Showing default

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.

Loading next visibility...

Iframe embed code

<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

Optional secondary NORAD IDs

Max 10 NORAD IDs; Separated by commas

Initial load time (optional)

ISO8601 Format

TLE date request (optional)

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 (21 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, 1.7 m

Radar Cross Section

6.000 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 21 hours ago

TLE from 21 hours ago

0 SJ-7
1 28737U 05024A   26258.08761980  .00006934  00000-0  29989-3 0  9992
2 28737  97.7228 290.6609 0016842  81.0085 279.3056 15.22662956161700

Epoch: 2026-09-15T02:06Z

TLE epoch observation values (Epoch: 2026-09-15T02:06:10.350Z)

Latitude

-0.00004°

Longitude

-94.94081°

Altitude

499.043 km

Speed

7.616 km/s

True Right ascension

19h 22m 38s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow 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

15:24:46

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

506.364 km

Perigee altitude

483.213 km

Semi-major axis

6,872.925 km

Eccentricity

0.00168

Inclination

97.7228°

RAAN

290.6609°

Arg. of periapsis

81.0085°

True anomaly

279.11508°

Mean anomaly

279.3056°

Eccentric anomaly

279.21035°

Mean motion

3.80917 °/min

Orbital period

94.51 mins

BSTAR

0.00029989

Loading maneuver chart data...

Computing Atmospheric mass density...

Loading historical data...

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

SJ-7 DEB, 44901 (Decayed)

CZ-2D DEB, 35271 (Decayed)

CZ-2D DEB, 35272 (Decayed)

CZ-2D DEB, 31409 (Decayed)

CZ-2D DEB, 28740 (Decayed)

CZ-2D DEB, 35273 (Decayed)

CZ-2D DEB, 28741 (Decayed)

SJ-7 DEB, 44902 (Decayed)

CZ-2D DEB, 29217 (Decayed)

CZ-2D DEB, 28785 (Decayed)

CZ-2D DEB, 28742 (Decayed)

CZ-2D DEB, 28739 (Decayed)

CZ-2D R/B, 28738

Did you know?

You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

Click here to try in Sandbox

SJ-7 Visibility forecast

Loading observer location...
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.
6 mins	2026-09-16 01:53:37.619Z	140.264° SSE	2026-09-16 01:56:37.619Z	66.471° ENE	40.167°	2026-09-16 01:59:37.619Z	4.293° NNE
5 mins	2026-09-16 14:57:37.619Z	30.933° NE	2026-09-16 14:59:37.619Z	117.838° SE	56.499°	2026-09-16 15:02:37.619Z	179.52° S

Items per page:

1–2 of 2 items

of 1 page

Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

Please sign in to view Co-orbital & Co-planar RSOs.

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

CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

Authenticating...

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

Check out SJ-7, 28737 on other resources

View SJ-7, 28737 on NASA - NSSDCA Website

View SJ-7, 28737 on Heavens-Above

View SJ-7, 28737 on Keep Track

View SJ-7, 28737 on Celestrak

View SJ-7, 28737 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

SJ-7, 28737

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 21 hours ago

TLE from 21 hours ago

TLE epoch observation values (Epoch: 2026-09-15T02:06:10.350Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

SJ-7 Visibility forecast

Co-orbital & Co-planar RSOs

Check out SJ-7, 28737 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 21 hours ago