recentpopularlog in

pierredv : ssa   6

Space Fence on Kwajalein will allow Air Force to monitor debris, threats - Pacific - Stripes Apr 2017
"The Air Force Space Surveillance System, which shut down in 2013 after 50 years, tracked about 20,000 objects. Space Fence, a tracking system being built by Lockheed Martin on the remote South Pacific island of Kwajalein, is expected to be able to track 200,000."

"Space Fence will be able to detect objects as small as marbles at the roughly 250-mile height of the International Space Station. Such a small speck of debris might sound benign, but NASA has replaced space shuttle windows damaged by flying paint flecks."
space  USAF  orbital-debris  SSA  LockheedMartin  radar 
may 2018 by pierredv
AGI establishes commercial deep space radar tracking system - SpaceNews.com
"AGI and Thoth Technology said they have set up a radar system on a 46-meter antenna at the Algonquin Radio Observatory in Ontario. The system is capable of tracking objects out to distances of 50,000 kilometers, and can detect objects about two meters across on GEO."

“We want to get down to 20 centimeters or less.”

"Johnson said that combining the radar observations with existing optical observations of GEO belt objects improves the accuracy of positions of those objects to 150 meters, compared to 250 meters using optical observations alone"
SpaceNews  AGI  SSA  space  radar  GEO  orbital-debris 
may 2018 by pierredv
Space Situational Awareness in the Era of Megaconstellations - Mark Dickinson (Inmarsat, SDA) - Via Satellite - May 2018
"The problem is, as we move into the era of nanosat and CubeSats, the barriers to entry are low and many of these operators aren’t fully aware of the regulations and international standards that they need to adhere to."

"the potential for a big data problem, where operators get CA warnings when they are not needed and they don’t understand how to react to data delivered ... As space becomes more congested, with more objects, and likely more CA warnings, it will only become more of an issue"
ViaSatellite  SSA  satellite  Inmarsat  SDA 
may 2018 by pierredv
Defense Department turning over space traffic management to Commerce, but details still unclear - SpaceNews.com May 2018
"Although there is overall agreement on the transfer of responsibilities, the specifics of who will do what may take years to sort out. DoD has deep expertise in “space situational awareness,” or SSA, whereas Commerce faces a steep learning curve."

"DoD holds the SSA authority and public service responsibility under section 2274 of Title 10 of the U.S. Code"

"The chairman’s mark of the Fiscal Year 2019 National Defense Authorization Act unveiled on Monday includes language that lays a path for the implementation."

"The space catalog is maintained by the Joint Space Operations Center at Vandenberg Air Force Base, which is part of U.S. Strategic Command. The center operates the Space Surveillance Network, a worldwide system of ground-based radars along with ground-based and orbital telescopes."

"There are 1,500 active satellites on orbit today. DoD monitors about 20,000 objects in space that are 10 cm or larger."

"There are still questions on who will perform specific duties such as operating sensors, Loverro noted. When there are two satellites coming close to each other, somebody has to “task” a sensor to go take measurements and calculate distances between objects."
SSA  STM  DoD  DoC  space  legislation  orbital-debris 
may 2018 by pierredv
Space situational awareness experts urge Russia to join orbital neighborhood watch - SpaceNews.com Mar 2018
"To prevent collisions in space, nations with advanced orbital monitoring abilities need to share data with each other. Russia, being skilled in space situational awareness (SSA), should be part of the global effort to protect the space environment, experts said March 15 at the Satellite 2018 conference here."

"Neither Roscosmos, nor Russia’s two largest satellite telecom operators, the Russian Satellite Communications Company and Gazprom Space Systems, are SDA members."
SpaceNews  SSA  orbital-debris  space-debris  SpaceSituationalAwareness  SWF  SDA  JSpOC 
march 2018 by pierredv
ArianeGroup stands up GEOTracker service to watch geostationary arc - SpaceNews.com
"France’s Joint Space Command on Dec. 14 became ArianeGroup’s first customer for GEOTracker, a network of ground-based telescopes monitoring the geostationary arc some 36,000 kilometers above the Earth, the orbit where most large satellites reside."

"Commercial space situational awareness (SSA) companies, notably Analytical Graphics (AGI) and ExoAnalytic Solutions, have gained market traction providing satellite operators with information about the space environment, including issue warnings when objects in space are on a possible collision course."

"Another commercial SSA company, LeoLabs, is using ground-based radars to track satellites and debris exclusively in low Earth orbit. Lockheed Martin, meanwhile, is building the Space Fence radar system for the Air Force capable of monitoring GEO and low Earth orbit, with full service slated to start in 2019."
SpaceNews  Ariane  SSA  SpaceSituationalAwareness  France  AGI  satellite 
january 2018 by pierredv

Copy this bookmark:





to read