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Ecosystem Spaceborne Thermal Radiometer Experiment on Space Station (ECOSTRESS) is a NASA mission to globally measure the temperature of plants. This is accomplished through the mission's single instrument: the Prototype Hyperspectral Infrared Imager Thermal Infrared Radiometer (PHyTIR). From its mounting aboard the International Space Station, PHyTIR measures the thermal infrared brightness temperatures (BT) of plants with a sensitivity of ≤0.1 Kelvin.

Instrument Type

Radiometer

Specifications

Resolution

Spatial

PHyTIR provides data with 38-meter in-track by 69-meter cross-track spatial resolution.

Spectral

5 spectral bands in the 8  μm to 12.5 μm range and an additional band at 1.6 μm for geolocation and cloud detection (six bands total).

Temporal

About 1 to 7 days.

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