LowEarth

HYDROGNSS-2

NORAD 66763· COSPAR 2025-276DB· Active satellite· Other / Unclassified· SSO
Launch
Launched on Nov 28, 2025 from Space Launch Complex 4E, United States of America aboard a Falcon 9 Block 5.
Falcon 9 Block 5 | Transporter 15 (Dedicated SSO Rideshare)
Live · TLE epoch 2026-09-08 12:10 UTC
Orbit class
SSO — Sun-Synchronous (LEO at 96–102° inclination)
Operator
ESA
Country
European Space Agency
Manufacturer
Launched
Nov 28, 2025
Mass
Apogee
543 km
Perigee
526 km
Inclination
97.41°
Period
1.59 h

Altitude history

Apogee and perigee for HYDROGNSS-2 across 14 days of archived orbital elements (15 element sets, one per day).

Trend
Stable
Change
-0.2 km
Rate
-0.01 km/day
Now
526 × 543 km
535544526Aug 26Sep 9
Apogee Perigee

Derived from our own archive of CelesTrak orbital elements, sampled every 3 hours. Short windows show drag and station-keeping; they are not a reentry prediction.

Launched with

60 other catalogued objects still in orbit from launch 2025-276 (Falcon 9 Block 5 | Transporter 15 (Dedicated SSO Rideshare)).

…and 36 more from this launch.

Sources & further reading

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