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: 3 days ago
TLE from 3 days ago
0 SJ-7
1 28737U 05024A 26170.98423206 .00006450 00000-0 28830-3 0 9997
2 28737 97.7282 201.1631 0016072 28.7494 331.4624 15.21578108148451Epoch: 2026-06-19T23:37Z
TLE epoch observation values (Epoch: 2026-06-19T23:37:17.649Z)
Latitude
-0°
Longitude
-61.36581°
Altitude
494.452 km
Speed
7.623 km/s
True Right ascension
13h 24m 39s
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
00:50:30
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
509.109 km
Perigee altitude
487.006 km
Semi-major axis
6,876.195 km
Eccentricity
0.00161
Inclination
97.7282°
RAAN
201.1631°
Arg. of periapsis
28.7494°
True anomaly
331.37426°
Mean anomaly
331.4624°
Eccentric anomaly
331.41835°
Mean motion
3.80646 °/min
Orbital period
94.58 mins
BSTAR
0.0002883
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-06-22 15:19:56.509Z | 341.602° N | 2026-06-22 15:21:56.509Z | 266.813° W | 33.616° | 2026-06-22 15:24:56.509Z | 214.888° SW |
| 5 mins | 2026-06-23 01:56:56.509Z | 152.992° SSE | 2026-06-23 01:58:56.509Z | 45.499° ENE | 42.535° | 2026-06-23 02:01:56.509Z | 353.247° N |
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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