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PROPCUBE 3, 40973

Orbit data source: Space-Track

PROPCUBE 3, 40973 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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<iframe src="https://www.satcat.com/sats-embedded/40973?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/40973?theme=dark&initialShowStats=false

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Identifier

40973, 2015-058K

Orbit

LEO

Country

Related business

United States Navy (US)

Manufacturer

Tyvak NSS

Mission

Operational Defense Technology

Bus & Motor

CUBESAT 1U, Unknown motor

Mass

1 kg wet, 1 kg dry

Launch date (UTC)

2015-10-08 (10 years ago)

Launch vehicle

ATLAS V 401

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box, 0.1 m

Radar Cross Section

0.015 m², Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 6 hours ago

TLE from 6 hours ago

0 PROPCUBE 3
1 40973U 15058K   25356.23913519  .00004380  00000-0  37334-3 0  9994
2 40973  64.7698  84.7915 0129375 130.1619 231.0911 14.92778351 88377

Epoch: 2025-12-22T05:44Z

TLE epoch observation values (Epoch: 2025-12-22T05:44:21.280Z)

Latitude

0.00004°

Longitude

-92.33724°

Altitude

648.606 km

Speed

7.503 km/s

True Right ascension

05h 39m 09s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

10:50:43

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

677.966 km

Perigee altitude

497.721 km

Semi-major axis

6,965.98 km

Eccentricity

0.01294

Inclination

64.7698°

RAAN

84.7915°

Arg. of periapsis

130.1619°

True anomaly

229.94916°

Mean anomaly

231.0911°

Eccentric anomaly

230.51897°

Mean motion

3.7331 °/min

Orbital period

96.43 mins

BSTAR

0.00037334

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Other satellites on launch #58 in the year 2015 (2015-10-08 UTC)

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PROPCUBE 3 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.
5 mins	2025-12-22 15:55:02.824Z	5.733° NNE	2025-12-22 15:57:02.824Z	44.964° NE	20.276°	2025-12-22 16:00:02.824Z	99.662° ESE
4 mins	2025-12-22 17:35:02.824Z	281.417° WNW	2025-12-22 17:36:02.824Z	255.886° W	25.241°	2025-12-22 17:39:02.824Z	190.12° SSW
6 mins	2025-12-23 07:37:02.824Z	199.297° SSW	2025-12-23 07:40:02.824Z	88.398° E	42.654°	2025-12-23 07:43:02.824Z	38.042° NE

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out PROPCUBE 3, 40973 on other resources

View PROPCUBE 3, 40973 on NASA - NSSDCA Website

View PROPCUBE 3, 40973 on Heavens-Above

View PROPCUBE 3, 40973 on Keep Track

View PROPCUBE 3, 40973 on Celestrak

View PROPCUBE 3, 40973 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

PROPCUBE 3, 40973

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 6 hours ago

TLE from 6 hours ago

TLE epoch observation values (Epoch: 2025-12-22T05:44:21.280Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #58 in the year 2015 (2015-10-08 UTC)

PROPCUBE 3 Visibility forecast

Co-orbital & Co-planar RSOs

Check out PROPCUBE 3, 40973 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 6 hours ago