Objectives and Applications
This Scout mission, HydroGNSS, will provide measurements of key hydrological climate variables, including soil moisture, freeze–thaw state over permafrost, inundation and wetlands, and above-ground biomass, using a technique called Global Navigation Satellite System (GNSS) reflectometry. In doing so it will complement missions such as ESA’s SMOS and Biomass, Copernicus Sentinel-1 and NASA’s SMAP. Knowledge of these variables helps scientists understand climate change and contributes towards weather modelling, ecology mapping, agricultural planning and flood preparedness.
Full Name
HydroGNSS-A and -B
aka Scout-2
Mission Status
Approved
Mission Agencies
Launch Date
Oct 2025
Mission Links
EOL Date
Dec 2031
Orbit Type
Sun-synchronous
Orbit Period
95.6 minutes
Orbit Sense
Ascending
Orbit Inclination
98.7 deg
Orbit Altitude
550 km
Orbit Longitude
Orbit LST
10:30
Repeat Cycle
30 days
NORAD Catalog #
International Designator
SGR-ReSI-Z - Space GNSS Receiver - Remote Sensing Instrument (Zynq based) |
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