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OPS 3662 (VELA 3), 836

Orbit data source: Space-Track

OPS 3662 (VELA 3), 836 is a payload satellite owned by USAF SSD (US) in HEO that was launched on Fri, 17 Jul 1964 UTC via an ATLAS AGENA D launch vehicle from the Air Force Eastern Test Range (AFETR). 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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https://www.satcat.com/sats-embedded/836?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

836, 1964-040A

Orbit

HEO

Last TLE update

in 2 days

Origin

United States Space Force (US)

Manufacturer

TRW

Mission

Defense Early Warn

Bus & Motor

VELA, BE-3

Mass

~227 kg wet, 125 kg dry

Launch date (UTC)

1964-07-17 (61 years ago)

Launch vehicle

ATLAS AGENA D

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Poly, 1.4 m

Radar Cross Section

2.240 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from in 2 days

0 OPS 3662 (VELA 3)
1   836U 64040A   25131.51619140  .00000681  00000-0  00000+0 0  9994
2   836  50.9277 126.8977 4630963 292.2461   0.3834  0.23919370 53129

Epoch: 2025-05-11T12:23Z

Definitive object data (Epoch: 2025-05-11T12:23:18.936Z)

Latitude

-45.08517°

Longitude

16.33707°

Altitude

52,075.421 km

Speed

3.163 km/s

True Right ascension

04h 46m 50s

True Declination

-45° 03' 51"

Sunlit

Object was in daylight at TLE epoch

Visualization TLE readout

Latitude

37.92286°

Longitude

-148.10276°

Altitude

149,649.326 km

Speed

1.214 km/s

Apparent Right ascension

17h 45m 51s

Apparent Declination

35° 43' 14"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

04:23:18

Azimuth

342.989° N

Elevation

-12.012°

Doppler factor

Orbital elements

Apogee altitude

154,011.171 km

Perigee altitude

52,478.968 km

Semi-major axis

109,623.207 km

Eccentricity

0.4630963

Inclination

50.9277°

RAAN

126.8977°

Arg. of periapsis

292.2461°

True anomaly

1.17876°

Mean anomaly

0.3834°

Eccentric anomaly

0.71408°

Mean motion

0.0598 °/min

BSTAR

Unknown

Orbital period

6020.23 mins

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Other satellites on launch #40 in the year 1964 (1964-07-17 UTC)

OPS 3674 (VELA 4), 837

ERS 13, 838 (Decayed)

OPS 3662 (VELA 3) 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.
794 mins	2025-05-10 03:49:12.903Z	61.62° ENE	2025-05-10 10:53:12.903Z	171.685° S	42.971°	2025-05-10 17:03:12.903Z	269.303° W

Authenticating...

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Check out OPS 3662 (VELA 3), 836 on other resources

View OPS 3662 (VELA 3), 836 on NASA - NSSDCA Website

View OPS 3662 (VELA 3), 836 on Heavens-Above

View OPS 3662 (VELA 3), 836 on Keep Track

View OPS 3662 (VELA 3), 836 on Celestrak

View OPS 3662 (VELA 3), 836 on Gunter's Space Page

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