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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 (4 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, 0.8 m

Radar Cross Section

0.684 m²

Expand to show TLE details & history
Last TLE update: 19 hours ago

TLE from 19 hours ago

0 HYDROGNSS-1
1 66762U 25276DA  26091.86780451  .00004006  00000-0  23028-3 0  9994
2 66762  97.4270 166.5862 0009445 270.1312  89.8837 15.13010078 18828

Epoch: 2026-04-01T20:49Z

TLE epoch observation values (Epoch: 2026-04-01T20:49:38.309Z)

Latitude

-0.00003°

Longitude

23.95211°

Altitude

530.1 km

Speed

7.598 km/s

True Right ascension

11h 06m 20s

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

21:36:24

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

530.522 km

Perigee altitude

517.483 km

Semi-major axis

6,902.139 km

Eccentricity

0.00094

Inclination

97.427°

RAAN

166.5862°

Arg. of periapsis

270.1312°

True anomaly

89.99193°

Mean anomaly

89.8837°

Eccentric anomaly

89.93782°

Mean motion

3.78501 °/min

Orbital period

95.11 mins

BSTAR

0.00023028

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

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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.
7 mins	2026-04-02 18:00:50.958Z	3.815° NNE	2026-04-02 18:04:50.958Z	257.067° W	39.729°	2026-04-02 18:07:50.958Z	206.367° SW
6 mins	2026-04-03 04:42:50.958Z	146.236° SSE	2026-04-03 04:44:50.958Z	96.999° ESE	38.819°	2026-04-03 04:48:50.958Z	357.244° N

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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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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: 19 hours ago

TLE from 19 hours ago

TLE epoch observation values (Epoch: 2026-04-01T20:49:38.309Z)

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: 19 hours ago