SATELLITE SYSTEMS Presented By M.R.RIFAS AHAMED 11/SS/002 FACULTY OF GEOMATICS Sabaragamuwa University of Sri Lanka
Aug 06, 2015
SATELLITE SYSTEMS
Presented By
M.R.RIFAS AHAMED
11/SS/002
FACULTY OF GEOMATICS
Sabaragamuwa University of Sri Lanka
What is Satellite Systems
A satellite is defined as any object that orbits any other object. Satellites can be celestial, such as a moon orbiting a planet in the solar system, or a planet in the solar system orbiting the sun. Satellites can also be man-made. Man-made satellites are typically launched into outer space from earth to collect data, photos and other information about Earth and all the many things that exist around it.
History of LANDSAT Program..
The Landsat program was inspired by Apollo moon bound missions.
William Pecora proposed the idea of having remote sensing satellites in space in 1964.
Eight years later, his proposal became reality, and the Landsat program had begun.
Landsat 1 was launched on July 23, 1972. Since then, six other satellites have been launched.
Landsat 7 is the most recent satellite we have launched, providing us the most technological data possible.
LANDSAT 7
Landsat 7, launched on April 15, 1999, is the seventh 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 by one minute and follows the same orbital characteristics. Landsat 7 was built by Lockheed Martin Space Systems Company. Landsat 7 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.
Series of LANDSAT launches..
Landsat 1 (originally named Earth Resources Technology Satellite 1) - launched July 23, 1972
Landsat 2 - launched January 22, 1975
Landsat 3 - launched March 5, 1978
Landsat 4 - launched July 16, 1982
Landsat 5 - launched March 1, 1984
Landsat 6 - launched October 5, 1993
Landsat 7 - launched April 15, 1999, still functioning, but with faulty scan line corrector (May 2003)
LANDSAT 7 Mission Type Earth Imaging
Operator USGS/NASA
Launch Date 15 April 1999 18:32:00 UTC
Launch Site Vandenberg SLC-2W
Rocket Delta II 7920
Contractor Boeing
Reference System Geocentric
Inclination 98.21degrees
Period 98.83minutes
Repeat Interval 16days
Altitude 705kilometres +/- 5km
Weight 1973kg
Mission Duration Elapsed 16 years 2 months and 14 days
Sensor used on LANDSAT 7
EnhancedThematicMapper Plus(ETM+)
Landsat 7
Wavelength(micrometers)
Resolution(meters)
Band 1 0.45-0.52 30
Band 2 0.52-0.60 30
Band 3 0.63-0.69 30
Band 4 0.77-0.90 30
Band 5 1.55-1.75 30
Band 6 10.40-12.50 60 * (30)
Band 7 2.09-2.35 30
Band 8 .52-.90 15
Applications of LANDSAT 7
Environmental monitoring Geological and hydrological analysis Agriculture, forestry, and natural resources
monitoring Land use classification and mapping Coastal resources GIS backdrops and land surface analysis
Images taken by LANDSAT 7
Thank You…