LRO DIVINER Derived Data

Type

Description

GDR_L2

Level 2 Gridded Data Record - Level 2 Diviner GDR products include solar reflectances, brightness temperatures, and time-related values such as local time and Julian Date that are binned and averaged according to 27-day LRO mapping cycles. Each averaged product is further split into daytime (local time 06:00 to 18:00) and nighttime (local time 18:00 to 06:00) data products. - Both IMG and JPEG2000 versions are available.

GDR_L3

Level 3 Gridded Data Record - Level 3 Diviner GDR products include Christiansen Feature (CF) position, Rock Abundance, Soil Temperature, and Root Mean Square (RMS) fitting errors between measured and modeled radiances. - Both IMG and JPEG2000 version

PRP

Gridded Data Record - Polar Resource Products - See Product SIS and Diviner Lunar Radiometer Observations of Cold Traps in the Moon’s South Polar Region, D. Paige et al, Science, Vol. 330, p479-482, 2010 for more information.

GCP

Global Cumulative Products - are derived from Diviner Level 1RDR radiances binned at 2 ppd and 0.25 hours of local time from a compilation of all nadir observations acquired from 5-July-2009 to 1-April-2015 as described in Williams et al., Icarus 283, 300 –325, 2017. See Product SIS and Paige et al., Science 330, 479, 2010 for more information.

RCP

Regional Cumulative Products - are derived from Diviner Level 1 RDR radiances binned at 128 ppd and 0.1 hours of local time from a compilation of all observations with emission angles <20° acquired from 5-July-2009 to 1-March-2021 as described in Williams et al., Earth Space Sci., 9, e2021EA001966, 2022. Each file contains a single header line followed by a line for each bin containing brightness temperatures derived from the binned radiance for the seven infrared channels and the bolometric brightness temperature as described in Paige et al., Science 330, 479, 2010. Each line represents the mean brightness temperature for each latitude, longitude bin and solar local time bin. The data set includes the Lacus Mortis region (22.5° E to 31.5° E, 41.5° N to 48.5° N) and split into 63 files representing 1° tiles of latitude and longitude. Files are ‘sparse’ in that bins that contain no data are excluded.

PCP

Polar Cumulative Products - are derived from Diviner Level 1 RDR radiances binned at 240 m pix-1 and either 0.25 hours of local time or 3.75° of subsolar longitude from a compilation of all nadir observations acquired from 5-July-2009 to 17-Feb-2019 as described in Williams et al., J. Geophys. Res. 124, 2505 – 2521, 2019. Each file contains a single header line followed by a line for each bin containing distances from the pole (x,y) normalized by the mean radius 1737.4 km, the longitude and latitude, and the bolometric brightness temperature derived from the binned radiances of the seven infrared channels. The data set covers a 10° latitude cap at each pole (i.e. -90° to -80° S and 80° to 90° N) and is divided between summer and winter defined by the subsolar latitude being above or below the equator. Each file represents a single local time bin, or a single subsola longitude bin. Bins that contained no data are excluded.