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: 12 hours ago
TLE from 12 hours ago
0 PROPCUBE 1
1 40976U 15058N 25339.98486403 .00005979 00000-0 56149-3 0 9997
2 40976 64.7729 173.4603 0137651 136.5138 224.6928 14.87898817 87501Epoch: 2025-12-05T23:38Z
TLE epoch observation values (Epoch: 2025-12-05T23:38:12.252Z)
Latitude
0.00001°
Longitude
103.89015°
Altitude
675.488 km
Speed
7.482 km/s
True Right ascension
11h 33m 50s
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
09:57:50
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
699.168 km
Perigee altitude
506.974 km
Semi-major axis
6,981.208 km
Eccentricity
0.01377
Inclination
64.7729°
RAAN
173.4603°
Arg. of periapsis
136.5138°
True anomaly
223.59691°
Mean anomaly
224.6928°
Eccentric anomaly
224.14352°
Mean motion
3.72089 °/min
Orbital period
96.75 mins
BSTAR
0.00056149
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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 | 2025-12-06 14:17:13.359Z | 179.498° S | 2025-12-06 14:20:13.359Z | 129.548° SE | 31.269° | 2025-12-06 14:24:13.359Z | 50.161° ENE |
| 5 mins | 2025-12-06 15:58:13.359Z | 273.822° WNW | 2025-12-06 16:00:13.359Z | 310.528° NW | 21.402° | 2025-12-06 16:03:13.359Z | 1.083° NNE |
| 4 mins | 2025-12-06 22:46:13.359Z | 21.666° NNE | 2025-12-06 22:47:13.359Z | 44.038° NE | 20.679° | 2025-12-06 22:50:13.359Z | 99.334° ESE |
| 5 mins | 2025-12-07 00:25:13.359Z | 287.816° WNW | 2025-12-07 00:27:13.359Z | 236.522° WSW | 25.377° | 2025-12-07 00:30:13.359Z | 185.015° SSW |
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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