DELFI-N3XT, 39428
Orbit data source: Space-Track
DELFI-N3XT, 39428 is a payload satellite owned by TU Delft (NL) in SSO that was launched on Thu, 21 Nov 2013 UTC via a DNEPR launch vehicle from the Orenburg, Russia (OREN). 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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39428 intel report (Beta)
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Identifier
Orbit
Country
NL / NETHRelated business
Manufacturer
TU Delft
Mission
Non-operational Amateur Technology
Bus & Motor
CUBESAT 3U, Unknown motor
Mass
3.5 kg wet, 3.5 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 4 Pan, 0.1 m
Radar Cross Section
0.075 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 6 hours ago
TLE from 6 hours ago
0 DELFI-N3XT
1 39428U 13066N 26092.32545031 .00012654 00000-0 11207-2 0 9995
2 39428 97.8354 12.7646 0077857 98.8081 262.1965 14.94048376663291Epoch: 2026-04-02T07:48Z
TLE epoch observation values (Epoch: 2026-04-02T07:48:38.906Z)
Latitude
-0.00007°
Longitude
64.92695°
Altitude
596.148 km
Speed
7.558 km/s
True Right ascension
00h 51m 03s
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
19:56:03
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
636.539 km
Perigee altitude
528.155 km
Semi-major axis
6,960.484 km
Eccentricity
0.00779
Inclination
97.8354°
RAAN
12.7646°
Arg. of periapsis
98.8081°
True anomaly
261.31379°
Mean anomaly
262.1965°
Eccentric anomaly
261.75502°
Mean motion
3.73752 °/min
Orbital period
96.32 mins
BSTAR
0.0011207
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Other satellites on launch #66 in the year 2013 (2013-11-21 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.DELFI-N3XT 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 | 2026-04-02 17:36:46.238Z | 103.33° ESE | 2026-04-02 17:38:46.238Z | 71.818° E | 15.522° | 2026-04-02 17:40:46.238Z | 37.15° NE |
| 5 mins | 2026-04-02 19:11:46.238Z | 204.692° SW | 2026-04-02 19:13:46.238Z | 247.18° WSW | 29.518° | 2026-04-02 19:16:46.238Z | 321.008° NNW |
| 4 mins | 2026-04-03 06:54:46.238Z | 61.578° ENE | 2026-04-03 06:55:46.238Z | 86.074° E | 25.175° | 2026-04-03 06:58:46.238Z | 150.881° SSE |
| 4 mins | 2026-04-03 08:29:46.238Z | 322.875° NNW | 2026-04-03 08:31:46.238Z | 283.917° WNW | 17.855° | 2026-04-03 08:33:46.238Z | 250.712° W |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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