Resourcesat-1


Resourcesat-1 is an advanced remote sensing satellite built by Indian Space Research Organization. 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.

Instruments

Resourcesat-1 carries three cameras similar to those of IRS-1C and IRS-1D but with vastly improved spatial resolutions - a high resolution Linear Imaging Self-Scanning Sensor-4 operating in three spectral bands in the Visible and Near Infrared Region with 5.8 metre spatial resolution and steerable up to 26° across track to obtain stereoscopic imagery and achieve five-day revisit capability; a medium resolution Linear Imaging Self-Scanning Sensor-3 operating in three spectral bands in VNIR and one in Short Wave Infrared band with 23.5 metre spatial resolution; and an Advanced Wide Field Sensor operating in three spectral bands in VNIR and one band in SWIR with 56 metre spatial resolution.
Spectral BandWavelengthResolution
Band 10.52 - 0.59 μm23.5 m
Band 20.62 - 0.68 μm23.5 m
Band 30.77 - 0.86 μm23.5 m
Band 41.55 - 1.70 μm23.5 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.