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: 4 hours ago
TLE from 4 hours ago
0 OSCAR 7
1 7530U 74089B 25290.15853214 -.00000024 00000-0 14116-3 0 9993
2 7530 101.9989 295.8237 0011958 234.5220 187.7813 12.53692460330067Epoch: 2025-10-17T03:48Z
TLE epoch observation values (Epoch: 2025-10-17T03:48:17.176Z)
Latitude
60.08029°
Longitude
-168.71766°
Altitude
1,468.388 km
Speed
7.13 km/s
True Right ascension
18h 17m 02s
True Declination
59° 56' 42"
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
02:16:05
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,456.002 km
Perigee altitude
1,437.288 km
Semi-major axis
7,824.782 km
Eccentricity
0.0012
Inclination
101.9989°
RAAN
295.8237°
Arg. of periapsis
234.522°
True anomaly
187.76277°
Mean anomaly
187.7813°
Eccentric anomaly
187.77203°
Mean motion
3.1357 °/min
Orbital period
114.81 mins
BSTAR
0.00014116
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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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2025-10-17 11:48:18.854Z | 50.571° ENE | 2025-10-17 11:53:18.854Z | 88.985° E | 18.308° | 2025-10-17 11:58:18.854Z | 129.772° SE |
| 15 mins | 2025-10-17 13:40:18.854Z | 15.931° NNE | 2025-10-17 13:47:18.854Z | 277.222° WNW | 44.827° | 2025-10-17 13:55:18.854Z | 203.439° SW |
| 8 mins | 2025-10-17 15:35:18.854Z | 338.59° N | 2025-10-17 15:38:18.854Z | 313.556° NW | 18.543° | 2025-10-17 15:43:18.854Z | 272.922° WNW |
| 12 mins | 2025-10-17 22:47:18.854Z | 106.614° ESE | 2025-10-17 22:53:18.854Z | 51.566° ENE | 26.389° | 2025-10-17 22:59:18.854Z | 2.552° NNE |
| 14 mins | 2025-10-18 00:38:18.854Z | 176.168° S | 2025-10-18 00:45:18.854Z | 266.264° W | 42.183° | 2025-10-18 00:52:18.854Z | 335.198° 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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