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CBERS 1, 25940

Orbit data source: Space-Track

CBERS 1, 25940 is a CN and BR payload satellite in SSO that was launched on Thu, 14 Oct 1999 UTC via a CHANG ZHENG 4B launch vehicle from the Taiyaun Space Center, China (TSC). 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/25940?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/25940?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

25940, 1999-057A

Orbit

SSO

Last TLE update

16 hours ago

Origin

China Aerospace Science and Technology Corporation (CASC) (Unknown / CHBZ)

Manufacturer

CAST

Mission

Civil Imaging

Bus & Motor

ZY, AOCS 20N

Mass

1,540 kg wet, ~1,450 kg dry

Launch date (UTC)

1999-10-14 (26 years ago)

Launch vehicle

CHANG ZHENG 4B

Launch site

Taiyaun Space Center, China (TSC)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 1 Pan, 9 m

Radar Cross Section

9.469 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 16 hours ago

0 CBERS 1
1 25940U 99057A   25191.83235973  .00000123  00000-0  57427-4 0  9993
2 25940  98.8393 186.9069 0003851 290.4003  69.6769 14.36792795348490

Epoch: 2025-07-10T19:58Z

TLE epoch observation values (Epoch: 2025-07-10T19:58:35.88Z)

Latitude

0.00001°

Longitude

-41.73558°

Altitude

771.093 km

Speed

7.469 km/s

True Right ascension

12h 27m 37s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-43.89821°

Longitude

130.39213°

Altitude

784.789 km

Speed

7.461 km/s

Apparent Right ascension

19h 51m 30s

Apparent Declination

-86° 02' 43"

Sunlit

Object is in full shadow

Visualization observer readout

Local Sidereal Time

00:21:43

Azimuth

184.66° SSW

Elevation

-38.312°

Doppler factor

Orbital elements

Apogee altitude

769.009 km

Perigee altitude

763.506 km

Semi-major axis

7,144.394 km

Eccentricity

0.00039

Inclination

98.8393°

RAAN

186.9069°

Arg. of periapsis

290.4003°

True anomaly

Unknown

Mean anomaly

69.6769°

Eccentric anomaly

Unknown

Mean motion

3.59414 °/min

Orbital period

100.16 mins

BSTAR

0.000057427

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Other satellites on launch #57 in the year 1999 (1999-10-14 UTC)

CZ-4 DEB, 26138 (Decayed)

CZ-4 DEB, 26139 (Decayed)

CZ-4 DEB, 26140

CZ-4 DEB, 26141 (Decayed)

CZ-4 DEB, 26142

CZ-4 DEB, 26143

CZ-4 DEB, 26144 (Decayed)

CZ-4 DEB, 26145 (Decayed)

CZ-4 DEB, 26148 (Decayed)

CZ-4 DEB, 26149 (Decayed)

CZ-4 DEB, 26150

CZ-4 DEB, 26151

CZ-4 DEB, 26152

CZ-4 DEB, 26153 (Decayed)

CBERS 1 Visibility forecast

Observer location: undefined°, undefined°

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.
8 mins	2025-07-11 13:15:35.471Z	355.145° N	2025-07-11 13:19:35.471Z	292.112° WNW	32.529°	2025-07-11 13:23:35.471Z	226.475° WSW
6 mins	2025-07-11 22:52:35.471Z	114.387° SE	2025-07-11 22:55:35.471Z	56.854° ENE	27.727°	2025-07-11 22:58:35.471Z	12.522° NNE
6 mins	2025-07-12 00:31:35.471Z	220.051° SW	2025-07-12 00:34:35.471Z	273.772° WNW	25.271°	2025-07-12 00:37:35.471Z	316.7° NNW

Authenticating...

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Check out CBERS 1, 25940 on other resources

View CBERS 1, 25940 on NASA - NSSDCA Website

View CBERS 1, 25940 on Heavens-Above

View CBERS 1, 25940 on Keep Track

View CBERS 1, 25940 on Celestrak

View CBERS 1, 25940 on Gunter's Space Page

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