WebThe variation in limb darkening with w and g, pronounced for smooth surfaces, is reduced or eliminated when the Hapke parameters are in the range typical of most planetary surfaces; this result simplifies the problem of photoclinometry across … Webthe simplified Hapke function, slope filtering, and the tile-by-tile method. The simplified Hapke function is stable and gives good performance with less data points, while the Lunar-lambert +2 nd order exp-decay gives good performance but is unstable with present data sets. Slope filtering substantially decreases scatter
OPTICAL PROPERTIES OF (162173) 1999 JU3: IN PREPARATION …
WebAug 9, 2024 · The variables μ and μ 0 are the cosines of the reflection and incidence angles; g is the phase angle; B(g) is the back-scattering function, which defines the increase in brightness of a rough surface with decreasing phase; P(g) is the single-particle phase function; and the H(μ) is the isotropic scattering function. The main parameter is ω, the … WebThe Hapke function 141 has at least five independent parameters: single- scattering albedo, average macroscopic surface roughness, width of the opposition effect, … covat-chc.be
A critical assessment of the Hapke photometric model
WebGreenstein function has been shown by McGuire and Hapke (1995] and Hartman and Domingue [1998] to modclthe single scattering functions of a variety of rough, nonspherical labo ratory particles more accurately than Legendre functions. In what follows, d "" -b is assumed, as is often the case for planetary applications. WebAug 1, 1991 · The limb darkening varies with the Hapke parameters for macroscopic roughness (θ), the single-scattering albedo (w), and the asymmetry factor of the particle … WebSep 1, 2024 · In this paper, we present an alternative to Hapke’s correction for the photometric effect of macroscopic roughness of planetary surfaces (Hapke, 1984). Our model includes the effects of both... covas window film installation