FOSSASAT2E21, 64536
Orbit data source: Space-Track
FOSSASAT2E21, 64536 is a payload satellite owned by WiseKey (ES) in SSO that was launched on Mon, 23 Jun 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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64536 intel report (Beta)
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Identifier
Orbit
Country
ES / SPNRelated business
Manufacturer
Fossa Systems
Mission
Operational Commercial Communications
Bus & Motor
CUBESAT 3U, Unknown motor
Mass
4 kg wet, 4 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
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 & historyLast TLE update: 9 hours ago
TLE from 9 hours ago
0 FOSSASAT2E21
1 64536U 25135J 26104.87361740 .00002038 00000-0 98853-4 0 9999
2 64536 97.4564 219.9159 0005430 58.8498 301.3268 15.19630196 45206Epoch: 2026-04-14T20:58Z
TLE epoch observation values (Epoch: 2026-04-14T20:58:00.543Z)
Latitude
-0.00008°
Longitude
62.37003°
Altitude
508.103 km
Speed
7.611 km/s
True Right ascension
14h 39m 39s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
12:16:59
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
507.663 km
Perigee altitude
500.189 km
Semi-major axis
6,882.063 km
Eccentricity
0.00054
Inclination
97.4564°
RAAN
219.9159°
Arg. of periapsis
58.8498°
True anomaly
301.27363°
Mean anomaly
301.3268°
Eccentric anomaly
301.30022°
Mean motion
3.80159 °/min
Orbital period
94.7 mins
BSTAR
0.000098853
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Other satellites on launch #135 in the year 2025 (2025-06-23 UTC)
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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.FOSSASAT2E21 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-04-15 08:09:50.885Z | 204.675° SW | 2026-04-15 08:11:50.885Z | 253.396° W | 29.822° | 2026-04-15 08:14:50.885Z | 325.214° NNW |
| 4 mins | 2026-04-15 21:14:50.885Z | 326.565° NNW | 2026-04-15 21:16:50.885Z | 278.434° WNW | 21.981° | 2026-04-15 21:18:50.885Z | 240.637° WSW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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 |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
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