SECOR 8 (EGRS 8), 2520
Orbit data source: Space-Track
SECOR 8 (EGRS 8), 2520 is an American payload satellite in LEO that was launched on Wed, 05 Oct 1966 UTC via an ATLAS SLV-3 AGENA D 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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2520 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
ITT
Mission
Spacecraft
Bus & Motor
SECOR, Unknown motor
Mass
18 kg wet, 18 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 days ago
TLE from 4 days ago
0 SECOR 8 (EGRS 8)
1 02520U 66089B 25309.67526971 .00000005 00000-0 17097-2 0 9991
2 02520 89.8413 32.7544 0015029 170.3327 189.7815 8.58894221362769Epoch: 2025-11-05T16:12Z
TLE epoch observation values (Epoch: 2025-11-05T16:12:23.302Z)
Latitude
-0.00008°
Longitude
104.51277°
Altitude
3,710.805 km
Speed
6.282 km/s
True Right ascension
02h 11m 01s
True Declination
0° 00' 00"
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
09:00:21
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
3,706.655 km
Perigee altitude
3,676.387 km
Semi-major axis
10,069.658 km
Eccentricity
0.0015
Inclination
89.8413°
RAAN
32.7544°
Arg. of periapsis
170.3327°
True anomaly
189.7523°
Mean anomaly
189.7815°
Eccentric anomaly
189.76689°
Mean motion
2.14793 °/min
Orbital period
167.6 mins
BSTAR
0.0017097
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Other satellites on launch #89 in the year 1966 (1966-10-05 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.SECOR 8 (EGRS 8) 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. |
|---|---|---|---|---|---|---|---|
| 35 mins | 2025-11-09 16:02:02.822Z | 8.477° NNE | 2025-11-09 16:19:02.822Z | 76.836° E | 35.515° | 2025-11-09 16:37:02.822Z | 149.523° SSE |
| 34 mins | 2025-11-09 18:50:02.822Z | 354.968° N | 2025-11-09 19:06:02.822Z | 289.387° WNW | 39.19° | 2025-11-09 19:24:02.822Z | 215.489° SW |
| 4 mins | 2025-11-09 21:44:02.822Z | 325.56° NNW | 2025-11-09 21:46:02.822Z | 318.974° NNW | 10.542° | 2025-11-09 21:48:02.822Z | 312.402° NW |
| 21 mins | 2025-11-10 02:40:02.822Z | 86.861° E | 2025-11-10 02:50:02.822Z | 51.934° ENE | 18.794° | 2025-11-10 03:01:02.822Z | 14.369° NNE |
| 36 mins | 2025-11-10 05:14:02.822Z | 164.436° S | 2025-11-10 05:32:02.822Z | 79.872° E | 44.455° | 2025-11-10 05:50:02.822Z | 0.452° NNE |
| 30 mins | 2025-11-10 08:07:02.822Z | 237.466° WSW | 2025-11-10 08:21:02.822Z | 289.22° WNW | 25.568° | 2025-11-10 08:37:02.822Z | 347.794° N |
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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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