NUSAT-51 (YVONNE BRILL), 66740
Orbit data source: Space-Track
NUSAT-51 (YVONNE BRILL), 66740 is a payload satellite owned by URUGUS S.A. (AR) 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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66740 intel report (Beta)
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Identifier
Orbit
Country
AR / ARGNRelated business
Manufacturer
URUGUS S.A.
Mission
Operational Amateur Technology
Bus & Motor
NEWSAT V, Unknown motor
Mass
41.5 kg wet, 38.5 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box, 0.1 m
Radar Cross Section
0.015 m²
Expand to show TLE details & historyLast TLE update: 13 hours ago
TLE from 13 hours ago
0 NUSAT-51 (YVONNE BRILL)
1 66740U 25276CC 26141.16938112 .00004305 00000-0 20357-3 0 9992
2 66740 97.4210 215.2713 0004811 93.5459 266.6326 15.19905710 26320Epoch: 2026-05-21T04:03Z
TLE epoch observation values (Epoch: 2026-05-21T04:03:54.528Z)
Latitude
-0.00008°
Longitude
-84.52433°
Altitude
509.411 km
Speed
7.609 km/s
True Right ascension
14h 21m 05s
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
01:55:51
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
506.402 km
Perigee altitude
499.781 km
Semi-major axis
6,881.229 km
Eccentricity
0.00048
Inclination
97.421°
RAAN
215.2713°
Arg. of periapsis
93.5459°
True anomaly
266.57757°
Mean anomaly
266.6326°
Eccentric anomaly
266.60508°
Mean motion
3.80228 °/min
Orbital period
94.68 mins
BSTAR
0.00020357
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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.NUSAT-51 (YVONNE BRILL) 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-05-21 17:16:56.018Z | 40.28° NE | 2026-05-21 17:18:56.018Z | 83.069° E | 27.703° | 2026-05-21 17:21:56.018Z | 156.677° SSE |
| 5 mins | 2026-05-22 05:28:56.018Z | 206.344° SW | 2026-05-22 05:30:56.018Z | 256.786° W | 29.6° | 2026-05-22 05:33:56.018Z | 325.581° NNW |
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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