Q. Consider the following comparisons between the Resourcesat-1 and Resourceset-2: 1. The Resourceset-2 will be able to collect data from a wider strip of the Earth’s surface 2. The Resourceset -2 will provide remote sensing data services for entire globe, in contrast with some selected area by Resourcesat-1 3. The Resourcesat-2 has been launched with additional payload known as AIS (Automatic Identification System) from COMDEV, Canada as an experimental payload for ship surveillance in VHF band Which among the above statement is / are correct?
Answer: 1 & 3 are correct
Notes: The Resourcesat was launched recently via the PSLV C-16. The first statement which says that Resourceset-2 will be able to collect data from a wider strip of the Earth`s surface is correct. The profile page of Resourcesat-2 on ISRO website mentions that important changes in RESOURCESAT-2 compared to RESOURCESAT-1 are- Enhancement of LISS-4 multispectral swath from 23 km to 70 km and improved radiometric accuracy from 7 bits to 10 bits for LISS-3 and LISS-4 and 10 bits to 12 bits for AWIFS. Besides, suitable changes, including miniaturization in payload electronics, have been made in RESOURCESAT-2. The Swath width means the strip of the Earth`s surface from which data are collected by a satellite.
Statement 2 is NOT correct, because Resourcesat-1 was doing the same job and now Resourcesat-2 extends that.
Statement 3 is correct fact about the latest launch. Polar Satellite Launch Vehicle (PSLV)-C16 has on 20.4.2011 successfully launched India`s RESOURCESAT-2 satellite, the joint Indo-Russian YOUTHSAT satellite, and Singapore`s first satellite X-SAT. Resourcesat-2 is India`s 18th remote sensing satellite.
