Domain: spaceflight101.com
Stories and comments across the archive that link to spaceflight101.com.
Stories · 3
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SpaceX Hits Two Milestones In Plan For Low-Latency Satellite Broadband (arstechnica.com)
SpaceX is about to launch two demonstration satellites, and it is on track to get the Federal Communications Commission's permission to offer satellite internet service in the U.S. "Neither development is surprising, but they're both necessary steps for SpaceX to enter the satellite broadband market," reports Ars Technica. "SpaceX is one of several companies planning low-Earth orbit satellite broadband networks that could offer much higher speeds and much lower latency than existing satellite internet services." From the report: Today, FCC Chairman Ajit Pai proposed approving SpaceX's application "to provide broadband services using satellite technologies in the United States and on a global basis," a commission announcement said. SpaceX would be the fourth company to receive such an approval from the FCC, after OneWeb, Space Norway, and Telesat. "These approvals are the first of their kind for a new generation of large, non-geostationary satellite orbit, fixed-satellite service systems, and the Commission continues to process other, similar requests," the FCC said today. SpaceX's application has undergone "careful review" by the FCC's satellite engineering experts, according to Pai. "If adopted, it would be the first approval given to an American-based company to provide broadband services using a new generation of low-Earth orbit satellite technologies," Pai said.
Separately, CNET reported yesterday that SpaceX's Falcon 9 launch on Saturday will include "[t]he first pair of demonstration satellites for the company's 'Starlink' service." The demonstration launch is confirmed in SpaceX's FCC filings. One SpaceX filing this month mentions that a secondary payload on Saturday's Falcon 9 launch will include "two experimental non-geostationary orbit satellites, Microsat-2a and -2b." Those are the two satellites that SpaceX previously said would be used in its first phase of broadband testing. -
Doomed Russian Spacecraft Re-Enters Atmosphere Over Pacific Ocean
astroengine sends word that the Russian cargo ship that spun out of control after launching on a mission to the ISS on April 28 has re-entered the atmosphere somewhere over the Pacific Ocean. Orbital tracking indicated the re-entry took place at 2:20 UTC. Its orbital speed and location were not known with perfect precision, but any bits of the spacecraft that didn't burn up are believed to have landed in the ocean between 350 and 1,300 kilometers off the west coast of Chile.
According to Spaceflight 101, "The component with the highest probability of reaching the ground is the docking mechanism of the spacecraft as one of the most dense spacecraft systems. The docking system hosts an 80-centimeter hatch that is surrounded by the docking interface hosting the hooks and pressure seals facilitated on a massive metal ring. Overall, the system has a mass of 200 Kilograms much of which could reach the ground since the closed hatch would most likely not separate from the docking system and the unit will return mostly intact." -
Chang'e-3 Lunar Rover Landing Slated For 13:40 UTC Saturday
savuporo writes "The Chinese Chang'e-3 probe will be landing on the moon [Saturday], 13:40 UTC. CCTV is likely to carry the event live as they did for initial launch. According to technical overview of the mission scenario and instruments, the landing will be fully autonomous with active landing hazard avoidance, which is the first time this has been attempted on any planetary landing. More real-time updates can be found on Twitter with ChangE3 hash tag and NASASpaceFlight forums live event section."