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Landsat7

Landsat7
Landsat 7, launched on April 15, 1999, is the latest satellite of the Landsat program. Landsat 7's primary goal is to refresh the global archive of satellite photos, providing up-to-date and cloud-free images. The Landsat Program is managed and operated by the USGS, and data from Landsat 7 is collected and distributed by the USGS. The NASA World Wind project allows 3D images from Landsat 7 and other sources to be freely navigated and viewed from any angle. The satellite's companion, Earth Observing-1, trails one minute following the exact orbital characteristics.
 
Landsat 7 was designed to last for five years, and has the capacity to collect and transmit up to 532 images per day. It is in a polar, sun-synchronous orbit, meaning it scans across the entire earth's surface. With an altitude of 705 kilometres +/- 5 kilometres, it takes 232 orbits, or 16 days, to do so. The satellite weighs 1973 kg, is 4.04 m long, and 2.74 m in diameter. Unlike its predecessors, Landsat 7 has a solid state memory of 378 gigabits (roughly 100 images). The main instrument on board Landsat 7 is the Enhanced Thematic Mapper Plus (ETM+).
 
On May 31, 2003 the Scan Line Corrector (SLC) in the ETM+ instrument failed. The SLC consists of a pair of small mirrors that rotate about an axis in tandem with the motion of the main ETM+ scan mirror. The purpose of the SLC is to compensate for the forward motion (along-track) of the spacecraft so that the resulting scans are aligned parallel to each other. Without the effects of the SLC, the instrument images the Earth in a "zig-zag" fashion, resulting in some areas that are imaged twice and others that are not imaged at all. The net effect is that approximately 22% of the data in a Landsat 7 scene is missing when acquired without a functional SLC.
 
Landsat 7 continues to acquire data in this mode. Data products are available with the missing data optionally filled in using other Landsat 7 data selected by the user. To continue the Landsat legacy, studies are underway to fly an equivalent scientific sensor on a new satellite.
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EOD Bundle 2018 Satellite Data
Complete EOD Bundle 2018 Satellite Data Bundle from EarthOnDrive Includes: 1. Landsat eTM7 15m Wo..
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Jakarta Landsat ETM7
Jakarta Landsat ETM7 15m resolution image mosaics and ASTER city images. Panchromatic sharpened a..
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Landsat Best Of Landsat ETM7 mosaic Bundle
Landsat Best Of Landsat ETM7 mosaic Bundle EarthOnDrive 15-meter imagery offers its 15m Complete ..
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LANDSAT Mosaic 15m Imagery Data
LANDSAT TM7 Mosaic 15m Imagery Data   We have processed a very large  and seamless c..
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Based on 44 reviews.
Mount Everest 3D
The data set was taken in 2005 by Swiss Photo over what is now Nepal (China) and is 20cm in resol..
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