UMBRA-11, 66748
Orbit data source: Space-Track
UMBRA-11, 66748 is a payload satellite owned by Umbra Labs (US) 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). 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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66748 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
Umbra Labs
Mission
Operational Commercial Radar Imaging
Bus & Motor
ESPASAT?, Unknown motor
Mass
84 kg wet, 79 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan + 1 Dish, 2.0 m
Radar Cross Section
6.513 m²
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 UMBRA-11
1 66748U 25276CL 26034.15926624 .00020565 00000-0 93921-3 0 9998
2 66748 97.4341 110.1437 0002937 94.7237 265.4334 15.20609314 10088Epoch: 2026-02-03T03:49Z
TLE epoch observation values (Epoch: 2026-02-03T03:49:20.603Z)
Latitude
0.00002°
Longitude
-80.53635°
Altitude
507.253 km
Speed
7.61 km/s
True Right ascension
07h 20m 34s
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
07:44:35
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
502.988 km
Perigee altitude
498.947 km
Semi-major axis
6,879.105 km
Eccentricity
0.00029
Inclination
97.4341°
RAAN
110.1437°
Arg. of periapsis
94.7237°
True anomaly
265.39985°
Mean anomaly
265.4334°
Eccentric anomaly
265.41663°
Mean motion
3.80404 °/min
Orbital period
94.64 mins
BSTAR
0.00093921
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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.UMBRA-11 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 18:18:25.621Z | 334.556° NNW | 2026-02-04 18:19:25.621Z | 306.031° NW | 30.503° | 2026-02-04 18:22:25.621Z | 224.613° SW |
| 5 mins | 2026-02-05 04:55:25.621Z | 159.104° S | 2026-02-05 04:57:25.621Z | 79.886° E | 44.22° | 2026-02-05 05:00:25.621Z | 352.016° 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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