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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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<iframe src="https://www.satcat.com/sats-embedded/2520?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/2520?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

2520, 1966-089B

Orbit

LEO

Last TLE update

3 days ago

Origin

United States Army (US)

Manufacturer

ITT

Mission

Defense Geodetic

Bus & Motor

SECOR, Unknown motor

Mass

18 kg wet, 18 kg dry

Launch date (UTC)

1966-10-05 (59 years ago)

Launch vehicle

ATLAS SLV-3 AGENA D

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box, 0.36 m

Radar Cross Section

0.095 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 3 days ago

0 SECOR 8 (EGRS 8)
1 02520U 66089B   25180.04784111  .00000002  00000-0  98453-5 0  9996
2 02520  89.8228  33.5539 0014289 303.1137  56.8342  8.58894574351632

Epoch: 2025-06-29T01:08Z

TLE epoch observation values (Epoch: 2025-06-29T01:08:53.471Z)

Latitude

-0.00007°

Longitude

98.9535°

Altitude

3,688.024 km

Speed

6.296 km/s

True Right ascension

02h 14m 12s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

63.30652°

Longitude

99.28558°

Altitude

3,712.383 km

Speed

6.288 km/s

Apparent Right ascension

02h 07m 24s

Apparent Declination

27° 32' 59"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

13:59:52

Azimuth

358.193° N

Elevation

-22.511°

Doppler factor

Orbital elements

Apogee altitude

3,705.907 km

Perigee altitude

3,677.13 km

Semi-major axis

10,069.655 km

Eccentricity

0.00143

Inclination

89.8228°

RAAN

33.5539°

Arg. of periapsis

303.1137°

True anomaly

Unknown

Mean anomaly

56.8342°

Eccentric anomaly

Unknown

Mean motion

2.14794 °/min

Orbital period

167.6 mins

BSTAR

0.0000098453

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Other satellites on launch #89 in the year 1966 (1966-10-05 UTC)

OPS 1920, 2481

SECOR 8 (EGRS 8) Visibility forecast

Observer location: undefined°, undefined°

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.
37 mins	2025-07-02 02:35:49.575Z	359.551° N	2025-07-02 02:54:49.575Z	268.54° W	44.403°	2025-07-02 03:12:49.575Z	195.682° SSW
20 mins	2025-07-02 05:26:49.575Z	341.622° N	2025-07-02 05:36:49.575Z	306.493° NW	18.691°	2025-07-02 05:46:49.575Z	272.132° WNW
5 mins	2025-07-02 10:38:49.575Z	45.963° ENE	2025-07-02 10:40:49.575Z	39.391° NE	10.691°	2025-07-02 10:43:49.575Z	29.61° NE
34 mins	2025-07-02 13:03:49.575Z	142.77° SSE	2025-07-02 13:19:49.575Z	74.897° E	39.291°	2025-07-02 13:37:49.575Z	3.506° NNE
34 mins	2025-07-02 15:50:49.575Z	213.345° SW	2025-07-02 16:06:49.575Z	279.891° WNW	35.49°	2025-07-02 16:24:49.575Z	352.344° N
35 mins	2025-07-03 00:58:49.575Z	7.358° NNE	2025-07-03 01:15:49.575Z	78.949° E	39.212°	2025-07-03 01:33:49.575Z	157.859° S

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Check out SECOR 8 (EGRS 8), 2520 on other resources

View SECOR 8 (EGRS 8), 2520 on NASA - NSSDCA Website

View SECOR 8 (EGRS 8), 2520 on Heavens-Above

View SECOR 8 (EGRS 8), 2520 on Keep Track

View SECOR 8 (EGRS 8), 2520 on Celestrak

View SECOR 8 (EGRS 8), 2520 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.