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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

1 day 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 1 day ago

0 SECOR 8 (EGRS 8)
1 02520U 66089B   25166.07185341 -.00000002  00000-0 -18814-2 0  9995
2 02520  89.8241  33.6440 0014388 317.8050  42.1693  8.58894452350434

Epoch: 2025-06-15T01:43Z

TLE epoch observation values (Epoch: 2025-06-15T01:43:28.134Z)

Latitude

-0.00004°

Longitude

104.17457°

Altitude

3,685.152 km

Speed

6.298 km/s

True Right ascension

02h 14m 34s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-24.15827°

Longitude

-75.75588°

Altitude

3,707.628 km

Speed

6.285 km/s

Apparent Right ascension

13h 18m 54s

Apparent Declination

-31° 36' 25"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

23:30:50

Azimuth

282.374° WNW

Elevation

-66.667°

Doppler factor

Orbital elements

Apogee altitude

3,706.007 km

Perigee altitude

3,677.031 km

Semi-major axis

10,069.656 km

Eccentricity

0.00144

Inclination

89.8241°

RAAN

33.644°

Arg. of periapsis

317.805°

True anomaly

Unknown

Mean anomaly

42.1693°

Eccentric anomaly

Unknown

Mean motion

2.14794 °/min

Orbital period

167.6 mins

BSTAR

-0.0018814

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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.
35 mins	2025-06-16 14:06:07.607Z	144.269° SSE	2025-06-16 14:23:07.607Z	76.34° E	39.294°	2025-06-16 14:41:07.607Z	3.636° NNE
34 mins	2025-06-16 16:54:07.607Z	213.087° SW	2025-06-16 17:10:07.607Z	278.793° WNW	35.445°	2025-06-16 17:28:07.607Z	352.072° N
36 mins	2025-06-17 02:02:07.607Z	7.135° NNE	2025-06-17 02:20:07.607Z	86.675° E	39.24°	2025-06-17 02:38:07.607Z	159.014° S
32 mins	2025-06-17 04:50:07.607Z	352.912° N	2025-06-17 05:06:07.607Z	287.585° WNW	35.732°	2025-06-17 05:22:07.607Z	225.694° WSW
14 mins	2025-06-17 12:37:07.607Z	98.543° ESE	2025-06-17 12:49:07.607Z	54.709° ENE	22.727°	2025-06-17 12:51:07.607Z	46.234° ENE

Authenticating...

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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.