OBJECT U, 66684
Orbit data source: Space-Track
You're viewing an Uncataloged Satellite
Recently launched and/or uncataloged satellites may have evolving metadata. Metadata may include but not limited to: Owner, Maufacturer, Bus, Motor, and Mission.
OBJECT U, 66684 is a satellite in SSO that was launched on Fri, 28 Nov 2025 UTC via an FALCON 9 launch vehicle from the Air Force Western Test Range (AFWTR). Unknown objects in Earth's orbit typically refer to objects detected orbiting the Earth but have not yet been identified or cataloged. These objects could be anything from previously untracked satellites, spent rocket stages, debris from satellite collisions, or even natural meteoroids temporarily captured by Earth's gravity.
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66684 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
TBDRelated business
None
Manufacturer
Unknown
Mission
Operational Commercial Imaging
Bus & Motor
Unknown
Mass
Unknown
Launch date (UTC)
Launch vehicle
Launch site
Object type
Unknown
Shape & HBR
Box, 0.1 m
Radar Cross Section
0.080 m²
Expand to show TLE details & historyLast TLE update: 20 hours ago
TLE from 20 hours ago
0 OBJECT U
1 66684U 25276U 26034.48975716 .00005429 00000-0 26981-3 0 9993
2 66684 97.4408 110.3743 0007053 99.1192 261.0840 15.18041876 10125Epoch: 2026-02-03T11:45Z
TLE epoch observation values (Epoch: 2026-02-03T11:45:15.018Z)
Latitude
-0.00006°
Longitude
160.39178°
Altitude
515.602 km
Speed
7.605 km/s
True Right ascension
07h 21m 29s
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
09:18:08
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
513.586 km
Perigee altitude
503.872 km
Semi-major axis
6,886.866 km
Eccentricity
0.00071
Inclination
97.4408°
RAAN
110.3743°
Arg. of periapsis
99.1192°
True anomaly
261.00417°
Mean anomaly
261.084°
Eccentric anomaly
261.04408°
Mean motion
3.79761 °/min
Orbital period
94.8 mins
BSTAR
0.00026981
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Other satellites on launch #276 in the year 2025 (2025-11-28 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.OBJECT U 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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-02-04 18:23:43.183Z | 327.362° NNW | 2026-02-04 18:24:43.183Z | 299.137° NW | 27.887° | 2026-02-04 18:27:43.183Z | 228.638° WSW |
| 5 mins | 2026-02-05 05:01:43.183Z | 169.467° S | 2026-02-05 05:03:43.183Z | 255.899° W | 44.938° | 2026-02-05 05:06:43.183Z | 346.833° N |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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