Help for PHOTFIT2_LUMME_BOWEL_HG1

PURPOSE:

In this PDF, the user is asked for the parameters and there limits needed to 
fit the Lumme-Bowell photometric function.
If a sulution guess falls out-of-bonds then the attemp will be aborted and 
a new guess attempted.

MATHEMATICAL BACKGROUND :

bidirectional reflectance [1/str] :

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


REFERENCE :
Kari Lume, Edward Bowell, Radiative Transfer in Surfaces of 
	Atmosphereless Bodies
1. Theory,
	The Astronomical Jounal, Vol. 86, No. 11, p. 1694-1704, 1981
2. Interpretation of Phase curves,
	The Astronomical Jounal, Vol. 86, No. 11, p. 1705-1721, 1981
3. Interpretation of Lunar Photometry,
	The Astronomical Jounal, Vol. 87, No. 7, p. 1076-1082, 1982

PROGRAMMER:

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

PARAMETERS: