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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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Identifier
25940, 1999-057A
Orbit
SSO
Last TLE update
16 hours ago
Origin
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
1
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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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 mins2025-07-11 13:15:35.471Z355.145° N2025-07-11 13:19:35.471Z292.112° WNW32.529°2025-07-11 13:23:35.471Z226.475° WSW
6 mins2025-07-11 22:52:35.471Z114.387° SE2025-07-11 22:55:35.471Z56.854° ENE27.727°2025-07-11 22:58:35.471Z12.522° NNE
6 mins2025-07-12 00:31:35.471Z220.051° SW2025-07-12 00:34:35.471Z273.772° WNW25.271°2025-07-12 00:37:35.471Z316.7° NNW
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