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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
14 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 14 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
3.61269°
Longitude
139.43074°
Altitude
772.699 km
Speed
7.467 km/s
Apparent Right ascension
03h 15m 08s
Apparent Declination
-43° 00' 48"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
22:27:45
Azimuth
133.934° SE
Elevation
-15.247°
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.
7 mins2025-07-11 11:36:55.563Z45.761° ENE2025-07-11 11:40:55.563Z102.019° ESE21.328°2025-07-11 11:43:55.563Z142.295° SSE
7 mins2025-07-11 13:16:55.563Z345.318° N2025-07-11 13:19:55.563Z282.162° WNW32.342°2025-07-11 13:23:55.563Z224.686° SW
7 mins2025-07-11 22:51:55.563Z120.975° SE2025-07-11 22:54:55.563Z72.576° E28.036°2025-07-11 22:58:55.563Z10.091° NNE
7 mins2025-07-12 00:30:55.563Z213.116° SW2025-07-12 00:33:55.563Z259.713° W25.566°2025-07-12 00:37:55.563Z319.353° NNW
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