MERCURY ONE (M1), 66742
Orbit data source: Space-Track
MERCURY ONE (M1), 66742 is an American payload 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). 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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66742 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
PROTE
Mission
Operational Commercial Technology
Bus & Motor
M1, Unknown motor
Mass
50 kg wet, 50 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box, 0.4 m
Radar Cross Section
0.400 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 9 hours ago
TLE from 9 hours ago
0 MERCURY ONE (M1)
1 66742U 25276CE 26238.70868412 .00004175 00000-0 19622-3 0 9994
2 66742 97.4151 311.0546 0003976 89.1569 271.0121 15.20134275 41130Epoch: 2026-08-26T17:00Z
TLE epoch observation values (Epoch: 2026-08-26T17:00:30.307Z)
Latitude
-0.00013°
Longitude
80.97054°
Altitude
508.478 km
Speed
7.61 km/s
True Right ascension
20h 44m 13s
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
17:12:00
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
505.137 km
Perigee altitude
499.666 km
Semi-major axis
6,880.538 km
Eccentricity
0.0004
Inclination
97.4151°
RAAN
311.0546°
Arg. of periapsis
89.1569°
True anomaly
270.96655°
Mean anomaly
271.0121°
Eccentric anomaly
270.98932°
Mean motion
3.80285 °/min
Orbital period
94.67 mins
BSTAR
0.00019622
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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.MERCURY ONE (M1) 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 | 2026-08-27 04:13:12.096Z | 113.453° SE | 2026-08-27 04:15:12.096Z | 71.104° E | 21.648° | 2026-08-27 04:17:12.096Z | 27.986° NE |
| 5 mins | 2026-08-27 17:17:12.096Z | 42.615° NE | 2026-08-27 17:19:12.096Z | 92.811° ESE | 29.161° | 2026-08-27 17:22:12.096Z | 160.604° S |
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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