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Resourcesat

IRS P6 / Resourcesat-1 is the tenth satellite of ISRO in IRS series, intended to not only continue the remote sensing for IRS 1C/1D, with enhanced characteristics. It has multi spectral 5 meter Resolution data with 23 Km swath, Improved SWIR band Resolution of 23 meters, and 10 bit AwiFS data with Resolution improved from 188 to 55 meter. RESOURCESAT-1 was launched by PSLV-C5 on October 17, 2003. It was placed in an 820 km polar Sun Synchronous Orbit. The satellite carries three cameras, namely,

1. Linear Imaging Self Scanner (LISS-4) in 3 spectral bands in the Visible and Near Infrared Region (VNIR) with 5.8 m spatial resolution, 23 km (multi-spectral) and 70 km (mono) swath and steerable up to ± 26 degree across track to achieve a five day revisit capability
2. LISS-3 camera in 3 spectral bands in the Visible and Near Infrared Region and one in Short Wave Infrared (SWIR) band with 23.5 m spatial resolution and 141 km swath
3. Advanced Wide Field Sensor (AWiFS) in 3 spectral bands in the Visible and Near Infrared Region and one band in SWIR with 56 m spatial resolution and a swath of 730 km

The satellite successfully completed its designed mission life and was still providing limited services by 2013.

Resourcesat-2A was approved with an estimated cost of `200.00 Cr. Resourcesat-2A is conceived as a follow-on mission to provide continuity of services with enhanced capabilities, which will be mainly for crop applications, vegetation dynamics and natural resources census applications.

In its thirty eighth flight (PSLV-C36), ISRO's Polar Satellite Launch Vehicle successfully launched the 1,235 kg RESOURCESAT-2A Satellite December 07, 2016 from the Satish Dhawan Space Centre SHAR, Sriharikota. This is the thirty seventh consecutively successful mission of PSLV. After PSLV-C36 lift-off at 10:25 am IST from the First Launch Pad with the ignition of the first stage, the subsequent important flight events, namely, strap-on ignitions and separations, first stage separation, second stage ignition, payload fairing separation, second stage separation, third stage ignition and separation, fourth stage ignition and cut-off, took place as planned. After a flight of 17 minutes 05 seconds, the vehicle achieved a polar Sun Synchronous Orbit of 824 km height inclined at an angle of 98.725 degree to the equator (very close to the intended orbit) and 47 seconds later, RESOURCESAT-2A was separated from the PSLV fourth stage.

After separation, the two solar arrays of RESOURCESAT-2A deployed automatically and ISRO's Telemetry, Tracking and Command Network (ISTRAC) at Bangalore took over the control of the satellite. In the coming days, the satellite will be brought to its final operational configuration following which it will begin to provide imagery from its three cameras. The data sent by RESOURCESAT-2A will be useful for agricultural applications like crop area and crop production estimation, drought monitoring, soil mapping, cropping system analysis and farm advisories generation.

Like its predecessors RESOURCESAT-1 and 2, RESOURCESAT-2A has a unique 3-Tier imaging system with Advanced Wide Field Sensor (AWiFS), Linear Imaging Self Scanner-3 (LISS-3) and Linear Imaging Self Scanner-4 (LISS-4) cameras. The AWiFS provides images with a sampling of 56 metres, a swath of 740 km and a revisit of 5 days whereas the LISS-3 provides 23.5 metre sampled images with 141 km swath and a repitivity of 24 days. LISS-4 provides 5.8 metre sampled images with 70 km swath and a revisit of 5 days.

	Multispectral mode : Selected 23.5 km swath in a total swath of 70 km. Or
	PAN mode : 70 km swath in a selected band (Red band nominal)