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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 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: 22 hours ago

TLE from 22 hours ago

0 PROPCUBE 3
1 40973U 15058K   26080.65041276  .00003846  00000-0  32733-3 0  9991
2 40973  64.7689 165.8994 0123046  94.7902 266.7274 14.93628569101722

Epoch: 2026-03-21T15:36Z

TLE epoch observation values (Epoch: 2026-03-21T15:36:35.662Z)

Latitude

-0.00008°

Longitude

112.58269°

Altitude

594.585 km

Speed

7.56 km/s

True Right ascension

11h 03m 35s

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

18:45:16

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

670.88 km

Perigee altitude

499.518 km

Semi-major axis

6,963.336 km

Eccentricity

0.0123

Inclination

64.7689°

RAAN

165.8994°

Arg. of periapsis

94.7902°

True anomaly

265.32107°

Mean anomaly

266.7274°

Eccentric anomaly

266.0241°

Mean motion

3.73523 °/min

Orbital period

96.38 mins

BSTAR

0.00032733

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

ATLAS 5 CENTAUR R/B, 40978

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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.
6 mins	2026-03-22 16:15:25.978Z	327.962° NNW	2026-03-22 16:18:25.978Z	156.932° SSE	44.814°	2026-03-22 16:21:25.978Z	149.651° SSE
4 mins	2026-03-23 06:19:25.978Z	151.892° SSE	2026-03-23 06:21:25.978Z	110.47° ESE	21.735°	2026-03-23 06:23:25.978Z	71.104° E
5 mins	2026-03-23 07:58:25.978Z	264.88° W	2026-03-23 08:00:25.978Z	311.861° NW	25.263°	2026-03-23 08:03:25.978Z	7.814° NNE

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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: 22 hours ago

TLE from 22 hours ago

TLE epoch observation values (Epoch: 2026-03-21T15:36:35.662Z)

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: 22 hours ago