OSCAR 7, 7530
Orbit data source: Space-Track
OSCAR 7, 7530 is a payload satellite owned by AMSAT-NA (US) in SSO that was launched on Fri, 15 Nov 1974 UTC via a DELTA 2310 launch vehicle from the Air Force Western Test Range (AFWTR). 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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7530 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
AMSAT-NA
Mission
Partially operational spacecraft
Bus & Motor
AMSAT PHASE 2, Unknown motor
Mass
29 kg wet, 29 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
OCT CYL, 1.1 m
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 12 hours ago
TLE from 12 hours ago
0 OSCAR 7
1 07530U 74089B 26258.96435256 -.00000050 00000-0 -20302-4 0 9994
2 07530 101.9919 273.1600 0012031 319.3965 154.2667 12.53699626371897Epoch: 2026-09-15T23:08Z
TLE epoch observation values (Epoch: 2026-09-15T23:08:40.061Z)
Latitude
63.66259°
Longitude
136.34545°
Altitude
1,468.316 km
Speed
7.131 km/s
True Right ascension
07h 53m 44s
True Declination
63° 32' 17"
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
03:36:48
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,456.029 km
Perigee altitude
1,437.201 km
Semi-major axis
7,824.752 km
Eccentricity
0.0012
Inclination
101.9919°
RAAN
273.16°
Arg. of periapsis
319.3965°
True anomaly
154.32648°
Mean anomaly
154.2667°
Eccentric anomaly
154.2966°
Mean motion
3.13572 °/min
Orbital period
114.81 mins
BSTAR
-0.000020302
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Other satellites on launch #89 in the year 1974 (1974-11-15 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.OSCAR 7 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. |
|---|---|---|---|---|---|---|---|
| 12 mins | 2026-09-16 12:36:38.896Z | 46.963° ENE | 2026-09-16 12:42:38.896Z | 98.278° ESE | 25.092° | 2026-09-16 12:48:38.896Z | 146.095° SSE |
| 15 mins | 2026-09-16 14:28:38.896Z | 11.594° NNE | 2026-09-16 14:35:38.896Z | 289.654° WNW | 69.638° | 2026-09-16 14:43:38.896Z | 211.599° SW |
| 7 mins | 2026-09-16 16:23:38.896Z | 337.203° NNW | 2026-09-16 16:26:38.896Z | 313.81° NW | 16.128° | 2026-09-16 16:30:38.896Z | 283.159° WNW |
| 12 mins | 2026-09-16 23:35:38.896Z | 113.107° SE | 2026-09-16 23:40:38.896Z | 65.072° ENE | 35.827° | 2026-09-16 23:47:38.896Z | 0.058° NNE |
| 14 mins | 2026-09-17 01:26:38.896Z | 184.94° SSW | 2026-09-17 01:33:38.896Z | 262.308° W | 52.965° | 2026-09-17 01:40:38.896Z | 331.05° NNW |
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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