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OPS 7869 (DMSP 4B F1), 3266

Orbit data source: Space-Track

OPS 7869 (DMSP 4B F1), 3266 is a payload satellite owned by SAMSO (US) in SSO that was launched on Thu, 23 May 1968 UTC via a THOR BURNER 2 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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https://www.satcat.com/sats-embedded/3266?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

3266, 1968-042A

Orbit

SSO

Country

Related business

USAF Space and Missile Systems Organization (US)

Manufacturer

RCA/East Windsor

Mission

Non-operational spacecraft

Bus & Motor

DMSP BLOCK 4B, Unknown motor

Mass

79 kg wet, 79 kg dry

Launch date (UTC)

1968-05-23 (58 years ago)

Launch vehicle

THOR BURNER 2

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 19 hours ago

TLE from 19 hours ago

0 OPS 7869 (DMSP 4B F1)
1 03266U 68042A   26079.42536966  .00000076  00000-0  59018-4 0  9992
2 03266  98.5607 273.7488 0052170 196.5224 163.4252 14.15876353900574

Epoch: 2026-03-20T10:12Z

TLE epoch observation values (Epoch: 2026-03-20T10:12:31.938Z)

Latitude

-0.00007°

Longitude

-57.34488°

Altitude

878.358 km

Speed

7.395 km/s

True Right ascension

18h 14m 59s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

10:29:56

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

874.128 km

Perigee altitude

798.851 km

Semi-major axis

7,214.626 km

Eccentricity

0.00522

Inclination

98.5607°

RAAN

273.7488°

Arg. of periapsis

196.5224°

True anomaly

163.59468°

Mean anomaly

163.4252°

Eccentric anomaly

163.51005°

Mean motion

3.54179 °/min

Orbital period

101.64 mins

BSTAR

0.000059018

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Other satellites on launch #42 in the year 1968 (1968-05-23 UTC)

THOR BURNER 2 R/B, 3271

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OPS 7869 (DMSP 4B F1) Visibility forecast

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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.
8 mins	2026-03-21 11:47:23.091Z	118.174° SE	2026-03-21 11:51:23.091Z	69.579° E	23.939°	2026-03-21 11:55:23.091Z	16.055° NNE
8 mins	2026-03-21 13:28:23.091Z	200.77° SSW	2026-03-21 13:31:23.091Z	248.744° W	33.66°	2026-03-21 13:36:23.091Z	329.229° NNW
9 mins	2026-03-22 01:48:23.091Z	13.275° NNE	2026-03-22 01:52:23.091Z	10.554° NNE	44.742°	2026-03-22 01:57:23.091Z	195.073° SSW

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out OPS 7869 (DMSP 4B F1), 3266 on other resources

View OPS 7869 (DMSP 4B F1), 3266 on NASA - NSSDCA Website

View OPS 7869 (DMSP 4B F1), 3266 on Heavens-Above

View OPS 7869 (DMSP 4B F1), 3266 on Keep Track

View OPS 7869 (DMSP 4B F1), 3266 on Celestrak

View OPS 7869 (DMSP 4B F1), 3266 on Gunter's Space Page

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

OPS 7869 (DMSP 4B F1), 3266

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 19 hours ago

TLE from 19 hours ago

TLE epoch observation values (Epoch: 2026-03-20T10:12:31.938Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #42 in the year 1968 (1968-05-23 UTC)

OPS 7869 (DMSP 4B F1) Visibility forecast

Co-orbital & Co-planar RSOs

Check out OPS 7869 (DMSP 4B F1), 3266 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 19 hours ago