Vesta Results Summarized
Webmaster: Bruce L. Gary, Hereford, AZ; USA
This web page summarizes
what I've learned about Vesta albedo versus rotation phase
2014.09.17: Added phase function plot.
Downloadable text file
of Vesta fluxes: DR20140625
Vesta phase function fitted to maximum rotation brightness
values by 3-parameter model (Belskaya and Shevchenko, 2000).
In the above model fit the OE (opposition effect) value was chosen
from the OE vs. albedo relation given in Belskaya and Shevchenko
(2000). The "phase coefficient" (slope beyond 5 deg) is compatible
with the same publication.
Vesta geometric albedo is
based on phase parameter G that is allowed to vary with
Geometric albedo vs. wavelength for selected rotation phases.
Amplitude of variation of geometric albedo (peak-to-peak) with
rotation vs. wavelength.
Dependence of phase parameter G with wavelength.
Here are the phase-folded light curves for the FC color channels.
Rotation phase includes small adjustment for changing ecliptic
longitude of Vesta as viewed from Earth.
Return to main Dawn FC Calibration
This site opened: 2014.04.10 by Bruce L. Gary (B L G A R Y at u m i c h dot e d