DATA_SET_DESCRIPTION |
Data Set Overview
=================
The Asteroid Polarimetric Database (APD) is compiled by Dmitrij
Lupishko of Kharkov University. This database tabulates the
original data comprising degree of polarization as a function of
phase angle of the asteroid, and additional parameters where
available. This data set, together with 'polar.tab' containing
the TRIAD polarimetry, includes most if not all existing asteroid
polarimetry data published by 1999. The APD is an ongoing
compilation and this data set will be updated yearly.
Modification History
====================
This data set was first reviewed and ingested in 1996, and was
updated in 1997 with additional polarimetric data published since
then, as well as an added table of derived polarimetric parameters
including polarization curves and polarimetric albedos of selected
asteroids. In 1999 and 2000 the data set was updated again with
additional polarimetric observations published since the previous
version.
Parameters
==========
The parameters tabulated in 'apd.tab' are filter, phase angle, degree
of polarization, polarization position angle, position angle of the
scattering plane, and both degree of polarization and position angle
in the proper coordinate system measured from the perpendicular to
the scattering plane.
Data
====
The Asteroid Polarimetric Database is included in the file
'apd.tab'.
Ancillary Data
==============
Parameters of the polarimetric curve for individual asteroids, as
well as polarimetric albedos, are compiled in the file 'apdcurv.tab'.
This file reproduces the data in Table 2 of Lupishko and Mohamed
(1996) [LUPISHKO&MOHAMED1996].
The entries in 'apd.tab' include a reference to the published paper
in which the data appeared. The full references of these papers,
as well as many other asteroid polarimetry papers compiled by
Lupishko, are given in the file 'apdref.tab'.
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CONFIDENCE_LEVEL_NOTE |
Confidence Level Overview
=========================
This is a compilation of asteroid polarimetry results from the
published literature. The user is referred to the individual
publications for information on the confidence level of any given
observation.
The table of polarimetric parameters and polarimetric albedos,
'apdcurv.tab', provides no error values, but instead gives a quality
code as an assessment of the quality of the data.
Review
======
This data set underwent external peer review on June 1, 2000.
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