In the present day, July 23, 2021, is the Landsat-1 Earth Observing Satellite tv for pc’s forty ninth birthday. Launched on this date in 1972, the Landsat-1 was the primary of a sequence of satellite tv for pc missions collectively managed by NASA and the U.S. Geological Survey (USGS). When it was launched, it was initially known as the Earth Sources Expertise Satellite tv for pc, or ERTS-1 for brief. The launches of Landsat-2, -3, and -4 adopted in 1975, 1978, and 1982. Landsat is part of the USGS Nationwide Land Imaging (NLI) Program. Landsat information is processed and hosted on the USGS Earth Sources Remark and Science (EROS) Heart
The multi-agency Earth Sources Satellites Program was begun in 1966 by the Division of the Inside. The purpose of this system was to assemble information from the Earth through distant sensing Landsat-2 started in 1967. In 1968 and 1969, NASA carried out research with multispectral scanners for the satellite tv for pc. On the identical time, Hughes entered right into a contract with NASA to finish the multispectral scanner (MSS) for Landsat-1. In 1970, Common Electrical was chosen because the prime contractor for the Earth observing satellite tv for pc; it was manufactured by GE’s Area Division positioned in Valley Forge, Pennsylvania.
Landsat-1 was constructed on a climate satellite tv for pc platform, constructing off the Nimbus sequence of climate satellites of the time.
Landsat-1 was launched atop a Delta 0900 rocket out of Vandenberg Air Drive Base in California. After launch, the spacecraft was positioned in a sun-synchronous orbit, with an altitude of roughly 565 miles; it orbited the Earth each 103 minutes. Floor breaking on the time, it was the primary satellite tv for pc launched with the only objective of learning and monitoring planet Earth.
Landsat 1 operated till January 1978, outliving its design life by 5 years. Based on NASA, the standard and influence of the ensuing info exceeded all expectations.
On January 14, 1975, eight days earlier than the second earth observing satellite tv for pc was to launch, NASA introduced that ERTS-1 was renamed Landsat 1 and ERTS-B can be named Landsat 2 after launch.
In the present day, scientists are getting ready for the 2021 launch of Landsat-9. Like all the missions earlier than it, Landsat 9 is a joint mission of NASA and the USGS. Based on NASA, Landsat 9 is essentially the most superior satellite tv for pc within the Landsat sequence; it is going to lengthen the information document of Earth’s land floor that started with the primary Landsat satellite tv for pc in 1972. Landsat’s high-quality scientific information makes multi-decadal time sequence research potential, and its information are repeatedly used for land administration efforts all over the world.
Landsat-9 is because of launch from launchpad SLC-3E on the now-Vandenberg Area Drive Base in California on September 16. Constructed by Northrop Grumman, Landsat-9 will proceed the sequence of Landsat photographs of Earth. The satellite tv for pc might be lifted off into area on high of a United Launch Alliance Atlas 5 rocket flying within the 401 car configuration with a four-meter fairing, no stable rocket boosters, and a single-engine Centaur higher stage.