STARLINK-37947, 100261
Orbit data source: Space-Track
STARLINK-37947, 100261 is a payload satellite owned by SpaceX/Seattle (US) in SSO that was launched on Sat, 08 Aug 2026 UTC launched 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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100261 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
SpaceX/Seattle
Mission
Operational spacecraft
Bus & Motor
STARLINK V2MO, Unknown motor
Mass
575 kg wet, ~530 kg dry
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
BOX + PAN, 17.7 m
Radar Cross Section
RCS unknown
Expand to show TLE details & historyLast TLE update: 6 hours ago
TLE from 6 hours ago
0 STARLINK-37947
1 A0261U 26181R 26249.61119755 .00221862 00000-0 14413-2 0 9991
2 A0261 97.2865 292.5153 0001173 213.2095 146.9097 15.75330014 5728Epoch: 2026-09-06T14:40Z
TLE epoch observation values (Epoch: 2026-09-06T14:40:07.468Z)
Latitude
0°
Longitude
86.78035°
Altitude
347.521 km
Speed
7.7 km/s
True Right ascension
19h 30m 03s
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
12:51:13
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
341.368 km
Perigee altitude
339.791 km
Semi-major axis
6,718.717 km
Eccentricity
0.00012
Inclination
97.2865°
RAAN
292.5153°
Arg. of periapsis
213.2095°
True anomaly
146.91704°
Mean anomaly
146.9097°
Eccentric anomaly
146.91337°
Mean motion
3.94107 °/min
Orbital period
91.35 mins
BSTAR
0.0014413
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Other satellites on launch #181 in the year 2026 (2026-08-08 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.STARLINK-37947 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 | 2026-09-07 02:59:52.559Z | 165.487° S | 2026-09-07 03:01:52.559Z | 145.807° SSE | 76.581° | 2026-09-07 03:03:52.559Z | 349.909° 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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