Space Oblique Mercator for Landsat Projection

sc_projections_space_oblique_mercator.png

 

The Space Oblique Mercator for Landsat projection is a pre-computed form of the Space Oblique Mercator projection that allows specification of the projection by citing a Landsat Orbit Number and Orbit Path Number.

 

A modified cylindrical projection with the map surface defined by a satellite orbit. Basically conformal, especially in region of satellite scanning.

 

Scale

 

Continuously true to scale along ground track of satellite.

 

Distortion

 

Near-zero distortion along ground track of satellite.

 

Usage

 

Used for mapping images from Landsat series satellites. May be used for any satellite orbiting the Earth in a circular or elliptical orbit and at any inclination.

 

Origin

 

Developed in 1973 - 1979 by Alden P. Colvocoresses, John Parr Snyder and John L. Junkins. Colvocoresses was the first to realize that such a projection was needed and mathematically feasible, and in 1974 defined it geometrically. Snyder created the definitive formulas for the projection in 1977 - 1979, while less complete formulas were also created by Junkins in 1977. Snyder provided a complete derivation for orbits of any ellipticity in 1981.

 

Optional Forms

 

Use the Space Oblique Mercator projection for access to all parameters.