Tag Archives: IHI

MUOS-5 after slight orbit change with issue with propulsion still unsolved

Well known problems with propulsion of United States Navy communication satellite MUOS-5 are still not explained even after performing visual inspection by one of the GSSAP satellites. Since first problems with MUOS-5 were reported to public in July 2016, U.S. Navy has been trying to solve mysterious issue with propulsion. To remind: MUOS-5, representing next generation…
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MUOS-5 problem still not solved

Communication satellite launched under contract signed between U.S. Navy and United Launch Alliance still suffers from the problems with propulsion, which makes reaching correct orbit over Indian Ocean under the question. Satellite was launched on atop of Atlas V (551 configuration) from Cape Canaveral SLC-41 on June 24, 2016. It was last from series of five next generation communication satellites, which were designed…
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MUOS-5 failed to reach designated orbit

Last from series of five next generation communication satellites for U.S. Navy, MUOS-5, failed to reach its designated orbit. Its present position is far for about 20000 km from place where it should start its operational life. MUOS-5 was launched on June 24, 2016 on atop of Atlas V (551 configuration) rocket from Cape Canaveral SLC-41.…
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MUOS-5 and Atlas V within hours !

Today we are waiting for MUOS-5 mission. Atlas V combined with Centaur upper stage will deliver satellite created for US Navy starting from Cape Canaveral SLC-41 at 14:30 GMT. MUOS-5 is last new generation communication satellite created by Lockheed Martin, Boeing and General Dynamics for US. Constellation of five satellites (4 operating and one backup) will…
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JAXA still is targeting for fiscal year 2020 with new H3 rocket

JAXA still continuing investigation on failure of Hitomi X-ray satellite mission, but times goes on and Agency still works on multiple different projects. Sometimes time and hard work is best remedy for wounded proud. H-II rocket is proven launch vehicle but it was clear that intensification of Japanese participation in space exploration (engagement in International Space…
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HTV-6 on orbit after launch from Tanegashima Space Center

Japanese space agency JAXA conducted successful launch of their H-IIB rocket with HTV robotic cargo spacecraft. Mission destination is International Space Station and nadir docking port of Harmony module. HTV-6 "Kounotori" mission was planned as first after 3 years of break and sixth mission of Japanese cargo vehicle in general. Its mission was important mainly…
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MUOS-5 after reaching designated orbit entered yesterday in test phase

U.S. Navy communication satellite MUOS-5 finally reached its designated orbit after prolonged maneuver. Extended time necessary for reaching orbital position was caused by previous problems with main propulsion of MUOS-5. Engineers from Lockheed Martin (main contractor for MUOS-5) and U.S. Navy decided to use instead main IHI BT-4, additional thrusters used for attitude control system.…
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