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: 9 hours ago
TLE from 9 hours ago
0 SECOR 8 (EGRS 8)
1 2520U 66089B 25343.10123795 .00000000 00000-0 -92595-3 0 9997
2 2520 89.8364 32.5586 0015321 137.4927 222.7113 8.58893951365630Epoch: 2025-12-09T02:25Z
TLE epoch observation values (Epoch: 2025-12-09T02:25:46.958Z)
Latitude
-0.00001°
Longitude
-81.97781°
Altitude
3,707.239 km
Speed
6.284 km/s
True Right ascension
02h 10m 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
09:59:21
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
3,706.951 km
Perigee altitude
3,676.095 km
Semi-major axis
10,069.66 km
Eccentricity
0.00153
Inclination
89.8364°
RAAN
32.5586°
Arg. of periapsis
137.4927°
True anomaly
222.59238°
Mean anomaly
222.7113°
Eccentric anomaly
222.65182°
Mean motion
2.14793 °/min
Orbital period
167.6 mins
BSTAR
-0.00092595
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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. |
|---|---|---|---|---|---|---|---|
| 36 mins | 2025-12-09 14:23:56.471Z | 6.929° NNE | 2025-12-09 14:41:56.471Z | 85.363° E | 38.925° | 2025-12-09 14:59:56.471Z | 158.294° S |
| 32 mins | 2025-12-09 17:11:56.471Z | 353.397° N | 2025-12-09 17:27:56.471Z | 288.587° WNW | 35.971° | 2025-12-09 17:43:56.471Z | 225.164° WSW |
| 24 mins | 2025-12-10 00:58:56.471Z | 98.984° ESE | 2025-12-10 01:10:56.471Z | 56.011° ENE | 22.449° | 2025-12-10 01:22:56.471Z | 13.414° NNE |
| 37 mins | 2025-12-10 03:35:56.471Z | 172.65° S | 2025-12-10 03:53:56.471Z | 21.716° NNE | 44.995° | 2025-12-10 04:12:56.471Z | 359.137° N |
| 26 mins | 2025-12-10 06:31:56.471Z | 250.571° W | 2025-12-10 06:43:56.471Z | 293.85° NW | 21.374° | 2025-12-10 06:57:56.471Z | 343.874° 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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