Mission

	IRS-1C (1995) and IRS-1D (1997) are advanced remote sensing satellites  providing operational data services to users as compared to IRS-1A/1B missions.
	Multiresolution twins in circular sun synchronous orbit.
	Characterised by improved spatial resolution, extended spectral bands, off-nadir  viewing option (±26º) for PAN camera and faster revisit capability.

Mission Overview

	IRS-1C	IRS-1C
Altitude (km)	817	780
Orbits / Cycle	341	358
Repetivity (days)	24	25
Period (minutes)	101.35	100.55
Revisit (days)	5	5

Data Overview
Two chains in X-Band

	84.903 Mbps (PAN).
	42.415 Mbps (LISS-3 + WiFS).

Imaging Sensors

Senor	Swath (km)	Resolution(m)	Spectral Bands(µm)
PAN	70	5.8	0.5-0.75
LISS-3         VNIR         SWIR	141   148	23.5   70.5	0.52-   0.86   1.55-   1.70
WiFS	810	188	0.62-0.86

Panchromatic Camera (PAN)

	Spatial resolution of 5.8 meter, Swath 70 km.
	Operates in the spectral range of 0.5-0.75 µm Off nadir viewing capability upto ±26º (±398  kms).
	Revisit frequency of 5 days.

Linear Imaging Self-Scanner (LISS-3)

	Multispectral camera operating in visible and near-IR (VNIR), Short Wave Infrared (SWIR)  bands.
	Resolution of 23.5 meter for VNIR and 70.5 meter for SWIR.
	Swath of 141 km for VNIR and 148 km for SWIR band.

Wide Field Sensor (WiFS)

	Multispectral camera operating in visible and near-IR (VNIR).
	Spatial resolution of 188 meter, Wide swath of 810 km.
	Capability to observe the same region once every five days.