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HydroGNSS

HydroGNSS (Hydrological Global Navigation Satellite System) is an Earth observation satellite mission by the European Space Agency (ESA) consisting of two identical small satellites carrying GNSS reflectometry instruments. The mission is using satellite navigation signals reflected from the Earth surface to monitor various Essential Climate Variables…

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Altitude
550 km
COSPAR ID
HydroGNSS 1: 2025-276AG HydroGNSS 2: 2025-276AH
Launch date
28 November 2025, 18:44 UTC
Launch site
SLC-4E
Manufacturer
Surrey Satellite Technology
Mission duration
8 months, 27 days (in progress)

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HydroGNSS

Nodes29
Edges28
Triples41
Avg. degree1.93
Density0.068966
Components1

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HydroGNSS

Top relations

related to background · 15
HydroGNSS → CubeMAP, CYGNSS, ESA, ESA's Scout, FutureEO, GNSS, NASA, Scout, Scout-1, Scout-2, Surrey Satellite Technology Ltd, TechDemoSat-1, That, The, UKSA
related to history · 13
HydroGNSS → After, California, ESA, Falcon, Flight Acceptance Review, FutureEO, In August, In March, In October, In September, November, Scout, Surrey Satellite Technology
Altitude · 1
HydroGNSS → 550 km
COSPAR ID · 1
HydroGNSS → HydroGNSS 1: 2025-276AG HydroGNSS 2: 2025-276AH
Launch date · 1
HydroGNSS → 28 November 2025, 18:44 UTC
Launch site · 1
HydroGNSS → SLC-4E
Manufacturer · 1
HydroGNSS → Surrey Satellite Technology
Mission duration · 1
HydroGNSS → 8 months, 27 days (in progress)
Mission type · 1
HydroGNSS → Earth observation satellite
Operator · 1
HydroGNSS → ESA

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Important terminology

esa mission satellite satellites 2025 two launch missions falcon earth hydrological scout surrey technology observation rocket futureeo space gnss signals

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
HydroGNSSAltitude550 km1.00infobox
HydroGNSSCOSPAR IDHydroGNSS 1: 2025-276AG HydroGNSS 2: 2025-276AH1.00infobox
HydroGNSSLaunch date28 November 2025, 18:44 UTC1.00infobox
HydroGNSSLaunch siteSLC-4E1.00infobox
HydroGNSSManufacturerSurrey Satellite Technology1.00infobox
HydroGNSSMission duration8 months, 27 days (in progress)1.00infobox
HydroGNSSMission typeEarth observation satellite1.00infobox
HydroGNSSOperatorESA1.00infobox
HydroGNSSReference systemGeocentric1.00infobox
HydroGNSSRegimeSun-synchronous1.00infobox
HydroGNSSRocketFalcon 9 Transporter-151.00infobox
HydroGNSSWebsitehydrognss.org1.00infobox

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