Спутник навигационных систем. Galileo FM3. [Редактировать]

Каждый спутник будет транслировать точные временные сигналы, эфемеридные и другие данные. Спутниковая группировка Galileo была оптимизирована согласно следующим параметрам: 

  • круговые орбиты (высота – 23222 км); 
  • наклонение орбиты – 56°; 
  • три орбитальные плоскости под равными углами; 
  • девять работающих спутников (в каждой плоскости) на равном расстоянии; 
  • один запасной спутник (также передающий сигналы) в каждой плоскости. 

Спутники Galileo имеют массу 700 кг, вырабатываемая мощность – 1600 Вт. Космический аппарат вращается вокруг направленной на Землю оси таким образом, что плоская поверхность солнечных батарей всегда обращена к Солнцу и получает максимальное количество солнечной энергии. Антенны в нижней части платформы, всегда направлены на Землю. Размеры платформы спутника – 2,7 x 1,1 x 1,2 м, в развернутом состоянии размах панелей солнечных батарей составляет 13 м.

Элементы спутников 

  • Антенна L-диапазона передает навигационные сигналы частотой 1200-1600 МГц. 
  • Антенна системы поиска и спасания (SAR) собирает сигналы бедствия наземных маяков и передает их на наземные станции для отправки в местные спасательные службы. 
  • Антенна С-диапазона принимает сигналы, содержащие полетные данные со станций Galileo «Земля-спутник». Такие сигналы содержат информацию по синхронизации бортовых часов с наземными часами и данные о целостности системы, то есть о функционировании каждого спутника в данный момент. Информацию о целостности системы включают в навигационные сигналы для передачи пользователям. 
  • Две антенны S-диапазона являются частью подсистемы телеметрии, слежения и управления. Они передают данные о служебных операциях полезной нагрузки и космического аппарата на наземные центры управления и в свою очередь принимают команды для работы с КА и ПН. Антенны S-диапазона также принимают, обрабатывают и передают сигналы дальнометрии, которые измеряют высоту спутника с точностью до нескольких метров. 
  • Инфракрасные датчики и точные солнечные датчики удерживают спутник постоянно нацеленным на Землю. Это достигается за счет определения контраста между холодным открытым космосом и теплой земной атмосферой инфракрасными датчиками. Солнечные датчики представляют собой детекторы видимого излучения и измеряют углы между основанием и падающим солнечным светом. 
  • Лазерный отражатель измеряет высоту орбиты спутника с точностью до нескольких сантиметров, отражая лазерный луч, исходящий с наземной станции. Лазерный отражатель используется только один раз в год, поскольку сигналы дальнометрии, получаемые с антенны S-диапазона, достаточно точны. 
  • Космические излучатели представляют собой теплообменники, которые выделяют избыточное тепло, вырабатываемое блоками внутри космического аппарата, в открытый космос и таким образом способствуют нормальному функционированию этих блоков. 

Полезная нагрузка 

  • Пассивные мазерные часы – основные часы на борту космического аппарата. Они представляют собой атомные часы, основанные на сверхстабильном переходе в атоме водорода частотой 1,4 ГГц и предназначенные для измерения времени с точностью до 0,45 нс за 12 часов. 
  • Рубидиевые часы используются в случае сбоя в работе мазерных часов. Погрешность таких часов – 1,8 нс за 12 часов. 
  • Аппарат оснащен четырьмя часами, по две пары каждого типа. Одновременно работают только двое часов – по одной паре из каждых двух. В нормальных условиях мазерные часы производят относительную частоту, из которой генерируется навигационный сигнал. 
  • Блок управления часами является связующим звеном между двумя парами часов и блоком навигационных сигналов (NSU). Он передает сигнал с активных мазерных часов на NSU и следит за синхронизацией частот мазерных и запасных часов. 
  • Блоки навигационных сигналов, частот и преобразований управляют формированием сигналов на основании данных блока управления часами, сигналов «Земля-спутник» и информации о целостности системе с антенны С-диапазона. Навигационные сигналы преобразуются в L-диапазон для передачи пользователям. 
  • Блок удаленного (дистанционного) терминала является посредником между всеми блоками полезной нагрузки и бортовым компьютером. 


Служебный модуль 

  • SADM – приводной механизм, соединяющий солнечные батареи со спутником и медленно вращающий их таким образом, что батареи были постоянно расположены перпендикулярно солнечным лучам. 
  • Гироскопы измеряют вращение спутника. Маховики контролируют вращение аппарата. Когда они вращаются, вращается и спутник. Он совершает два вращения за виток, для того чтобы солнечные батареи были параллельны солнечным лучам. Магнитный ограничитель корректирует скорость вращения маховиков за счет добавления крутящего момента в обратном направлении. 
  • Энергетический блок регулирует поток энергии, поступающей с солнечных батарей, и распределяет ее между всеми подсистемами аппарата и полезной нагрузкой. 
  • Бортовой компьютер управляет всеми аспектами функционирования спутника и полезной нагрузки. 
     

Дополнительные наименования

#НаименованияПоиск в новостяхПоиск в документах
1Galileo IOV-2НайтиНайти
2DavidНайтиНайти
338857НайтиНайти

Дополнительная классификация

#Наименования
1Страна оператор(владелец) - Европа
2Тип оператора(владельца) - коммерческий
3Тип орбиты - ГПО
4Страна производитель - Германия
5Страна производитель - Великобритания
6Страна производитель - Италия

Технические характеристики

#ХарактеристикаЗначение
1Масса, кг700
2Максимальная мощность, Вт1600
3Размах панелей солнечных батарей, метра13
4Размеры платформы, метра2,7 x 1,1 x 1,2
5Навигационные сигналы10 сигналов, передаваемых в диапазоне 1200–1600 МГц

Характеристики орбиты

#ХарактеристикаЗначение
1Наклонение, град55.1
2Апогей, км23238.9
3Перигей, км23219.8
4Период, минут844.7
5Длинный диаметр эллипса, км29600

Пусковые характеристики

#ХарактеристикаЗначение
1Код NSSDC2012-055A

Информация об удачном запуске

#ХарактеристикаЗначение
1Дата пуска2012-10-12 at 18:15:00 UTC
2Полезная нагрузка 1xGalileo FM3
3Полезная нагрузка 1xGalileo FM4
4Ракета-носитель 1xСоюз-2.1б с РБ «Фрегат»

Найдено 62 документов по запросу «Galileo FM3». [Перейти к поиску]


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... widelane integer ambiguity resolution with Galileo in a static short-baseline relative... positioning with Galileo 3.1 The European Global Navigation Satellite System Galileo . . 3.2 Galileo signals . . . . . . . . . . . . . . . . . . . . . . . . 3.3 Static.... With currently 4 Galileo satellites available, the estimation of the Galileo system capability.... GPS and Galileo measurements for precise positioning with Galileo were collected using... absolute and relative positioning with Galileo. The positioning algorithms applied to...]. 3. Precise positioning with Galileo 10 3. Precise positioning with Galileo This chapter focuses on the evaluation of the Galileo system... GPS and Galileo and observe an improved performance of Galileo even for... and Galileo is presented. 3.1 The European Global Navigation Satellite System Galileo Once fully operational, Galileo Walker constellation will... period of the Galileo satellite is 14 h 7 min. Galileo is independent but... satellites. Although similar to GPS, Galileo offers a few technical innovations not... Galileo system in [14]. The deployed satellite constellation includes four satellites: Galileo PFM (PRN 11), Galileo FM2 (PRN 12), Galileo FM3 (PRN 19) and Galileo FM4... receivers Signals Table 3.1: Innovations of Galileo [2] (IOV) phase, which consists of...]. 3. Precise positioning with Galileo 12 3.2 Galileo signals Each Galileo satellite transmits three independent... planned to be provided by Galileo. Galileo carrier signal characteristics are presented...(5) (CS) Table 3.2: Galileo carrier signals [1] A major difference of Galileo signals to the... of performance. 3. Precise positioning with Galileo 13 3.3 Static short-baseline test... following procedure: 3. Precise positioning with Galileo 14 1. Calculation of ionosphere-free... is performed. 3. Precise positioning with Galileo 16 The unconstrained least-squares...⊥ ¯ PH Ψ 2 −1 ΣΨ ¯N ˆ − N) + A( 2 −1 ΣΨ (3.14) 3. Precise positioning with Galileo 17 The first term of.... This result demonstrates that the Galileo signals design represent clear advantage... Galileo Figure 3.3: Double-difference E1 Galileo code measurements Figure 3.4: Double-difference E5 Galileo code measurements 18 3. Precise positioning with Galileo 19 The... LAMBDA search 3. Precise positioning with Galileo 20 Figure 3.6: Phase residuals of... following procedure: 3. Precise positioning with Galileo 21 Figure 3.7: Mobile long-baseline... 3. Precise positioning with Galileo 23 Figure 3.10: Galileo E1-E5 double-difference... code noise of Galileo signals. The use of Galileo E1-E5 signals... combination is performed using the Galileo measurements according to the following... amplification with 3. Precise positioning with Galileo 24 wavelength of λ = 3.092 m is... phase measurements. 3. Precise positioning with Galileo Figure 3.11: Residuals of integer... combination 25 3. Precise positioning with Galileo 26 3.4.2 Precise Point Positioning The... δ tˆ2,GPS for GPS and δ tˆ2,Galileo for Galileo, as well as float am... δ tˇ2,GPS for GPS and δ tˇ2,Galileo for Galileo using unambiguous ionosphere free phase..., while Galileo residuals are in the order of ±1 cm. Galileo E1 and... error compensation. 3. Precise positioning with Galileo Figure 3.13: GPS fixed phase... 3. Precise positioning with Galileo 28 Figure 3.15: Galileo fixed phase residuals with... gives: K ˆ (s) − ∆N (s) ∆N 2 Σ −1 ˆ N ˆ l|1,...,l−1 (s) ∆N l (s) − ∆N = l=1 2 2 /σ∆ ˆ l|1,...,l−1 N (3.26) 3. Precise positioning with Galileo 30 Figure 3.16: Probability of... )∆N (si ) 2 −1 ΣΨ (3.30) 3. Precise positioning with Galileo 31 As a consequence, the reliability.../s is achievable. 3. Precise positioning with Galileo Figure 3.17: Probability of a wrong... 3.18: Galileo IF ambiguities and biases 32 3. Precise positioning with Galileo Figure... 100 for Galileo. Moreover, the higher stability of the Galileo float ambiguity...-difference E1 Galileo code measurements . . . . . . . . . . . . . . . . . Double-difference E5 Galileo code measurements . . . . . . . . . . . . . . . . . Error...-L2 double-difference widelane ambiguities . . . . . . . . . . . . . . . . Galileo E1-E5 double-difference widelane... averaged over last 200 epochs . . . . Galileo fixed phase residuals with ambiguities... for two types of search . . . . . . . . . . Galileo IF ambiguities and biases . . . . . . . . . . . . . . . . . . . . . . . . . . Maximum... List of Tables 3.1 3.2 Innovations of Galileo [2] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Galileo carrier signals [1] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Bibliography 72 Bibliography [1] European Union, European GNSS (Galileo... Point Positioning with GPS and Galileo.” Technische Universität München, 2013. [6] P. Heroux..., E. S. J. Hahn, G. L. R. F. Gonzalez, R. S. P. Giordano, and A. H. G. Galluzzo, “Galileo on its own first position...



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...-17M GPS BIIR-18M Glonass-K 1 Galileo-FM3 Galileo-FM4 GEOLUTs * For use in...



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...-17M GPS BIIR-18M Glonass-K 1 Galileo-FM3 Galileo-FM4 * GEOLUTs Status of Payloads...



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... ступень ESC-A РБ "Фрегат" с адаптером Galileo Конструкция носителя SYLDA Криогенная верхняя... Skynet 5D Star One C3 Galileo-FM4 Galileo-FM3 GSAT 10 Astra 2F...



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... the 2six satellites, designated as FM3, was not able to maneuver... 4continuous thrust firing of the FM3. Therefore, FM3 was maintained at an... five FS-3/C satellites (all except FM3) reached their final mission orbit... power shortage is still 24undetermined. FM3 encountered the a solar array drive... propellant thrust firing of the FM3. The 26other five FS-3/C satellites... 2007 (Fong et al., 2008b). FM3 for the continuous orbit raising... and TBB, on FM2 and FM3, as shown in Table 1, have... the power shortage issues. Furthermore, FM3 has been in a severe 31abnormal... lost communication in June 2009. FM3 14encountered malfunctions of the solar... it reached a 711 km orbit. FM3 has been kept at that... GOX payloadsinstruments (onboard FM2 and FM3) are being operated based on... the 10most. Four spacecraft (FM1, FM3, FM5, and FM6) have exihibited... is 2observed that the FM2 & FM3 power shortages are the main... predefined mission orbits (except the FM3 whose onboard propulsion function 2was... orbit altitude). As mentioned 3previously, FM3 stayed in a lower orbit altitude... the ability to track GPS, Galileo 29and GLONASS GNSS systems, which... planned 30GLONASS, and 30 planned GALILEO satellites. The TriG mission payload... L1/L2/L5 signals, the GALILEO E1/E5/E6 signals, 2and... processing software including GNSS (GPS, Galileo, and 10Glonass) capability, and more... Operating Off (Note 1) Off (Note 1) FM3 Normal @711 km (Note 3) SADA... high battery state-of-charge. 4 3: FM3 was kept at 711 km... to stuck solar array drive. 5 4: FM3 has been in an abnormal... Loss of Communication -> Auto Recovery FM3 Loss of Communication -> Auto Recovery... in Orbit. Atmosphere FM1 FM2 FM3 FM4 FM5 FM6 Total 1,397...,335 2,116,936 FM1 FM2 FM3 FM4 FM5 FM6 Total 1,293... Normal Normal Normal 200/320 FM3 60% -> 36% Low SNR Normal... FM2 -0.031 -0.159 -0.236 -0.036 ~1 FM3 -0.094 -0.080 0.769 0.127 ~0.45...-261), FM5 (2007-302), and FM3 (2008245). Only FM2 & FM4 RF1... 2006/4/15 -100 2007/4/16 FM3 100 100 80 80 60... 10.00 0.00 7 8 FM1 FM2 FM3 FM4 FM5 FM6 Figure 3. GOX... 1 2 Figure 5. FS-7/C-2 Mission Trades. 3 1 37 1 GALILEO GLONASS High-inc Low-inc... Users Taiwan DPC Researchers Researchers GALILEO GLONASS High-inc Low-inc...



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European GNSS (Galileo) Open Service Ionospheric Correction Algorithm for Galileo Single Frequency... disclaimers p.i Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, March... the Galileo satellite navigation system that can be used to determine Galileo... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February...-step procedure ..................................................................................................................... 5 2.3 Inputs and Outputs .............................................................................................................................. 6 2.3.1 Galileo navigation message relevant to single... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February...) ........................... 51 Figure 6. Performance of the Galileo Single Frequency Ionospheric correction ......................... 52... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... navigation message for Galileo single-frequency users. The term “Galileo” is used... verification of independent implementations. 1.2 Background Galileo is the European global navigation... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... ionospheric propagation delay using the Galileo single-frequency ionospheric correction algorithm... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... Galileo OS SIS ICD [1], the following parameters are broadcast in the Galileo... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... for Galileo Single Frequency Users, Issue 1.1, February 2015 15 F2, Fm3, AzR... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... p. ii Ionospheric Correction Algorithm for Galileo Single Frequency Users, Issue 1.1, February... ionospheric model previously described within Galileo user receivers. 3.1 Zero-valued coefficients... conditions, a Galileo user receiver decoding the Galileo navigation message from N Galileo satellites simultaneously... Documents 4.1 Applicable Documents [1] 4.2 European GNSS (Galileo) Open Service Signal In Space... Space Interface Control Document SFIono Galileo Single Frequency Ionospheric Algorithm s.f.u. Solar... ionospheric coefficients broadcast by Galileo IOV satellites. The Galileo FOC UERE budget...



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... (Galileo) Open Service NAVIGATION SOLUTIONS POWERED BY E U R O P E Ionospheric Correction Algorithm for Galileo... European GNSS (Galileo) Open Service – Ionospheric Correction Algorithm for Galileo Single Frequency... the Galileo satellite navigation system, which can be used to determine Galileo... adaptation of NeQuick for the Galileo single-frequency ionospheric correction algorithm... algorithmic description of NeQuick for Galileo contained in this document has.............................................................................................................................................18 2.5.6 Electron density computation...................................................18 2.3.1 Galileo navigation message relevant to single...)......................................................................................43 Figure 6. Performance of the Galileo Single Frequency Ionospheric correction.......................................................................... 44... error [m L1] after correction with Galileo NeQuick G and GPS ICA from... bound of 20 TECU) of Galileo NeQuick G and GPS ICA correction... Scope This document complements the Galileo OS SIS ICD [Annex A[1]] by... navigation message for Galileo single-frequency users. The term “Galileo” is used... model as adapted for the Galileo correction algorithm, and data for... verification of independent implementations. 1.2 Background Galileo is the European global navigation... positioning service under civilian control. Galileo, and in general current GNSS... by the SBAS MOPS [Annex A [2]]. Galileo has been designed to provide... ionospheric propagation delay using the Galileo single-frequency ionospheric correction algorithm... been adapted for real-time Galileo single-frequency ionospheric corrections (for... link. As specified in the Galileo OS SIS ICD [Annex A [1]], the... implement the ionospheric algorithm for Galileo single frequency receivers the following... to ionospheric delay using Eq. 1. 2.3.1 Galileo navigation message relevant to single... algorithm As described in the Galileo OS SIS ICD [Annex A [1]], the... parameters are broadcast in the Galileo navigation message (the parameters are... have been reserved in the Galileo OS SIS ICD [Annex A [1]] to... model has been adapted for Galileo single-frequency ionospheric corrections in... definition of the F2 and Fm3 arrays). The CCIR file naming... Input: Month mth Outputs F2, Fm3 Select the file name to.... 42  coefficients for M(3000)F2 Fm3: fm3i,j,k i=1,2; 2.5.5.3.2. Interpolate ITU-R coefficients for... for M(3000)F2 Inputs: F2, Fm3, AzR Outputs: AF2, Am3 I o n o s p h e r i c C o r r e c t i o n A l g o r i t h m f o r Ga... combination of the elements of Fm3: 𝑎𝑎𝑎𝑎3𝑗𝑗,𝑘𝑘 = 𝑓𝑓𝑓𝑓31,𝑗𝑗,𝑘𝑘 (1 − 𝐴𝐴𝐴𝐴𝑅𝑅 𝐴𝐴𝐴𝐴𝑅𝑅 ) + 𝑓𝑓𝑓𝑓32,𝑗𝑗,𝑘𝑘 100 100 j=1,…,49...-time usage and broadcast in Galileo navigation message through three parameters... ionospheric model previously described within Galileo user receivers. 3.1 Zero-valued coefficients... conditions, a Galileo user receiver decoding the Galileo navigation message from N Galileo satellites simultaneously... l i l e o Si n g l e F r e q u e n c y U s e r s , I s s u e 1 . 2 , S e p t e m b e r 2 0 1 6 A.1. Applicable Documents [1] European GNSS (Galileo) Open Service Signal In Space... of NeQuick Ionospheric Model for Galileo Single-Frequency Users, GPS World... FOC Full Operational Capability GIOVE Galileo In Orbit Validation Element GNSS... Space Interface Control Document SFIono Galileo Single Frequency Ionospheric Algorithm sfu... model for a daily use in Galileo, instead of the monthly mean... to the users in the Galileo navigation broadcast message. 38 Height... the performance of the NeQuick Galileo Single Frequency algorithm, referred as... algorithm with broadcast parameters from Galileo satellites have been performed during... cycle 24 [Annex A [11]]. The Galileo broadcast data used for this... coefficients broadcast by the four Galileo IOV satellites. It is important... satellites. Figure 6. Performance of the Galileo Single Frequency Ionospheric correction when... error [mL1] after correction with Galileo NeQuick G (red) and GPS ICA... RMS residual error both for Galileo NeQuick G and GPS ICA from.... The residual error of the Galileo correction model is already at... for each station for the Galileo NeQuick G model with respect to... ionospheric coefficients broadcast by Galileo IOV satellites. The Galileo FOC UERE budget... bound of 20 TECU) of Galileo NeQuick G (left) and GPS ICA... are valid for the current Galileo Single Frequency Ionospheric Model NeQuick... the NeQuick version used for Galileo single frequency ionospheric correction: NeQuick...



Дата загрузки: 2017-02-06
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0.07/5
...:19 Page1 A LAUNCH FOR EUROPE’S GALILEO CONSTELLATION Arianespace's third launch of... two new satellites in Europe's Galileo satellite navigation system. With Soyuz... launch contracts. The two Galileo satellites, IOV-2 FM3 and FM4 (In Orbit... satellites Giove-A and Giove-B, enabling Galileo to secure its allocated frequencies... first two satellites in the Galileo constellation. Pour plus d’informations rendez... place two satellites in the Galileo constellation into circular orbit at... 1 400 kg for the IOV-2 FM3 and FM4 satellites, which will..., the satellite dispenser and two Galileo IOV-2 FM3 and FM4 satellites. The... free the operational zones for Galileo satellites and it will be.... Soyuz payload Configurtion The Galileo IOV-2 FM3 and FM4 satellites were built...:39:57 Separation of IOV-2 FM3 and FM4 +03:44:57...:20 Page4 PROFIL OF THE GALILEO MISSION Pour plus d’informations rendez.../12 17:20 Page7 THE GALILEO SATELLITES IOV-1 PFM AND FM2...



Дата загрузки: 2016-12-25
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0.09/5
... power shortage is still undetermined. FM3 encountered a solar array drive mechanism... continuous thrust firing of the FM3. The other five FS-3/C satellites... 2007 (Fong et al., 2008b). FM3 tracked the solar power at... and TBB, on FM2 and FM3, as shown Atmos. Meas. Tech... Operating Off (Note 1) Off (Note 1) FM3 Normal @711 km (Note 3) SADA... high battery state-of-charge. 3: FM3 was kept at 711 km... to stuck solar array drive. 4: FM3 has been in an abnormal... the power shortage issues. Furthermore, FM3 has been in a severe abnormal... lost communication in June 2009. FM3 encountered malfunctions of the solar... it reached a 711 km orbit. FM3 has been kept at that... Loss of Communication -> Auto Recovery FM3 Loss of Communication -> Auto Recovery... Atmosphere Profiles Ionosphere FM1 FM2 FM3 FM4 FM5 FM6 Total 1397....55 2 116 936 FM1 FM2 FM3 FM4 FM5 FM6 Total 2 Operation... GOX instruments (onboard FM2 and FM3) are being operated based on... occultation processing. Four spacecraft (FM1, FM3, FM5, and FM6) have exihibited... 10.00 0.00 FM1 FM2 FM3 FM4 FM5 FM6 3. GOXPayload Payload... observed that the FM2 and FM3 Atmos. Meas. Tech., 4, 1115–1132... Normal Normal Normal 200/320 FM3 60 % -> 36 % Low SNR Normal.../10 Battery charging efficiency decreased FM3 −0.094 −0.080 0.769 0.127 ∼ 0.45... predefined mission orbits (except the FM3 whose onboard propulsion function was... the ability to track GPS, Galileo and GLONASS GNSS systems, which... planned GLONASS, and 30 planned GALILEO satellites. The TriG mission payload... L1/L2/L5 signals, the GALILEO E1/E5/E6 signals, and...-261), FM5 (2007-302), and FM3 (2008-245). Only FM2 & FM4... processing software including GNSS (GPS, Galileo, and Glonass) capability, and more...