The two-line element set coordinate system for the satellite DMSP-19 looks in the following way:
DMSP-19
1. 25063U 97074 A 476849 0.00001428 0000-0 56564-3 984 15
2. 25063 34.9848 213.37 213.37 234.2325 124.0029 15.74091 18836
DMSP satellites are used to gather more data for weather models of NOAA – the organization that creates life-saving forecasts to save people’s lives during severe weather. The DMSP-19 satellite is a LEO satellite. LEO orbit (180-2000 km) is commonly occupied with the things that are used for scientific needs. The height of the orbit influences on the shape of the orbit of a satellite. So, the satellites that are working on a low orbit usually move in a circle around the planet (Riebeek, H, 2009). Also the orbit’s height influences on the speed of a satellite. As on the LEO there is a strong gravity, the DMSP satellite has too move quickly in order not to be burnt in the atmosphere of the Earth.
The DMSP satellites are commonly used for civilian and military needs as they provide people with reliable information about the environment. Every DMSP spacecraft, including DMSP-19 satellite, has a low earth orbit (101-minute), and works between the South and North poles, giving the meteorologists up-to-date information about global coverage two times per day (Launch of DMSP-19 satellite means more data for NOAA weather forecasts). The information from DMSP satellite helps to locate, determine and identify the intension of natural disasters like hurricanes. Also, it is usually used to make 3-dimensional cloud analyses that are used for creating forecast models on a computer that should meet special military requirements. Also, DMSP spacecrafts take images of such environmental features as water, fire, clouds, pollution and snow in the infrared and visual spectra.
DMSP satellites help NOAA to forecast changes in the environment of the Earth. They provide information about what happen in the ocean and on the sun, so, it helps to manage American marine and coastal resources in the right way.
Bibliography
“Definition of Two-line Element Set Coordinate System”. human space flight. September 23, 2011.www.spaceflight.nasa.gov/realdata/sightings/SSapplications/Post/JavaSSOP/SSOP_Help/tle_def.html
“Keplerian Elements Formats”. amsat. March 11, 1999. www.amsat.org/amsat/keps/formats.html
“Launch of DMSP-19 satellite means more data for NOAA weather forecasts”. NOAA satellite and information service. April 3, 2014. http://www.nesdis.noaa.gov/news_archives/dmsp_launch.html
“NORAD Two-Line Element Set Format”. celestrak. May 16, 2014. celestrak.com/NORAD/documentation/tle-fmt.asp
Riebeek, H. “Catalog of Earth Satellite Orbits”. earth observatory. September 4, 2009. http://earthobservatory.nasa.gov/Features/OrbitsCatalog/
