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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3266 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
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)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 10 hours ago
TLE from 10 hours ago
0 OPS 7869 (DMSP 4B F1)
1 3266U 68042A 25294.74915001 .00000171 00000-0 10709-3 0 9995
2 3266 98.5636 129.8904 0051409 267.8436 91.6851 14.15826587879397Epoch: 2025-10-21T17:58Z
TLE epoch observation values (Epoch: 2025-10-21T17:58:46.560Z)
Latitude
-0.00007°
Longitude
-170.23623°
Altitude
843.697 km
Speed
7.43 km/s
True Right ascension
08h 39m 33s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
22:37:03
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
873.749 km
Perigee altitude
799.568 km
Semi-major axis
7,214.796 km
Eccentricity
0.00514
Inclination
98.5636°
RAAN
129.8904°
Arg. of periapsis
267.8436°
True anomaly
92.27383°
Mean anomaly
91.6851°
Eccentric anomaly
91.97948°
Mean motion
3.54166 °/min
Orbital period
101.65 mins
BSTAR
0.00010709
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Other satellites on launch #42 in the year 1968 (1968-05-23 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2025-10-22 12:45:13.479Z | 150.122° SSE | 2025-10-22 12:50:13.479Z | 56.478° ENE | 41.081° | 2025-10-22 12:55:13.479Z | 354.161° N |
| 5 mins | 2025-10-22 14:29:13.479Z | 248.52° W | 2025-10-22 14:31:13.479Z | 274.27° WNW | 16.334° | 2025-10-22 14:34:13.479Z | 307.623° NW |
| 8 mins | 2025-10-23 01:07:13.479Z | 44.702° NE | 2025-10-23 01:11:13.479Z | 103.794° ESE | 25.313° | 2025-10-23 01:15:13.479Z | 152.575° SSE |
| 9 mins | 2025-10-23 02:47:13.479Z | 351.816° N | 2025-10-23 02:51:13.479Z | 292.909° NW | 31.231° | 2025-10-23 02:56:13.479Z | 226.218° WSW |
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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