Space oblique for LANDSAT¶
Space oblique for LANDSAT is a specialization of Space Oblique Mercator which specifies the appropriate ascending longitude, inclination angle, and orbital period for Landsat satellites, based on their satellite designation / id and path number.
"Paths" are the repeating ground tracks that are traced by sun-synchronous satellites like those of the Landsat program.
Classification |
Cylindrical |
Available forms |
Forward and inverse, spherical and ellipsoidal |
Defined area |
Global |
Alias |
lsat |
Domain |
2D |
Input type |
Geodetic coordinates |
Output type |
Projected coordinates |
proj-string: +proj=lsat +lat_1=-60 +lat_2=60 +lsat=2 +path=2¶
Parameters¶
Required¶
- +lsat=<value>¶
Landsat satellite used for the projection. Value between 1 and 5.
Optional¶
- +lon_0=<value>¶
Central meridian/longitude of natural origin, longitude of origin or longitude of false origin (naming and meaning depend on the projection method).
Defaults to 0.0.
Note
The default convention is to interpret this value as decimal degrees. To specify radians instead, follow the value with the "r" character.
Example: +lon_0=1.570796r
See Projection Units for more information.
- +ellps=<value>¶
The name of a built-in ellipsoid definition.
See Ellipsoids for more information, or execute
proj -lefor a list of built-in ellipsoid names.Defaults to "GRS80".
- +R=<value>¶
Radius of the sphere, given in meters. If used in conjunction with
+ellps,+Rtakes precedence.See Ellipsoid size parameters for more information.
- +x_0=<value>¶
False easting, easting at false origin or easting at projection centre (naming and meaning depend on the projection method). Always in meters.
Defaults to 0.0.
- +y_0=<value>¶
False northing, northing at false origin or northing at projection centre (naming and meaning depend on the projection method). Always in meters.
Defaults to 0.0.