PROPCUBE 1, 40976
Orbit data source: Space-Track
PROPCUBE 1, 40976 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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40976 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, 0.087 m
Radar Cross Section
0.015 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 10 hours ago
TLE from 10 hours ago
0 PROPCUBE 1
1 40976U 15058N 26305.22885594 .00003138 00000-0 28365-3 0 9996
2 40976 64.7739 230.2899 0143417 10.3655 350.0357 14.89820204136671Epoch: 2026-11-01T05:29Z
TLE epoch observation values (Epoch: 2026-11-01T05:29:33.153Z)
Latitude
-0°
Longitude
107.37853°
Altitude
501.989 km
Speed
7.667 km/s
True Right ascension
15h 21m 09s
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
10:46:23
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
697.101 km
Perigee altitude
497.028 km
Semi-major axis
6,975.202 km
Eccentricity
0.01434
Inclination
64.7739°
RAAN
230.2899°
Arg. of periapsis
10.3655°
True anomaly
349.74622°
Mean anomaly
350.0357°
Eccentric anomaly
349.89148°
Mean motion
3.7257 °/min
Orbital period
96.63 mins
BSTAR
0.00028365
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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 1 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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-11-01 20:07:11.903Z | 164.175° S | 2026-11-01 20:10:11.903Z | 109.664° ESE | 22.867° | 2026-11-01 20:13:11.903Z | 59.485° ENE |
| 5 mins | 2026-11-01 21:47:11.903Z | 262.127° W | 2026-11-01 21:49:11.903Z | 305.68° NW | 27.812° | 2026-11-01 21:52:11.903Z | 5.412° NNE |
| 5 mins | 2026-11-02 04:34:11.903Z | 12.793° NNE | 2026-11-02 04:36:11.903Z | 46.363° ENE | 20.996° | 2026-11-02 04:39:11.903Z | 90.766° ESE |
| 7 mins | 2026-11-02 06:13:11.903Z | 309.36° NW | 2026-11-02 06:16:11.903Z | 228.421° WSW | 50.526° | 2026-11-02 06:20:11.903Z | 168.532° S |
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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