KEPLER-21, 56218 (Decayed)
Orbit data source: Space-Track
KEPLER-21, 56218 was a payload satellite owned by Kepler Comms (CA) in LEO that was launched on Sat, 15 Apr 2023 UTC via an FALCON 9 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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56218 intel report (Beta)
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Identifier
Orbit
Country
CARelated business
Manufacturer
KEPLER/UTIAS
Mission
Decayed Commercial Communications
Bus & Motor
CUBESAT 6U, Unknown motor
Mass
15 kg wet, 15 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 0.3 m
Radar Cross Section
0.109 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 4 months ago
TLE from 4 months ago
0 KEPLER-21
1 56218U 23054AS 26191.04117912 .08776155 25499-5 17004-3 0 9998
2 56218 97.2696 113.6074 0009833 228.7928 131.2529 16.46721821182907Epoch: 2026-07-10T00:59Z
TLE epoch observation values (Epoch: 2026-07-10T00:59:17.875Z)
Latitude
0°
Longitude
170.80847°
Altitude
155.482 km
Speed
7.81 km/s
True Right ascension
07h 34m 25s
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
06:34:09
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
151.189 km
Perigee altitude
138.361 km
Semi-major axis
6,522.912 km
Eccentricity
0.00098
Inclination
97.2696°
RAAN
113.6074°
Arg. of periapsis
228.7928°
True anomaly
131.33754°
Mean anomaly
131.2529°
Eccentric anomaly
131.29523°
Mean motion
4.11984 °/min
Orbital period
87.38 mins
BSTAR
0.00017004
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Other satellites on launch #54 in the year 2023 (2023-04-15 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.KEPLER-21 Visibility
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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. |
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| This satellite is decayed. |
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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