This directory contains the collected data for large (>1 km) PSRs for Wagner et al. 2025.

large_psr_all_raw_data_20250604.csv is the raw data collected from every image at every location.  large_psr_all_raw_data_20250604_unfiltered.csv is the same, but also includes patches that contain non-PSR terrain.  sorted_csvs/ contains the PSR-only data, split out by site and season.  Filenames are of the form "<psr_name>_<season initial>.csv" (see below for season info). These files have the following columns:


Site        Name of the PSR
Sitetype    1 for the central Target Point, 0 otherwise
Subsite     Name of the subsite, in the form <psr_name>_<x>_<y>, where x and y are the site's position in the grid relative to the target point
Image       ShadowCam image ID
Date        Date the image was acquired
Emission    Emission angle of the image
StDev       Standard deviation of radiance values in the 1200m square patch
SSLat_Relative   Sub-solar latitude, with sign adjusted so that summer is always positive 
Season      Season abbreviation as given below
TimeOfDay   Solar time of the image, where there are 24 units in a lunation, 12.0 is noon, and values increase over the course of a lunation
Median_Radiance   Median radiance value in the 1200m square patch
cd/m2       Median radiance converted to luminance using a conversion factor of 70 cd/m2 per radiance unit
EV          Median radiance converted to EV


Season abbreviations:
 S Winter      (sub-solar lat < -1.0)
nW Near-Winter (sub-solar lat -1.0 - -0.5)
 E Equinox     (sub-solar lat -0.5 - 0.5)
nS Near-Summer (sub-solar lat 0.5 - 1.0)
 S Summer      (sub-solar lat > 1.0)


large_psr_summary_stats.csv contains the source data for Figure 5, with bulk statistics for each PSR and season in EV form.  Columns:

Crater
MaxEV_Equi    Median radiance (in EV) from the brightest image at central Target Point in the Equinox season 
MaxEV_Sum     Ditto, for Summer
MaxEV_Win     Ditto, for Winter
Seas_Diff     Difference between maximum Summer and maximum Winter EVs
Lat           Latitude of the central Target Point
Lon           Longitude of the central Target Point
Diam_km       Diameter of the crater in km from https://planetarynames.wr.usgs.gov/Page/MOON/target
d_D_ratio     Depth/Diameter ratio
d_D_adjusted_for_EV   Depth/Diameter ratio, adjusted by a best-fit linear equation for EV vs diameter
lon_crater    Latitude of the center of the host crater
lat_crater    Longitude of the center of the host crater
PSR_ID        ID of the PSR, from the LROC PSR Atlas (https://lroc.im-ldi.com/atlases/psr)
PSR_center_latitude   Center latitude of the PSR, from the atlas
PSR_center_longitude  Center longitude of the PSR, from the atlas
PSR_area_sq_km  Area of the PSR in square meters, from the atlas
PSR_width_m   Short axis of a best-fit oriented bounding box for the PSR, in meters
PSR_height_m  Long axis of a best-fit oriented bounding box for the PSR, in meters
PSR_angle     Orientation of the long axis of the oriented bounding box
PSR_size_km   Bounding box dimensions in kilometers, rounded to integers

The + and - columns following each EV column are the EV column value for that row +/- the standard deviation of the median radiance of the surrounding points for images within +/-0.4 time-of-day units of the time of the image used in the EV column, converted to EV.