OPS 4078 (DMSP 4B F2), 3510
Orbit data source: Space-Track
OPS 4078 (DMSP 4B F2), 3510 is a payload satellite owned by SAMSO (US) in SSO that was launched on Wed, 23 Oct 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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3510 intel report (Beta)
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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: 13 hours ago
TLE from 13 hours ago
0 OPS 4078 (DMSP 4B F2)
1 03510U 68092A 26165.28389095 .00000070 00000-0 45165-4 0 9990
2 03510 98.5722 287.8907 0029214 338.3359 21.6585 14.28251513996831Epoch: 2026-06-14T06:48Z
TLE epoch observation values (Epoch: 2026-06-14T06:48:48.178Z)
Latitude
0.00004°
Longitude
-76.89689°
Altitude
781.033 km
Speed
7.473 km/s
True Right ascension
19h 11m 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
06:11:01
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
815.677 km
Perigee altitude
773.767 km
Semi-major axis
7,172.859 km
Eccentricity
0.00292
Inclination
98.5722°
RAAN
287.8907°
Arg. of periapsis
338.3359°
True anomaly
21.78247°
Mean anomaly
21.6585°
Eccentric anomaly
21.72045°
Mean motion
3.57277 °/min
Orbital period
100.76 mins
BSTAR
0.000045165
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Other satellites on launch #92 in the year 1968 (1968-10-23 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 4078 (DMSP 4B F2) 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 | 2026-06-14 20:50:02.175Z | 19.706° NNE | 2026-06-14 20:55:02.175Z | 96.689° ESE | 42.296° | 2026-06-14 21:00:02.175Z | 183.337° SSW |
| 5 mins | 2026-06-14 22:32:02.175Z | 325.266° NNW | 2026-06-14 22:34:02.175Z | 300.028° NW | 16.002° | 2026-06-14 22:37:02.175Z | 263.654° W |
| 8 mins | 2026-06-15 08:10:02.175Z | 165.877° S | 2026-06-15 08:13:02.175Z | 172.63° S | 44.779° | 2026-06-15 08:18:02.175Z | 346.455° N |
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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