Satellites (81 - 90 of 177 items)
Polar-Orbiting Environmental Satellites: Project Risks Could Affect Weather Data Needed by Civilian and Military Users
GAO-03-987T: Published: Jul 15, 2003. Publicly Released: Jul 15, 2003.
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 ocean, and the environment. The current polar satellite program is a complex infrastructure that includes two satellite systems, supporting ground stations, and four central data processing centers. In the future...
Military Space Operations: Planning, Funding, and Acquisition Challenges Facing Efforts to Strengthen Space Control
GAO-02-738: Published: Sep 23, 2002. Publicly Released: Sep 23, 2002.
The United States is increasingly dependent on space for its security and well being. The Department of Defense's (DOD) space systems collect information on capabilities and intentions of potential adversaries. They enable military forces to be warned of a missile attack and to communicate and navigate while avoiding hostile action. DOD's efforts to strengthen space control are targeted at seeking...
Polar-Orbiting Environmental Satellites: Status, Plans, and Future Data Management Challenges
GAO-02-684T: Published: Jul 24, 2002. Publicly Released: Jul 24, 2002.
This testimony discusses the planned National Polar-Orbiting Operational Environmental Satellite System (NPOESS). Today's polar-orbiting environmental satellite program is a complex infrastructure encompassing two satellite systems, supporting ground stations, and four central data processing centers that provide general weather information and specialized environmental products to a variety of us...
Space Surveillance Network: Appropriate Controls Needed Over Data Access
GAO-02-402RNI: Published: Apr 22, 2002. Publicly Released: Apr 22, 2002.
Space surveillance involves the continuous detection, tracking, identification, cataloging, and monitoring of man-made objects orbiting the earth, including active and inactive satellites and space debris from spent rocket bodies and fragmentation. The U.S. Space Command maintains and operates the network and provides surveillance data to the National Aeronautics and Space Administration (NASA), w...
Space Station: Inadequate Planning and Design Led to Propulsion Module Project Failure
GAO-01-633: Published: Jun 20, 2001. Publicly Released: Jun 29, 2001.
This report discusses the National Aeronautics and Space Administration's (NASA) contract with Boeing Reusable Space Systems to build the now-canceled follow-on propulsion module for the International Space Station. GAO found that the initial propulsion module project did not meet performance, cost, and schedule goals largely because NASA proceeded with Boeing's proposal without following fundamen...
National Oceanic and Atmospheric Administration: National Weather Service Modernization and Weather Satellite Program
T-AIMD-00-86: Published: Mar 29, 2000. Publicly Released: Mar 29, 2000.
Pursuant to a congressional request, GAO discussed the status of the National Weather Service (NWS) systems modernization and the National Environmental Satellite, Data, and Information Service's Geostationary Operational Environmental Satellite (GOES) program.GAO noted that: (1) although NWS is nearing completion of its systems modernization effort, it still faces important challenges; (2) during...
Space Station: Status of Efforts to Determine Commercial Potential
NSIAD-99-153R: Published: Jun 30, 1999. Publicly Released: Jul 15, 1999.
Pursuant to a congressional request, GAO provided information on whether space-station-related commercial activities could generate revenue capable of reducing the station's annual cost of operations, which the National Aeronautics and Space Administration (NASA) estimates will average $1.3 billion, or $13 billion over a 10-year mission life after the space station is fully assembled in 2004.GAO n...
Space Station: U.S. Life-Cycle Funding Requirements
T-NSIAD-98-212: Published: Jun 24, 1998. Publicly Released: Jun 24, 1998.
GAO discussed U.S. funding requirements for the National Aeronautics and Space Administration's (NASA) International Space Station program, focusing on the station's development, assembly, and operation costs. GAO also: (1) compared the current cost estimate with the estimate in its June 1995 report; and (2) provided information on potential cost increases, current program reserves, the prime cont...
Evolved Expendable Launch Vehicle: DOD Guidance Needed to Protect Government's Interest
NSIAD-98-151: Published: Jun 11, 1998. Publicly Released: Jun 11, 1998.
Pursuant to a congressional request, GAO reviewed the Evolved Expendable Launch Vehicle (EELV) program, with emphasis on the Department of Defense's (DOD) revised acquisition approach, focusing on whether: (1) DOD's goal of reducing recurring space launch costs could be achieved; (2) DOD's planned investment would result in commensurate benefits; and (3) there are risks that could affect the progr...
International Space Station: U.S. Life-Cycle Funding Requirements
NSIAD-98-147: Published: May 22, 1998. Publicly Released: Jun 1, 1998.
Pursuant to a congressional request, GAO reviewed issues associated with the National Aeronautics and Space Administration's (NASA) International Space Station program, focusing on: (1) estimates of the station's development, assembly, and operations costs and comparing this estimate with the estimate in GAO's June 1995 report; (2) program uncertainties that may affect those costs; (3) potential d...