Help for PHOTFIT2_REGNER_HAPKE_HG1

PURPOSE:

In this PDF, the user is asked for the parameters and there limits needed to 
fit the combined photometric function of the system atmosphere/surface as 
proposed by P.Regner. 
If a sulution guess falls out-of-bonds then the attemp will be aborted and 
a new guess attempted.


MATHEMATICAL BACKGROUND :

The approximation from Van Blerkom for the atmosphere is combined with the 
Hapke-1986-one-term-Henyey-Greenstein photometric function for the surface.


bidirectional reflectance [1/str] :

r(i,e,g) = ...

REFERENCE :

  Peter Regner, Photometric Analysis for the Determination of Physical and 
  Structural Properties of the Martian Surface in the Oxia Palus Region, 
  Thesis University Munich, DLR-FB 90-29, 1990

 Van Blerkom, D. J., The effect of haze on the visibility of Martian surface 
 features, ICARUS,vol.14, pp. 235-244, 1971

PROGRAMMER:

Friedel Oschuetz
Institute of Planetary Exploration
DLR
12484 Berlin (FRG)

PARAMETERS: