An unmanned, earth-orbiting series of satellites, initiated by the National Aeronautic and Space Administration (now managed by EOSAT), that transmit images to earth receiving stations. These satellites were designed primarily for collection of earth resources data. The current Landsat satellites contains the seven channel thematic mapper (TM) multi-spectral system. The first satellite Landsat 1 (originally called ERTS: Earth Resources Technology Satellite) was launched June 1972.
The generic name for a series of natural resource scanning satellites launched by the United States beginning in 1972.
see remote sensing.
A series of unmanned satellites orbiting at about 706 km (438 miles) above the surface of the Earth. The satellites carry cameras similar to video cameras and take images or pictures showing features as small as 30 m or 80 m wide, depending on which camera is used.
Series of satellites launched by NASA for the purpose of remotely monitoring resources on the Earth. The first Landsat satellite was launched by the United States in 1972. Landsat uses two types of sensors to monitor the Earth: Thematic Mapper and Multispectral Scanner. See the following website for more information - Landsat Program.
Earth-sensing satellite managed by NASA
satellite-based imaging system that provides an array of remote images of various resolutions and spectral types, for example Thematic Mapper data.
The U.S. Landsat satellites are the first series of Earth Observation satellites providing global, repeated coverage of the Earth surface. The sensors onboard these satellites operate in the visible up to middle infrared wavelengths, and in the thermal infrared. The first satellite of the mission, ERTS-1 (later renamed Landsat-1) was launched in 1972. The current Landsat-7 mission hosts the Enhanced Thematic Mapper sensor; of its nine channels, seven acquire data in the visible up to middle infrared, at 30 m resolution. More information on the Landsat-7 mission can be found in the USGS Web pages ( http://landsat7.usgs.gov/index.php) and in the NASA Web pages ( http://landsat.gsfc.nasa.gov/).
A series of US polar orbiting satellites, first launched in 1972 by NASA, which carry both the multispectral scanner and thematic mapper sensors.
A family of satellites which carry multi-spectral sensors. More information can be found here.
satellite orbiting the Earth that relays images back that can be used to assess weather, geologic features, land use patterns, or vegetation types.
A series (6 successfully launched since 1972) of unmanned earth-orbiting NASA satellites (formerly called Earth Resources Technology Satellite – ERTS).
Land Sat ellite - A series of satellites first launched in 1972 to study the resource of the land portions of the earth. There are two sets of satellites. The early systems were known as Multi-Spectral Scanners (MSS) add produced data from the early 1970s to the early 1990s. These satellites looked at 4 bands. An improved system known as the Thematic Mapper (TM) was introduced in the early 1980s and is a 7 band system.
is a system of satellites which scan the earth at a variety of wavelengths. The satellites return information that can be used to inventory and analyze a variety of natural and human resources.
Originally called the Earth Resources Technology Satellite (ERTS), a series of satellites which observe the Earth in seven spectral bands. Landsat 1 was launched in 1972, and the current unit, Landsat 5, in 1984. A replacement for this aging unit, launched in 1993, crashed before reaching orbit.
is the name for a group of five satellites dedicated to applying remote sensing techniques to the inventory, monitoring, and management of Earth's natural resources. The Landsat system currently uses two sensors: multispectral scanner (MSS) and thematic mapper (TM).
An unmanned earth-orbiting NASA satellite (formerly called ERTS) that transmits multispectral images in the 0.4 to 1.1 micrometre range to earth receiving stations.
a series of U.S. satellites used to study the earth= s surface using remote sensing techniques.
A specific kind of satellite image that shows a larger area than a SPOT image.
The Landsat program, first known as the Earth Resources Technology Satellite (ERTS) Program, is a development of the National Aeronautics and Space Administration (NASA) in association with NOAA, USGS, and the Space Imaging. The activities of these combined groups led to the concept of dedicated Earth-orbiting satellites, the defining of spectral and spatial requirements for their instruments, and the fostering of research to determine the best means of extracting and using information from the data. The first satellite, ERTS 1, was launched on 7/23/72. The second satellite was launched on 1/22/75. Concurrently the name of the satellites and program was changed to emphasize its prime area of interest (land resources). The first two satellites were designated as Landsats 1 and 2. Landsat 3 was launched on 3/5/78. Landsat 4 was launched on 7/16/82. Landsat 5 (launched 3/1/84) is currently in service providing selected data to worldwide researchers.
Owned and launched by the United States, this is a series of remote sensing satellites that use the visible and infrared parts of the spectrum to record images of the Earth's surface. (Related words: SPOT, IRS, RADARSAT, NOAA, satellite)
An eary resources technology satellite.
A series of satellites that produce images of the earth. The Landsat remote sensing satellite program was developed by NASA (National Aeronautics and Space Administration). Landsat data are provided in .BIL (band interleaved by line) or .BIP (band interleaved by pixel) formats. BIL and BIP are supported by ArcInfo and ArcView.
A series of U.S. satellites designed for remote sensing and mapping of land areas. These satellites are launched into sun-synchronous orbits that return to image the same swath, two degrees wide, every 16 days. The primary imaging instrument on the first generation of Landsat satellites was a multispectral scanner, a four- channel radiometer with a ground resolution of 80 meters. Landsat-4 and added a second imaging instrument, a thematic mapper, a seven- channel instrument with a ground resolution of 30 meters, used to study vegetation, geology, and other surface features. Landsat-1 (originally called ERTS) was launched in 1972, with Landsat-2 and following in 1975 and 1978. Landsat-4 and were launched in 1982 and 1984.