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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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: 22 hours ago
TLE from 22 hours ago
0 SECOR 8 (EGRS 8)
1 2520U 66089B 26106.21457505 .00000008 00000-0 32366-2 0 9992
2 2520 89.8516 31.8090 0015080 13.1200 347.0041 8.58894244376636Epoch: 2026-04-16T05:08Z
TLE epoch observation values (Epoch: 2026-04-16T05:08:59.284Z)
Latitude
-0.00001°
Longitude
110.19666°
Altitude
3,681.086 km
Speed
6.3 km/s
True Right ascension
02h 07m 14s
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
09:50:42
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
3,706.706 km
Perigee altitude
3,676.336 km
Semi-major axis
10,069.658 km
Eccentricity
0.00151
Inclination
89.8516°
RAAN
31.809°
Arg. of periapsis
13.12°
True anomaly
346.96517°
Mean anomaly
347.0041°
Eccentric anomaly
346.98464°
Mean motion
2.14793 °/min
Orbital period
167.6 mins
BSTAR
0.0032366
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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. |
|---|---|---|---|---|---|---|---|
| 27 mins | 2026-04-17 04:19:05.828Z | 15.621° NNE | 2026-04-17 04:33:05.828Z | 64.967° ENE | 20.858° | 2026-04-17 04:46:05.828Z | 110.749° ESE |
| 36 mins | 2026-04-17 07:06:05.828Z | 1.555° NNE | 2026-04-17 07:23:05.828Z | 24.923° NE | 44.965° | 2026-04-17 07:42:05.828Z | 186.332° SSW |
| 24 mins | 2026-04-17 09:55:05.828Z | 344.835° N | 2026-04-17 10:06:05.828Z | 305.189° NW | 22.984° | 2026-04-17 10:19:05.828Z | 258.622° W |
| 32 mins | 2026-04-17 17:34:05.828Z | 132.652° SE | 2026-04-17 17:50:05.828Z | 66.003° ENE | 35.497° | 2026-04-17 18:06:05.828Z | 5.674° NNE |
| 35 mins | 2026-04-17 20:19:05.828Z | 203.092° SW | 2026-04-17 20:35:05.828Z | 272.449° WNW | 39.323° | 2026-04-17 20:54:05.828Z | 354.364° 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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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