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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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<iframe src="https://www.satcat.com/sats-embedded/2674?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/2674?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

2674, 1967-011A

Orbit

LEO

Country

Related business

National Center for Space Studies, Paris (FR)

Manufacturer

CNES

Mission

Spacecraft

Bus & Motor

D-1, Unknown motor

Mass

23 kg wet, 23 kg dry

Launch date (UTC)

1967-02-08 (59 years ago)

Launch vehicle

DIAMANT A

Launch site

Hamma Guira Space Track Range (HGSTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 12 hours ago

TLE from 12 hours ago

0 DIADEME 1
1 02674U 67011A   26095.01335966  .00007925  00000-0  85917-3 0  9995
2 02674  39.9171 344.7944 0204674 105.6660 256.6806 14.74111755 79301

Epoch: 2026-04-05T00:19Z

TLE epoch observation values (Epoch: 2026-04-05T00:19:14.274Z)

Latitude

0.00003°

Longitude

146.66008°

Altitude

683.31 km

Speed

7.498 km/s

True Right ascension

22h 59m 10s

True Declination

0° 00' 00"

Sunlit

Object was in daylight 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

18:25:50

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

794.231 km

Perigee altitude

506.52 km

Semi-major axis

7,028.513 km

Eccentricity

0.02047

Inclination

39.9171°

RAAN

344.7944°

Arg. of periapsis

105.666°

True anomaly

254.41227°

Mean anomaly

256.6806°

Eccentric anomaly

255.54503°

Mean motion

3.68339 °/min

Orbital period

97.74 mins

BSTAR

0.00085917

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Other satellites on launch #11 in the year 1967 (1967-02-08 UTC)

DIAMANT R/B, 2671

DIAMANT DEB, 2688 (Decayed)

DIAMANT DEB, 2676 (Decayed)

DIAMANT DEB, 2691 (Decayed)

DIADEME 1 DEB, 3742 (Decayed)

DIAMANT DEB, 2675 (Decayed)

DIAMANT DEB, 2900 (Decayed)

DIADEME 1 DEB *, 4009 (Decayed)

DIAMANT DEB, 2690 (Decayed)

DIAMANT DEB, 2990 (Decayed)

DIAMANT DEB, 2692 (Decayed)

DIAMANT DEB, 2689 (Decayed)

DIAMANT DEB, 2677 (Decayed)

DIAMANT DEB, 2673 (Decayed)

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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.
6 mins	2026-04-05 20:03:01.042Z	214.951° SW	2026-04-05 20:06:01.042Z	160.498° S	28.59°	2026-04-05 20:09:01.042Z	96.85° ESE
6 mins	2026-04-05 21:46:01.042Z	256.286° W	2026-04-05 21:49:01.042Z	119.58° SE	44.007°	2026-04-05 21:52:01.042Z	84.832° E
6 mins	2026-04-05 23:29:01.042Z	274.306° WNW	2026-04-05 23:32:01.042Z	117.698° SE	42.481°	2026-04-05 23:35:01.042Z	101.653° ESE
5 mins	2026-04-06 01:12:01.042Z	255.834° W	2026-04-06 01:14:01.042Z	206.801° SW	28.115°	2026-04-06 01:17:01.042Z	144.56° SSE

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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 DIADEME 1, 2674 on other resources

View DIADEME 1, 2674 on NASA - NSSDCA Website

View DIADEME 1, 2674 on Heavens-Above

View DIADEME 1, 2674 on Keep Track

View DIADEME 1, 2674 on Celestrak

View DIADEME 1, 2674 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

DIADEME 1, 2674

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 12 hours ago

TLE from 12 hours ago

TLE epoch observation values (Epoch: 2026-04-05T00:19:14.274Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #11 in the year 1967 (1967-02-08 UTC)

DIADEME 1 Visibility forecast

Co-orbital & Co-planar RSOs

Check out DIADEME 1, 2674 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 12 hours ago