PROPCUBE 3, 40973
Orbit data source: Space-Track
PROPCUBE 3, 40973 is a payload satellite owned by USN PGS (US) in LEO that was launched on Thu, 08 Oct 2015 UTC via an ATLAS V 401 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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40973 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
Tyvak NSS
Mission
Operational Defense Technology
Bus & Motor
CUBESAT 1U, Unknown motor
Mass
1 kg wet, 1 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box, 0.1 m
Radar Cross Section
0.015 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 PROPCUBE 3
1 40973U 15058K 26260.55137495 .00001634 00000-0 14073-3 0 9999
2 40973 64.7681 323.8209 0131594 24.9153 335.8235 14.94772374128605Epoch: 2026-09-17T13:13Z
TLE epoch observation values (Epoch: 2026-09-17T13:13:58.795Z)
Latitude
-0.00008°
Longitude
128.83889°
Altitude
501.716 km
Speed
7.659 km/s
True Right ascension
21h 35m 17s
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
07:35:45
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
673.231 km
Perigee altitude
490.058 km
Semi-major axis
6,959.782 km
Eccentricity
0.01316
Inclination
64.7681°
RAAN
323.8209°
Arg. of periapsis
24.9153°
True anomaly
335.19653°
Mean anomaly
335.8235°
Eccentric anomaly
335.51096°
Mean motion
3.73809 °/min
Orbital period
96.31 mins
BSTAR
0.00014073
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Other satellites on launch #58 in the year 2015 (2015-10-08 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.PROPCUBE 3 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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2026-09-18 15:28:05.298Z | 312.159° NW | 2026-09-18 15:32:05.298Z | 232.439° WSW | 41.811° | 2026-09-18 15:36:05.298Z | 173.159° S |
| 5 mins | 2026-09-19 05:32:05.298Z | 178.775° S | 2026-09-19 05:34:05.298Z | 96.069° ESE | 48.105° | 2026-09-19 05:37:05.298Z | 43.264° NE |
| 6 mins | 2026-09-19 13:56:05.298Z | 0.271° NNE | 2026-09-19 13:58:05.298Z | 41.76° NE | 33.039° | 2026-09-19 14:02:05.298Z | 114.271° SE |
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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