Kaguya Lunar Multiband Imager MI Derived Optical Maturity OMAT 50N50S 512ppd 59mpp

Originators

USGS Astrogeology Science Center, Lemelin et al., University of Hawaii, JAXA - SELENE MI Instrument Team (M. Ohtake, PI)

Publisher

USGS Astrogeology Science Center

Publication Date

2016-09-01

Abstract

This mosaic represents the optical maturity (OMAT) of the surface of the Moon. OMAT is a unitless quantity that acts as a relative measure of the degree to which lunar soil has been physically modified by exposure to space (Lucey et al., 2000). Smaller OMAT values indicate greater optical maturity. The mosaic was created from topographically-corrected MI reflectance data acquired by the JAXA SELENE/Kaguya mission (see Ohtake et al., 2013) from the Kaguya Archive MI MAP processing level version 2 (MI MAP_02) products. The MI collects images of the lunar surface at 5 wavelengths in the ultraviolet-visible (UVVIS; 415, 750, 900, 950, 1001 nm) region of the electromagnetic spectrum and at 4 wavelengths in the near-infrared region (NIR; 1000, 1050, 1100, 1250 nm). These multispectral images have been used to derive 9 new near-global maps of the four common lunar minerals, FeO, optical maturity (OMAT), the abundance of SMFe, the grain size for plagioclase, and an estimation of the modeling error using Hapke’s radiative transfer equations (Lemelin et al., 2015; 2016; 2019). These products only cover the latitudinal range +/-50 degrees due to the difficulty of applying adequate corrections for topographic shading at higher latitudes. Preparation details and information on limitations of these products will be presented in a future publication. The mosaic presented here has been resampled to 512 ppd (59 meters/pixel) from its original resolution of 2048 ppd (15 meters/pixel). Retrieve the graphical 8bit-stretched full-res GeoTiff and legend from the Ancillary Products section at the right-side of this page. For usage rights, please refer to the JAXA Conditions for material usage page ( http://jda.jaxa.jp/en/service.php ) and please credit JAXA and the SELENE/Kaguya data. ©JAXA/SELENE References: Lemelin, M., P. G. Lucey, K. Miljković, L. R. Gaddis, T. M. Hare, and M. Ohtake (2019), The compositions of the lunar crust and upper mantle: Spectral analysis of the inner rings of lunar impact basins, Planetary and Space Science, 165, 230-243. Lemelin, M., P. G. Lucey, L.R. Gaddis, T. Hare, and M. Ohtake (2016), Global map products from the Kaguya Multiband Imager at 512 ppd: Minerals, FeO and OMAT, 47th LPSC, abs. #2994. http://www.hou.usra.edu/meetings/lpsc2016/pdf/2994.pdf Lemelin, M., P. G. Lucey, E. Song, and G. J. Taylor (2015), Lunar central peak mineralogy and iron content using the Kaguya Multiband Imager: Reassessment of the compositional structure of the lunar crust, J. Geophys. Res. Planets, 120, 869–887. doi:10.1002/2014JE004778. Lucey, P. G., D. T. Blewett, G. J. Taylor, and B. R. Hawke (2000), Imaging of lunar surface maturity, J. Geophys. Res., 105(E8), 20377–20386, doi:10.1029/1999JE001110. Ohtake, M., C.M. Pieters, P. Isaacson, S. Besse, Y. Yokota, T. Matsunaga, J. Boardman, S. Yamamoto, J. Haruyama, M. Staid, U. Mall, R.O. Green (2013), One Moon, Many Measurements 3: Spectral reflectance, Icarus, Volume 226, Issue 1, 364–374. Ohtake, M., J. Haruyama, T. Matsunaga, Y. Yokota, T. Morota, C. Honda and the LISM team (2008), Performance and scientific objectives of the SELENE (KAGUYA) Multiband Imager, Earth Planets Space, 60, 257-264. Taylor, L. A., C. Pieters, A. Patchen, D. S. Taylor, R. V. Morris, L. P. Keller, and D. S. McKay (2010), Mineralogical and chemical characterization of lunar highland soils: Insights into the space weathering of soils on airless bodies, J. Geophys. Res., 115, E02002, doi:10.1029/2009JE003427.

Purpose

The SELENE (KAGUYA) mission addressed the origin and evolution of the Moon by obtaining global element and mineral compositions, topological structure, gravity field and electromagnetic and particle environment of the Moon. The MI was a high-resolution multiband imaging camera with a spatial resolution in visible bands of 20 mpp and a spatial resolution in near-infrared bands of 62 mpp from the 100 km SELENE (KAGUYA) orbit altitude. These data support the derivation of many new products, including mineral and elemental abundance maps such as those presented here.

Contact and Distribution

Format

Mineral Map, Raster Data, Remote-sensing Data

Access Scope

Astrogeology

Supplemental Information

http://jda.jaxa.jp/en/service.php, http://l2db.selene.darts.isas.jaxa.jp/index.html.en, http://www.hou.usra.edu/meetings/lpsc2016/pdf/2994.pdf

Native Data Set Environment

ISIS v3

Astrogeology Theme

Mineral resources, Remote Sensing, Selenography

Mission Names

Kaguya

Instrument Names

MI

Online Package Link

https://astrogeology.usgs.gov/search/map/kaguya_lunar_multiband_imager_mi_derived_optical_maturity_omat_50n50s_512ppd_59mpp

External File Size

36 GB

Online File Link

https://planetarymaps.usgs.gov/mosaic/Lunar_MI_mineral_maps/Lunar_Kaguya_MIMap_MineralDeconv_OpticalMaturityIndex_50N50S.tif

Contact Address

2255 N. Gemini Drive

Contact City

Flagstaff

Contact State

AZ

Contact Postal Code

86001

Contact Email

astroweb@usgs.gov

Logical Consistency

The MI reflectance data were provided by the SELENE team; information about the MAP processing level reflectance can be found in KAGUYA (SELENE) Product Format Description – Lunar Imager/Spectrometer (LISM (TC/MI/SP)) / SPICE Kernel, version 1.3 (2010). See Source Online Linkage below. The MI ultraviolet-visible (UVVIS) data (5 spectral bands, at 415, 750, 900, 950, 1001 nm) were used to derive 9 new near-global maps of common lunar minerals, FeO, TiO2, and optical maturity (OMAT) using Hapke’s radiative transfer equations (Lemelin et al., 2016).

Completeness Report

The MAP level reflectance data product has been derived from 50N to 50S latitude of the Moon. There are data gaps within the mosaic set to NoData.

Process Description

KAGUYA (SELENE) Product Format Description – Lunar Imager/Spectrometer (LISM (TC/MI/SP)) / SPICE Kernel, version 1.3 (2010). See Source Online Linkage below. Original product at 2048ppd (15 m/p) data was sub-sampled to 512ppd (59 m/p).

Lineage

Process Date

2015-08-01

Source Online Linkage

https://planetarymaps.usgs.gov/mosaic/Lunar MI_mineral_maps/Lunar_Kaguya_MIMap_MineralDeconv_OpticalMaturityIndex_50N50S.tif

Horizontal Positional Accuracy Report

Best Effort

Geospatial Information

Target

Moon

System

Earth

Minimum Latitude

-50

Maximum Latitude

50

Minimum Longitude

-180

Maximum Longitude

180

Direct Spatial Reference Method

Raster

Object Type

Grid Cell

Raster Row Count (lines)

51200

Raster Column Count (samples)

184320

Bit Type (8, 16, 32)

32

Quad Name

LQ-2, LQ-7, LQ-24, LQ-29

Radius A

1737400

Radius C

1737400

Bands

1

Pixel Resolution (meters/pixel)

59.225294

Scale (pixels/degree)

512

Map Projection Name

Simple Cylindrical

Latitude Type

Planetocentric

Longitude Direction

Positive East

Longitude Domain

-180 to 180