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SYMPHONIE 1, 7578

Orbit data source: Space-Track

SYMPHONIE 1, 7578 is an FR and DE payload satellite in GEO that was launched on Thu, 19 Dec 1974 UTC via a DELTA 2914 launch vehicle from the Air Force Eastern Test Range (AFETR). 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 URL

https://www.satcat.com/sats-embedded/7578?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

7578, 1974-101A

Orbit

GEO

Last TLE update

1 day ago

Origin

German Aerospace Center (Unknown / FGER)

Manufacturer

AELM/CIFAS

Mission

Civil Communications

Bus & Motor

SYMPHONIE, S400

Mass

400 kg wet, 240 kg dry

Launch date (UTC)

1974-12-19 (51 years ago)

Launch vehicle

DELTA 2914

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Hex Cyl + 3 Pan, 3.4 m

Radar Cross Section

5.619 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 1 day ago

0 SYMPHONIE 1
1 07578U 74101A   25198.19006161 -.00000268  00000-0  00000-0 0  9996
2 07578   5.4338 281.2012 0000819 250.9153 139.1381  0.99954871113857

Epoch: 2025-07-17T04:33Z

TLE epoch observation values (Epoch: 2025-07-17T04:33:41.323Z)

Latitude

2.70304°

Longitude

-52.53188°

Altitude

35,877.487 km

Speed

3.071 km/s

True Right ascension

20h 44m 35s

True Declination

2° 42' 01"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

5.39601°

Longitude

1.17981°

Altitude

35,878.144 km

Speed

3.071 km/s

Apparent Right ascension

00h 41m 51s

Apparent Declination

0° 08' 52"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

20:54:02

Azimuth

112.775° SE

Elevation

24.622°

Doppler factor

Orbital elements

Apogee altitude

35,880.187 km

Perigee altitude

35,873.266 km

Semi-major axis

42,254.863 km

Eccentricity

0.00008

Inclination

5.4338°

RAAN

281.2012°

Arg. of periapsis

250.9153°

True anomaly

139.14424°

Mean anomaly

139.1381°

Eccentric anomaly

139.14117°

Mean motion

0.24988 °/min

Orbital period

1,440.7 mins

BSTAR

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Other satellites on launch #101 in the year 1974 (1974-12-19 UTC)

THORAD DELTA 1 R/B(1), 7579 (Decayed)

THORAD DELTA 1 DEB, 7580 (Decayed)

THORAD DELTA 1 DEB, 7581 (Decayed)

THORAD DELTA 1 DEB, 8739 (Decayed)

THORAD DELTA 1 DEB, 8740 (Decayed)

THORAD DELTA 1 R/B(2), 9330

SYMPHONIE 1 Visibility forecast

Observer location: undefined°, undefined°

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.
1440 mins	2025-07-18 08:08:57.141Z	112.791° SE	2025-07-19 08:08:57.141Z	113.752° SE	23.271°	2025-07-19 08:08:57.141Z	113.752° SE

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7578 neighbors

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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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Check out SYMPHONIE 1, 7578 on other resources

View SYMPHONIE 1, 7578 on NASA - NSSDCA Website

View SYMPHONIE 1, 7578 on Heavens-Above

View SYMPHONIE 1, 7578 on Keep Track

View SYMPHONIE 1, 7578 on Celestrak

View SYMPHONIE 1, 7578 on Gunter's Space Page

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