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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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<iframe src="https://www.satcat.com/sats-embedded/28737?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/28737?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

28737, 2005-024A

Orbit

SSO

Country

CN / PRC

Related business

China Aerospace Science and Technology Corporation (CASC) (CN)

Manufacturer

SAST

Mission

Operational Civil Technology

Bus & Motor

FY-1?, Unknown motor

Mass

~1,000 kg wet, ~1,000 kg dry

Launch date (UTC)

2005-07-05 (20 years ago)

Launch vehicle

CHANG ZHENG 2D

Launch site

Jiuquan Satellite Launch Center, China (JSC)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 1 Pan, 1.0 m

Radar Cross Section

6.000 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 8 hours ago

TLE from 8 hours ago

0 SJ-7
1 28737U 05024A   25243.55312055  .00011488  00000-0  60269-3 0  9998
2 28737  97.7579 261.5488 0016301 318.7196  41.2803 15.15806037104068

Epoch: 2025-08-31T13:16Z

TLE epoch observation values (Epoch: 2025-08-31T13:16:29.615Z)

Latitude

0.00003°

Longitude

82.45399°

Altitude

513.165 km

Speed

7.612 km/s

True Right ascension

17h 26m 11s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

12:47:11

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

526.757 km

Perigee altitude

504.282 km

Semi-major axis

6,893.656 km

Eccentricity

0.00163

Inclination

97.7579°

RAAN

261.5488°

Arg. of periapsis

318.7196°

True anomaly

41.40373°

Mean anomaly

41.2803°

Eccentric anomaly

41.34199°

Mean motion

3.792 °/min

Orbital period

94.94 mins

BSTAR

0.00060269

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Other satellites on launch #24 in the year 2005 (2005-07-05 UTC)

CZ-2D R/B, 28738

CZ-2D DEB, 28739 (Decayed)

CZ-2D DEB, 28740 (Decayed)

CZ-2D DEB, 28741 (Decayed)

CZ-2D DEB, 28742 (Decayed)

CZ-2D DEB, 28785 (Decayed)

CZ-2D DEB, 29217 (Decayed)

SJ-7 DEB, 44901 (Decayed)

SJ-7 DEB, 44902 (Decayed)

SJ-7 Visibility forecast

Observer location: undefined°, undefined°
Set Observer location

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	2025-09-01 00:30:29.144Z	119.16° SE	2025-09-01 00:33:29.144Z	62.419° ENE	20.692°	2025-09-01 00:35:29.144Z	24.603° NE
4 mins	2025-09-01 02:05:29.144Z	227.667° WSW	2025-09-01 02:07:29.144Z	271.709° WNW	20.622°	2025-09-01 02:09:29.144Z	309.666° NW
5 mins	2025-09-01 13:37:29.144Z	46.269° ENE	2025-09-01 13:39:29.144Z	95.524° ESE	28.212°	2025-09-01 13:42:29.144Z	158.751° S