Satellite Internet

Satellite Internet / Featured Blogs

Can SpaceX Launch 30,000 Second-Generation Starlink Satellites? Maybe

The bottom line is that success is not guaranteed, but neither is failure -- there is a non-zero probability of success. On May 26th, SpaceX applied for permission to launch 30,000 "second-generation" Starlink broadband Internet satellites. (Note that the software on Starlink satellites is updated about once a week). The application narrative states that the second-generation satellites will be configured...

Hassle Over LEOs

Every second, 4.5 billion people using computers and other electronic devices send 100,000 gigabytes of information to each other. Around 60% of the world's population has an Internet connection. North America and Europe have penetrations of 95% and 87%. But Asia and Africa do not yet get beyond 54% and 40%. On those continents, there are many remote areas where there is no Internet yet. At least no affordable Internet.

SpaceX Applies for a Constellation Re-Design and Announces Beta Test Dates

This week SpaceX petitioned the FCC to reconfigure their Starlink constellation and Elon Musk outlined their beta testing plan. As shown below, the most significant configuration change is reducing the altitude of four of the five groups of orbital planes by around 50%. The total number of satellites and the number orbiting at a 53-degree inclination, which gives good coverage over relatively affluent regions, are not changed very much.

OneWeb Is Bankrupt – Who Will Buy Their Assets?

OneWeb has filed for Chapter 11 bankruptcy. OneWeb CEO Adrian Steckel stated that they were "close to obtaining financing" but failed as a "consequence of the economic impact of the COVID-19 crisis." That is plausible, but they were also far behind SpaceX Starlink in launch cost and capacity. (SpaceX, remains open as an essential industry working on defense contracts, but two employees have tested positive for COVID-19) and financial analyst Tim Farrar said SpaceX faced a "near-term cash problem" even before the pandemic).

Low-Orbit Satellite Security

I've been watching the progress of the low-orbit satellite providers, which are promising to bring broadband solutions across the planet. There has been some serious movement since the last time I discussed their status. On January 29, Starlink launched its latest round of low-orbit satellites, bringing the number in space to 242. Not all of these will be delivering broadband. The first half dozen satellites were test units to try out various concepts.

Apple Satellites?

Word has leaked out that Apple is working on a satellite project. The company is at the beginning of the research project, so there is no way to know exactly what they have in mind. For example, is the company considering launching satellites, or would they lease capacity from one of the other planned satellite networks? The fact that Apple is working on the concept is a good segue to discuss the many ways that satellite connectivity could be useful to Apple or other companies.

Geely’s LEO Constellation for Mobile Vehicle Connectivity

The Geely Holding Group (GHG) is a private Chinese conglomerate that is highly diversified but best known as an auto manufacturer that envisions itself as a "global mobile technology group." GHG announced this week that it has begun construction of an intelligent satellite production and testing facility that will include modular satellite manufacturing, satellite testing, satellite R&D, and cloud computing centers.

Update Mar 2, 2024:

Geely launched eleven satellites in the same 50-degree inclination plane as the first nine, but there was a considerable delay between the two launches. The first nine were launched in June 2022 and the second 11 were launched in February 2024. The delay may have been caused by a satellite re-design -- The mass of these satellites is 130 kg whereas the first nine satellites had masses of 100 kg.

The launch cadence will have to speed up if they are to reach their goal of beginning service with 72 t satellites next year.

China on Its Way to Becoming a Formidable Satellite Internet Service Competitor

In a study of the Internet in China in the late 1990s, my colleagues and I observed that "China has been able to execute plans effectively by allocating resources to competing, government-owned enterprises," and Kai-Fu Lee shows that they have pursued a similar strategy with respect to AI. Now they are doing the same with low-Earth orbit (LEO) broadband satellite constellations.

Low-Earth Orbit (LEO) Satellite Internet Service Developments for 2019

I posted reviews of important LEO-satellite Internet service developments during 2017 and 2018. I've been updating those posts during the years and have 16 new posts for 2019. In 2019 we saw four inciteful simulations, Leosat suspending operations and Amazon announcing the availability of a new ground station service and plans for a LEO constellation, progress in phased-array antennas but a lowering of expectations for inter-satellite laser links (ISLLs), new competition from China...

Starlink Simulation Shows Low Latency Without Inter-Satellite Laser Links

Handley's simulation shows that, while not as fast as an equivalent ISLL path, long bent-pipe paths would typically have lower latency than terrestrial fiber routes between the same two points. Mark Handley, a professor at University College London, has made two terrific videos based on runs of his simulation of the first – 1,584 satellite – phase of SpaceX's Starlink Internet-service constellation. I discussed the first video, which assumes that the satellites have inter-satellite laser links (ISLLs), in recent post.

Industry Updates

There are no postings submitted to this section yet.