OneWeb satellite constellation

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OneWeb satellite constellation
KSC-20170316-PH KLS01 0007~orig.jpg
Model of a OneWeb satellite
ManufacturerOneWeb Satellites
(OneWeb and Airbus)
Country of originUnited Kingdom
OperatorOneWeb
ApplicationsInternet service
Website
Specifications
Spacecraft typeSmall satellite
Launch mass150 kg [1]
EquipmentKu-band antennas
RegimePolar low Earth orbit
(1,200 km (750 mi))
Production
StatusActive
Launched322
Maiden launch27 February 2019
Last launch14 September 2021
OneWeb Logo.png

The OneWeb satellite constellation is a planned initial 648-satellite constellation which is in the process of being completed in 2022,[2] with a goal to provide global satellite Internet broadband services to people everywhere, starting in 2021. The constellation is being deployed by OneWeb, headquartered in London, with offices in California, Florida, Virginia, Dubai and Singapore.

OneWeb's first six satellites were launched in February 2019,[3] the first large batch of 34 satellites was launched in February 2020,[4] and another 34 were put into orbit in March 2020.[5] These were followed by more launches in 2021. The small satellites were built by OneWeb Satellites, a joint venture between Airbus and OneWeb.[6] The satellites are in a circular low Earth orbit, at approximately 1,200 km (750 mi) altitude,[7] transmitting and receiving in the Ku-band of the radio frequency spectrum.[8]

In late March 2020, after securing its global satellite spectrum and orbital rights with the ITU and launching 74 satellites, OneWeb filed for Chapter 11 bankruptcy protection due to financial difficulties caused by the COVID-19 pandemic, but maintained the satellite operations center for the satellites already in orbit while the court determined the disposition of OneWeb's assets. The company exited bankruptcy in November 2020, after being sold to the Government of the United Kingdom and Bharti Global.[9]

History[]

Google participation and transfer of the spectrum[]

Early reports of the potential involvement of Google in offering broadband internet services surfaced in February 2014, when a "very large [satellite] constellation" was rumored to be in the plans with as many as 1,600 satellites.[10] In May 2014, the early concept had been to have at least 20 satellites operating in each of 20 orbital planes to provide consistent internet coverage over the surface of the Earth.[8] By June 2014, WorldVu (later to be renamed to OneWeb) had acquired the satellite spectrum that was formerly owned by SkyBridge, a company that went bankrupt in 2000,[11] in a much earlier attempt to offer broadband Internet services via satellite.[12]

By September 2014, the WorldVu company had 30 employees, and several Google employees who had joined Google as part of the acquisition of O3b Networks in 2013 — Greg Wyler, and — left Google to become a part of WorldVu Satellites Ltd. They took with them the rights to a certain radio frequency spectrum that could be used to provide Internet access. At the time, WorldVu was working closely with SpaceX and SpaceX's founder Elon Musk to explore satellite internet services,[13] although no formal relationship had been established and no launch commitments had been made in 2014.[14]

SpaceX, initial manufacturing plans[]

By November 2014, The Wall Street Journal reported that Musk and Wyler were considering options for building a factory to manufacture high-volume low-cost satellites, and that "initial talks had been held with state officials in Florida and Colorado"[15] about potentially locating a factory in those states, as well as that SpaceX would likely launch the satellites.[15] Also in November 2014, WorldVu issued a tender "to satellite manufacturers for 640 125-kg satellites", asking for responses by mid-December 2014, having secured regulatory approval for use of the requisite electromagnetic spectrum communication frequencies in mid-2014.[16][17]

The 2014 OneWeb solicitation to satellite manufacturers was for a total build of approximately 900 small Internet-delivery satellites, including ground and on-orbit spares. Responses were received from both European and American manufacturers including Airbus Defence and Space, Lockheed Martin Space Systems, OHB SE, SSL and Thales Alenia Space, and discussions focused on how each of these companies might "escape their status-quo histories as major space hardware contractors and remake themselves into producers capable of producing multiple satellites per month, each with a cost of fewer than US$500,000".[18] OneWeb announced that it planned to form a joint venture with the winning bidder and open a new facility for manufacturing the new smallsats.[18]

Funding from Virgin Group and Qualcomm[]

In January 2015, The Wall Street Journal reported that WorldVu, now operating under the name OneWeb Ltd, had secured funding from Virgin Group and Qualcomm to build and launch the constellation.[19][20] OneWeb also divulged that the planned satellites would weigh approximately 125 kg and that the plans were to deploy approximately 650 of them in low Earth orbit to operate at 1,200 km (750 mi) altitude.[19][20] Just a few days later, Elon Musk announced the rival Starlink venture, with the opening of the SpaceX satellite development facility in Seattle, Washington, with the intent of taking SpaceX itself into the business of internet provision and internet backhaul services, initially announced as aiming to build an approximately 4000-satellite constellation, with the first generation becoming operational in approximately 2020.[21]

The satellites for the OneWeb constellation were initially announced to be in the 110 kg (240 lb) class, about the same size as the two Earth-imaging satellites that were then operated by Skybox Imaging, which Google acquired in August 2014.[20][22][23] However, by the following year, sources put the satellites nearer 175–200 kg (386–441 lb) in mass.[18][24]

Arianespace and Virgin Galactic as planned launch operators[]

In March 2015, OneWeb indicated that they intended to select a launch service provider by mid-2015[18] and in June 2015 announced that Arianespace was contracted to provide 21 multi-satellite launches on Soyuz beginning in 2017 with Virgin Galactic under contract to provide 39 single-satellite launches using its LauncherOne smallsat launch vehicle.[25][26]

By 2015, there was also an option to use Ariane 6 for up to three launches after 2021, making this the first potential contract announced for that launch vehicle.[24][27][28]

By June 2015, the company had modified their plan somewhat to orbit a larger constellation of 720 satellites, operating in low Earth orbit at 1,200 km (750 mi) altitude,[24] with that plan reduced by early 2016 back to just 640 satellites.[7]

Manufacturers selected[]

In June 2015, Airbus Defence and Space was selected to build the satellites,[29][30] and development was kept on the schedule one year later with the first ten satellites still headed for a 2017 launch on a "Europeanized Soyuz launch vehicle".[31] That same month, Hughes Communications made an equity investment in OneWeb, and agreed to produce the ground network system for OneWeb.[32][33][34]

Largest SoftBank investment[]

In December 2016, SoftBank Group Corp. agreed to invest US$1 billion in OneWeb, thus becoming OneWeb's largest shareholder, with a roughly 40% stake. Another US$200 million was funded at that time by its current investors, which include Qualcomm Inc., Airbus Group and Virgin Group. The transaction was expected to close in the first quarter of 2017.[35][36]

Plans extension and buildup deadlines[]

In February 2017, OneWeb announced that it had sold most of the communication capacity of its initial 648 satellites, and was considering nearly quadrupling the size of the satellite constellation by adding 1,972 additional satellites that it has priority spectrum license rights for.[36] With the original capital raise of US$500 million in 2015, plus the US$1 billion investment of SoftBank in 2016, previous "investors committed to an additional US$200 million, bringing OneWeb's total capital raised to US$1.7 billion".[36]

In March 2017, OneWeb filed with the US regulatory authorities (FCC) plans to field a constellation of an additional 2,000 "V-band satellites in non-geosynchronous orbits to provide communications services" in an electromagnetic spectrum that had not previously been "heavily employed for commercial communications services". This would include "720 LEO V-band satellites at 1200 kilometers, and another constellation in Medium Earth Orbit (MEO) of 1,280 satellites".[37] Some controversy arose in 2015–2017 with regulatory authorities on licensing the communications spectrum for these large constellations of satellites. The traditional and historical regulatory rule for satellites licensing of communications spectrum has been that satellite operators could "launch a single spacecraft to meet their in-service deadline [from the regulator], a policy subsequently seen as allowing an operator to block the use of valuable radio spectrum for years without deploying its fleet".[38] By 2017, the FCC had set a six-year deadline, requiring an entire large constellation to be deployed within that timeframe to comply with licensing terms. OneWeb received approval under that ruling.[38] By 2019, the ruling was adjusted to stat that half of a constellation must be in orbit within six years of the licensing date, with the full system in orbit within nine years.[39]

First launches[]

In August 2018, it was announced that the first test satellite launch might move into 2019, and would be no earlier than mid-December 2018.[40] By December 2018, the start was rescheduled to be no earlier than March 2019.[41] The satellite system is now planned to be fully online by 2027.[42] After OneWeb had built the initial satellites and done ground testing where they found the as-built sats "demonstrated better than expected performance", OneWeb announced in December 2018 that the company will need only 600 satellites rather than 900 previously planned for the initial constellation.[41]

In February and March 2020, OneWeb completed two successful launches of 34 satellites into orbit on a Soyuz rocket from Baikonur, Kazakhstan.[4][5]

Bankruptcy and bankruptcy exit[]

OneWeb and all its affiliates filed for bankruptcy on 27 March 2020, after experiencing difficulties raising capital to complete the building and deployment of network due to the coronavirus pandemic.[43][44]

The company maintained its satellite operational capabilities while the company was being restructured by the court.[45][46] On 3 July 2020, OneWeb was purchased by Bharti Global (a former OneWeb partner) and the Government of the United Kingdom.[47][48] The sale closed in November and OneWeb exited Chapter 11 bankruptcy.[49]

Additional investment in 2020 and 2021[]

In July 2020, Bharti Global and the UK government each announced a plan to invest US$500 million into OneWeb for a combined investment of US$1 billion.[50][51][52][53]

On 15 January 2021 OneWeb announced it had secured additional funding from SoftBank Group Corp and Hughes Network Systems LLC, bringing OneWeb's total funding to $1.4 billion for the first-generation satellite fleet, totalling 648 satellites.[54] A further $550m was invested by Eutelsat, the French Global satellite operator, on 27 April 2021. This increased total fresh equity since emergence from Chapter 11 to $1.9 billion with no debt. This brought the company to 80% of is previously announced $2.2 billion funding goal,[55] and fund raising is actively continuing.

Active internet services[]

In May 2021, OneWeb said that its then current constellation (218 spacecraft) as well as an additional 36 satellites planned to launch on July 1st, would be ready to provide internet services to regions north of 50 degrees latitude by the end of 2021. This includes the United Kingdom, Alaska, Northern Europe, Greenland, Iceland, the Arctic Seas, and Canada.[56]

The company’s 648-satellite network is planned for completion by mid-2022 and OneWeb will make global internet services available at that time.[56]

Launches[]

On 27 February 2019, OneWeb successfully launched the first 6 of the 648 planned satellites (600 active plus 48 on-orbit spares) into low Earth orbit from the Centre Spatial Guyanais using a Russian Soyuz ST-B rocket.[3][57]

List of launches[]

In November 2019, OneWeb planned monthly launches to begin in January 2020,[58] although the first of these launches was delayed to early February 2020,[4] and bankruptcy and subsequent reorganization delayed the third launch to December 2020.[59] Since December 2020, OneWeb has launched 72 additional satellites from Vostochny, Siberia on 25 March and on 26 April. In 1 July 2021 OneWeb launched a further 36 satellites, to take its in-orbit mega-constellation to 254[60] and making OneWeb the second largest satellite fleet in orbit.[61]

Flight No. Date/Time (UTC) Launch site Launch vehicle Number deployed Outcome
1 27 February 2019[62] Kourou, ELS Soyuz ST-B / Fregat-MT 6 (test satellites) Success
2 6 February 2020[4] Baikonur Cosmodrome, Site 31 Soyuz 2.1b / Fregat-M 34 (first launch of operational satellites) Success
3 21 March 2020[5] Baikonur Cosmodrome, Site 31 Soyuz 2.1b / Fregat-M 34 Success
4 18 December 2020[63][59] Vostochny Cosmodrome, Site 1S Soyuz 2.1b / Fregat-M 36 Success
5 25 March 2021[64] Vostochny Cosmodrome, Site 1S Soyuz 2.1b / Fregat-M 36 Success
6 25 April 2021[65] Vostochny Cosmodrome, Site 1S Soyuz 2.1b / Fregat-M 36 Success
7 28 May 2021[66] Vostochny Cosmodrome, Site 1S Soyuz 2.1b / Fregat-M 36 Success
8 1 July 2021[67] Vostochny Cosmodrome, Site 1S Soyuz 2.1b / Fregat-M 36 Success
9 21 August 2021[68] Baikonur Cosmodrome, Site 31 Soyuz 2.1b / Fregat-M 34 Success
10 14 September 2021[69] Baikonur Cosmodrome, Site 31 Soyuz 2.1b / Fregat-M 34 Success
11 14 October 2021 Vostochny Cosmodrome, Site 1S Soyuz 2.1b / Fregat-M 36 Planned
12 23 December 2021 Baikonur Cosmodrome, Site 31 Soyuz 2.1b / Fregat-M 34 Planned
13 29 December 2021 Kourou, ELS Soyuz ST-B / Fregat-M 34 Planned
14 February 2022 Kourou, ELS Soyuz ST-B / Fregat-M 34 Planned

Total operational satellites launched: 316 as of September 14, 2021.

Design characteristics[]

The satellites in the OneWeb constellation are approximately 150 kg (330 lb) in mass,[1] a bit smaller than the 2015 design estimate of 175–200 kg (386–441 lb).[18][24] The 648 operational satellites are to operate in 12 near polar orbit planes at 1,200 km (750 mi) altitude, at 86.4° orbital inclination. Initially 18 orbital planes with 49 satellites per plane was planned, requiring 882 satellites plus some spares, but improved satellite coverage capability allowed this to be reduced to 12 planes of 49 satellites requiring 588 satellites plus some on-orbit spares.[70][71][72]

The first-generation satellites do not have inter-satellite data links, so will only provide a user service when also in the range of a gateway ground station.[72]

The satellites will provide user service in the Ku-band, communicating in the microwave range of frequencies in the 12–18 GHz portion of the electromagnetic spectrum.[8][20] Links to gateway ground stations will be in the Ka-band.[72] The satellites use a technique called "" in which the satellites are slightly turned to avoid interference with Ku-band satellites in geostationary orbit. The user terminal antenna on the ground will be a phased array antenna measuring approximately 36 by 16 cm (14.2 by 6.3 in) and will provide Internet access at 50 megabits/second downlink bandwidth [20] (almost certainly less uplink, but this number remains hard to pin down).[citation needed] The satellites will be designed to comply with "orbital debris-mitigation guidelines for removing satellites from orbit and, for low-orbit satellites, assuring that they reenter the Earth's atmosphere within 25 years of retirement".[30]

Intended markets[]

In March 2021, OneWeb stated its market will be primarily to businesses, governments including defence, phone network operators and clusters of communities, rather than to individual domestic customers which its competitor Starlink primarily targets.[73][74] The users willing to connect were advised to contact their local telecoms for additional info.[75]

Manufacturing and constellation rollout[]

OneWeb satellite manufacturing facility in Merritt Island, Florida

The constellation was originally announced in June 2014 to be just half of the total of approximately 720 satellites. A quarter of the satellites were to make up the initial constellation, and these would operate in the lower of the two proposed orbits, at approximately 850 km (530 mi).[12] The initial constellation would presumably be raised or lowered into its final orbital altitude of either 800 km (500 mi) or 950 km (590 mi) as consumer and business use of the broadband service grows over time.[8] By early 2015, OneWeb indicated that the first launches would occur no earlier than 2017.[20]

In February 2016, OneWeb announced that they would set up an assembly and test facility in Florida with plans to assemble and launch the majority of the satellites by the end of 2019, while manufacturing an additional 250 of the 140 kg-satellites as spares to be used in later years.[7]

By the time the actual orbital deployment of the constellation began, in February 2019, the planned constellation size had settled once again at 648, near the original projection, with 600 active satellites with 48 on-orbit spares.[1]

In January 2020, OneWeb reached a production rate of two satellites per day. In February 2020, the company launched its first large batch of satellites.[76][77]

In January 2021, OneWeb amended its application with the Federal Communications Commission (FCC) to change the number of satellites planned for its Phase Two constellation to 6,372.[78][79]

Concerns[]

End-of-life concerns[]

With such a large number of satellites being added to the already crowded low Earth orbit, plans for handling the satellites once the operational life of each satellite is completed are an important consideration. Concerns about adding to the existing space debris problem have been expressed.[12]

With OneWeb satellites having higher orbits than the competing Starlink megaconstallation satellites (which will deorbit in ~5 years without action due to atmospheric drag), OneWeb satellites will not passively deorbit in a reasonable timeframe. As such, each OneWeb satellite has fuel allocated to be able to actively deorbit at its end of life.[80] OneWeb satellites are also equipped with an DogTag magnetic grappling fixture, to make it possible for another spacecraft to attach and change the orbit of satellites whose built-in deorbit functionality fails, though there does not currently exist commercial services to carry out this service.[81] The risk of a OneWeb satellite becoming a source of debris was determined to be <0.01, which meets NASA’s Technical Standard.[82]

Interference with other Earth-bound transceivers[]

OneWeb competitor, satellite fleet operator ABS, has expressed concerns about the amount of electromagnetic interference that the OneWeb constellation could add to existing terrestrial transceivers.[83]

Russian security concerns[]

Vladimir Sadovnikov of the Federal Security Service (FSB) stated that the FSB was opposed to OneWeb covering Russia, saying that OneWeb could be used for espionage purposes.[84] OneWeb's request for a frequency band was previously rejected by the Ministry for Digital Development and Communications, purportedly due to outstanding legal issues.[84] FSB also proposed increasing scrutiny on other satellite Internet equipment in Russia.[85]

Competition[]

Competition to OneWeb for producing smaller and lower-cost satellites, in general, is thought to come "from other makers of small satellites, thought to include companies such as Nevada-based Sierra Nevada Corp. and Britain's Surrey Satellite Technology Ltd." as of 2014.[15]

Amazon announced a large broadband internet satellite constellation proposal in April 2019, planning to launch up to 3,236 satellites in the next decade in what Amazon calls "Project Kuiper", a satellite constellation that will work in concert[86] with Amazon's previously-announced large network of 12 satellite ground station facilities (the "AWS Ground Station unit") announced in November 2018.[87]

As of 2020, the major competitor is SpaceX's Starlink satellite network which has begun customer beta testing. However, SpaceX has a direct-to-consumer sales strategy, while OneWeb will work with partner telephone companies.[88]

Historically, earlier companies that have attempted to build satellite internet service networks and provide space-based internet connections have not fared well, as these services were hobbled by high costs which consequently attracted few users. Iridium SSC filed for bankruptcy protection in 1999, Globalstar did the same in 2002, and Teledesic suspended its satellite construction work in the same year.[15]

See also[]

  • Iridium satellite constellation — an operational constellation of 66 active satellites used to provide global satellite phone service
  • Orbcomm — an operational constellation used to provide global asset monitoring and messaging services from its constellation of 29 LEO communications satellites orbiting at 775 km
  • Starlink — a satellite constellation development project underway by SpaceX to deploy nearly 12,000 satellites in three orbital shells by the mid-2020s
  • China national satellite internet project
  • Lynk Global — a satellite-to-mobile-phone satellite constellation with the objective of coverage to traditional low-cost mobile devices
  • Teledesic — a former (1990s) venture to accomplish broadband satellite internet services
  • Viasat, Inc. — a current broadband satellite provider providing fixed, ground mobile, and airborne antennas

Literature[]

  • Derek Webber, No Bucks, No Buck Rogers: The Business of Commercial Space — Universal-Publishers, 2017 — p. 248 — 296 p. ISBN 9781627340915
  • Alessandra Vernile, The Rise of Private Actors in the Space Sector — Springer, 2018 — p. 37 — 121 p. ISBN 9783319738024
  • John Bloom, Eccentric Orbits: The Iridium Story — Grove/Atlantic Inc., 2016 — 577 p. ISBN 9780802192820

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  69. ^ Israël, Stéphane [@arianespaceceo] (22 August 2021). "We will be back on September 14 for our next @OneWeb launch, #ST35 -with one important milestone to @Arianespace's teams at this occasion