Showing default

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.

Loading next visibility...

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/836?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/836?theme=dark&initialShowStats=false

Optional Secondary NORAD IDs

Max 10 NORAD IDs; Separated by commas

Initial load time (optional)

ISO8601 Format

TLE date request (optional)

ISO8601 Format

Identifier

836, 1964-040A

Orbit

HEO

Last TLE update

in 3 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 3 days

0 OPS 3662 (VELA 3)
1   836U 64040A   25118.98218664  .00000638  00000-0  00000+0 0  9998
2   836  50.8410 127.1506 4640902 292.7880   0.1915  0.23902827 53096

Epoch: 2025-04-28T23:34Z

Definitive object data (Epoch: 2025-04-28T23:34:20.925Z)

Latitude

-45.00309°

Longitude

-138.78303°

Altitude

52,037.298 km

Speed

3.165 km/s

True Right ascension

04h 47m 58s

True Declination

-44° 58' 56"

Sunlit

Object was in daylight at TLE epoch

Visualization TLE readout

Latitude

44.89406°

Longitude

-28.59426°

Altitude

119,838.609 km

Speed

1.638 km/s

Apparent Right ascension

12h 13m 27s

Apparent Declination

42° 08' 13"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

01:42:06

Azimuth

16.321° NNE

Elevation

-5.523°

Doppler factor

Orbital elements

Apogee altitude

154,194.172 km

Perigee altitude

52,397.118 km

Semi-major axis

109,673.782 km

Eccentricity

0.4640902

Inclination

50.841°

RAAN

127.1506°

Arg. of periapsis

292.788°

True anomaly

0.59062°

Mean anomaly

0.1915°

Eccentric anomaly

0.35733°

Mean motion

0.05976 °/min

BSTAR

Unknown

Orbital period

6024.4 mins

Loading maneuver chart data...

Loading SW <> Apogee altitude chart data...

Loading historical data...

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.
1155 mins	2025-04-25 21:33:29.772Z	37.13° NE	2025-04-26 07:21:29.772Z	357.72° N	44.455°	2025-04-26 16:48:29.772Z	323.802° NNW

Authenticating...

Click to sort rows by Secondary header in ascending order	Click to sort rows by Secondary name header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Owner header in ascending order	Click to sort rows by Obj. Type header in ascending order	Click to sort rows by Miss dist. header in ascending order	Click to sort rows by Rel. speed header in ascending order	Click to sort rows by Apr. angle header in ascending order	Click to sort rows by TCA header in ascending order

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.