ISRO Releases Advanced Chandrayaan-2 Data for Moon’s Polar Regions
The Indian Space Research Organisation (ISRO) has collected and released advanced data from its Chandrayaan-2 lunar orbiter, providing crucial insights into the Moon’s polar regions. This data represents India’s significant contribution to future global lunar exploration efforts.
Key Findings
- Advanced radar mapping of lunar polar regions (80-90° latitude)
- Data reveals potential water-ice presence and surface properties
- First-ever L-band full-polarimetric mapping at 25m/pixel resolution
- 1,400 radar datasets processed into polarimetric mosaics
Advanced Radar Technology
The Dual Frequency Synthetic Aperture Radar (DFSAR) aboard Chandrayaan-2 has achieved a significant milestone as the first instrument to map the Moon using L-band in full-polarimetric mode at the highest resolution of 25 meters per pixel. This advanced radar technology transmits and receives signals in both vertical and horizontal directions, making it particularly effective for studying lunar surface characteristics.
Scientific Breakthrough
Scientists from the Space Applications Centre (SAC) in Ahmedabad have developed sophisticated data products that analyze:
- Potential presence of water-ice in polar regions
- Surface roughness measurements
- Dielectric constant – an electrical property indicating density and porosity
The algorithm for processing this full-polarimetric data was developed entirely indigenously by ISRO, showcasing India’s growing capabilities in space technology.
Significance for Lunar Exploration
These data products are particularly valuable because the Moon’s polar regions are believed to have preserved early chemical conditions from the solar system’s formation. This preservation offers important clues about planetary evolution and makes these regions prime targets for future exploration missions.
“This kind of ready-to-use data product on lunar polar regions has always been sought after, because it will provide holistic information to characterise the polar regions for future lunar exploration. These products complement hyperspectral data in studying the distribution of minerals on the Moon,” ISRO stated.
Data Accessibility
The derived Polar Mosaic products (Level 3C) have been released for public use and are freely available on the Indian Space Science Data Centre (ISSDC) PRADAN website, enabling global researchers to access this valuable information for their lunar studies.
