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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Edit Public Description
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: 11 hours ago
TLE from 11 hours ago
0 OSCAR 7
1 07530U 74089B 25337.95869635 -.00000025 00000-0 13163-3 0 9999
2 07530 101.9967 344.1341 0012322 143.1546 284.2228 12.53693971336055Epoch: 2025-12-03T23:00Z
TLE epoch observation values (Epoch: 2025-12-03T23:00:31.364Z)
Latitude
64.50759°
Longitude
-100.34405°
Altitude
1,457.662 km
Speed
7.141 km/s
True Right ascension
21h 11m 14s
True Declination
64° 23' 09"
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
07:54:50
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,456.28 km
Perigee altitude
1,436.997 km
Semi-major axis
7,824.776 km
Eccentricity
0.00123
Inclination
101.9967°
RAAN
344.1341°
Arg. of periapsis
143.1546°
True anomaly
284.08588°
Mean anomaly
284.2228°
Eccentric anomaly
284.15434°
Mean motion
3.13571 °/min
Orbital period
114.81 mins
BSTAR
0.00013163
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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 | 2025-12-04 12:41:24.938Z | 32.826° NE | 2025-12-04 12:48:24.938Z | 96.35° ESE | 33.597° | 2025-12-04 12:55:24.938Z | 165.731° S |
| 13 mins | 2025-12-04 14:35:24.938Z | 0.286° NNE | 2025-12-04 14:41:24.938Z | 296.162° NW | 34.916° | 2025-12-04 14:48:24.938Z | 231.459° WSW |
| 4 mins | 2025-12-04 21:54:24.938Z | 55.449° ENE | 2025-12-04 21:55:24.938Z | 47.954° ENE | 12.222° | 2025-12-04 21:58:24.938Z | 25.7° NE |
| 14 mins | 2025-12-04 23:40:24.938Z | 136.503° SSE | 2025-12-04 23:46:24.938Z | 75.762° E | 39.645° | 2025-12-04 23:54:24.938Z | 351.028° N |
| 12 mins | 2025-12-05 01:34:24.938Z | 210.785° SW | 2025-12-05 01:39:24.938Z | 257.609° W | 27.848° | 2025-12-05 01:46:24.938Z | 320.737° NNW |
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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