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.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
40976 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Edit Sat Name
Focus sentinelFocus sentinel
Create New Watchlist
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: 2 days ago
TLE from 2 days ago
0 PROPCUBE 1
1 40976U 15058N 26171.35198918 .00001612 00000-0 16064-3 0 9996
2 40976 64.7742 285.4273 0130904 59.7091 301.6897 14.89233326116730Epoch: 2026-06-20T08:26Z
TLE epoch observation values (Epoch: 2026-06-20T08:26:51.865Z)
Latitude
0.00003°
Longitude
-109.85664°
Altitude
555.217 km
Speed
7.61 km/s
True Right ascension
19h 01m 42s
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
23:18:49
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
690.23 km
Perigee altitude
507.566 km
Semi-major axis
6,977.035 km
Eccentricity
0.01309
Inclination
64.7742°
RAAN
285.4273°
Arg. of periapsis
59.7091°
True anomaly
300.40235°
Mean anomaly
301.6897°
Eccentric anomaly
301.04712°
Mean motion
3.72423 °/min
Orbital period
96.66 mins
BSTAR
0.00016064
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #58 in the year 2015 (2015-10-08 UTC)
Did you know?
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
Loading observer location...
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 | 2026-06-22 17:22:30.322Z | 343.334° N | 2026-06-22 17:25:30.322Z | 34.851° NE | 33.756° | 2026-06-22 17:29:30.322Z | 124.403° SE |
| 4 mins | 2026-06-22 19:03:30.322Z | 275.644° WNW | 2026-06-22 19:05:30.322Z | 241.875° WSW | 16.35° | 2026-06-22 19:07:30.322Z | 212.406° SW |
| 5 mins | 2026-06-23 09:08:30.322Z | 234.481° WSW | 2026-06-23 09:10:30.322Z | 288.628° WNW | 38.373° | 2026-06-23 09:13:30.322Z | 18.445° NNE |
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 |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
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 descending order |
|---|