Search Publications
Understanding the mineralogy of a compositional anomaly north of the Korolev basin using Moon mineralogy mapper
Chaudhuri, N.; Kusuma, K. N.; Aravind Bharathvaj, S.
The work attempts to understand the mineralogy of the reported geochemical anomaly located in the north - northeast region of the Korolev basin using Moon Mineralogy Mapper (M3) onboard Chandrayaan -1 and other lunar datasets. To understand the mineralogy, colour composite images using integrated band depth parameters and mineral indice…
Dielectric characterization and polarimetric analysis of lunar north polar crater Hermite-A using Chandrayaan-1 Mini-SAR, Lunar Reconnaissance Orbiter (LRO) Mini-RF, and Chandrayaan-2 DFSAR data
Chauhan, Prakash; Singh, Awinash; Sharma, Aanchal +5 more
Studies of the lunar surface from Synthetic Aperture Radar (SAR) data have played a prominent role in the exploration of the lunar surface in recent times. This study uses data from SAR sensors from three Moon missions: Chandrayaan-1 Mini-SAR, Lunar Reconnaissance Orbiter (LRO) Mini-RF and Chandrayaan-2 Dual Frequency Synthetic Aperture Radar (DFS…
Chandrayaan-2 dual-frequency SAR: Further investigation into lunar water and regolith
Das, Anup; Putrevu, Deepak; Vachhani, J. G. +2 more
The Space Applications Centre (SAC), one of the major centers of the Indian Space Research Organization (ISRO), is developing a high resolution, dual-frequency Synthetic Aperture Radar as a science payload on Chandrayaan-2, ISRO's second moon mission. With this instrument, ISRO aims to further the ongoing studies of the data from S-band MiniSAR on…
Influence of the lunar ambience on dynamic surface hydration on sunlit regions of the Moon
Califorrniaa, E.
The accepted paradigm of a dry Moon has been upset by the recent detection of a wet Moon. EPOXI, NASA's extended mission for the Deep Impact spacecraft, observed and quantified dynamic surface hydration on sunlit regions of the Moon by infrared spectrometry in separate flybys. MIP CHACE, released from ISRO's Chandrayaan-1 spacecraft, detected H
Hybrid method for crater detection based on topography reconstruction from optical images and the new LU78287GT catalogue of Lunar impact craters
Lončarić, Sven; Wöhler, Christian; Salamunićcar, Goran +1 more
Impact craters are ubiquitous and well-studied structures of high geological relevance on the surfaces of the Earth's Moon, the terrestrial planets, the asteroids and the satellites of the outer planets. Therefore, it is not surprising that crater detection algorithms (CDAs) are one of the most studied subjects of image processing and analysis in …
Hard X-ray continuum from lunar surface: Results from High Energy X-ray spectrometer (HEX) onboard Chandrayaan-1
Banerjee, D.; Sreekumar, P.; Sudhakar, M. +10 more
The High Energy X-ray spectrometer (HEX) on Chandrayaan-1 was designed to study the photon emission in the range of 30-270 keV from naturally occurring radioactive decay of 238U and 232Th series nuclides from the lunar surface. The primary objective of HEX was to study the transport of volatiles on the lunar surface using rad…
Mapping lunar surface chemistry: New prospects with the Chandrayaan-2 Large Area Soft X-ray Spectrometer (CLASS)
Kellett, B. J.; Narendranath, S.; Sreekumar, P. +4 more
Surface chemistry of airless bodies in the solar system can be derived from remote X-ray spectral measurements from an orbiting spacecraft. X-rays from planetary surfaces are excited primarily by solar X-rays. Several experiments in the past have used this technique of X-ray fluorescence for deriving abundances of the major rock forming elements. …
Characterization of lunar soils through spectral features extraction in the NIR
Mall, U.; Wöhler, C.; Grumpe, A. +2 more
Recently launched hyper-spectral instrumentation with ever-increasing data return capabilities deliver the remote-sensing data to characterize planetary soils with increased precision, thus generating the need to classify the returned data in an efficient way for further specialized analysis and detection of features of interest. This paper invest…
New results and questions of lunar exploration from SELENE, Chang'E-1, Chandrayaan-1 and LRO/LCROSS
Jin, Shuanggen; Arivazhagan, Sundaram; Araki, Hiroshi
The moon has longstanding questions such as lunar environments, origin, formation and evolution, magnetization of crustal rocks, internal structure and possible life. The recent lunar missions, e.g., SELenological and ENgineering Explorer "KAGUYA" (SELENE), Chang'E-1, Chandrayaan-1, and Lunar Reconnaissance Orbiter/Lunar CRater Observation and Sen…
Spatial heterogeneity in the radiogenic activity of the lunar interior: Inferences from CHACE and LLRI on Chandrayaan-1
Bhardwaj, Anil; Sridharan, R.; Ahmed, S. M. +3 more
In the past, clues on the potential radiogenic activity of the lunar interior have been obtained from the isotopic composition of noble gases like Argon. Excess Argon (40) relative to Argon (36), as compared to the solar wind composition, is generally ascribed to the radiogenic activity of the lunar interior. Almost all the previous estimates were…