Спутник связи. Alphasat 1-XL. [Редактировать]

КА Alphasat-I-XL пятого поколения является первым спутником, изготовленным на спутниковой платформе (СП) Alphabus, которая разработана французским и европейскими космическими агентствами. На СП Alphabus  компаниями Astrium Satellite и Thales Alenia Space при финансировании Агентства ESA и Космического агентства Франции CNES были установлены четыре демонстрационных ПГ. Консорциум Inmarsat разрешил Агентству ESA в течение 3 лет продолжать испытания технологических ПГ на КА Alphasat. В их число входят испытания лазерных связных терминальных устройств, результаты которых будут использованы в создании коммерческой глобальной системы передачи данных. На частотах диапазонов Q и V будут испытаны перспективные радиосвязные устройства, а новый астродатчик оснащен детектором с активными пикселями. КА Alphasat дополнит пропускную способность системы Inmarsat на частотах диапазона L (широкополосный растянутый) в орбитальной позиции 25° в.д. Расчетный срок активного существования спутника – 15 лет.

Аппарат куплен консорциумом Inmarsat с целью добавить пропускную способность к своему основному бизнесу на частотах диапазона L. Спутник планируется эксплуатировать в орбитальной позиции (ОП) 25° в.д., где в настоящее время работает КА Inmarsat-4F. Через 6 месяцев испытаний на орбите КА Alphasat-I-XL займет ОП 25° в.д. и будет использоваться для обслуживания абонентов по 400 остронаправленным лучам, а КА Inmarsat-4F будет переведен в новую ОП с целью расширения зоны покрытия. В спутнике Alphasat-I-XL используется разработанный компанией Astrium цифровой процессор обработки сигнала. Фактически в нем объединено 8 процессоров обработки сигнала, которые разделены на две группы, по 4 процессора в каждой. Общая масса процессора 250 кг. Каждый из процессоров состоит из 17 базовых компьютеров. Скорость выполнения операций – 2 трлн/c. В зону обслуживания КА Alphasat-I-XL войдут страны Африки, Среднего Востока, большинство стран Европы и Центральной Азии.

Некоторые технологические разработки, сделанные по обобщенному проекту Alphabus/Alphasat, уже используются в коммерческих спутниковых платформах компаний Astrium Satellites и Thales Alenia Space. К новым технологиям относятся: 100-вольтовый регулятор снабжения энергией, который компания Astrium включила в линию производства по программе Eurostar; разработанная французской компанией Snecma плазменно-электрическая двигательная система PPS 1350; и связная модульная структура, обеспечивающая для тяжелых полезных грузов совместимость с главной структурой спутника.

Для операторов других коммерческих спутниковых систем связи приобретение цифровых процессоров обработки сигнала затруднительно ввиду их высокой стоимости, поэтому они заказывают спутники с ретрансляторами без преобразования сигнала на борту.

Дополнительные наименования

#НаименованияПоиск в новостяхПоиск в документах
1Inmarsat-4A F4НайтиНайти
2Inmarsat XLНайтиНайти

Дополнительная классификация

#Наименования
1Все спутники связи

Технические характеристики

#ХарактеристикаЗначение
1Масса, кг6649
2Масса (сухая), кг3500
3Диаметр (антенны), метра12
4Платформа 1xAlphabus
5Мощность, Вт12000
6Размах солнечных батарей, метра40
7Размеры, метра7,1×2,5×2,8

Пусковые характеристики

#ХарактеристикаЗначение
1Код NSSDC2013-038A

Экономические характеристики

#ХарактеристикаДата измеренияЗначение
1Стоимость (аппарат), млн. долл.365

Найдено 235 документов по запросу «Alphasat 1-XL». [Перейти к поиску]


Дата загрузки: 2017-03-18
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... Alphasat satellite and Inmarsat-5 satellites are currently under construction. Our Alphasat satellite... successful launch of our new Alphasat satellite which will provide in... BGAN on our Inmarsat-4 satellites. Alphasat Programme On 8 November 2007, Inmarsat... Alphasat, a new satellite to be deployed over the EMEA region. The Alphasat... launch vehicle. The launch of Alphasat will enhance our Inmarsat-4 network... risk of a satellite failure. With Alphasat deployed we will have in... redundancy, meaning a failure of either Alphasat or any one Inmarsat-4 satellite... satellites. Alphasat has a design life of 15 years. The Alphasat satellite will... L-band. In addition, we expect Alphasat’s advanced digital processor capability and.... The total cost of the Alphasat programme, including manufacture and launch... obtained launch insurance for our Alphasat and Inmarsat-5 satellites. Launch insurance... in-orbit insurance for our Alphasat and Inmarsat-5 satellites for a further... to the construction of our Alphasat and Inmarsat-5 satellites and associated... a result of our GX and Alphasat programmes. Offsetting the increase was... or proposed satellites, such as Alphasat and the Inmarsat-5s, are... and results of operations. Our Alphasat and Inmarsat-5 satellites are under... (the total capital expenditure for Alphasat and Inmarsat-5 satellites is estimated... 13 years. The Inmarsat-5 and Alphasat satellites have design lives of... year in orbit of our Alphasat and Inmarsat-5 satellites. We have... in-orbit insurance for our Alphasat and Inmarsat-5 satellites for a further... are a party. Alphasat Contracts The material terms of the Alphasat material contracts..., is approximately EUR 260 million. Alphasat Phase B/C/D/E1 Contract with the... the build and launch of Alphasat by 31 December 2013; (b) embark... technology demonstration payloads; and (c) operate Alphasat for a period of three years... years after the commissioning of Alphasat. Price In addition to providing... a contribution towards the production of Alphasat and launch services costs and... its contribution in relation to Alphasat to our main subcontractors (Astrium...; • if we fail to launch Alphasat by 31 December 2013, or... conclude subcontracts without ESA’s consent. Alphasat Contract with Astrium On 8 November..., manufacture, test, integrate and prepare Alphasat for launch. The satellite is... terminates 40 calendar quarters after Alphasat’s successful injection into its orbital... the manufacture and integration of Alphasat and post–launch milestone and... incentive payments from us for Alphasat being successfully operated during 40... formula; • an option to require Alphasat to be stored for a period... ten months prior to shipping Alphasat; and • an option to purchase... in the following circumstances: (i) if Alphasat is delivered late, we receive... anticipates that it cannot deliver Alphasat by an agreed date and... of our Alphasat satellite development programme. We may launch Alphasat in a one... enable us to launch our Alphasat satellite, which will be an...-Orbit Insurance Contract for the Alphasat Satellite Inmarsat Launch Company Limited... in-orbit insurance for the Alphasat satellite through Willis, its UK... regarding the construction of the Alphasat satellite and its subsequent launch... of new terminals for the Alphasat and Global Xpress programmes and... have obtained launch insurance for Alphasat and our Inmarsat-5 satellites, this... construction primarily relate to the Alphasat satellite, Inmarsat-5 satellites and Global... commitments in respect of the Alphasat and Global Xpress programmes. 51... regarding the construction of the Alphasat satellite and its subsequent launch... construction primarily relate to the Alphasat satellite, Inmarsat-5 satellites and Global... commitments in respect of the Alphasat and Global Xpress projects. 33...



Дата загрузки: 2017-03-10
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... and/or services, complementing the AlphaSat mission. work in both according... identified at a What will the AlphaSat mission consist of and why... satcom competences in Europe. The AlphaSat is an ambitious mission that... interactive communications to mobile terminals. AlphaSat will also enable could either... industry on the World the AlphaSat mission programme and the small... new applications with relevant The AlphaSat mission comprises a core pre-operational... of new programmes such as AlphaSat and the Small Satellite while... launch of the AlphaSat satellite in 2010. Besides Alphasat, ESA is also... the dedicated satellites such as AlphaSat, the small GEO satellite, or... and/or services, complementing the AlphaSat mission. work in both according... identified at a What will the AlphaSat mission consist of and why... satcom competences in Europe. The AlphaSat is an ambitious mission that... interactive communications to mobile terminals. AlphaSat will also enable could either... industry on the World the AlphaSat mission programme and the small... new applications with relevant The AlphaSat mission comprises a core pre-operational... of new programmes such as AlphaSat and the Small Satellite while... launch of the AlphaSat satellite in 2010. Besides Alphasat, ESA is also... the dedicated satellites such as AlphaSat, the small GEO satellite, or... and/or services, complementing the AlphaSat mission. work in both according... identified at a What will the AlphaSat mission consist of and why... satcom competences in Europe. The AlphaSat is an ambitious mission that... interactive communications to mobile terminals. AlphaSat will also enable could either... industry on the World the AlphaSat mission programme and the small... new applications with relevant The AlphaSat mission comprises a core pre-operational... of new programmes such as AlphaSat and the Small Satellite while... launch of the AlphaSat satellite in 2010. Besides Alphasat, ESA is also... the dedicated satellites such as AlphaSat, the small GEO satellite, or...



Дата загрузки: 2017-02-22
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... to the United States. The Alphasat satellite is not visible to... three Inmarsat-4 satellites and one Alphasat satellite. Two of these SASs... years. 11 The Inmarsat-5 and Alphasat satellites have design lives of... our L-band services (e.g., in our Alphasat Inmarsat-4 F4 satellite), a recent decision..., and four Inmarsat-4 satellites (including Alphasat), launched in March 2005, November... of substantially all of our Alphasat capital expenditure by the end..., and four Inmarsat-4 satellites (including Alphasat), launched in March 2005, November... six wide spot beams (1) Inmarsat-4 Alphasat 3 (all in orbit) 1 (in orbit... BGAN on our Inmarsat-4 satellites. Alphasat Satellite In 2007, Inmarsat entered... of Alphasat, a new satellite to be deployed over the EMEA region. Alphasat... 2013. With the launch of Alphasat, we have enhanced our Inmarsat... Alphasat deployed we have in-orbit redundancy, meaning a failure of either Alphasat... disruption. Alphasat has a design life of 15 years. The Alphasat satellite is... of the L-band. In addition, Alphasat’s advanced digital processor capability and.... The total cost of the Alphasat programme, including manufacture and launch... fleet of three Inmarsat-4 satellites, Alphasat, and our first three Inmarsat... in-orbit insurance for our Alphasat and the first three Inmarsat... for the Inmarsat-4 satellites (including Alphasat) and the Inmarsat-5 satellites. The...



Дата загрузки: 2017-03-18
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... future. • Develop and Deploy our Alphasat Satellite to Enhance our Service.... We began construction of the Alphasat satellite in 2008 under a contract.... We expect that, when launched, Alphasat will allow us to deploy... for all our broadband services. Alphasat Programme On 8 November 2007, we... construction of a new satellite called Alphasat. Milestone payments for the construction... the Alphasat satellite using an Ariane 5 ECA launch vehicle. The Alphasat satellite... L-band. In addition, we expect Alphasat's advanced digital processor capability and... network and terminals and the Alphasat satellite project. We have experienced... network and terminals and the Alphasat satellite project. The reduction in... network and terminals and the Alphasat satellite project. Cash used in... the manufacture and launch of Alphasat, to maintain our existing network... reflects work related to the Alphasat project and GSPS. Allowing for... of construction related to the Alphasat satellite, the S-Band project, GSPS... or proposed satellites, such as Alphasat, are subject to construction and... build and launch of the Alphasat satellite. Under the agreement Inmarsat... of construction relate to the Alphasat satellite, the S-Band project, GSPS... commitments in respect of the Alphasat project. 29. Related party transactions... build and launch of the Alphasat satellite. Under the agreement Inmarsat...



Дата загрузки: 2017-03-09
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... SMART1 (5000 hours). Flying on Alphasat. TRL 9 Technical characteristics Manufacturer Model... qualified - Multimedia configuration – ESA/ARTES-8 - AlphaSat: qualified - Geomobile configuration – ESA/ARTES... platform Mass:14 Kg AlphaBus / AlphaSat Payload: 2 x PPS1350 Low Power Electric... for AlphaSat (early 2010) 15 years in orbit FMs for AlphaSat under... frame of GAIA. Flying on AlphaSat. TRL 9 150 @ 1 bar < 1 W – Actuation cycles... in flight on SMART-1 and Alphasat. TRL 9 Miniaturis ed Xenon flow... Spacebus and Proteus; flying on AlphaSat. TRL 9 MOOGBradford (NL) miniSAPT MOOG... regulator on SMART-1. Flying on Alphasat. TRL 9 Technical characteristics Manufacturer Development... the AlphaBus platform. Flying on AlphaSat Technical characteristics Manufacturer MT Aerospace... and 2 flight models delivered for AlphaSat, satellite in orbit since July... flight models were delivered for AlphaSat. Launched in July 2013, they... (Alphabus, with its first mission Alphasat) on the basis of a cooperation... of 100V (Eurostar 3000, Spacebus, AlphaSat) or for the ISS 83...



Дата загрузки: 2017-03-09
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... - 13:00 - Room A Session Ka 1: Alphasat Aldo Paraboni Program I Chairs: Enrico... Program Enrico Russo, ASI - Italy Alphasat Aldo Paraboni Mission Mission Overview... - Italy Q/V Band Ground Station for Alphasat TDP5 Telecommunication Experiment - Design and... Lang, OHB System AG Germany Alphasat Aldo Paraboni Mission: IOT Campaign... Codispoti, Enrico Russo, ASI Italy Alphasat Mission: TDPs Ground Segment and...:40 - 12:20 - Room A Ka 8: Alphasat Aldo Paraboni Program II Chairs... Netherlands First Results of the Alphasat Aldo Paraboni Communication Experiments Tommaso..., Giorgia Parca, ASI Italy The Alphasat Aldo Paraboni Communication Experiment: First... Castro, ESA - The Netherlands The Alphasat Aldo Paraboni Scientific Experiment: Objectives... the NASA Beacon Receiver for Alphasat Aldo Paraboni TDP5 Propagation Experiment... D First General Assembly of the Alphasat Aldo Paraboni Propagation Experimenters Group... of the Instruments for the Alphasat Aldo Paraboni IOT and Propagation...



Дата загрузки: 2017-01-16
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..., France, October 9-12 (2012) The Alphasat GEO Laser Communication Terminal Flight... GEN LCT) for use on Alphasat for GEO-LEO-Links. LCT... 3. the Alphasat LCT is seen with its customized thermal interface for Alphasat... will be performed with the Alphasat command set. The TV test... requirements for ALPHASAT. Figure 3. Alphasat LCT, equipped with MLI, with a Alphasat specific thermal Interface, mounted in its transportation frame IV. ALPHASAT LCT MECHANICAL TEST The Alphasat LCT was tested against the specific Alphasat... 4. Alphasat LCT mounted on a vibration adapter, ready for vibration testing V. ALPHASAT LCT EMC TEST The Alphasat LCT was tested against the specific Alphasat... tests were performed successfully. VI. ALPHASAT LCT THERMAL TEST Thermal test..., France, October 9-12 (2012) VIII. ALPHASAT LCT PERFORMANCE TEST RESULTS AND... taken for link estimation. The Alphasat LCT performance tests demonstrated that... met with sufficient margin. The Alphasat LCT was the first LCT... tested and delivered to the Alphasat space craft a first build of...



Дата загрузки: 2017-03-10
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... timeline review SwiftBroadband network updates • Alphasat • Beijing Satellite Access Station (SAS... • Maximising use of I-4s and Alphasat, plus a potential 4th Ocean Region... the I-4 / Alphasat network) Classic Aero H+ (I-3 and I-4 / Alphasat network) Classic Aero L (I-3 and I-4 / Alphasat network... to end 2018 Aero C (I-3 and I-4 / Alphasat network) 2011 2012 2013 2014...’s discretion 2022 2023 Alphasat: Addressing aviation terminal compatibility Alphasat: What is the... associated with any satellite handover Alphasat: Example routes affected by the...



Дата загрузки: 2017-03-28
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... build an advanced communications satellite. Alphasat will be the first of... and versatile than previous designs. Alphasat is set to bring affordable... users than previous telecoms satellites. Alphasat will support broadband services that... its global broadband service. The Alphasat contract is supported by ESA... one time. 1 1 Participants in the Alphasat contract signature ceremony held at...: ESA/S Corvaja 2 Artist’s image of Alphasat; Credit: Inmarsat 50 UK SPACE... currently working on contracts including: Alphasat, a powerful new communications satellite; BepiColombo...



Дата загрузки: 2016-12-29
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Laser Communication with Alphasat - FD Challenges and First Flight ....de Abstract: Inmarsat’s geostationary satellite Alphasat, launched on July 25, 2013... about the LCT operations aboard Alphasat and its counter terminals. The... performed links are presented. Keywords: Alphasat, Laser Communication, Attitude Dynamics, Flight... the end-user on ground [2,3]. 1 Alphasat, launched on July 25, 2013... laser to a GEO satellite, here Alphasat, whereof it is directly distributed... ground having constant visibility. On Alphasat this forwarding is done by... 1. Illustration of communications links with Alphasat [6] While DLR/GSOC only supported... the TDP1 terminal on-board Alphasat and all its counter terminals... Control Center with interfaces to [2,4]:  Alphasat Mission Control Center (INMARSAT, London... gives a brief introduction to the Alphasat mission which carries the laser... chapter 5. 2. Alphasat’s LCT and Counter Terminal Carriers The geostationary satellite Alphasat was... user data. A design sketch of Alphasat’s LCT is given in Fig... 2. Laser Communication Payload TDP1 on Alphasat [9] TDP1 is a completely autonomous optical... April 3, 2014. First links between Alphasat and S1A are planned for... laser communication, the visibility between Alphasat and a selectable counter terminal has... demonstrated using the example of Alphasat. 7 If during a link the pointing... vector p meas in direction from Alphasat-LCT to the counter LCT... of Alphasat’s commission phase in October 2013 the visibility windows between Alphasat... Forward Within this paper the Alphasat mission operating a laser communication terminal... performance of the LCTs on Alphasat and the optical ground station... which was successfully uploaded to Alphasat. Following links made use of... and the first links between Alphasat and S1A are planned for..., M. “Roadmap on Optical Communication Technology.” AlphaSat Hosted Payloads Workshop, Lisbon, Portugal....org/web/eoportal/satellite-missions/a/alphasat (Status April 14, 2014). [7] Kuhlmann...://www.esa.int/Our_Activities/Telecommunications_Integrated_Applications/ Alphasat/Optical_Communication (Status April 14, 2014...://www.esa.int/Our_Activities/Telecommunications_Integrated_Applications/ Alphasat/Alphasat_s_laser_terminal_on_target (Status April 14, 2014... KG – Press Release “Laserstrahl vom Alphasat auf Teneriffa empfangen.” Backnang, Germany...