Satellites (71 - 80 of 177 items)
Space Acquisitions: Improvements Needed in Space Systems Acquisitions and Keys to Achieving Them
GAO-06-626T: Published: Apr 6, 2006. Publicly Released: Apr 6, 2006.
DOD's space system acquisitions have experienced problems over the past several decades that have driven up costs by hundreds of millions, even billions of dollars, stretched schedules by years, and increased performance risks. GAO was asked to testify on its findings on space acquisition problems and steps needed to improve outcomes.DOD's space acquisition programs continue to face substantial co...
Polar-Orbiting Operational Environmental Satellites: Cost Increases Trigger Review and Place Program's Direction on Hold
GAO-06-573T: Published: Mar 30, 2006. Publicly Released: Mar 30, 2006.
Polar-orbiting environmental satellites provide data and imagery that are used by weather forecasters, climatologists, and the military to map and monitor changes in weather, climate, the oceans, and the environment. They are critical to long-term weather prediction, including advance forecasts of a hurricane's path and intensity. Our nation's current operational polar-orbiting environmental satel...
Space Acquisitions: DOD Needs a Departmentwide Strategy for Pursuing Low-Cost, Responsive Tactical Space Capabilities
GAO-06-449: Published: Mar 14, 2006. Publicly Released: Mar 14, 2006.
For more than two decades, the Department of Defense (DOD) has invested heavily in space assets to provide the warfighter with mission-critical information. Despite these investments, DOD commanders have reported shortfalls in space capabilities. To provide tactical capabilities to the warfighter sooner, DOD recently began developing TacSats--a series of small satellites intended to be built withi...
Polar-Orbiting Operational Environmental Satellites: Technical Problems, Cost Increases, and Schedule Delays Trigger Need for Difficult Trade-off Decisions
GAO-06-249T: Published: Nov 16, 2005. Publicly Released: Nov 16, 2005.
Polar-orbiting environmental satellites provide data and imagery that are used by weather forecasters, climatologists, and the military to map and monitor changes in weather, climate, the oceans, and the environment. Our nation's current operational polar-orbiting environmental satellite program is a complex infrastructure that includes two satellite systems, supporting ground stations, and four c...
Space Acquisitions: Stronger Development Practices and Investment Planning Needed to Address Continuing Problems
GAO-05-891T: Published: Jul 12, 2005. Publicly Released: Jul 12, 2005.
GAO was asked to testify on problems relating to the Department of Defense's (DOD) space system acquisitions. In doing so, we drew on our previous reports related to the causes of acquisition problems, underlying incentives and pressures, and potential solutions.Our work on the acquisition of space-based capabilities over the last several years has been conducted on two levels. First, we have revi...
NASA: More Knowledge Needed to Determine Best Alternatives to Provide Space Station Logistics Support
GAO-05-488: Published: May 18, 2005. Publicly Released: May 31, 2005.
The National Aeronautics and Space Administration's (NASA) space shuttle fleet has been key to International Space Station operations. Since the grounding of the fleet in February 2003, Russia has provided logistics support. However, due to the limited payload capacity of the Russian space vehicles, on-orbit assembly of the space station stopped. In May 2004 and in February 2005, NASA testified be...
Space Shuttle: Costs for Hubble Servicing Mission and Implementation of Safety Recommendations Not Yet Definitive
GAO-05-34: Published: Nov 19, 2004. Publicly Released: Dec 17, 2004.
Hubble's continued operation has been dependent on manned servicing missions using the National Aeronautics and Space Administration's (NASA) shuttle fleet. The fleet was grounded in early 2003 following the loss of the Space Shuttle Columbia, as NASA focused its efforts on responding to recommendations made by the Columbia Accident Investigation Board (CAIB). In January 2004, NASA announced its d...
Polar-Orbiting Environmental Satellites: Information on Program Cost and Schedule Changes
GAO-04-1054: Published: Sep 30, 2004. Publicly Released: Sep 30, 2004.
Our nation's current operational polar-orbiting environmental satellite program is a complex infrastructure that includes two satellite systems, supporting ground stations, and four central data processing centers. In the future, the National Polar-orbiting Operational Environmental Satellite System (NPOESS) is to combine the two current satellite systems into a single state-of-the-art environment...
Defense Space Activities: Continuation of Evolved Expendable Launch Vehicle Program's Progress to Date Subject to Some Uncertainty
GAO-04-778R: Published: Jun 24, 2004. Publicly Released: Jun 24, 2004.
The U.S. space policy states that access to and use of space is critical to preserving peace and protecting U.S. national security and also benefits the country's civil and commercial interests. Air Force guidance explains further that access to space requires the ability to launch critical space assets, when needed, by a mix of space launch systems from standard launch pads at major support facil...
Space Acquisitions: Committing Prematurely to the Transformational Satellite Program Elevates Risks for Poor Cost, Schedule, and Performance Outcomes
GAO-04-71R: Published: Dec 4, 2003. Publicly Released: Dec 4, 2003.
In a multibillion-dollar effort, the Department of Defense (DOD) plans to build a space-based communications system that leverages technologies never before used in space. Such a system would enable DOD to transform how information is collected on potential U.S. adversaries and how military forces are warned of hostile action. The backbone of this system will be the Transformational Satellite (TSA...