Names | Traceable Radiometry Underpinning Terrestrial- and Helio-Studies |
---|---|
Mission type | Solar radiation measurement, traceability |
Mission duration | 5-8+ years (planned) |
Start of mission | |
Launch date | ~2030 |
Rocket | Vega-C (planned) |
Launch site | Centre Spatial Guyanais |
Orbital parameters | |
Reference system | Geocentric |
Regime | Polar |
Altitude | 610 km |
Inclination | 90° |
Period | 96.9 minutes[1] |
Repeat interval | 61 days |
Instruments | |
CSAR - cryogenic solar absolute radiometer HIS - hyperspectral imaging spectrometer | |
The Traceable Radiometry Underpinning Terrestrial- and Helio-Studies mission (TRUTHS) is a planned European Space Agency (ESA) satellite. It is meant to "improve the accuracy, reliability and integrity" of Earth observation (EO) data,[2] and to be the first of a new class of "SI-traceable satellites" (SITSats) that will enable other EO missions to calibrate measurements with reference to them.[3]
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