DIADEME 1, 2674
Orbit data source: Space-Track
DIADEME 1, 2674 is a payload satellite owned by CNES (FR) in LEO that was launched on Wed, 08 Feb 1967 UTC via a DIAMANT A launch vehicle from the Hamma Guira Space Track Range (HGSTR). 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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Edit Public Description
Identifier
Orbit
Country
FRRelated business
Manufacturer
CNES
Mission
Spacecraft
Bus & Motor
D-1, Unknown motor
Mass
23 kg wet, 23 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 6 hours ago
TLE from 6 hours ago
0 DIADEME 1
1 2674U 67011A 26035.17047323 .00008868 00000-0 97507-3 0 9998
2 2674 39.9167 311.1240 0207563 52.8488 309.1058 14.73133726 70477Epoch: 2026-02-04T04:05Z
TLE epoch observation values (Epoch: 2026-02-04T04:05:28.887Z)
Latitude
0.00003°
Longitude
115.41277°
Altitude
560.375 km
Speed
7.632 km/s
True Right ascension
20h 44m 29s
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
12:10:10
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
799.434 km
Perigee altitude
507.534 km
Semi-major axis
7,031.621 km
Eccentricity
0.02076
Inclination
39.9167°
RAAN
311.124°
Arg. of periapsis
52.8488°
True anomaly
307.22978°
Mean anomaly
309.1058°
Eccentric anomaly
308.17085°
Mean motion
3.68095 °/min
Orbital period
97.8 mins
BSTAR
0.00097507
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Other satellites on launch #11 in the year 1967 (1967-02-08 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.DIADEME 1 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 | 2026-02-04 22:14:16.999Z | 219.058° SW | 2026-02-04 22:16:16.999Z | 166.529° S | 33.652° | 2026-02-04 22:19:16.999Z | 91.982° ESE |
| 5 mins | 2026-02-04 23:57:16.999Z | 264.046° W | 2026-02-04 23:59:16.999Z | 100.096° ESE | 44.803° | 2026-02-05 00:02:16.999Z | 86.579° E |
| 6 mins | 2026-02-05 01:39:16.999Z | 273.763° WNW | 2026-02-05 01:42:16.999Z | 159.548° S | 42.796° | 2026-02-05 01:45:16.999Z | 110.772° ESE |
| 6 mins | 2026-02-05 03:22:16.999Z | 253.203° W | 2026-02-05 03:24:16.999Z | 215.629° SW | 23.843° | 2026-02-05 03:28:16.999Z | 151.204° SSE |
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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