ESSAIM-4, 28497
Orbit data source: Space-Track
ESSAIM-4, 28497 is a French payload satellite in SSO that was launched on Sat, 18 Dec 2004 UTC via an ARIANE 5G+ launch vehicle 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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28497 intel report (Beta)
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Identifier
Orbit
Country
FRRelated business
Manufacturer
EADS/Bremen
Mission
Defense Sigint
Bus & Motor
MYRIADE, Unknown motor
Mass
119 kg wet, 114 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 1 Pan, 2.5 m
Radar Cross Section
0.607 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 ESSAIM-4
1 28497U 04049F 26171.44254369 .00000887 00000-0 10283-3 0 9991
2 28497 98.2527 58.8597 0000725 51.0787 309.0493 14.88131228159943Epoch: 2026-06-20T10:37Z
TLE epoch observation values (Epoch: 2026-06-20T10:37:15.774Z)
Latitude
-0.00003°
Longitude
-9.11312°
Altitude
606.478 km
Speed
7.556 km/s
True Right ascension
03h 55m 26s
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
00:39:36
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
601.327 km
Perigee altitude
600.315 km
Semi-major axis
6,978.958 km
Eccentricity
0.00007
Inclination
98.2527°
RAAN
58.8597°
Arg. of periapsis
51.0787°
True anomaly
309.04285°
Mean anomaly
309.0493°
Eccentric anomaly
309.04607°
Mean motion
3.72269 °/min
Orbital period
96.7 mins
BSTAR
0.00010283
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Other satellites on launch #49 in the year 2004 (2004-12-18 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.ESSAIM-4 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 | 2026-06-22 16:00:04.505Z | 139.128° SSE | 2026-06-22 16:04:04.505Z | 58.701° ENE | 32.132° | 2026-06-22 16:07:04.505Z | 5.821° NNE |
| 4 mins | 2026-06-22 17:38:04.505Z | 241.433° WSW | 2026-06-22 17:40:04.505Z | 274.437° WNW | 15.313° | 2026-06-22 17:42:04.505Z | 303.586° NW |
| 6 mins | 2026-06-23 05:22:04.505Z | 18.082° NNE | 2026-06-23 05:25:04.505Z | 163.36° S | 42.932° | 2026-06-23 05:28:04.505Z | 189.19° SSW |
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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