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HYDROGNSS-1, 66762

Orbit data source: Space-Track

HYDROGNSS-1, 66762 is a payload satellite owned by ESA (ESA) in SSO that was launched on Fri, 28 Nov 2025 UTC via an FALCON 9 launch vehicle from the Air Force Western Test Range (AFWTR). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.

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https://www.satcat.com/sats-embedded/66762?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

66762, 2025-276DA

Orbit

SSO

Country

ESA

Related business

European Space Agency (FR)

Manufacturer

SSTL

Mission

Operational Civil Earth Obs Sci

Bus & Motor

SSTL-21, Unknown motor

Mass

65 kg wet, 65 kg dry

Launch date (UTC)

2025-11-28 (6 months ago)

Launch vehicle

FALCON 9

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 3 Pan, 1.0 m

Radar Cross Section

0.684 m²

Expand to show TLE details & history
Last TLE update: 12 hours ago

TLE from 12 hours ago

0 HYDROGNSS-1
1 66762U 25276DA  26141.18881073  .00001842  00000-0  11296-3 0  9996
2 66762  97.4209 214.4783 0012168 138.2389 221.9772 15.11294709 26277

Epoch: 2026-05-21T04:31Z

TLE epoch observation values (Epoch: 2026-05-21T04:31:53.247Z)

Latitude

-0.00002°

Longitude

-92.33115°

Altitude

541.586 km

Speed

7.588 km/s

True Right ascension

14h 17m 54s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

01:45:31

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

537.633 km

Perigee altitude

520.824 km

Semi-major axis

6,907.366 km

Eccentricity

0.00122

Inclination

97.4209°

RAAN

214.4783°

Arg. of periapsis

138.2389°

True anomaly

221.88405°

Mean anomaly

221.9772°

Eccentric anomaly

221.93061°

Mean motion

3.78072 °/min

Orbital period

95.22 mins

BSTAR

0.00011296

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Other satellites on launch #276 in the year 2025 (2025-11-28 UTC)

FLOCK 4H 6, 66709

IRIDE FM3, 66697

LILIUM-3, 66770

LEMUR-2-TEODOR, 66768

PELICAN-5 300C, 66667

LEMUR-2-VUKASIN, 66785

HYDROGNSS-2, 66763

LILIUM-2, 66679

NUSAT-51 (YVONNE BRILL), 66740

Did you know?

You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

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HYDROGNSS-1 Visibility forecast

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Span	Click to sort rows by Start time (UTC) header in descending order	Start Az.	Max El. time (UTC)	Max El. Az.	Max El.	End time (UTC)	End Az.
6 mins	2026-05-21 17:48:37.518Z	9.157° NNE	2026-05-21 17:51:37.518Z	253.159° W	44.551°	2026-05-21 17:54:37.518Z	196.747° SSW
5 mins	2026-05-22 04:30:37.518Z	136.03° SSE	2026-05-22 04:32:37.518Z	90.692° ESE	33.062°	2026-05-22 04:35:37.518Z	8.795° NNE

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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Click to sort rows by RSO header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Type header in ascending order	Click to sort rows by Inclination Δ header in ascending order	Click to sort rows by RAAN Δ header in ascending order	Click to sort rows by Coplanar Angle header in ascending order	Click to sort rows by SMA Δ header in ascending order	Click to sort rows by Orbital period header in ascending order	Click to sort rows by <5km Md TCA header in descending order

CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out HYDROGNSS-1, 66762 on other resources

View HYDROGNSS-1, 66762 on NASA - NSSDCA Website

View HYDROGNSS-1, 66762 on Heavens-Above

View HYDROGNSS-1, 66762 on Keep Track

View HYDROGNSS-1, 66762 on Celestrak

View HYDROGNSS-1, 66762 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

HYDROGNSS-1, 66762

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 12 hours ago

TLE from 12 hours ago

TLE epoch observation values (Epoch: 2026-05-21T04:31:53.247Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #276 in the year 2025 (2025-11-28 UTC)

HYDROGNSS-1 Visibility forecast

Co-orbital & Co-planar RSOs

Check out HYDROGNSS-1, 66762 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 12 hours ago