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: 1 day ago
TLE from 1 day ago
0 SECOR 8 (EGRS 8)
1 02520U 66089B 26127.17856273 .00000001 00000-0 -62468-3 0 9996
2 02520 89.8523 31.6974 0014834 352.1425 7.9192 8.58893997378437Epoch: 2026-05-07T04:17Z
TLE epoch observation values (Epoch: 2026-05-07T04:17:07.819Z)
Latitude
-0.00004°
Longitude
102.38639°
Altitude
3,681.088 km
Speed
6.3 km/s
True Right ascension
02h 06m 47s
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
21:29:18
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
3,706.46 km
Perigee altitude
3,676.585 km
Semi-major axis
10,069.66 km
Eccentricity
0.00148
Inclination
89.8523°
RAAN
31.6974°
Arg. of periapsis
352.1425°
True anomaly
7.94266°
Mean anomaly
7.9192°
Eccentric anomaly
7.93093°
Mean motion
2.14793 °/min
Orbital period
167.6 mins
BSTAR
-0.00062468
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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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2026-05-08 14:12:14.033Z | 58.048° ENE | 2026-05-08 14:17:14.033Z | 41.525° NE | 11.682° | 2026-05-08 14:22:14.033Z | 25.086° NE |
| 34 mins | 2026-05-08 16:40:14.033Z | 146.288° SSE | 2026-05-08 16:57:14.033Z | 71.346° E | 40.276° | 2026-05-08 17:14:14.033Z | 3.594° NNE |
| 33 mins | 2026-05-08 19:28:14.033Z | 216.492° SW | 2026-05-08 19:44:14.033Z | 282.34° WNW | 34.131° | 2026-05-08 20:01:14.033Z | 350.645° N |
| 35 mins | 2026-05-09 04:36:14.033Z | 7.378° NNE | 2026-05-09 04:53:14.033Z | 82.836° E | 40.246° | 2026-05-09 05:11:14.033Z | 161.061° S |
| 32 mins | 2026-05-09 07:23:14.033Z | 353.158° N | 2026-05-09 07:39:14.033Z | 290.576° WNW | 34.568° | 2026-05-09 07:55:14.033Z | 228.683° WSW |
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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