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pierredv : meo   17

Soyuz launch completes first-generation O3b constellation - SpaceNews.com Apr 2019
"European launch provider Arianespace completed SES’s first-generation O3b constellation April 4 [2019] with the Soyuz launch of four satellites."

"SES now has 20 O3b satellites in medium Earth orbit. Franco-Italian manufacturer Thales Alenia Space built the Ka-band satellites, each of which carries 20 gigabits per second of throughput. "

"John-Paul Hemingway, SES Networks CEO, stood by SES’s decision to focus on medium Earth orbit, arguing that low Earth orbit systems will face latency challenges similar to GEO satellites because their closer proximity to the Earth means smaller coverage areas, necessitating routing traffic through multiple stops for long-distance communications. "
SpaceNews  O3b  space  launch  Soyuz  SES  MEO 
april 2019 by pierredv
Viasat shrinks MEO constellation plans - SpaceNews.com Nov 2018
"... another satellite operator is reducing the size of its proposed constellation. Viasat of Carlsbad, California, modified its design for a medium-Earth-orbit constellation that would consist of 20 telecom satellites instead of 24 as originally envisioned, the FCC said Nov. 2."

The smaller constellation would orbit in four orbital pathways in 8,200-kilometer orbits, with five satellites per pathway"

"Viasat is one of several operators to have modified its constellation plans since 2016. The new approvals SpaceX is seeking cover an additional 7,518 satellites in V-band, a rarely used spectrum.

Telesat wants to double its approval, adding another 117 satellites that, like SpaceX, would use V-band spectrum.

OneWeb also asked the FCC to OK 1,200 more satellites in March, although its new request has not yet been scheduled for a vote. "
Viasat  NGSO  satellite  MEO  FCC  constellations 
november 2018 by pierredv
Antenna builder ThinKom makes push for constellation market - SpaceNews.com Oct 2018
"ThinKom tested a phased array antenna with SES in August, practicing links with O3b satellites in medium Earth orbit as they rose over the horizon and then tracking them for 30 minutes each.

"Last month, ThinKom and Telesat announced plans to test an antenna with a Telesat prototype satellite in low Earth orbit (LEO) and to collaborate on business-grade terminals for Telesat’s planned 120-satellite LEO constellation. "

"The absence of such flat-panel antennas, as constellations start launching and high-throughput geostationary satellites grow in number, has satellite operators “all pretty much desperate to see somebody bring a solution to market,” according to Chris Quilty, president of Quilty Analytics. "

"ThinKom is best known for its ThinAir Ku3030 antennas that inflight connectivity provider Gogo builds into its 2Ku airplane Wi-Fi terminals. ... Bill Milroy, ThinKom’s chairman and chief technical officer, said his company intends to use the same phased array technology it has used for antennas on aircraft "

"SES is attempting to cultivate commercially viable flat-panel antennas for O3b mPower, its next-generation constellation, having contracted with Viasat, Alcan Systems and Isotropic Systems last year to build electronically steered antennas. "

"ThinKom’s approach differs from SES’s other three partners in that its antennas don’t use electronic steering, despite being relatively flat. The aeronautical antenna it is testing with SES is 20 centimeters thick and uses mechanical systems to track satellites. "

"Whereas a ThinKom antenna requires around half a second to switch satellites, an electronically steered antenna has the potential to switch in microseconds"

"ThinKom is targeting $10,000 for enterprise, or business-grade, terminals. ... For consumer terminals, ThinKom is targeting “sub-$1,000” prices."
ThinKom  SES  MEO  NGSO  satellite  antennas  Telesat  O3b  LEO 
october 2018 by pierredv
Viasat’s Dankberg explains medium Earth orbit thinking, global expansion strategy - SpaceNews.com Aug 2018
"Viasat is still working on a medium-Earth-orbit satellite constellation idea revealed almost two years ago, but has not finalized what that system would look like, Mark Dankberg, CEO of Viasat, said Aug. 9. Viasat is “putting a bunch of work” into optimizing a 24-satellite system disclosed in a 2016 application to the U.S. Federal Communications Commission that would provide connectivity using Ka-band and the lesser used V-band spectrum. "

“The direction we’ve been looking at is really looking at the non-GEO and the GEO as an integrated system, and that relieves that constraint. We don’t have to use the non-GEO to provide coverage everywhere.”

Viasat’s approach to globalization is to “really understand each market and be able to deliver services to end users in those markets, not just sell to intermediaries,” [Mark Dankberg] said.
SpaceNews  Viasat  MEO  NGSO  satellite  business 
august 2018 by pierredv
MEO startup Methera plans “high density” HTS constellation - SpaceNews.com aug 2018
"In medium Earth orbit, the only system providing satellite broadband today is SES Networks’ constellation of 16 O3b satellites. A British startup with its own 16-satellite constellation idea wants to change that. Methera Global Communications estimates it needs $500 million to build and launch a constellation of satellites each equipped with 40 gigabits of capacity to beam down Ka-band connectivity to highly concentrated areas. If successful, Methera will launch its first spacecraft in 2022, with service starting that same year."

" “Instead of trying to put a thin veneer of coverage around the globe, what we’re doing is looking at a small number of targets where we will put lots of capacity,” [CEO Chris McIntosh] said. Methera’s 700-kilogram satellites — the same mass as the first-generation O3b satellites — will hone capacity on extremely specific locations, targeting a small number of high-value customers "

"But positioning the satellites in medium Earth orbit means customers of Methera’s system will need advanced antennas that can track the satellites as they move relative to the Earth’s surface. ... O3b faced the same challenge and, finding flat panel, electronically steerable antennas commercially unavailable, started service in 2014 with terminals using two dishes ensuring a constant link for uninterrupted service. ... Methera is focusing initially on parabolic antennas as well"

"Methera has a pending application with the U.K.’s telecom regulator Ofcom to license its low-latency satellite system, McIntosh said. The company has not applied for market access in the U.S. with the Federal Communications Commission because the U.S. is not an area of initial focus, he said. "

"16 satellites in 18,000-kilometer polar orbits — about 2,000 kilometers below the U.S. Air Force’s GPS satellites"
SpaceNews  Methera  UK  NGSO  MEO  satellite  broadband  O3b  antennas  Ofcom 
august 2018 by pierredv
FCC Issues Inter-Satellite Data Relay Network License to Audacy; Non-GEO Market Access to O3b - Via Satellite - June 2018
The U.S. Federal Communications Commission (FCC) has granted a license to Audacy that authorizes the space communications company operate the world’s first commercial inter-satellite data relay network.

The data relay network will utilize two ground stations, in San Francisco and Singapore, as well as three Medium Earth Orbit (MEO) satellites scheduled to launch in 2019. With this network, Audacy hopes the spectrum will be able to provide real-time downlink, continuous monitoring, and always-on command services to Low Earth Orbit (LEO) spacecraft.

Along with the Audacy license, the FCC has also granted O3b’s request to modify its existing U.S. market access grant by adding new non-geostationary satellites and new frequency bands to provide broadband communication services in the U.S.
ViaSatellite  Audacy  SES  O3b  FCC  NGSO  MEO 
june 2018 by pierredv
U.S. FCC Expands Market Access for SES O3b MEO Constellation | SES June 2018
"SES announced today that it has been granted, by the U.S. Federal Communications Commission (FCC), authorization to serve the U.S. market using a significantly expanded O3b fleet in the Medium Earth Orbit (MEO)."

The FCC grant opens significant additional frequencies to SES for use in its non-geostationary (NGSO) constellation and enables it to deploy O3b mPOWER satellites into inclined and equatorial orbits, delivering full global pole-to-pole coverage. A total of 26 new O3b satellites are authorized, in addition to the 16 satellites already operational and in orbit. The grant allows SES to add 4 satellites to its existing O3b constellation, which are scheduled for launch next year, and provides the framework for SES to triple its next-generation O3b mPOWER fleet by giving U.S. market access for another 22 super-powered satellites, of which 7 are currently under construction and scheduled for launch starting in 2021.
SES  satellite  MEO  O3b  FCC  NGSO 
june 2018 by pierredv
FCC Approves Audacy license for commercial satellite data-relay constellation - SpaceNews.com Jun 2018
"The U.S. Federal Communications Commission granted a spectrum license June 7 to Audacy, the Silicon Valley startup planning to establish a space-based commercial communications relay network."

"Audacy plans to send large satellites into medium Earth orbit and to begin providing services in 2020 for satellite, human spaceflight and launch vehicle operators including data downlink, continuous monitoring and command services"
SpaceNews  FCC  Audacy  NGSO  space  satellite  MEO 
june 2018 by pierredv
US DOD Partners with SES to Secure O3b MEO Services - Via Satellite - Jun 2018
"SES, has signed a single-award Blanket Purchase Agreement (BPA) with the U.S. Department of Defense (DOD) for Medium Earth Orbit (MEO), low-latency, High Throughput Satellite (HTS) services. The total amount of all orders placed against the BPA cannot exceed $516.7 million over a five-year period of performance from May 1 this year to April 30, 2023.

With this agreement, DOD customers will have the opportunity to access SES’ O3b MEO services worldwide. The BPA scope of work covers managed services, including HTS capacity and broadband services, gateway services, and monitoring and control services, as well as satellite terminals, field service representative support, training and terrestrial backhaul."
ViaSatellite  SES  O3b  DoD  MEO  HTS 
june 2018 by pierredv
LEO and MEO broadband constellations mega source of consternation - SpaceNews.com Mar 2018
"the rush to HTS is driving down bandwidth prices so fast that some fairly low-mileage satellites are struggling to keep up."

“At the moment there is a potential scramble for who is going to be the third player between Telesat, LeoSat and SpaceX,” said Farrar. “It’s probably going to be clear in the next 12 months which of those is out ahead.”

"Perhaps the biggest variable in calculating demand is figuring out what consumers will have to pay for the user terminal—the receiver and antennas customers will use to connect to the constellation."

"Farrar is among analysts who doubt consumer broadband will be the biggest application for LEO constellations. Bridging the digital divide is a laudable goal, but backhaul — using satellites to help cellular networks to increase coverage and improve service — is an early market they can dominate with or without cheap antennas."
SpaceNews  NGSO  LEO  MEO  GEO  HTS  broadband  satellite  Tim-Farrar  Armand-Musey  NSR  antennas  Kymeta  Phasor  commerce  trends 
march 2018 by pierredv
March 2018 - LEO/MEO Satellites Poised to Make a Mark in Military Sector | Via Satellite
"Satellites in LEO and MEO soon will be here to stay thanks to companies like LeoSat, OneWeb, and SES-owned O3b. The question is whether they also can go beyond meeting the needs of commercial and consumer users to also serving the needs of a dispersed, increasingly mobile military. Via Satellite talks to leading LEO and MEO industry figures to see how they envision their constellations supporting military missions globally in a fast-evolving threat environment."

"The United States Defense Information Systems Agency’s (DISA) recent Request for Information (RFI) calling for a low-latency satellite connectivity solution underscores the government’s openness for considering new non-Geosynchronous Earth Orbit (GEO) solutions. And that cooperative posture also has been illustrated during the Air Force’s wideband Analysis of Alternatives (AoA) exercise to define the future space architecture, where several LEO and MEO companies put forth their recommendations."

"LeoSat is on schedule to launch two demonstration satellites in the second half of 2019. Launch of the production satellites will begin in late 2020 and the constellation should be complete by 2022." LeoSat's Abad: “We are not looking to bring broadband down to every single person in the world. We want to provide carrier-grade telecommunications services via space.”

"Both LeoSat and OneWeb have received high-profile funding — SKY Perfect JSAT became an anchor investor in LeoSat in May, while OneWeb received $1 billion from Japan’s SoftBank last December, making it a 20 percent equity owner. OneWeb also has partnered with Airbus on its new high-volume production facility in Exploration Park, Florida."

“What needs to change is the ground infrastructure — you can’t build a LEO constellation realistically with two parabolic antennas and expect to reach the scale and volume that these providers talk about,” says Brad Grady, senior analyst in Northern Sky Research’s (NSR)

"NSR estimates that the defense sector will require about 14 gigabits per second of non-GEO HTS capacity demand by 2025, representing an 18 percent annual growth rate from 2015."

“Everyone has figured out that the critical point in launching these new constellations is the antenna system. You can’t have a successful non-GEO network without a very agile, very capable antenna technology,” says David Helfgott, CEO of Phasor, one of a handful of antenna technology providers who will plan to offer Commercial-Off-the-Shelf (COTS) antenna solutions for these up-and-coming constellations in the next 12 to 36 months.
ViaSatellite  LEO  MEO  ElectronicallySteerableAntenna  Phasor  satellite  defense  DoD  SES  NSR  LeoSat  OneWeb  venturecapital  VC  investing  antennas 
march 2018 by pierredv
Sabbagh: SES is a “Lonely Voice” in the Industry | Via Satellite, Jan 2018
SES was the talk of World Satellite Business Week (WSBW) late last year when it announced a major new strategic initiative, mPower, through O3b. SES has contracted with Boeing Satellite Systems, to build seven super-powered Medium Earth Orbit (MEO) satellites. The constellation will have 30,000 fully-shapeable and steerable beams that can be shifted and switched in real time to align with customers’ quickly changing growth opportunities.

... You have to remember that O3b was initially designed to provide very high throughput to a small number of clients each with very high bandwidth requirements. The evolution we were looking for was one where we could further advance the throughput performance while achieving greater flexibility and scalability on the bandwidth in order to serve and empower a much larger market.

... The first seven satellites of the new system will bring multi-terabits of productivity. We can scale this up as we add new assets into the constellation.

VIA SATELLITE: Has the industry been slow to change?

Sabbagh: The answer is yes, and it is the predicament of every industry where there is a well-established playbook that yields rich economic returns.
ViaSatellite  SES  satellite  O3b  MEO  NGSO  interviews 
january 2018 by pierredv
Satellite Internet in Rural Sub-Saharan Africa: a Reality Check | LinkedIn, Eric Anderson, Sep 2017
"Here are my partly-informed observations based on several short visits to one small area of rural sub-Saharan Africa since 2010. In summary:
1. Satellite coverage is beginning to appear, but it’s spotty, expensive and limited,
2. Mobile terrestrial network use is widespread and growing and
3. There are other more immediate challenges unrelated to internet access."

"One intriguing offering is hybrid terrestrial-satellite connectivity with intelligent switchover and appropriate utilization of download and upload capacities as promoted by companies like Forsway, and in the thinking of larger entities like Facebook and OneWeb."
satellite  Africa  GEO  MEO  LEO  OneWeb  Kenya 
november 2017 by pierredv
SES Wins Multiple Government Contracts for MEO Capacity - Via Satellite - Oct 2017
"By the end of 2017, SES GS will be delivering nearly 4 Gigabits per second of managed O3b services supporting 13 sites globally to customers ranging from the Department of Defense (DOD) to the National Oceanic and Atmospheric Administration (NOAA)."
SatelliteToday  SES  O3b  MEO  DOD  NOAA  satellite 
october 2017 by pierredv
September/October 2017 - Bandwidth Management: New Paths in the LEO and MEO Era | Via Satellite
"The advent of new High Throughput Satellites (HTS) will add to the swell of LEO and MEO bandwidth supply. As capacity will likely reach unprecedented levels, can the industry expect a surplus? And would this render bandwidth management less vital? Market players break down the demands and trends, revealing that bandwidth management solutions will see greater importance."

"Looking singularly on satellite networks, there are a few things bandwidth management can do: Adaptive Coding and Modulation (ACM), TCP/IP proxy, compression, caching and the like. However, SpeedCast prefers to think beyond that, explains Berge, adding that customers are benefiting from having hybrid networks and, therefore, the company has a focus on Software Defined Networks (SDN)."
SatelliteToday  LEO  MEO  satellite  HTS  SDN 
august 2017 by pierredv
Satellite Constellation — Audacy
"Audacy’s relay satellites are purpose-built and highly capable space-to-space communications nodes. In the first generation, a total of three satellites enable complete coverage anywhere from the ground out to 10,000 km orbit altitude. Beyond that, the link seamlessly transitions to ground based assets providing connectivity as far as lunar distances.

The constellation is deployed in a unique 3:1 harmonic resonance Medium Earth Orbit (MEO) at an altitude of 14,000 km. In this orbit, it each satellite travels around the Earth in about 8 hours. All satellites maintain continuous connectivity with the ground and each other using multiple signal pathways for network resilience."
MEO  satellite 
may 2017 by pierredv

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