Description of the ASTEROID ALBEDOS bundle V1.0
===============================================

Bundle Generation Date: 2020-02-28
Peer Review: Densities and Albedos Review, 2002-05-10                         
Discipline node: Small Bodies Node


Content description based on the data set catalog file description for the PDS3 version, EAR-A-5-DDR-ALBEDOS-V1.1
=================================================================================================================

Note: for PDS3 data sets migrated to PDS4, the following text is taken
verbatim from the data set description and confidence level note of the
PDS3 data set catalog file. In these cases, some details may not be correct
as a description of the PDS4 bundle.
                                                           
  This data set comprises a compilation of asteroid albedos.  Sources include 
  the TRIAD (Tucson Revised Index of Asteroid Data) radiometric albedos       
  published in 'Asteroids' (Morrison and Zellner (1979)                       
  [MORRISON&ZELLNER1979], the IRAS Minor Planet Survey (IMPS) albedos archived
  in PDS data set IRAS-A-FPA-3-RDR-IMPS-V4.0, polarimetry albedos from PDS    
  data set EAR-A-3-RDR-APD-POLARIMETRY-V4.0, and radar albedos from PDS data  
  set EAR-A-5-DDR-RADAR-V8.0.  Albedos measured by different physical methods 
  are not directly comparable and are collected together here for the         
  convenience of data users.  All albedos in this file are geometric.         
                                                                              
  Modification History                                                        
  ====================                                                        
  This data set is introduced for the first time in May 2002.                 
                                                                              
  Parameters                                                                  
  ==========                                                                  
  Radiometric albedos from TRIAD are included along with a quality code.  IMPS
  albedos are included along with the assumed absolute magnitude, one-sigma   
  uncertainty, and a quality code.  Polarimetry values include albedos        
  determined from the position of the minimum of the polarization curve, from 
  the slope of the ascending branch of the polarization curve, and from the   
  weighted average of these two, as well as a quality code.  Radar albedos    
  include one-sigma uncertainty and the number of observations combined.      
                                                                              
  Data                                                                        
  ====                                                                        
  This data set comprises a single data table, 'albedos.tab', tabulating the  
  parameters listed above.


Known issues or problems with the data
======================================

  The confidence level of each data value reported is reflected in the        
  uncertainty value in the same entry.  Further information about the         
  observations can be obtained by consulting the original reference for each  
  entry.                                                                      
                                                                              
  Review                                                                      
  ======                                                                      
  This data set underwent external peer review on May 10, 2002.

PDS3 Source
===========

Version 1.0 of this bundle was migrated from version 1.1 of the PDS3 data set EAR-A-5-DDR-ALBEDOS-V1.1.