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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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Iframe URL

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 (4 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

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Last TLE update: 1 day ago

TLE from 1 day ago

0 FOSSASAT2E22
1 66779U 25276DU  26091.93586013  .00013088  00000-0  64646-3 0  9999
2 66779  97.4231 166.6027 0006502  54.8970 305.2873 15.17976559 18830

Epoch: 2026-04-01T22:27Z

TLE epoch observation values (Epoch: 2026-04-01T22:27:38.315Z)

Latitude

0.00002°

Longitude

-0.5985°

Altitude

512.457 km

Speed

7.609 km/s

True Right ascension

11h 06m 24s

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

04:49:35

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

513.404 km

Perigee altitude

504.448 km

Semi-major axis

6,887.063 km

Eccentricity

0.00065

Inclination

97.4231°

RAAN

166.6027°

Arg. of periapsis

54.897°

True anomaly

305.22645°

Mean anomaly

305.2873°

Eccentric anomaly

305.25688°

Mean motion

3.79745 °/min

Orbital period

94.8 mins

BSTAR

0.00064646

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

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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	2026-04-03 04:38:51.023Z	147.931° SSE	2026-04-03 04:41:51.023Z	82.747° E	37.101°	2026-04-03 04:44:51.023Z	2.524° NNE
6 mins	2026-04-03 17:44:51.023Z	15.321° NNE	2026-04-03 17:46:51.023Z	30.679° NE	42.237°	2026-04-03 17:50:51.023Z	189.881° SSW

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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: 1 day ago

TLE from 1 day ago

TLE epoch observation values (Epoch: 2026-04-01T22:27:38.315Z)

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: 1 day ago