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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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<iframe src="https://www.satcat.com/sats-embedded/40976?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/40976?theme=dark&initialShowStats=false

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Identifier

40976, 2015-058N

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 (11 years ago)

Launch vehicle

ATLAS V 401

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box, 0.087 m

Radar Cross Section

0.015 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history
Last TLE update: 8 hours ago

TLE from 8 hours ago

0 PROPCUBE 1
1 40976U 15058N   26285.29150089  .00003025  00000-0  27658-3 0  9993
2 40976  64.7732 292.1412 0141144  17.3106 343.2746 14.89690303133707

Epoch: 2026-10-12T06:59Z

TLE epoch observation values (Epoch: 2026-10-12T06:59:45.676Z)

Latitude

0.00001°

Longitude

166.32886°

Altitude

506.706 km

Speed

7.662 km/s

True Right ascension

19h 28m 33s

True Declination

0° 00' 00"

Sunlit

Object was in daylight 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

09:46:39

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

695.927 km

Perigee altitude

499.014 km

Semi-major axis

6,975.607 km

Eccentricity

0.01411

Inclination

64.7732°

RAAN

292.1412°

Arg. of periapsis

17.3106°

True anomaly

342.80115°

Mean anomaly

343.2746°

Eccentric anomaly

343.03868°

Mean motion

3.72538 °/min

Orbital period

96.63 mins

BSTAR

0.00027658

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

ATLAS 5 CENTAUR R/B, 40978

SNAP-3 ALICE, 40970 (Decayed)

SNAP-3 EDDIE, 40972 (Decayed)

USA 264, 40964

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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	2026-10-13 02:28:16.170Z	216.832° SW	2026-10-13 02:31:16.170Z	245.785° WSW	64.066°	2026-10-13 02:35:16.170Z	28.106° NE
8 mins	2026-10-13 10:54:16.170Z	334.821° NNW	2026-10-13 10:58:16.170Z	44.922° NE	64.1°	2026-10-13 11:02:16.170Z	136.822° SSE

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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 1, 40976 on other resources

View PROPCUBE 1, 40976 on NASA - NSSDCA Website

View PROPCUBE 1, 40976 on Heavens-Above

View PROPCUBE 1, 40976 on Keep Track

View PROPCUBE 1, 40976 on Celestrak

View PROPCUBE 1, 40976 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 1, 40976

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 8 hours ago

TLE from 8 hours ago

TLE epoch observation values (Epoch: 2026-10-12T06:59:45.676Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

PROPCUBE 1 Visibility forecast

Co-orbital & Co-planar RSOs

Check out PROPCUBE 1, 40976 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 8 hours ago