Search Publications
Applying machine learning to a nonlinear spectral mixing model for mapping lunar soils composition using CHANDRAYAAN-1 M3 data
Mall, Urs; Surkov, Yehor; Kaydash, Vadym +4 more
We present a newly developed method which combines the nonlinear spectral mixing model of Shkuratov et al. (1999) with a machine learning algorithm to map the lunar regolith composition using spectral data. The new method performs orders of magnitude faster than the traditionally used numerical optimization approaches, allowing the mapping of rego…
On the origins of backscattered solar wind energetic neutral hydrogen from the Moon and Mercury
Verkercke, S.; Leblanc, F.; Tramontina, D. +8 more
The surfaces of planetary airless bodies are directly bombarded by solar particles. The most abundant of those particles are solar wind protons. In the case of the Moon, many in situ observations have shown that a significant portion of these incident solar-wind protons are backscattered as energetic neutral hydrogen atoms (ENA). Measurements of t…
Comparative analysis of photometric parameters over Apollo landing sites from Terrain Mapping Camera (Chandrayaan-1/2) and lab measured data
Arya, A. S.; Nagori, Rohit; Dagar, Aditya K.
Terrain Mapping Camera (TMC) onboard Chandrayaan-1/2 have provided high spatial resolution (∼5m) panchromatic images in three stereo-views of fore, nadir and aft, (-25⁰, 0⁰, 25⁰), respectively. This study presents the comparative analysis of photometric properties in visible domain from TMC and lab measured data over Apollo 11, 12, 16 and 17 landi…
Lithological mapping of Eratosthenes crater region using Moon Mineralogy Mapper of Chandrayaan-1
Kumaresan, P. R.; Saravanavel, J.; Palanivel, K.
Selenological exploration (lunar geology) involves mapping and delineation of different rock types and minerals present in the Moon. Various lunar missions with multi-spectral sensors provided preliminary information about the lithological and mineralogical occurrences on the Moon. The Chandrayaan-1 Moon Mineralogy Mapper (M3), provided…
Pyroxene chemistry and crystallization history of basaltic units in the Mare Humorum on the nearside of the Moon: Implications for the volcanic history of the region
Rajesh, V. J.; Thesniya, P. M.
Mare basalts are volcanic features on the lunar surface and are vital for understanding the Moon's volcanic and thermal history. The present study investigates the mineralogy and chemical variations of the mare basaltic units in the Mare Humorum on the Moon's nearside using orbital remote sensing data from recent lunar exploration missions. The pr…
Study of morphology and degradation of lunar craters using Chandrayaan-1 data
Srivastava, Pradeep; Jain, Vikrant; Khanna, Nitin +2 more
Impact craters are essential and dominant features of the lunar surface. Under the presence of a very thin atmosphere, the degradation of the lunar craters takes place possibly due to gravity, slope processes, or solar wind weathering. Hence, these craters act as tools to understand the properties and processes of the lunar surface. Our analysis i…
SMART-1 technology, scientific results and heritage for future space missions
Grande, M.; Koschny, D.; Grieger, B. +8 more
ESA's SMART-1 mission to the Moon achieved record firsts such as: 1) first Small Mission for Advanced Research and Technology; with spacecraft built and integrated in 2.5 years and launched 3.5 years after mission approval; 2) first mission leaving the Earth orbit using solar power alone; 3) most fuel effective mission (60 L of Xenon) and longest …
Compositional and chronological characterization of mare crisium using Chandrayaan-1 and LROC-WAC data
Karthi, A.; Arivazhagan, S.
The surface of the Moon has been observed by human being since time immemorial and it appears distinctly different from that of the earth. Moon is geologically inactive for quite long time and therefore it's an ideal place to study the early solar system history. The lunar surface is dominated by various morphological features such as craters, ril…
Characterizing dark mantle deposits in the lunar crater Alphonsus
Videen, G.; Ivanov, M. A.; Shkuratov, Y. G. +6 more
We analyze available remote-sensing data of the crater Alphonsus, focusing on the analysis of the crater's dark mantle deposits (DMDs), which includes images from NASA Clementine and Lunar Reconnaissance Orbiter (LRO), Japanese Selene (Kaguya), and Indian Chandrayaan-1 missions. The Alphonsus DMDs are gentle-sloped flat hills with typical heights …
Corrigendum to "The Sunlit lunar atmosphere: A Comprehensive study by CHACE on the Moon Impact Probe of Chandrayaan-1" [Planet. Space Sci. 58 (2010) 1567-1577]
Sridharan, R.; Ahmed, S. M.; Sreelatha, P. +4 more
The authors regret, an inadvertent error that could creep in while one attempts to estimate the number densities based on the reported lunar atmospheric composition data from the CHACE measurements in CHANDRAYAAN-1, the first Indian mission to the moon has been identified.