DESCRIPTION
 Spatially resolved near-global Hapke photometric parameter maps of the Moon from ~66,000
 LROC Wide Angle Camera (WAC) multispectral observations acquired from February 2010 to
 October 2011. Maps consist of 9 Hapke parameters (w, b, c, Bc0, hc, Bs0, hs, theta, phi) [1]
 for each of the 7 bands of the WAC in Equirectangular projection (centered at 0°N, 0°E;
 1° by 1° pixel scale). The parameters Bc0, hc, theta, and phi (band 4, 5, 8, and 9) are 
 constant values as described in [1]. Maps extend 0°E-360°E, 70°N-70°S. These maps 
 were used to normalize the observed reflectance at standard angles incidence=phase=60°, 
 emission=0° in 1° latitude by 1° longitude tiles.
 
 For more information on the derivation of the Hapke parameters, please refer to Sato,
 et al. (2014). 

 Free Parameters of the Hapke Model [1]:

 Symbols | Name
 ------------------------------------------------------------------------------------
   w     | Single scattering albedo
   b     | Henyey-Greenstein double-lobed single particle phase function parameter
   c     | Henyey-Greenstein double-lobed single particle phase function parameter
   Bc0   | Amplitude of Coherent Backscatter Opposition Effect (CBOE) - fixed at 0.0
   hc    | Angular width of CBOE - fixed at 1.0
   Bs0   | Amplitude of Shadow Hiding Opposition Effect (SHOE)
   hs    | Angular width of SHOE
   theta | Effective value of the photometric roughness - fixed at 23.657
   phi   | Filling factor - fixed at 1.0

PDS PRODUCT NAMING CONVENTION
  The Hapke photometric parameter maps are archived as 9-band products for each of the
 7 WAC bands as well as one 63-band product containing all 9 parameters for all 7 bands
 of the WAC. The 9 Hapke parameters are archived in the order presented in the table
 above to create each 9-band product (i.e. Band 1 is for the w parameter and Band 9 has
 the phi parameter). For the 63-band product, the WAC bands are in order of increasing
 wavelength (i.e. Band 1 contains the w parameter for 321 nm WAC band and Band 63 contains
 the phi parameter for the 689 nm WAC band).  All the product files are named in the
 following manner: WAC_HAPKEPARAMMAP_[wavelength, e.g., 321NM or 7BAND]

  Product Name            |      Wavelength      | # of Bands
  ------------------------------------------------------------
  WAC_HAPKEPARAMMAP_321NM | 321 nm (WAC band 1) |      9
  WAC_HAPKEPARAMMAP_360NM | 360 nm (WAC band 2) |      9
  WAC_HAPKEPARAMMAP_415NM | 415 nm (WAC band 3) |      9
  WAC_HAPKEPARAMMAP_566NM | 566 nm (WAC band 4) |      9
  WAC_HAPKEPARAMMAP_604NM | 604 nm (WAC band 5) |      9
  WAC_HAPKEPARAMMAP_643NM | 643 nm (WAC band 6) |      9
  WAC_HAPKEPARAMMAP_689NM | 689 nm (WAC band 7) |      9
  WAC_HAPKEPARAMMAP_7BAND |  all 7 wavelengths  |     63

PRODUCT CITATION
  When citing this product, use the following reference:
  Sato, H., Robinson, M.S., Hapke, B., Denevi, B.W., Boyd, A.K. (2014) Resolved
  Hapke parameter maps of the Moon. Journal of Geophysical Research Planets, 119,
  1775–1805. doi:10.1002/2013JE004580.

BROWSE PNGS
  Low Resolution browsable png versions of these files can be found here:
  http://lroc.sese.asu.edu/data/LRO-L-LROC-5-RDR-V1.0/LROLRC_2001/EXTRAS/BROWSE/WAC_HAPKEPARAMMAP/

RDR SIS
  http://lroc.sese.asu.edu/data/LRO-L-LROC-5-RDR-V1.0/LROLRC_2001/DOCUMENT/RDRSIS.PDF

REFERENCES
  [1] Hapke, B. (2012) Theory of reflectance and emittance spectroscopy. Cambridge
      University Press, New York.