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
Unknown
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 5 hours ago
TLE from 5 hours ago
0 OSCAR 7
1 7530U 74089B 26148.53638381 -.00000026 00000-0 12579-3 0 9997
2 7530 101.9905 161.5779 0012367 166.9610 1.2033 12.53697769358051Epoch: 2026-05-28T12:52Z
TLE epoch observation values (Epoch: 2026-05-28T12:52:23.561Z)
Latitude
11.53132°
Longitude
-95.12877°
Altitude
1,441.205 km
Speed
7.146 km/s
True Right ascension
22h 56m 11s
True Declination
11° 28' 12"
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
03:40:37
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,456.299 km
Perigee altitude
1,436.946 km
Semi-major axis
7,824.759 km
Eccentricity
0.00124
Inclination
101.9905°
RAAN
161.5779°
Arg. of periapsis
166.961°
True anomaly
1.20628°
Mean anomaly
1.2033°
Eccentric anomaly
1.20479°
Mean motion
3.13572 °/min
Orbital period
114.81 mins
BSTAR
0.00012579
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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. |
|---|---|---|---|---|---|---|---|
| 14 mins | 2026-05-28 23:35:54.030Z | 125.829° SE | 2026-05-28 23:42:54.030Z | 58.664° ENE | 34.06° | 2026-05-28 23:49:54.030Z | 356.079° N |
| 14 mins | 2026-05-29 01:28:54.030Z | 193.642° SSW | 2026-05-29 01:34:54.030Z | 251.182° W | 34.709° | 2026-05-29 01:42:54.030Z | 328.951° NNW |
| 14 mins | 2026-05-29 13:30:54.030Z | 26.494° NE | 2026-05-29 13:36:54.030Z | 87.17° E | 41.891° | 2026-05-29 13:44:54.030Z | 185.157° SSW |
| 12 mins | 2026-05-29 15:23:54.030Z | 353.829° N | 2026-05-29 15:29:54.030Z | 298.73° NW | 26.27° | 2026-05-29 15:35:54.030Z | 249.267° W |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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