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, 0.2 m
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 10 hours ago
TLE from 10 hours ago
0 OSCAR 7
1 07530U 74089B 26207.65539451 -.00000025 00000-0 13291-3 0 9995
2 07530 101.9910 221.3137 0012589 57.0910 60.8894 12.53698736365463Epoch: 2026-07-26T15:43Z
TLE epoch observation values (Epoch: 2026-07-26T15:43:46.085Z)
Latitude
59.72747°
Longitude
-117.75071°
Altitude
1,454.226 km
Speed
7.143 km/s
True Right ascension
04h 10m 09s
True Declination
59° 35' 27"
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
15:06:01
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,456.469 km
Perigee altitude
1,436.768 km
Semi-major axis
7,824.755 km
Eccentricity
0.00126
Inclination
101.991°
RAAN
221.3137°
Arg. of periapsis
57.091°
True anomaly
61.01553°
Mean anomaly
60.8894°
Eccentric anomaly
60.95246°
Mean motion
3.13572 °/min
Orbital period
114.81 mins
BSTAR
0.00013291
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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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2026-07-27 02:43:26.181Z | 239.264° WSW | 2026-07-27 02:47:26.181Z | 269.853° W | 14.796° | 2026-07-27 02:51:26.181Z | 300.302° NW |
| 13 mins | 2026-07-27 12:49:26.181Z | 41.535° NE | 2026-07-27 12:55:26.181Z | 97.051° ESE | 28.484° | 2026-07-27 13:02:26.181Z | 157.746° S |
| 13 mins | 2026-07-27 14:42:26.181Z | 4.72° NNE | 2026-07-27 14:48:26.181Z | 295.314° NW | 39.347° | 2026-07-27 14:55:26.181Z | 223.034° SW |
| 14 mins | 2026-07-27 23:47:26.181Z | 127.612° SE | 2026-07-27 23:54:26.181Z | 53.07° ENE | 35.227° | 2026-07-28 00:01:26.181Z | 354.22° N |
| 7 mins | 2026-07-28 01:40:26.181Z | 197.518° SSW | 2026-07-28 01:46:26.181Z | 256.483° W | 33.027° | 2026-07-28 01:47:26.181Z | 272.862° WNW |
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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