Swath overlap (or sidelap) varied from 14 percent at the Equator to a maximum of approximately 85 percent at 81° north or south latitude
Return Beam Vidicon (RBV)
The RBV system on Landsat 2 was operated primarily for engineering evaluation purposes and only occasional RBV imagery was obtained, primarily for cartographic uses in remote areas.
80 m resolution in the multispectral band
Three cameras that operate in the following spectral bands:
Visible blue-green (475-575 nm)
Visible orange-red (580-680 nm)
Visible red to Near-Infrared (690-830 nm)
Data: 3.5 MHz video
Multispectral Scanner (MSS)
Four spectral bands:
Band 4 Visible green (0.5 to 0.6 µm)
Band 5 Visible red (0.6 to 0.7 µm)
Band 6 Near-Infrared (0.7 to 0.8 µm)
Band 7 Near-Infrared (0.8 to 1.1 µm)
Six detectors for each spectral band provided six scan lines on each active scan
Ground Sampling Interval (pixel size): 57 x 79 m
Scene size: 170 km x 185 km (106 mi x 115 mi)
Originally designated ERTS-B (Earth Resources Technology Satellite-B), then named Landsat-2 prior to launch
Design Life: Minimum of 1 year
Landsat represents the world's longest continuously acquired collection of space-based moderate-resolution land remote sensing data. Four decades of imagery provides a unique resource for those who work in agriculture, geology, forestry, regional planning, education, mapping, and global change research. Landsat images are also invaluable for emergency response and disaster relief.
The Landsat Update is an informal communication tool, prepared periodically and distributed electronically to USGS Landsat partners, to provide information about Landsat activities and related topics of interest.