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, 0.1 m
Radar Cross Section
0.015 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 8 hours ago
TLE from 8 hours ago
0 PROPCUBE 1
1 40976U 15058N 26125.28116438 .00004055 00000-0 38315-3 0 9991
2 40976 64.7755 68.1857 0129376 77.7135 283.8427 14.88979146109871Epoch: 2026-05-05T06:44Z
TLE epoch observation values (Epoch: 2026-05-05T06:44:52.602Z)
Latitude
0.00001°
Longitude
103.80827°
Altitude
582.63 km
Speed
7.581 km/s
True Right ascension
04h 32m 44s
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
22:21:38
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
689.968 km
Perigee altitude
509.416 km
Semi-major axis
6,977.829 km
Eccentricity
0.01294
Inclination
64.7755°
RAAN
68.1857°
Arg. of periapsis
77.7135°
True anomaly
282.39778°
Mean anomaly
283.8427°
Eccentric anomaly
283.12078°
Mean motion
3.7236 °/min
Orbital period
96.68 mins
BSTAR
0.00038315
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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 | 2026-05-05 21:23:13.049Z | 177.849° S | 2026-05-05 21:26:13.049Z | 120.694° SE | 29.021° | 2026-05-05 21:29:13.049Z | 55.296° ENE |
| 4 mins | 2026-05-05 23:04:13.049Z | 278.81° WNW | 2026-05-05 23:06:13.049Z | 319.473° NNW | 19.08° | 2026-05-05 23:08:13.049Z | 355.101° N |
| 4 mins | 2026-05-06 05:51:13.049Z | 18.852° NNE | 2026-05-06 05:52:13.049Z | 39.909° NE | 21.189° | 2026-05-06 05:55:13.049Z | 96.387° ESE |
| 5 mins | 2026-05-06 07:30:13.049Z | 290.539° WNW | 2026-05-06 07:32:13.049Z | 240.824° WSW | 27.79° | 2026-05-06 07:35:13.049Z | 185.724° 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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