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

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ISO8601 Format

Identifier

7578, 1974-101A

Orbit

GEO

Country

Unknown / FGER

Related business

German Aerospace Center (DE)

Manufacturer

AELM/CIFAS

Mission

Spacecraft

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

Unknown

Radar Cross Section

Large (>1 m²)

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Last TLE update: 8 hours ago

TLE from 8 hours ago

0 SYMPHONIE 1
1 07578U 74101A   25289.59567291  .00000089  00000-0  00000-0 0  9997
2 07578   5.2042 280.0853 0003891 319.7189 200.9275  0.99956764114766

Epoch: 2025-10-16T14:17Z

TLE epoch observation values (Epoch: 2025-10-16T14:17:46.139Z)

Latitude

1.70626°

Longitude

-159.01535°

Altitude

35,889.769 km

Speed

3.07 km/s

True Right ascension

05h 23m 07s

True Declination

1° 42' 16"

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

17:01:13

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,892.635 km

Perigee altitude

35,859.753 km

Semi-major axis

42,254.331 km

Eccentricity

0.00039

Inclination

5.2042°

RAAN

280.0853°

Arg. of periapsis

319.7189°

True anomaly

200.91158°

Mean anomaly

200.9275°

Eccentric anomaly

200.91954°

Mean motion

0.24988 °/min

Orbital period

1,440.68 mins

BSTAR

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

THORAD DELTA 1 DEB, 7581 (Decayed)

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

THORAD DELTA 1 DEB, 7580 (Decayed)

THORAD DELTA 1 DEB, 8739 (Decayed)

THORAD DELTA 1 R/B(2), 9330

THORAD DELTA 1 DEB, 8740 (Decayed)

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SYMPHONIE 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.
1440 mins	2025-10-16 22:18:57.828Z	241.415° WSW	2025-10-17 09:38:57.828Z	249.882° W	20.399°	2025-10-17 22:18:57.828Z	242.314° WSW

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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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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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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.

SYMPHONIE 1, 7578

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 8 hours ago

TLE from 8 hours ago

TLE epoch observation values (Epoch: 2025-10-16T14:17:46.139Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

SYMPHONIE 1 Visibility forecast

7578 neighbors

Co-orbital & Co-planar RSOs

Check out SYMPHONIE 1, 7578 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 8 hours ago