Enhanced Thematic Mapper Plus (ETM+)

"The Enhanced Thematic Mapper Plus (ETM+) instrument onboard Landsat 7 is a fixed “whisk-broom”, eight-band, multispectral scanning radiometer capable of providing high-resolution imaging information of the Earth’s surface. It detects spectrally-filtered radiation in VNIR, SWIR, LWIR and panchromatic bands from the sun-lit Earth in a 183 km wide swath when orbiting at an altitude of 705 km." (NASA 2021)

Sources

NASA. 2021. “The Enhanced Thematic Mapper Plus (ETM+).” Landsat Science. 2021. https://landsat.gsfc.nasa.gov/landsat-7/landsat-7-etm.