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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Edit Public Description
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: 6 hours ago
TLE from 6 hours ago
0 PROPCUBE 1
1 40976U 15058N 25290.84535338 .00004237 00000-0 40076-3 0 9998
2 40976 64.7759 325.4022 0143661 154.5701 206.2572 14.87509034 80191Epoch: 2025-10-17T20:17Z
TLE epoch observation values (Epoch: 2025-10-17T20:17:18.532Z)
Latitude
0.00002°
Longitude
-5.50989°
Altitude
697.992 km
Speed
7.459 km/s
True Right ascension
21h 41m 36s
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
21:03:48
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
704.601 km
Perigee altitude
503.98 km
Semi-major axis
6,982.427 km
Eccentricity
0.01437
Inclination
64.7759°
RAAN
325.4022°
Arg. of periapsis
154.5701°
True anomaly
205.54047°
Mean anomaly
206.2572°
Eccentric anomaly
205.89769°
Mean motion
3.71992 °/min
Orbital period
96.78 mins
BSTAR
0.00040076
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2025-10-18 04:30:57.175Z | 221.679° SW | 2025-10-18 04:33:57.175Z | 295.087° NW | 43.359° | 2025-10-18 04:37:57.175Z | 26.685° NE |
| 6 mins | 2025-10-18 12:58:57.175Z | 337.091° NNW | 2025-10-18 13:00:57.175Z | 16.037° NNE | 41.616° | 2025-10-18 13:04:57.175Z | 140.707° SSE |
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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in ascending order |
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