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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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<iframe src="https://www.satcat.com/sats-embedded/28220?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/28220?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

28220, 2004-012A

Orbit

SSO

Last TLE update

17 hours ago

Origin

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

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 (21 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

TLE from 17 hours ago

0 TANSUO 1
1 28220U 04012A   25225.87864088  .00009223  00000-0  38105-3 0  9992
2 28220  97.9115 280.5582 0007222  30.3595 329.8058 15.24228522164139

Epoch: 2025-08-13T21:05Z

TLE epoch observation values (Epoch: 2025-08-13T21:05:14.572Z)

Latitude

0.00001°

Longitude

1.69687°

Altitude

491.895 km

Speed

7.621 km/s

True Right ascension

18h 42m 13s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

11.32159°

Longitude

0.87541°

Altitude

490.616 km

Speed

7.623 km/s

Apparent Right ascension

17h 57m 41s

Apparent Declination

-13° 29' 56"

Sunlit

Object is in full shadow

Visualization observer readout

Local Sidereal Time

05:00:40

Azimuth

330.647° NNW

Elevation

-60.764°

Doppler factor

Orbital elements

Apogee altitude

495.046 km

Perigee altitude

485.125 km

Semi-major axis

6,868.223 km

Eccentricity

0.00072

Inclination

97.9115°

RAAN

280.5582°

Arg. of periapsis

30.3595°

True anomaly

329.76415°

Mean anomaly

329.8058°

Eccentric anomaly

329.78498°

Mean motion

3.81309 °/min

Orbital period

94.41 mins

BSTAR

0.00038105

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

NAXING 1, 28221

CZ-2C R/B, 28222

CZ-2C DEB, 28223 (Decayed)

CZ-2C DEB, 28224 (Decayed)

CZ-2C DEB, 28225 (Decayed)

CZ-2C DEB, 28226 (Decayed)

CZ-2C DEB, 28227 (Decayed)

CZ-2C DEB, 28232 (Decayed)

CZ-2C DEB, 28233 (Decayed)

CZ-2C DEB, 35417 (Decayed)

TANSUO 1 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.
6 mins	2025-08-14 16:33:05.314Z	14.787° NNE	2025-08-14 16:36:05.314Z	51.22° ENE	44.281°	2025-08-14 16:39:05.314Z	190.011° SSW
4 mins	2025-08-15 03:11:05.314Z	109.908° ESE	2025-08-15 03:12:05.314Z	81.883° E	26.649°	2025-08-15 03:15:05.314Z	12.744° NNE