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CBERS 1, 25940

Orbit data source: Space-Track

CBERS 1, 25940 is a 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

10 hours ago

Origin

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

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 10 hours ago

0 CBERS 1
1 25940U 99057A   25151.85926804  .00000194  00000-0  81707-4 0  9997
2 25940  98.8382 145.8678 0005819  51.4238 308.7468 14.36774754342761

Epoch: 2025-05-31T20:37Z

TLE epoch observation values (Epoch: 2025-05-31T20:37:20.758Z)

Latitude

-0.00002°

Longitude

-53.0623°

Altitude

769.506 km

Speed

7.471 km/s

True Right ascension

09h 43m 28s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-60.55695°

Longitude

-36.74307°

Altitude

794.021 km

Speed

7.455 km/s

Apparent Right ascension

06h 39m 56s

Apparent Declination

-62° 13' 55"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

16:01:21

Azimuth

213.538° SW

Elevation

-57.449°

Doppler factor

Orbital elements

Apogee altitude

770.474 km

Perigee altitude

762.16 km

Semi-major axis

7,144.454 km

Eccentricity

0.00058

Inclination

98.8382°

RAAN

145.8678°

Arg. of periapsis

51.4238°

True anomaly

Unknown

Mean anomaly

308.7468°

Eccentric anomaly

Unknown

Mean motion

3.5941 °/min

Orbital period

100.16 mins

BSTAR

0.000081707

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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.
9 mins	2025-06-01 12:14:51.003Z	23.076° NE	2025-06-01 12:18:51.003Z	99.975° ESE	41.624°	2025-06-01 12:23:51.003Z	183.028° SSW
4 mins	2025-06-01 13:55:51.003Z	318.768° NNW	2025-06-01 13:57:51.003Z	291.406° WNW	15.33°	2025-06-01 13:59:51.003Z	266.59° W
9 mins	2025-06-01 23:28:51.003Z	162.546° S	2025-06-01 23:32:51.003Z	137.27° SSE	44.521°	2025-06-01 23:37:51.003Z	347.593° N

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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