IPEX, 39471
Orbit data source: Space-Track
IPEX, 39471 is an American payload satellite 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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39471 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
Cal Poly
Mission
Non-operational Civil Technology
Bus & Motor
CUBESAT 1U, Unknown motor
Mass
1 kg wet, 1 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box, 0.1 m
Radar Cross Section
0.015 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 5 days ago
TLE from 5 days ago
0 IPEX
1 39471U 13072K 26155.17754872 .00006383 00000-0 32219-3 0 9997
2 39471 120.4641 249.0322 0162682 348.5494 11.1900 15.07934113113278Epoch: 2026-06-04T04:15Z
TLE epoch observation values (Epoch: 2026-06-04T04:15:40.209Z)
Latitude
-0.00002°
Longitude
-67.51088°
Altitude
433.675 km
Speed
7.713 km/s
True Right ascension
16h 36m 07s
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
12:48:30
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
654.364 km
Perigee altitude
429.215 km
Semi-major axis
6,919.927 km
Eccentricity
0.01627
Inclination
120.4641°
RAAN
249.0322°
Arg. of periapsis
348.5494°
True anomaly
11.55913°
Mean anomaly
11.19°
Eccentric anomaly
11.37382°
Mean motion
3.77043 °/min
Orbital period
95.48 mins
BSTAR
0.00032219
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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.IPEX 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 | 2026-06-09 05:23:01.759Z | 111.515° ESE | 2026-06-09 05:25:01.759Z | 28.663° NE | 38.629° | 2026-06-09 05:28:01.759Z | 326.481° NNW |
| 6 mins | 2026-06-09 21:39:01.759Z | 48.258° ENE | 2026-06-09 21:41:01.759Z | 79.219° E | 43.595° | 2026-06-09 21:45:01.759Z | 219.048° SW |
| 4 mins | 2026-06-09 23:12:01.759Z | 351.075° N | 2026-06-09 23:13:01.759Z | 331.789° NNW | 19.167° | 2026-06-09 23:16:01.759Z | 282.426° WNW |
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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