CBERS-4

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CBERS-4
CBERS line draw.jpeg
Mission typeRemote sensing
OperatorCNSA / INPE[1]
COSPAR ID2014-079A
SATCAT no.40336
WebsiteCBERS-4
Mission duration3 years planned[2]
Spacecraft properties
Spacecraft typeCBERS
Bus[1]
Launch mass1,980 kilograms (4,370 pounds)[2]
Power2,300 watts[2]
Start of mission
Launch date7 December 2014, 03:26 (2014-12-07UTC03:26Z) UTC
RocketChang Zheng 4B
Launch siteTaiyuan Satellite Launch Center
Orbital parameters
Reference systemGeocentric
RegimeSun-synchronous
Semi-major axis7,151.60 kilometers (4,443.80 miles)[3]
Eccentricity0.0001633[3]
Perigee altitude779 kilometers (484 miles)[3]
Apogee altitude781 kilometers (485 miles)[3]
Inclination98.54 degrees[3]
Period100.32 minutes[3]
Epoch25 January 2015, 09:18:29 UTC[3]
 

China–Brazil Earth Resources Satellite 4 (CBERS-4), also known as Ziyuan I-04 or Ziyuan 1E, is a remote sensing satellite intended for operation as part of the China–Brazil Earth Resources Satellite program between the Chinese and Brazilian National Institute for Space Research.[1] The fifth CBERS satellite to fly, it was successfully launched on 7 December 2014. It replaces CBERS-3 which was lost in a launch failure in December 2013.

Spacecraft[]

CBERS-4 is a 1,980-kilogram (4,370 lb) spacecraft based on the satellite bus.[1] It was developed by the China Academy of Space Technology, in partnership with Brazil, at a cost of US$125 million for each party. The spacecraft have a single solar array which provides power to its systems, generating 2,300 watts of electrical power, and have a design life of three years.[2]

The CBERS-4 spacecraft carries four instruments: MUXCam, a multispectral camera; PanMUX, a panchromatic imager; the Infrared Medium Resolution Scanner, or IRSCAM, and WFICAM, a wide-field imaging camera.[4] These cameras will be used to observe a swath of 120 kilometres (75 mi) of landmass at a time, enabling the satellite to scan the entire surface of the planet every 26 days, with a spatial resolution of up to 20 metres (66 ft).[5]

CBERS-4 was initially scheduled to be launched in 2015, however after the loss of CBERS-3 at launch in December 2013, China and Brazil agreed to accelerate the production of CBERS-4 by 1 year.[6] The satellite will restore the Brazilian government's ability to observe its own territory following a 4.5-year gap caused by the failure of CBERS-2B and CBERS-3.

Launch[]

A Chang Zheng 4B carrier rocket was used to launch CBERS-4. The launch took place at 03:26 UTC on 7 December 2014, using at the Taiyuan Satellite Launch Center. The satellite was successfully placed into a sun-synchronous orbit.

See also[]

References[]

  1. ^ a b c d Krebs, Gunter. "CBERS 3, 4, 4B / ZY 1D, 1E, 1E2". Gunter's Space Page. Retrieved 7 December 2014.
  2. ^ a b c d "CBERS-3 & 4 (China-Brazil Earth Resources Satellite) - 2nd Generation Satellite Series". Earth Observation Portal. European Space Agency. Retrieved 7 December 2014.
  3. ^ a b c d e f g "CBERS-4 Satellite details 2014-079A NORAD 40336". N2YO. 25 January 2015. Retrieved 25 January 2015.
  4. ^ "CBERS - Satélite Sino-Brasileiro de Recursos Terrestres". INPE. Archived from the original on 3 December 2013. Retrieved 7 December 2014.
  5. ^ "Brasil vai ao espaço via China" [Brazil goes to space through China]. Gazeta do Povo (in Portuguese). 2 December 2013. Retrieved 7 December 2014.
  6. ^ "Lançamento do CBERS-3" (in Portuguese). INPE. 9 December 2013. Archived from the original on 12 December 2013. Retrieved 7 December 2014.

External links[]


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