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Atlas 3 rocket gives Asian satellite ride to orbit BY JUSTIN RAY SPACEFLIGHT NOW Posted: April 11, 2003
Powered by the Russian RD-180 main engine, the booster blasted off at 8:47 p.m. EDT from pad 36B. Just over a half-hour later, the "stretched" Centaur upper stage fitted with a single RL-10 engine for this flight deployed the AsiaSat 4 satellite into geosynchronous transfer orbit. "We are extremely pleased that AsiaSat 4 has successfully completed this stage of the launch. We thank our partners, Boeing Satellite Systems and International Launch Services, for their excellent work and effort in making today's launch a success," said Peter Jackson, chief executive officer of Hong Kong-based Asia Satellite Telecommunications Company Limited. This was the 64th straight success for the Atlas family of rockets dating back to 1993. It was the third flight of Atlas 3 since 2000. The mission was managed by International Launch Services -- the joint venture between Lockheed Martin and Russian firms Khrunichev and RSC Engeria to market the Atlas and Proton rocket fleets. This was ILS' first launch in 2003. Officials expect about 10 launches this year, split evenly between the two booster families. AsiaSat 4 --built by Boeing using the 601HP model design -- will be operated in geostationary orbit at 122 degrees East longitude above the equator to relay television program, business, telephony and broadband services.
As the most powerful member of AsiaSat's satellite fleet, the AsiaSat 4 carries 28 C-band and 20 Ku-band transponders with a 15-year design life. The pan-Asian C-band footprint will cover more than 40 countries and regions spanning from Auckland to Tehran. Its Ku-band coverage will consist of two high-power focused beams for East Asia and Australasia, as well as direct-to-home services in Hong Kong and the adjacent South China region. The AsiaSat 4 spacecraft, the Atlas 3B rocket and insurance was valued at $240 million, AsiaSat said. The launch of AsiaSat 4 was delayed from last spring to perform additional testing on the craft. "Over the last year we have spent a lot of extra time on the spacecraft in El Segundo to make sure that every piece of equipment had the highest quality. So it we went through over a year of integration tests, which is uncommon for the 601HP but it was essential that we make that everything was right for this mission," Dave Ryan, president of Boeing Satellite Systems, told Spaceflight Now. "Toward the end of that, we particularly concentrated on the ion propulsion system to make sure that all of the design improvements that we were putting into it over the last couple of years were incorporated. So now we are confident that the system will last not only 15 years but it actually has a design capability for 19 years." Next up for Atlas will be the launch of a Greek communications satellite on May 12 aboard the second Atlas 5 rocket. That is expected to be followed by the mid-June Atlas 2AS mission from Vandenberg Air Force Base in California carrying a classified cargo for the National Reconnaissance Office. Another Atlas 5 is planned in mid-July with the Rainbow 1 direct broadcasting satellite.
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Flight data file Vehicle: Atlas 3B (AC-205) Payload: AsiaSat 4 Launch date: April 11, 2003 Launch window: 8:08 to 9:20 p.m. EDT (0008-0120 GMT on 12th) Launch site: Complex 36B, Cape Canaveral, Florida Satellite broadcast: Galaxy 3, Transponder 1, C-band Pre-launch briefing Launch timeline - Chart with times and descriptions of events to occur during the launch. Weather forecast - The latest forecast for launch day conditions. Launch hazard area - The restricted area during liftoff. Ground track - See the trajectory the rocket will follow during its flight. Orbit insertion - Illustration of AsiaSat 4's trek to geostationary orbit. AsiaSat 4 - Description of communications satellite cargo. Atlas 3B vehicle data - Description of rocket being used in this launch. The RD-180 - Facts and figures about the Russian-built engine to power Atlas 3 and 5. Atlas directory - See our coverage of previous Atlas rocket flights. Mission Report Space Shuttle Flights 1-5: The NASA Mission Reports covers the shuttle through its test flight stage and on to the first operational flight. Includes CD-ROM.Soviet Space For the first time ever available in the West. Rocket & Space Corporation Energia: a complete pictorial history of the Soviet/Russian Space Program from 1946 to the present day all in full color. Available from our store.U.S. - U.K. - E.U. - Worldwide Viking patch This embroidered mission patch celebrates NASA's Viking Project which reached the Red Planet in 1976.U.S. - U.K. - E.U. - Worldwide Apollo 7 DVD For 11 days the crew of Apollo 7 fought colds while they put the Apollo spacecraft through a workout, establishing confidence in the machine what would lead directly to the bold decision to send Apollo 8 to the moon just 2 months later.U.S. - U.K. - E.U. - Worldwide Gemini 12 Gemini 12: The NASA Mission Reports covers the voyage of James Lovell and Buzz Aldrin that capped the Gemini program's efforts to prove the technologies and techniques that would be needed for the Apollo Moon landings. Includes CD-ROM.U.S. - U.K. - E.U. - Worldwide Columbia Report The official accident investigation report into the loss of the space shuttle Columbia and its crew of seven. Includes CD-ROM.U.S. STS-134 Patch Free shipping to U.S. addresses! The final planned flight of space shuttle Endeavour is symbolized in the official embroidered crew patch for STS-134. Available in our store!Final Shuttle Mission Patch Free shipping to U.S. addresses! The crew emblem for the final space shuttle mission is now available in our store. Get this piece of history!Apollo Collage This beautiful one piece set features the Apollo program emblem surrounded by the individual mission logos.STS-133 Patch Free shipping to U.S. addresses! The final planned flight of space shuttle Discovery is symbolized in the official embroidered crew patch for STS-133. Available in our store!Anniversary Shuttle Patch Free shipping to U.S. addresses! This embroidered patch commemorates the 30th anniversary of the Space Shuttle Program. The design features the space shuttle Columbia's historic maiden flight of April 12, 1981.Mercury anniversary Free shipping to U.S. addresses! ![]() Celebrate the 50th anniversary of Alan Shephard's historic Mercury mission with this collectors' item, the official commemorative embroidered patch. Fallen Heroes Patch Collection The official patches from Apollo 1, the shuttle Challenger and Columbia crews are available in the store.Get e-mail updates Sign up for our NewsAlert service and have the latest news in astronomy and space e-mailed direct to your desktop (privacy note: your e-mail address will not be used for any other purpose). |
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