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Global Positioning System Satellites

In today's high-tech world of satellite imagery and global travel, geographers would seemingly have few secrets left to unravel. But at least one question has been nagging at explorers and map makers alike: the precise source of the Amazon, the world's largest river, with six times the flow of the Nile. Since at least 1971, explorers have been bickering over which of two small streams in the Peruvian Andes actually represents the headwaters of the mighty South American river.
August 21, 1990
Rockwell International Corp. in Seal Beach won a $25.9-million Air Force contract for integration of global positioning system satellites on Delta II launch vehicles.
September 13, 1996 | Reuters
A McDonnell Douglas Delta 2 rocket thundered into orbit Thursday carrying a $55-million Air Force navigation satellite. The satellite was placed into a 12,000-mile circular orbit about 25 minutes after it left Cape Canaveral Air Force Station. It is the second of a new generation of Global Positioning System satellites and will replace an aging satellite in orbit.
August 27, 2004 | From Bloomberg News
Boeing Co. won a $54-million contract to launch four navigation satellites for the Air Force in the second exception to a ban imposed on the company last year. The decision to use Boeing's Delta II rockets for the launch was made because the global positioning system satellites were a "compelling national interest," said Maj. Karen Finn, spokeswoman for the Air Force.
July 25, 1996
A team of Rockwell International Corp. researchers was chosen to oversee a $3-million contract to develop ways to use a system of location-detecting satellites in battle, the company announced Wednesday. The Air Force Space and Missile Systems Center, Los Angeles, selected Rockwell for the 13-month NAVWAR project, he said. Work will begin in the next month and will involve staff from Rockwell's Systems Development Center in Seal Beach, the company said.
December 11, 1989 | From Times staff and wire reports
The launching of an Air Force Delta 2 rocket carrying a $65-million military navigation satellite was postponed at least 24 hours because of trouble with a second-stage fuel pressurization system, officials at the Kennedy Space Center in Florida said. It was the nation's second major launching delay in three days. The maiden flight of a commercial Titan 3 rocket was rained out Friday. Officials said it was not known how long it would take to make the Delta repairs.
January 18, 1997 | From Associated Press
An unmanned rocket carrying a $40-million navigation satellite for the Air Force blew up 13 seconds after liftoff Friday in a spectacular cascade of flaming debris. Nearly 200 people had gathered at two viewing sites, one of them less than a mile from the Cape Canaveral Air Force Station launch site. In addition, 73 launch team members were in the blockhouse next to the pad.
August 9, 1986 | RALPH VARTABEDIAN, Times Staff Writer
The Air Force, acting with unusual speed to respond to the space launch crisis in the wake of the loss of the space shuttle Challenger, on Friday awarded four design contracts worth about $5 million each to aerospace firms proposing new launch vehicles. Hughes Aircraft, McDonnell Douglas Astronautics and General Dynamics Convair, all Southern California firms, received contracts, as did Martin Marietta's Denver Aerospace.
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