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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39474 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
Duocomm Miltec
Mission
Operational Defense Communications
Bus & Motor
CUBESAT 3U, Unknown motor
Mass
4 kg wet, 4 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box, 0.1 m
Radar Cross Section
0.075 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 5 days ago
TLE from 5 days ago
0 SMDC ONE 2.3
1 39474U 13072N 26155.29291799 .00129581 00000-0 13100-2 0 9990
2 39474 120.4489 84.4555 0066574 39.5071 321.0851 15.61712584115569Epoch: 2026-06-04T07:01Z
TLE epoch observation values (Epoch: 2026-06-04T07:01:48.114Z)
Latitude
-0.00002°
Longitude
86.26577°
Altitude
349.386 km
Speed
7.72 km/s
True Right ascension
05h 37m 49s
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
11:27:56
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
426.971 km
Perigee altitude
336.962 km
Semi-major axis
6,760.103 km
Eccentricity
0.00666
Inclination
120.4489°
RAAN
84.4555°
Arg. of periapsis
39.5071°
True anomaly
320.60277°
Mean anomaly
321.0851°
Eccentric anomaly
320.84425°
Mean motion
3.90493 °/min
Orbital period
92.19 mins
BSTAR
0.00131
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Other satellites on launch #72 in the year 2013 (2013-12-06 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.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 | 2026-06-09 10:25:41.211Z | 60.261° ENE | 2026-06-09 10:27:41.211Z | 123.235° SE | 34.842° | 2026-06-09 10:29:41.211Z | 197.922° SSW |
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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