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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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: 13 hours ago
TLE from 13 hours ago
0 SPARK 2
1 41901U 16081D 26084.67807032 .00000631 00000-0 14454-3 0 9995
2 41901 98.5456 71.9966 0024509 219.9578 139.9817 14.59061002491946Epoch: 2026-03-25T16:16Z
TLE epoch observation values (Epoch: 2026-03-25T16:16:25.275Z)
Latitude
-0.00008°
Longitude
4.75337°
Altitude
712.479 km
Speed
7.492 km/s
True Right ascension
04h 47m 59s
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
10:09:10
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
710.638 km
Perigee altitude
675.975 km
Semi-major axis
7,071.443 km
Eccentricity
0.00245
Inclination
98.5456°
RAAN
71.9966°
Arg. of periapsis
219.9578°
True anomaly
140.16187°
Mean anomaly
139.9817°
Eccentric anomaly
140.07183°
Mean motion
3.6499 °/min
Orbital period
98.63 mins
BSTAR
0.00014454
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Other satellites on launch #81 in the year 2016 (2016-12-21 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.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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-03-26 10:59:01.444Z | 55.426° ENE | 2026-03-26 11:02:01.444Z | 101.8° ESE | 18.627° | 2026-03-26 11:04:01.444Z | 131.434° SE |
| 7 mins | 2026-03-26 12:36:01.444Z | 351.534° N | 2026-03-26 12:39:01.444Z | 298.229° NW | 32.243° | 2026-03-26 12:43:01.444Z | 224.526° SW |
| 5 mins | 2026-03-26 22:04:01.444Z | 100.485° ESE | 2026-03-26 22:06:01.444Z | 67.771° E | 21.036° | 2026-03-26 22:09:01.444Z | 22.236° NNE |
| 7 mins | 2026-03-26 23:40:01.444Z | 199.391° SSW | 2026-03-26 23:43:01.444Z | 248.831° W | 31.203° | 2026-03-26 23:47:01.444Z | 324.922° NNW |
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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