NEC space activities for telecommunication satellite system - APRSAF

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2.NEC activities of communication satellites (heritages)COMMUNICATONYURI(BS)YURI-2a,2b(BS-2a,2b)FUJI-1,2,3(JAS-1,2,3)YURI-3a,3b(BS-3a,3b)KAKEHASHI(COMETS)KIRARI(OICETS)KIZUNA(WINDS)ENGINEERING/TESTOHSUMIJapanese 1st Satellitelaunched in 1970TANSEI-IV(MS-T4)KIKU-4(ETS-III)EARTH OBSERVATIONSAKIGAKE(MS-T5)KIKU-6(ETS-VI)KIKU-7(ETS-VII)TSUBASA(MDS-I)HIMAWARI(GMS)HIMAWARI-2(GMS-2)HIMAWARI-3(GMS-3)MOMO-1(MOS-1)HIMAWARI-4(GMS-4)MOMO-1b(MOS-1b)HIMAWARI-5(GMS-5)DAICHI(ALOS)SCIENCEYOHKOH(SOLAR-A)GEOTAILASCA(ASTRO-D)HALKA(MUSES-B)NOZOMI(PLANET-B)HAYABUSA(MUSES-C)SUZAKU(ASTRO-EII)AKARI(ASTRO-F)KAGUYA(SELENE)This document© NEC Corporationcontains proprietary2010information, and except with written permission of NEC Corporation ,such information shall not be published ordisclosed to others, or used for any purpose and the document shall not be duplicated in whole or in parts.Page 12 © NEC Corporation 2010
2.NEC activities of communication satellites (heritages)Five development elements2. Ka-band Multi Port Amplifier (MPA)5. High efficiency solar paddle4. Base-band Switching SystemLaunch Date Feb. 23, 2008OrbitMassElectrical PowerAttitude ControlSystem OutlineGEO (143E)1. Ka-band Multi-beam Antenna(MBA)3. Ka-band Active Phased Array Antenna (APAA)2400 kg (DRY)8 kW @EOL4 kW(for Mission payload)3 axis Stabilization±0.05deg.(R/P)±0.15deg.(Y)WINDS (KIZUNA)Wideband inter-Networking EngineeringTest and Demonstration satelliteLaunch : Feb. 23, 2008 High Speed Space communication. Max Receiving : 155 Mbps Max Transmitting :- 6 Mbps for house-holds with 45-cmaperture antennas- 1.2 Gbps communication for offices with5-m antennas .Data Relay Bent Pipe Link Re-Modulating Link (ATM)Frequency U/L:27.5~28.6GHz D/L:17.7~18.8GHzAntennaBeamsData Rate(c) JAXASatellite EIRPSatellite G/TSpecification Communication LinksFixed Beams (MBA) for Japan, prospective cities in Asia regionScanning Beam (APAA) for the other areaMax 1.2 Gbps,(622Mbps×2)69.6 dBW (MBA, 24.6dBW at MPA output)54.6 dBW (APAA, at edge of FOV )> 17.9 dB/K (MBA, domestic antenna)> 7.1 dB/K (APAA, at edge of FOV )U/L: 1.5, 6, 24, 51, 155 MbpsD/L: 155 MbpsPage 13This document contains proprietary information, and except with written permission of NEC Corporation ,such information shall not be published or© NEC Corporation 2010disclosed to others, or used for any purpose and the document shall not be duplicated in whole or in parts.
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