CARTOSAT-2
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| Organization | ISRO |
|---|---|
| Mission Type | Earth observation |
| Satellite of | Earth |
| Launch | January 10, 2007 on PSLV-C7 |
| Launch site | Sriharikota |
| Mission duration | 5 years |
| Mass | 680 kg (launch) |
| Webpage | http://www.isro.org/pslv-c7/pg6.html |
| Orbital elements | |
| Altitude | 630 km |
| Inclination | 97.91 degrees |
| Orbital per day | 14 |
| Revisit | 4 days |
| Repetivity | 310 days |
| Instruments | |
| Payload | One panchromatic camera |
| Spatial Resolution | Less than 1 metre |
| Swath | 9.6 km |
| Power | Solar array generating 900 W, two 18 Ah Ni-Cd batteries |
| Spectral Band | 0.5 - 0.85 micrometre |
| Data rate | 336 Mbit/s |
| Solid State Recorder | 64 GB |
CARTOSAT 2 is an Earth observation satellite in a sun-synchronous orbit. The satellite was built, launched and maintained by the Indian Space Research Organisation. Weighing around 680 kg at launch, its applications will mainly be towards cartography in India. It was launched by the PSLV on January 10, 2007.
CARTOSAT-2 carries a state-of-the-art panchromatic (PAN) camera that take black and white pictures of the earth in the visible region of the electromagnetic spectrum. The swath covered by these high resolution PAN cameras is 9.6 km and their spatial resolution is less than 1 metre. The satellite can be steered up to 45 degrees along as well as across the track.
CARTOSAT-2 is an advanced remote sensing satellite capable of providing scene-specific spot imagery. The data from the satellite will be used for detailed mapping and other cartographic applications at cadastral level, urban and rural infrastructure development and management, as well as applications in Land Information System (LIS) and Geographical Information System (GIS).
The first imagery, received on 12th Jan 2007, covered a length of 240 km from Paonta Sahib in Shivalik region to Delhi. Another set of imagery of about 50 km length covered Radha Nagari to Sagoan in Goa. Analysis of the first imagery received at National Remote Sensing Agency's data reception station at Shadnagar, near Hyderabad, confirmed excellent performance of the on-board camera.
Cartosat-2 can produce images of up to 80 cm in resolution, compared to the 100 cm (1 m) offered by Ikonos. In the past, India has been buying images from Ikonos at about $20 per square kilometer of imagery. With Cartosat-2 offering better resolution at twenty times lower cost per sq m of imagery, buying images from Ikonos is likely to decline in future. Currently, India buys images worth about Rupees 2 crore a year from Ikonos.
