SPARK 2, 41901
Orbit data source: Space-Track
SPARK 2, 41901 is a payload satellite owned by SECM (CN) in SSO that was launched on Wed, 21 Dec 2016 UTC via a CHANG ZHENG 2D launch vehicle from the Jiuquan Satellite Launch Center, China (JSC). 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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41901 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
SECM
Mission
Operational Civil Imaging
Bus & Motor
SPARK, Unknown motor
Mass
43 kg wet, 43 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 0.5 m
Radar Cross Section
0.388 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 3 hours ago
TLE from 3 hours ago
0 SPARK 2
1 41901U 16081D 25359.83617214 .00000759 00000-0 17213-3 0 9995
2 41901 98.5335 339.6480 0026248 137.0122 223.3133 14.58870043478849Epoch: 2025-12-25T20:04Z
TLE epoch observation values (Epoch: 2025-12-25T20:04:05.272Z)
Latitude
-0.0001°
Longitude
-55.95945°
Altitude
713.336 km
Speed
7.492 km/s
True Right ascension
22h 38m 35s
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
22:39:22
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
712.486 km
Perigee altitude
675.36 km
Semi-major axis
7,072.06 km
Eccentricity
0.00262
Inclination
98.5335°
RAAN
339.648°
Arg. of periapsis
137.0122°
True anomaly
223.10746°
Mean anomaly
223.3133°
Eccentric anomaly
223.21033°
Mean motion
3.64942 °/min
Orbital period
98.65 mins
BSTAR
0.00017213
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Other satellites on launch #81 in the year 2016 (2016-12-21 UTC)
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.SPARK 2 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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2025-12-25 23:28:58.400Z | 203.427° SW | 2025-12-25 23:31:58.400Z | 253.186° W | 28.971° | 2025-12-25 23:35:58.400Z | 323.708° NNW |
| 7 mins | 2025-12-26 11:27:58.400Z | 25.757° NE | 2025-12-26 11:30:58.400Z | 78.323° E | 39.406° | 2025-12-26 11:34:58.400Z | 177.461° S |
| 7 mins | 2025-12-26 22:32:58.400Z | 145.646° SSE | 2025-12-26 22:35:58.400Z | 51.654° ENE | 40.634° | 2025-12-26 22:39:58.400Z | 354.711° N |
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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