SENTINEL-3C, 100689
Orbit data source: Space-Track
SENTINEL-3C, 100689 is a payload satellite owned by ESA (ESA) in SSO that was launched on Tue, 15 Sep 2026 UTC launched from the French Guiana (FRGUI). 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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100689 intel report (Beta)
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Identifier
Orbit
Country
ESARelated business
Manufacturer
Thales Alenia
Mission
Operational Civil Imaging
Bus & Motor
FLEX, Unknown motor
Mass
400 kg wet, 370 kg dry
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Box + 1 Pan, 1.5 m
Radar Cross Section
3.617 m²
Expand to show TLE details & historyLast TLE update: 11 hours ago
TLE from 11 hours ago
0 SENTINEL-3C
1 A0689U 26209A 26261.92598737 -.00000051 00000-0 -34914-5 0 9993
2 A0689 98.6354 328.0322 0007036 356.7321 3.3810 14.21774426 545Epoch: 2026-09-18T22:13Z
TLE epoch observation values (Epoch: 2026-09-18T22:13:25.308Z)
Latitude
0°
Longitude
-3.16512°
Altitude
817.221 km
Speed
7.447 km/s
True Right ascension
21h 52m 07s
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
02:29:21
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
821.573 km
Perigee altitude
811.449 km
Semi-major axis
7,194.648 km
Eccentricity
0.0007
Inclination
98.6354°
RAAN
328.0322°
Arg. of periapsis
356.7321°
True anomaly
3.38576°
Mean anomaly
3.381°
Eccentric anomaly
3.38338°
Mean motion
3.55655 °/min
Orbital period
101.22 mins
BSTAR
-0.0000034914
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Other satellites on launch #209 in the year 2026 (2026-09-15 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.SENTINEL-3C 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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2026-09-19 17:22:35.621Z | 14.65° NNE | 2026-09-19 17:27:35.621Z | 148.606° SSE | 83.542° | 2026-09-19 17:32:35.621Z | 192.967° SSW |
| 4 mins | 2026-09-20 03:07:35.621Z | 82.119° E | 2026-09-20 03:09:35.621Z | 55.435° ENE | 16.811° | 2026-09-20 03:11:35.621Z | 31.081° NE |
| 9 mins | 2026-09-20 04:44:35.621Z | 179.593° S | 2026-09-20 04:48:35.621Z | 254.869° W | 64.144° | 2026-09-20 04:53:35.621Z | 339.546° N |
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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