With the GTO launch capability of 5,500kg, CZ-3B/G2 is dedicated to launching a heavy GEO communications satellite. On May 14, 2007, the first flight of CZ-3B/G2 was performed successfully, accurately sending the NigcomSat-1 into pre-determined orbit. The CZ-3B/G2 (Enhanced Version) launch vehicle was developed from the CZ-3B with a lengthened first core stage and strap-on boosters, increasing the GTO capacity up to 5,500kg. The rocket is capable of launching a 11,200 kg satellite to a low Earth orbit or a 5,100 kg cargo to a geosynchronous transfer orbit. The CZ-3B features enlarged launch propellant tanks, improved computer systems, a larger 4.2 meter diameter payload fairing and the addition of four strap-on boosters in the core stage that provide additional help during the first phase of the launch.
To meet the demand of the international satellite launch market, especially for high power and heavy communications satellites, the development of Long March-3B (Chang Zheng-3B) launch vehicle was started in 1986 based on the fight proven technology of Long March launch vehicles.ĭeveloped from the Chang Zheng-3A, the Chang Zheng-3B was the most powerful launch vehicle on the Chinese space launch fleet, before the Long March 5 arrived on the scene. The pre-shipment review took place at the beginning of March 2020. The service and payload modules were mated together in July and in December the satellite was in the thermal vacuum test chamber. The critical design review took place in October 2018 and in January 2019 started the satellite assembly integration and testing. In January 2018 there was the equipment qualification status review and next May it was held the preliminary design review. It was to have a service lifetime in orbit of 15 years.Īfter signing the agreement in May 2017, CGWIC started the building of the satellite. It uses a 3-axis stabilization mode and its station-keeping precision is west/east ☐.05° and north/south ☐.05°. The platform can be equipped with C, Ku, Ka and L transponders. Solar Array Power is 10.5 kW (EOL) and payload power is 8 kW. Its dimensions were 2360mm×2100mm×3600mm, with a general liftoff mass of 5,200 kg. With increased power, strong payload capacity and extended service life, it consisted of a propulsion module, service modules and solar arrays. The Dongfanghong-4 (DFH-4) was the third generation communications satellite bus developed by China. The problem was subsequently corrected using the spacecraft’s onboard propulsion system, but reducing its expected lifetime. Launched on August 31, 2009, at 09:28UTC using the Long March-3B/E (Y8) from the LC2 Launch Complex of the Xichang Satellite Launch Center, a problem – also with the third stage of its launcher – left the satellite in an incorrect orbit. It carries 35 G/H band and 5 J band transponders. Palapa-D (35812 2009-046A) is operated by Indosat Ooredoo and was built by Thales Alenia Space, based on the Spacebus-4000B3 satellite bus.
The new satellite was to replace the old Palapa-D communications satellite. The satellite could have also been used for VSAT, broadcast, broadband, backbone, and backhaul services. The satellite can cover regions throughout the Asia Pacific and to Australia for C-band transponders and throughout Indonesia for HTS. Weighing 5,550 kilograms, Palapa-N1 had a capacity of 20×36 MHz C-band FSS transponders and 9.5 gigabit-per-second (Gbps) HTS. PSN, Indosat Ooredoo and PNS established a joint venture called PT Palapa Satelit Nusa Sejahtera (PSNS) in 2017 and on May 17th of that year contracted with China Great Wall Industry Corporation (CGWIC), a subsidiary of China Aerospace Science and Technology Corporation, to build the Palapa-N1 satellite Also named Nusantara Dua, the satellite will replace Palapa-D satellite at the 113° East position in geosynchronous orbit where it should be operational in June 2020 Reports from China noting an issue with the Long March’s third stage has resulted in the mission being classed as a failure. The satellite, based on the Chinese DFH-4 platform, was to be used by PT Pasifik Satelit Nusantara (PSN) in cooperation with telecommunication service provider PT Indosat Ooredoo and PT Pintar Nusantara Sejahtera (PNS), to provide broadband internet access and high-quality broadcasting services.
The satellite is understood to have already reentered and has thus been destroyed. The launch took place at 11:46 UTC from the LC2 pad at the Xichang Satellite Launch Center, but reportedly failed during third stage flight. A new communications satellite attempted to make its way into for Indonesia called Nusantara Dua via a China Great Wall Industry Corporation launch on Thursday using a Long March-3B/G2 (Chang Zheng-3B/G2) rocket.
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