit up to $7 billion to contract with multiple U.S. suppliers for 15 years on a fixed-price basis. Each resupply service would be assured at least two missions. NASA is asking RFP responders to address logistics, spacecraft design, cargo mass capability, pressurized volume, power availability for payloads and transit time to the Gateway. “We chose to minimize spacecraft requirements on industry to allow for commercial innovation, but we are asking industry to propose their best solutions for delivering cargo and enabling our deep-space supply chain,” said Mark Wiese, NASA's Gateway logistics element manager at KSC, in an Aug. 19 NASA statement. “In addition to delivering cargo, science and other supplies with these services, private industry also has the opportunity to deliver other elements of our lunar architecture with this solicitation.'' Once the initial contracts are awarded, NASA may issue additional lunar cargo contract opportunities to keep the operations competitive. With advance permission from NASA, its providers also may use mission capabilities to deliver, remove and/or return non-NASA cargo if the additional activities do not interfere with the prime mission. In late November, NASA announced the selection of nine U.S. companies under its Commercial Lunar Payload Services (CLPS) program, making them eligible to bid on the delivery of payloads to the lunar surface. The agency plans to invest up to $2.6 billion in CLPS over the next decade. https://aviationweek.com/space/nasa-seeks-lunar-gateway-resupply-proposals