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OPS 3151, 9803

Orbit data source: Space-Track

OPS 3151, 9803 is a payload satellite owned by SAMSO (US) in GEO that was launched on Sun, 06 Feb 1977 UTC via a TITAN IIIC 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/9803?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

9803, 1977-007A

Orbit

GEO

Last TLE update

21 hours ago

Origin

USAF Space and Missile Systems Organization (US)

Manufacturer

TRW

Mission

Defense Early Warn

Bus & Motor

DSP P2, MRE-4

Mass

1,040 kg wet, ~980 kg dry

Launch date (UTC)

1977-02-06 (48 years ago)

Launch vehicle

TITAN IIIC

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl + 4 Pan, Unknown HBR

Radar Cross Section

27.525 m²

Expand to show TLE details & history

TLE from 21 hours ago

0 OPS 3151
1 09803U 77007A   25186.46797024 -.00000026  00000-0  00000-0 0  9991
2 09803   5.6131 287.3310 0078249  30.5346   6.0807  0.97529059 21272

Epoch: 2025-07-05T11:13Z

TLE epoch observation values (Epoch: 2025-07-05T11:13:52.628Z)

Latitude

3.34266°

Longitude

-128.26999°

Altitude

36,238.402 km

Speed

3.07 km/s

True Right ascension

21h 35m 37s

True Declination

3° 20' 22"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-1.74535°

Longitude

177.34206°

Altitude

36,347.404 km

Speed

3.062 km/s

Apparent Right ascension

17h 42m 31s

Apparent Declination

-7° 54' 37"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

20:07:20

Azimuth

223.41° SW

Elevation

31.649°

Doppler factor

Orbital elements

Apogee altitude

36,910.581 km

Perigee altitude

36,238.381 km

Semi-major axis

42,952.618 km

Eccentricity

0.00782

Inclination

5.6131°

RAAN

287.331°

Arg. of periapsis

30.5346°

True anomaly

Unknown

Mean anomaly

6.0807°

Eccentric anomaly

Unknown

Mean motion

0.24381 °/min

Orbital period

1,476.54 mins

BSTAR

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9803 neighbors

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Other satellites on launch #7 in the year 1977 (1977-02-06 UTC)

TITAN 3C R/B(1), 9808 (Decayed)

TITAN 3C TRANSTAGE R/B, 9855

OPS 3151 DEB, 9856

OPS 3151 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.
1440 mins	2025-07-06 08:09:32.818Z	223.397° SW	2025-07-06 15:09:32.818Z	230.654° WSW	31.23°	2025-07-07 08:09:32.818Z	232.873° WSW

Authenticating...

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Check out OPS 3151, 9803 on other resources

View OPS 3151, 9803 on NASA - NSSDCA Website

View OPS 3151, 9803 on Heavens-Above

View OPS 3151, 9803 on Keep Track

View OPS 3151, 9803 on Celestrak

View OPS 3151, 9803 on Gunter's Space Page

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