ResourceSat-2
| ResourceSat-2 | |
|---|---|
| Type: | Earth observation satellite |
| Country: |
 India
|
| Operator: |
 ISRO
|
| COSPAR-ID : | 2011-015A |
| Mission dates | |
| Dimensions: | 1206 kg |
| Begin: | April 20, 2011 |
| Starting place: | SHAR FLP |
| Launcher: | PSLV-XL C-16 |
| Status: | in orbit, active |
| Orbit data | |
| Rotation time : | 101.35 min |
| Track height: | 822 km + 20 km |
| Orbit inclination : | 98.731 ° + 0.2 ° |
ResourceSat-2 is an Indian earth observation satellite from the Indian Remote Sensing series of ISRO .
On April 20, 2011 at 04:42 UTC it was converted into a circular polar and polar shape by a PSLV launcher from the Satish Dhawan Space Center together with the small satellites YouthSat (Indo-Russian, 92 kg) and X-SAT (Singapore, 106 kg) Sun-synchronous earth orbit brought with an orbit inclination of around 98.7 degrees. The separation from the rocket took place after a total flight time of about 1,080 seconds at an altitude of just over 827 kilometers. Its purpose is to assist scientists in measuring soil contamination, monitoring water resources and land use, and providing data for security authorities. It also carries an experimental monitoring and identification system (AIS = Automatic Identification System) for ships to collect their position, speed and other information. This was built by COMDEV from Canada . The expected service life is five years.
The satellite carries three cameras that work in the visible and infrared range and deliver a maximum resolution of 5.8 meters. They are further developed versions of the cameras that were used in the ResourceSat-1 , which was launched in 2003 . With the high-resolution line scanner LISS-4 (Linear Imaging Self Scanner), the swath width has been increased from 23 to 70 km.
| payload | LISS-4 | LISS-3 | AWiFS |
|---|---|---|---|
| resolution | 5.8 m | 23.5 m | 56 m |
| Swath width | 70 km | 141 km | 740 km |
| Spectral bands | 0.52-0.59 µm 0.62-0.68 µm 0.77-0.86 µm |
0.52-0.59 µm 0.62-0.68 µm 0.77-0.86 µm 1.55-1.70 µm |
0.52-0.59 µm 0.62-0.68 µm 0.77-0.86 µm 1.55-1.70 µm |
| Color depth | 10 bits | 10 bits | 12 bit |
| Data rate | 105 MBPS | 105 MBPS | 105 MBPS |
The satellite uses reaction wheels , magnetic torquers and hydrazine thrusters for stabilization . The solar cells deliver an output of 1,250 W (End Of Life) and are supplemented by two nickel-cadmium batteries with a capacity of 24 Ah. The recorded images are stored on two solid-state drives with a capacity of 200 gigabytes each.
Web links
- ISRO: Brochure to start
Individual evidence
- ↑ a b c d e RESOURCESAT-2. (No longer available online.) ISRO, April 20, 2011, archived from the original on April 24, 2011 ; Retrieved April 28, 2011 .
- ↑ Thomas Weyrauch: PSLV-C16 brings three satellites into space. raumfahrer.net, April 20, 2011, accessed April 28, 2011 .
- ↑ Indian rocket reaches space with observation satellite. spaceflightnow.com, April 20, 2011, accessed April 28, 2011 .