SJ-7, 28737
Orbit data source: Space-Track
SJ-7, 28737 is a payload satellite owned by CASC (CN) in SSO that was launched on Tue, 05 Jul 2005 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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28737 intel report (Beta)
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Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
SAST
Mission
Operational Civil Technology
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 + 1 Pan, 1.0 m
Radar Cross Section
6.000 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 18 hours ago
TLE from 18 hours ago
0 SJ-7
1 28737U 05024A 26078.08401965 .00007476 00000-0 34796-3 0 9990
2 28737 97.7386 105.8132 0015680 351.3259 8.7702 15.20135700134339Epoch: 2026-03-19T02:00Z
TLE epoch observation values (Epoch: 2026-03-19T02:00:59.297Z)
Latitude
-0.00002°
Longitude
-101.07239°
Altitude
497.843 km
Speed
7.622 km/s
True Right ascension
07h 03m 15s
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
01:03:05
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
513.2 km
Perigee altitude
491.622 km
Semi-major axis
6,880.548 km
Eccentricity
0.00157
Inclination
97.7386°
RAAN
105.8132°
Arg. of periapsis
351.3259°
True anomaly
8.79765°
Mean anomaly
8.7702°
Eccentric anomaly
8.78392°
Mean motion
3.80284 °/min
Orbital period
94.67 mins
BSTAR
0.00034796
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Other satellites on launch #24 in the year 2005 (2005-07-05 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.SJ-7 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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-03-20 01:50:00.683Z | 168.637° S | 2026-03-20 01:53:00.683Z | 184.141° SSW | 43.552° | 2026-03-20 01:56:00.683Z | 345.698° N |
| 6 mins | 2026-03-20 14:55:00.683Z | 0.117° NNE | 2026-03-20 14:58:00.683Z | 258.021° W | 39.153° | 2026-03-20 15:01:00.683Z | 207.219° SW |
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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Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
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