\begintext
 DynAstVO ephemeris
\begindata
NAIF_BODY_NAME+= ( '851534')
NAIF_BODY_CODE+= ( 20851534)
NAIF_BODY_NAME+= ( '2007 YX1')
NAIF_BODY_CODE+= ( 20851534)
\begintext
  DynAstVO magnitude parameters.
\begindata
BODY20851534_MAG_HG = ( 17.183 0.150 )