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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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: 1 day ago
TLE from 1 day ago
0 OPS 4078 (DMSP 4B F2)
1 03510U 68092A 25306.30930693 .00000197 00000-0 96164-4 0 9990
2 03510 98.5485 68.3195 0028624 273.0397 86.7509 14.28150003964867Epoch: 2025-11-02T07:25Z
TLE epoch observation values (Epoch: 2025-11-02T07:25:24.118Z)
Latitude
-0.00005°
Longitude
-84.85787°
Altitude
799.746 km
Speed
7.454 km/s
True Right ascension
04h 33m 16s
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
07:34:58
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
815.594 km
Perigee altitude
774.529 km
Semi-major axis
7,173.198 km
Eccentricity
0.00286
Inclination
98.5485°
RAAN
68.3195°
Arg. of periapsis
273.0397°
True anomaly
87.07844°
Mean anomaly
86.7509°
Eccentric anomaly
86.91467°
Mean motion
3.57251 °/min
Orbital period
100.77 mins
BSTAR
0.000096164
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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 | 2025-11-03 20:59:29.810Z | 18.229° NNE | 2025-11-03 21:04:29.810Z | 121.868° SE | 43.426° | 2025-11-03 21:09:29.810Z | 187.082° SSW |
| 4 mins | 2025-11-03 22:41:29.810Z | 321.359° NNW | 2025-11-03 22:43:29.810Z | 296.43° NW | 14.586° | 2025-11-03 22:45:29.810Z | 272.323° WNW |
| 9 mins | 2025-11-04 08:18:29.810Z | 169.685° S | 2025-11-04 08:22:29.810Z | 277.582° WNW | 44.676° | 2025-11-04 08:27:29.810Z | 344.752° 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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