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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

3 days ago

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 3 days ago

0 OPS 3662 (VELA 3)
1 00836U 64040A   25185.82399355  .00000452  00000-0  00000-0 0  9997
2 00836  51.2590 125.8423 4639781 289.8248   0.6900  0.23919938 10162

Epoch: 2025-07-04T19:46Z

TLE epoch observation values (Epoch: 2025-07-04T19:46:33.042Z)

Latitude

-46.33609°

Longitude

-150.91298°

Altitude

52,495.055 km

Speed

3.148 km/s

True Right ascension

04h 35m 10s

True Declination

-46° 18' 55"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

4.00205°

Longitude

82.65953°

Altitude

101,003.452 km

Speed

1.946 km/s

Apparent Right ascension

20h 12m 52s

Apparent Declination

1° 54' 42"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

18:57:05

Azimuth

150.815° SSE

Elevation

48.283°

Doppler factor

Orbital elements

Apogee altitude

154,105.289 km

Perigee altitude

52,381.37 km

Semi-major axis

109,621.467 km

Eccentricity

0.46398

Inclination

51.259°

RAAN

125.8423°

Arg. of periapsis

289.8248°

True anomaly

Unknown

Mean anomaly

0.69°

Eccentric anomaly

Unknown

Mean motion

0.0598 °/min

Orbital period

6,020.09 mins

BSTAR

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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.
358 mins	2025-07-08 06:51:37.931Z	150.82° SSE	2025-07-08 07:30:37.931Z	164.368° S	37.077°	2025-07-08 12:49:37.931Z	235.891° WSW

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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.