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SMDC ONE 2.3, 39474

Orbit data source: Space-Track

SMDC ONE 2.3, 39474 is a payload satellite owned by SMDC (US) in LEO that was launched on Fri, 06 Dec 2013 UTC via an ATLAS V 501 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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https://www.satcat.com/sats-embedded/39474?theme=dark&initialShowStats=false

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Identifier

39474, 2013-072N

Orbit

LEO

Country

Related business

United States Army (US)

Manufacturer

Duocomm Miltec

Mission

Operational Defense Communications

Bus & Motor

CUBESAT 3U, Unknown motor

Mass

4 kg wet, 4 kg dry

Launch date (UTC)

2013-12-06 (12 years ago)

Launch vehicle

ATLAS V 501

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box, 0.1 m

Radar Cross Section

0.075 m², Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 9 hours ago

TLE from 9 hours ago

0 SMDC ONE 2.3
1 39474U 13072N   26095.18398939  .00076855  00000-0  10919-2 0  9995
2 39474 120.4510 198.7230 0066840 331.1146  28.6253 15.53211454106201

Epoch: 2026-04-05T04:24Z

TLE epoch observation values (Epoch: 2026-04-05T04:24:56.683Z)

Latitude

-0.00001°

Longitude

-61.00623°

Altitude

369.188 km

Speed

7.711 km/s

True Right ascension

13h 14m 53s

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

19:25:31

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

451.966 km

Perigee altitude

361.267 km

Semi-major axis

6,784.753 km

Eccentricity

0.00668

Inclination

120.451°

RAAN

198.723°

Arg. of periapsis

331.1146°

True anomaly

28.99495°

Mean anomaly

28.6253°

Eccentric anomaly

28.80985°

Mean motion

3.88367 °/min

Orbital period

92.7 mins

BSTAR

0.0010919

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Other satellites on launch #72 in the year 2013 (2013-12-06 UTC)

SNAP-3, 39468 (Decayed)

TACSAT 6, 39473

USA 247, 39462

ALICE, 39467

CUNYSAT-1, 39470 (Decayed)

SMDC ONE 2.4, 39472

MCUBED-2, 39469

ATLAS 5 CENTAUR R/B, 39475

IPEX, 39471

FIREBIRD A, 39463 (Decayed)

AEROCUBE 5B, 39466 (Decayed)

AEROCUBE 5A, 39465 (Decayed)

FIREBIRD B, 39464

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.

Click here to try in Sandbox

SMDC ONE 2.3 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.
4 mins	2026-04-05 20:25:32.268Z	81.173° E	2026-04-05 20:27:32.268Z	120.909° SE	17.599°	2026-04-05 20:29:32.268Z	163.767° S
5 mins	2026-04-05 21:55:32.268Z	19.509° NNE	2026-04-05 21:57:32.268Z	312.544° NW	33.453°	2026-04-05 22:00:32.268Z	246.667° WSW
4 mins	2026-04-06 05:19:32.268Z	109.276° ESE	2026-04-06 05:20:32.268Z	64.73° ENE	38.966°	2026-04-06 05:23:32.268Z	325.785° NNW

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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 SMDC ONE 2.3, 39474 on other resources

View SMDC ONE 2.3, 39474 on NASA - NSSDCA Website

View SMDC ONE 2.3, 39474 on Heavens-Above

View SMDC ONE 2.3, 39474 on Keep Track

View SMDC ONE 2.3, 39474 on Celestrak

View SMDC ONE 2.3, 39474 on Gunter's Space Page

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

SMDC ONE 2.3, 39474

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 9 hours ago

TLE from 9 hours ago

TLE epoch observation values (Epoch: 2026-04-05T04:24:56.683Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #72 in the year 2013 (2013-12-06 UTC)

SMDC ONE 2.3 Visibility forecast

Co-orbital & Co-planar RSOs

Check out SMDC ONE 2.3, 39474 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 9 hours ago