WMO OSCAR | Satellite: HydroGNSS-1

Satellite: HydroGNSS-1

Satellite details

Acronym	HydroGNSS-1
Full name	Hydro Global Navigation Satellite System-1
WIGOS Station Identifier	---
Satellite Description	First of 2 satellites Main mission: sea-surface wind observation by GNSS signals analysis. Significant contribution to soil moisture, freeze thaw state over permafrost, inundation and wetlands, and above ground biomass.
Mass at launch		Dry mass	40 kg
Power
Data access link	no link provided
Data access information
Orbit	Sunsynchronous orbit	Altitude	550 km
ECT	10:30

Space agency	ESA , UKSA, SSTL
Status	Planned
Details on Status (as available)
Launch	Dec 2024	EOL	≥2029
Last update:	2024-11-30

Associated satellite programme and related satellites

Note: red tag: no longer operational , green tag: operational , blue tag : future

Hydro Global Navigation Satellite System
- HydroGNSS-1 (2024-12 - 2029)
- HydroGNSS-2 (2024-12 - 2029)

Satellite Payload

All known Instruments flying on HydroGNSS-1

Acronym	Full name
GNSS-R	GNSS Reflectometer

Satellite payload

All known instruments flying on HydroGNSS-1

Instrument	Full name	Start date	EOL date	Status	NRT data	Data latency (mins)	Instrument calibration	Comments
GNSS-R	GNSS Reflectometer	≥2024 *	≥2029 *	Commissioning

* The information in this field is estimated or assumed

Satellite frequencies for Earth Observation, data transfer and platform communications and control

Earth observation MW frequencies

Service	Sensing mode	Frequency (GHz)	Bandwidth (MHz)	Polarisation	Comments
HydroGNSS	active	1.5754 GHz	30.69 MHz