Resourcesat-1

RESOURCESAT-1 (IRS-P6)
Organization ISRO
Mission Type Earth observation
Satellite of Earth
Launch October 17, 2003 by PSLV-C5
Launch site Satish Dhawan Space Centre, Sriharikota
Mission duration 5 years
Mass 1360 kg (launch)
Webpage http://www.isro.org/pslvc5/index.html
Orbital elements
Semi-major axis 7195.11 km
Eccentricity 0.001
Inclination 98.69 degrees
Orbital Period 101.35 minutes
Right ascension of the ascending node 76.6115 degrees
Argument of perigee 102.0507 degrees
Instruments
Cameras LISS-4: 5.8 meter multispectral, LISS-3: 23.5 meter multispectral, AWiFS: 56 meter multispectral

RESOURCESAT-1 (also known as IRS-P6) is an advanced remote sensing satellite built by Indian Space Research Organization (ISRO). The tenth satellite of ISRO in IRS series, RESOURCESAT-1 is intended to not only continue the remote sensing data services provided by IRS-1C and IRS-1D, both of which have far outlived their designed mission lives, but also vastly enhance the data quality.

Launch

The 1360 kg RESOURCESAT-1 was launched into an 817 km high polar sun synchronous orbit by the eighth flight of India's Polar Satellite Launch Vehicle (PSLV-C5).[1]

Payloads

RESOURCESAT-1 carries three cameras[2] similar to those of IRS-1C and IRS-1D but with vastly improved spatial resolutions - a high resolution Linear Imaging Self Scanner (LISS-4) operating in three spectral bands in the visible and Near Infrared Region (VNIR) with 5.8 metre spatial resolution and steerable up to 26 degrees across track to obtain stereoscopic imagery and achieve five-day revisit capability; a medium resolution LISS-3 operating in three spectral bands in VNIR and one in Short Wave Infrared (SWIR) band with 23.5 metre spatial resolution; and an Advanced Wide Field Sensor (AWiFS) operating in three spectral bands in VNIR and one band in SWIR with 56 metre spatial resolution.

Short Wave Infrared bands for LISS-III[3]
Spectral Band Wavelength Resolution
Band 1 0.52 - 0.59 µm 24 m
Band 2 0.62 - 0.68 µm 24 m
Band 3 0.77 - 0.86 µm 24 m
Band 4 1.55 - 1.70 µm 24 m
AWiFR Spectral Bands [3]
Spectral Band Wavelength Resolution
Band 1 0.52 - 0.59 µm 56 m
Band 2 0.62 - 0.68 µm 56 m
Band 3 0.77 - 0.86 µm 56 m
Band 4 1.55 - 1.70 µm 56 m

RESOURCESAT-1 also carries a solid state recorder with a capacity of 120 GigaBits to store the images taken by its cameras which can be read out later to the ground stations.[4]

References

  1. ↑ "Overview of the Resourcesat-1 (IRS-P6)" (PDF). U.S. Department of the Interior. U.S. Geological Survey. p. 27. Retrieved March 20, 2013.
  2. ↑ "IRS-P6 Resourcesat-1". European Space Agency. Retrieved March 20, 2013.
  3. 1 2 NASA. "Sensor Compare" (PDF). Retrieved 9 August 2013.
  4. ↑ "Encyclopedia Astronautica : IRS". astronautix.com. Retrieved March 20, 2013.

See also

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