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FOSSASAT2E22, 66779

Orbit data source: Space-Track

FOSSASAT2E22, 66779 is a Spanish payload satellite 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/66779?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

66779, 2025-276DU

Orbit

SSO

Country

ES / SPN

Related business

WISeKey International Holding Ltd (CH)

Manufacturer

Fossa Systems

Mission

Operational Commercial Communications

Bus & Motor

CUBESAT 3U, Unknown motor

Mass

4 kg wet, 4 kg dry

Launch date (UTC)

2025-11-28 (7 months ago)

Launch vehicle

FALCON 9

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 0.1 m

Radar Cross Section

0.035 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history
Last TLE update: 2 days ago

TLE from 2 days ago

0 FOSSASAT2E22
1 66779U 25276DU  26191.45466901  .00004394  00000-0  21483-3 0  9992
2 66779  97.4178 264.2212 0006410  67.2016 292.9895 15.18726232 33934

Epoch: 2026-07-10T10:54Z

TLE epoch observation values (Epoch: 2026-07-10T10:54:43.402Z)

Latitude

-0.00002°

Longitude

172.15836°

Altitude

511.055 km

Speed

7.609 km/s

True Right ascension

17h 36m 53s

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

19:42:15

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

511.07 km

Perigee altitude

502.244 km

Semi-major axis

6,884.794 km

Eccentricity

0.00064

Inclination

97.4178°

RAAN

264.2212°

Arg. of periapsis

67.2016°

True anomaly

292.92186°

Mean anomaly

292.9895°

Eccentric anomaly

292.95568°

Mean motion

3.79933 °/min

Orbital period

94.75 mins

BSTAR

0.00021483

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

FLOCK 4H 32, 66735

FOSSASAT2E24, 66780

GYEONGGISAT-1, 66771

LEMUR-2-CELIJO-SB-PK, 66781

LEMUR-2-STARLIGHT, 66783

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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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FOSSASAT2E22 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	2026-07-12 17:14:53.681Z	37.41° NE	2026-07-12 17:17:53.681Z	110.768° ESE	28.418°	2026-07-12 17:20:53.681Z	163.647° S
5 mins	2026-07-13 05:27:53.681Z	210.538° SW	2026-07-13 05:29:53.681Z	264.968° W	28.926°	2026-07-13 05:32:53.681Z	326.531° NNW

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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 FOSSASAT2E22, 66779 on other resources

View FOSSASAT2E22, 66779 on NASA - NSSDCA Website

View FOSSASAT2E22, 66779 on Heavens-Above

View FOSSASAT2E22, 66779 on Keep Track

View FOSSASAT2E22, 66779 on Celestrak

View FOSSASAT2E22, 66779 on Gunter's Space Page

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

FOSSASAT2E22, 66779

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 days ago

TLE from 2 days ago

TLE epoch observation values (Epoch: 2026-07-10T10:54:43.402Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

FOSSASAT2E22 Visibility forecast

Co-orbital & Co-planar RSOs

Check out FOSSASAT2E22, 66779 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 days ago