transportation:satellites
Differences
This shows you the differences between two versions of the page.
| Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
| transportation:satellites [2026/06/08 23:58] – [Amazon Leo] timb | transportation:satellites [2026/06/10 23:47] (current) – [Jamming] timb | ||
|---|---|---|---|
| Line 767: | Line 767: | ||
| https:// | https:// | ||
| + | == FCC lifts looming deadline for Amazon Leo satellite broadband constellation == | ||
| + | The waiver “serves the public interest by promoting a second large satellite broadband constellation.” | ||
| + | |||
| + | Stephen Clark – Jun 8, 2026 5:59 PM | ||
| + | |||
| + | The Federal Communications Commission has waived a requirement for Amazon to launch half of its satellite broadband constellation by the end of July, a key regulatory reprieve that buys the tech giant time to get more of its spacecraft into orbit. | ||
| + | |||
| + | Amazon won regulatory approval for the Amazon Leo network in July 2020. The FCC’s authorization came with two deadlines. First, Amazon had to launch half of its 3,232 satellites by July 30, 2026, in order to maintain authorization to launch the rest of the network. The regulator gave Amazon a deadline of July 30, 2029, to have all of its first-generation satellites in orbit. | ||
| + | |||
| + | It has been apparent for some time that Amazon would not meet the FCC’s requirement to launch half of its satellites—1, | ||
| + | |||
| + | https:// | ||
| Line 4068: | Line 4080: | ||
| https:// | https:// | ||
| + | == Tests suggest Russian satellites can jam GPS on a continental scale == | ||
| + | Mystery of GPS interference across Europe raises questions about Russian motives. | ||
| + | |||
| + | Jeremy Hsu – Jun 8, 2026 2:56 PM | ||
| + | |||
| + | Russian satellites have been identified as the cause of mysterious, seconds-long bursts of GPS interference across Europe—a rare example of human-made GPS interference coming from space. But uncertainty still hangs over whether such interference is intentional and if it could be more powerfully weaponized as GPS jamming with continental reach in the future. | ||
| + | |||
| + | The discovery came from an investigation detailed in a June 2 preprint paper by Todd Humphreys and his student Zach Clements at The University of Texas at Austin, along with Argyris Krizise at Stanford University in California. By sifting through public data from ground-based stations with global navigation satellite system (GNSS) receivers, they identified a pattern of high-powered interference lasting less than 10 seconds each time but simultaneously detectable by ground stations across Europe from Norway to Spain to Poland, and even reaching as far west as Greenland and Canada. | ||
| + | |||
| + | By analyzing the ground station data from January 2019 to April 2026, the researchers found 75 days with at least one widespread GNSS interference event overlapping with the GPS L1 frequency band centered on 1575.42 megahertz. That represents the main band used for signal transmission by the US-made GPS satellite constellation and GNSS constellations from other countries. | ||
| + | |||
| + | Such interference patterns happened mostly on Tuesdays, Wednesdays, and Thursdays during business hours in Europe, Humphreys told the YouTube channel Veritasium. Because such “continental-scale” interference was simultaneously affecting GPS receivers across Europe and beyond, Humphreys and his colleagues calculated that the source had to be at least 1,200 kilometers above the Earth. | ||
| + | |||
| + | By examining which satellites were above the horizon over the affected region during each interference event, the researchers narrowed their search to a handful of suspect satellites. But they couldn’t go further because they only had data processed by the GNSS receivers of the ground stations—they needed to capture the raw radio signal data from the interference source. | ||
| + | |||
| + | https:// | ||
| + | |||
| + | == Russian Satellites Are Jamming GPS Signals, Study Says == | ||
| + | |||
| + | The interference happened mostly during business hours, suggesting scheduled operations. | ||
| + | |||
| + | Passant Rabie - June 10, 2026, 10:20 am ET | ||
| + | |||
| + | While sifting through data collected by GPS monitoring stations, a team of researchers noticed a mysterious pattern. Over the past seven years, the team documented 75 days on which there was a sudden drop in signal strength that occurred simultaneously across Europe. A thorough investigation traced the disruptions to a small constellation of Russian satellites, which may be jamming GPS signals on purpose. | ||
| + | |||
| + | A recent investigation led by Todd Humphreys from the University of Texas, Austin, found that the Russian satellite Kosmos 2546 may have been used to jam GPS signals on a continental scale as part of scheduled operations. While the purpose of the signal interference is not yet clear, the findings could have bigger implications for electronic warfare in global conflicts. The findings have not yet undergone peer review, but the researchers have submitted the paper for review to NAVIGATION, the journal of the Institute of Navigation. | ||
| + | |||
| + | https:// | ||
| Line 6972: | Line 7012: | ||
| https:// | https:// | ||
| + | |||
| + | == NASA’s Crew Safety Alert Exposed a Bigger ISS Leak Problem == | ||
| + | |||
| + | A risky plan to repair the air leak was put on hold as it might have compromised the structure of the Russian module. | ||
| + | |||
| + | Passant Rabie - June 9, 2026, 3:15 pm ET | ||
| + | |||
| + | The dreaded air leak on the International Space Station (ISS) has gotten so bad that Russian cosmonauts were preparing to use a saw to access a suspected leak area in the Zvezda module’s transfer tunnel. | ||
| + | |||
| + | NASA released an update on the long-running leak from the Russian segment of the space station, revealing details of the plan that prompted five crew members to shelter in place on Friday, June 5. According to NASA, Roscosmos had come up with a plan that involved cutting a bracket to better access an area that may have been contributing to the leak. | ||
| + | |||
| + | This new strategy “could have resulted in elevated risk to the structure in the area,” NASA wrote. The Russian space agency put its plan on hold for now to gather more data and further inspect the suspected areas. | ||
| + | |||
| + | https:// | ||
| + | |||
transportation/satellites.1780963113.txt.gz · Last modified: by timb