OLI & TIRS
To help users familiarise themselves with the Landsat OLI and TIRS instruments, and its science data products, the Landsat 8 Data Users Handbook is available online.
The OLI & TIRS menu to your right provides information concerning the SPPA activities for these instruments.
A brief description of the instruments, their operations and main mission highlights are available in the sections below:Sensor Description | Sensor Modes | Mission Operations Overview
OLI Sensor Description
The Landsat Operational Land Imager (OLI) uses a technological approach demonstrated by the Advanced Land Imager (ALI) sensor flown on NASA's experimental EO-1 satellite launched November 21 2000.
Detailed information on the Landsat 8 spacecraft can be found here.
TIRS Sensor Description
The Landsat Thermal Infra-Red Scanner (TIRS) provides two more narrow spectral bands in the Thermal (originally covered by a single band in the previous TM and ETM+ sensors) and is a QWIP (Quantum Well Infra-Red Photodetector) based instrument intended to supplement the observations of the OLI instrument.