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DIADEME 2, 2680

Orbit data source: Space-Track

DIADEME 2, 2680 is a payload satellite owned by CNES (FR) in LEO that was launched on Wed, 15 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/2680?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

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https://www.satcat.com/sats-embedded/2680?theme=dark&initialShowStats=false

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Identifier

2680, 1967-014A

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)

1967-02-15 (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 2
1  2680U 67014A   26133.54205157  .00000736  00000-0  31979-3 0  9996
2  2680  39.4405 252.5111 0700062 205.5910 150.8542 13.41980679871310

Epoch: 2026-05-13T13:00Z

TLE epoch observation values (Epoch: 2026-05-13T13:00:33.255Z)

Latitude

-0.00004°

Longitude

-173.92809°

Altitude

1,566.552 km

Speed

6.863 km/s

True Right ascension

16h 50m 02s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow 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

09:18:42

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,628.07 km

Perigee altitude

580.442 km

Semi-major axis

7,482.393 km

Eccentricity

0.07001

Inclination

39.4405°

RAAN

252.5111°

Arg. of periapsis

205.591°

True anomaly

154.48074°

Mean anomaly

150.8542°

Eccentric anomaly

152.69423°

Mean motion

3.35338 °/min

Orbital period

107.35 mins

BSTAR

0.00031979

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Other satellites on launch #14 in the year 1967 (1967-02-15 UTC)

DIAMANT DEB, 15531 (Decayed)

DIAMANT DEB, 18929 (Decayed)

DIAMANT DEB, 3589 (Decayed)

DIAMANT DEB, 2684

DIAMANT DEB, 2685

DIAMANT DEB *, 14505 (Decayed)

DIAMANT DEB, 3935 (Decayed)

DIAMANT DEB *, 18911 (Decayed)

DIAMANT R/B, 2682

DIAMANT DEB, 2681 (Decayed)

DIAMANT DEB, 18928 (Decayed)

DIAMANT DEB, 14633 (Decayed)

DIAMANT DEB, 2683 (Decayed)

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DIADEME 2 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	2026-05-14 08:46:01.617Z	167.612° S	2026-05-14 08:51:01.617Z	137.275° SSE	15.735°	2026-05-14 08:56:01.617Z	105.417° ESE
16 mins	2026-05-14 10:37:01.617Z	211.87° SW	2026-05-14 10:45:01.617Z	142.383° SSE	35.014°	2026-05-14 10:53:01.617Z	81.957° E
16 mins	2026-05-14 12:30:01.617Z	249.194° W	2026-05-14 12:39:01.617Z	136.878° SSE	44.126°	2026-05-14 12:46:01.617Z	82.768° E
15 mins	2026-05-14 14:25:01.617Z	272.303° WNW	2026-05-14 14:33:01.617Z	144.472° SSE	44.882°	2026-05-14 14:40:01.617Z	97.948° ESE
12 mins	2026-05-14 16:20:01.617Z	276.977° WNW	2026-05-14 16:26:01.617Z	219.185° SW	38.776°	2026-05-14 16:32:01.617Z	132.219° SE
6 mins	2026-05-14 18:16:01.617Z	251.584° W	2026-05-14 18:19:01.617Z	221.611° SW	15.972°	2026-05-14 18:22:01.617Z	189.718° SSW

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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 2, 2680 on other resources

View DIADEME 2, 2680 on NASA - NSSDCA Website

View DIADEME 2, 2680 on Heavens-Above

View DIADEME 2, 2680 on Keep Track

View DIADEME 2, 2680 on Celestrak

View DIADEME 2, 2680 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 2, 2680

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: 2026-05-13T13:00:33.255Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #14 in the year 1967 (1967-02-15 UTC)

DIADEME 2 Visibility forecast

Co-orbital & Co-planar RSOs

Check out DIADEME 2, 2680 on other resources

Documentation

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