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TANSUO 1, 28220

Orbit data source: Space-Track

TANSUO 1, 28220 is a payload satellite owned by CASC (CN) in SSO that was launched on Sun, 18 Apr 2004 UTC via a CHANG ZHENG 2C launch vehicle from the Xichang Space Center, China (XSC). 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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https://www.satcat.com/sats-embedded/28220?theme=dark&initialShowStats=false

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Identifier

28220, 2004-012A

Orbit

SSO

Country

CN / PRC

Related business

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

Manufacturer

DFH/HARB

Mission

Operational Civil Imaging

Bus & Motor

SY, Unknown motor

Mass

204 kg wet, 204 kg dry

Launch date (UTC)

2004-04-18 (22 years ago)

Launch vehicle

CHANG ZHENG 2C

Launch site

Xichang Space Center, China (XSC)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 1 Pan, 1.5 m

Radar Cross Section

2.043 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 20 hours ago

TLE from 20 hours ago

0 TANSUO 1
1 28220U 04012A   26171.18463165  .00011063  00000-0  34057-3 0  9995
2 28220  97.8685 249.4480 0005306  22.5113 337.6360 15.33824479211556

Epoch: 2026-06-20T04:25Z

TLE epoch observation values (Epoch: 2026-06-20T04:25:52.174Z)

Latitude

-0.00004°

Longitude

-85.42228°

Altitude

464.152 km

Speed

7.636 km/s

True Right ascension

16h 37m 47s

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

11:01:34

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

465.011 km

Perigee altitude

457.753 km

Semi-major axis

6,839.519 km

Eccentricity

0.00053

Inclination

97.8685°

RAAN

249.448°

Arg. of periapsis

22.5113°

True anomaly

337.61285°

Mean anomaly

337.636°

Eccentric anomaly

337.62443°

Mean motion

3.83711 °/min

Orbital period

93.82 mins

BSTAR

0.00034057

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Computing Atmospheric mass density...

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Other satellites on launch #12 in the year 2004 (2004-04-18 UTC)

CZ-2C DEB, 35417 (Decayed)

CZ-2C DEB, 28225 (Decayed)

CZ-2C DEB, 28226 (Decayed)

CZ-2C DEB, 28227 (Decayed)

CZ-2C R/B, 28222

CZ-2C DEB, 28232 (Decayed)

CZ-2C DEB, 28233 (Decayed)

CZ-2C DEB, 28224 (Decayed)

CZ-2C DEB, 28223 (Decayed)

NAXING 1, 28221

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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.

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TANSUO 1 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	2026-06-21 05:36:12.603Z	188.13° SSW	2026-06-21 05:39:12.603Z	259.003° W	34.548°	2026-06-21 05:42:12.603Z	332.077° NNW
5 mins	2026-06-21 18:34:12.603Z	349.553° N	2026-06-21 18:36:12.603Z	302.211° NW	31.336°	2026-06-21 18:39:12.603Z	221.423° SW

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Co-orbital & Co-planar RSOs

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

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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

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Check out TANSUO 1, 28220 on other resources

View TANSUO 1, 28220 on NASA - NSSDCA Website

View TANSUO 1, 28220 on Heavens-Above

View TANSUO 1, 28220 on Keep Track

View TANSUO 1, 28220 on Celestrak

View TANSUO 1, 28220 on Gunter's Space Page

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

TANSUO 1, 28220

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 20 hours ago

TLE from 20 hours ago

TLE epoch observation values (Epoch: 2026-06-20T04:25:52.174Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #12 in the year 2004 (2004-04-18 UTC)

TANSUO 1 Visibility forecast

Co-orbital & Co-planar RSOs

Check out TANSUO 1, 28220 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 20 hours ago