1 Solution curve                                                                                             
 2 Value given for a/b is lower limit.                                                                        
 3 Different spin axis solutions for different apparitions were interpreted as indicating a precessing motion.
 4 Symmetric solution obtained, but quantitative specification is missing.                                    
 5 Consistency check of previous spin vector determinations.                                                  
 6 Based on a radar experiment giving constraints on the aspect angle at the time of observation.             
 7 Based on two radar experiments giving an aspect circle at the time of observation.                         
 8 Modelled as a cylinder with hemispherical ends.                                                            
 9 Modelled as a cylinder cut out of a sphere.                                                                
10 Complex shape.                                                                                             
11 Modelled as a Jacobi ellipsoid.                                                                            
12 Modelled as 8 octants of ellipsoids put together to form a continuous surface.                             
13 Modelled as an ellipsoid with a piece removed by a plane cut.                                              
14 Modelled as an irregular polyhedron.                                                                       
15 Modelled as a sphere with free albedo facets.                                                              
16 Results show that there are no significant albedo variations.                                              
17 Modelled using a sherical harmonics expansion of the shape.                                                
18 Albedo model with a single big spot.                                                                       
19 Modelled as a sphere with two dark regions.                                                                
20 Speckle images show albedo variations.                                                                     
21 Bi-axial ellipsoid (a/b = 1.15) with a flat region just off the South Pole.                                
22 Also presented in Ful+91.                                                                                  
23 Also presented in English in Lup+90.                                                                       
24 Also presented in Mi+90c.                                                                                  
25 a/b is assumed value.                                                                                      
26 b/c is assumed value.                                                                                      
27 a/b is a mean value of two significantly different solutions.                                              
28 b/c is a mean value of two significantly different solutions.                                              
29 Sidereal period is a mean value of two significantly different solutions.                                  
30 Also presented in Det+94.                                                                                  
31 Detailed model from spacecraft images.                                                                     
32 Also presented in Mic94.