SHIJIAN 6 05A (SJ-6 05A), 49961
Orbit data source: Space-Track
SHIJIAN 6 05A (SJ-6 05A), 49961 is a payload satellite owned by CASC (CN) in SSO that was launched on Fri, 10 Dec 2021 UTC via a CHANG ZHENG 4B 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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49961 intel report (Beta)
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Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
SAST
Mission
Operational Defense Sigint
Bus & Motor
FY-1?, Unknown motor
Mass
~1,000 kg wet, ~1,000 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 4.3 m
Radar Cross Section
5.659 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 SHIJIAN 6 05A (SJ-6 05A)
1 49961U 21122A 26171.46244338 .00002184 00000-0 18245-3 0 9996
2 49961 97.4094 139.8548 0003769 94.8865 265.2789 14.99493604249246Epoch: 2026-06-20T11:05Z
TLE epoch observation values (Epoch: 2026-06-20T11:05:55.108Z)
Latitude
-0.00003°
Longitude
64.69847°
Altitude
571.739 km
Speed
7.575 km/s
True Right ascension
09h 19m 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
00:54:26
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
568.07 km
Perigee altitude
562.836 km
Semi-major axis
6,943.59 km
Eccentricity
0.00038
Inclination
97.4094°
RAAN
139.8548°
Arg. of periapsis
94.8865°
True anomaly
265.23586°
Mean anomaly
265.2789°
Eccentric anomaly
265.25738°
Mean motion
3.75117 °/min
Orbital period
95.97 mins
BSTAR
0.00018245
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Other satellites on launch #122 in the year 2021 (2021-12-10 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.SHIJIAN 6 05A (SJ-6 05A) 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 | 2026-06-22 20:54:52.098Z | 101.375° ESE | 2026-06-22 20:56:52.098Z | 68.623° E | 16.105° | 2026-06-22 20:58:52.098Z | 34.993° NE |
| 5 mins | 2026-06-22 22:29:52.098Z | 212.116° SW | 2026-06-22 22:31:52.098Z | 265.737° W | 30.273° | 2026-06-22 22:34:52.098Z | 325.856° NNW |
| 5 mins | 2026-06-23 10:09:52.098Z | 55.314° ENE | 2026-06-23 10:11:52.098Z | 106.429° ESE | 26.396° | 2026-06-23 10:14:52.098Z | 157.404° SSE |
| 4 mins | 2026-06-23 11:44:52.098Z | 321.481° NNW | 2026-06-23 11:46:52.098Z | 283.121° WNW | 18.21° | 2026-06-23 11:48:52.098Z | 250.554° 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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