SIA and Transition from UCD to UCD 1+

Mapping SIA (pseudo) UCDs

UCD/SIA V1.0              UCD 1+

VOX:Image_Title           meta.title            
INST_ID                   meta.id;instr         
VOX_Image_MJDateObs       time.epoch            
POS_EQ_RA_MAIN            pos.eq.ra;meta.main 
POS_EQ_DEC_MAIN           pos.eq.dec;meta.main 
VOX:Image_Naxes           pos.wcs.naxes
VOX:Image_Naxis           pos.wcs.naxis            
VOX:Image_Scale           pos.wcs.scale
VOX:Image_Format          meta.code.mime        
VOX:STC_CoordRefFrame     pos.frame             
VOX:STC_CoordEquinox      time.equinox          
VOX:WCS_CoordProjection   pos.wcs.ctype            
VOX:WCS_CoordRefPixel     pos.wcs.crpix
VOX:WCS_CoordRefValue     pos.wcs.crval            
VOX:WCS_CDMatrix          pos.wcs.cdmatrix
VOX:BandPass_ID           instr.bandpass        
VOX:BandPass_Unit         meta.unit;instr.bandpass 
VOX:BandPass_RefValue     em.wl                 
VOX:BandPass_HiLimit      em.wl;stat.max        
VOX:BandPass_LoLimit      em.wl;stat.min        
VOX:Image_PixFlags        meta.code             
VOX:Image_AccessReference meta.ref.url          
VOX:Image_AccessRefTTL    time.lifetime;stat.min
VOX:Image_FileSize        phys.size;meta.file