\begintext
 DynAstVO ephemeris
\begindata
NAIF_BODY_NAME+= ( '886663')
NAIF_BODY_CODE+= ( 20886663)
NAIF_BODY_NAME+= ( '2021 JW1')
NAIF_BODY_CODE+= ( 20886663)
\begintext
  DynAstVO magnitude parameters.
\begindata
BODY20886663_MAG_HG = ( 19.796 0.150 )