| 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]
- ^ "THE CEOS DATABASE : MISSION, INSTRUMENTS AND MEASUREMENTS - TRUTHS". database.eohandbook.com. Retrieved 2023-12-05.
- ^ "Mission objectives". NPLWebsite. Retrieved 2023-12-05.
- ^ "Learn more about TRUTHS". NPLWebsite. Retrieved 2023-12-05.
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