\begintext
 DynAstVO ephemeris
\begindata
NAIF_BODY_NAME+= ( '886138')
NAIF_BODY_CODE+= ( 20886138)
NAIF_BODY_NAME+= ( '2019 YR4')
NAIF_BODY_CODE+= ( 20886138)
\begintext
  DynAstVO magnitude parameters.
\begindata
BODY20886138_MAG_HG = ( 18.332 0.150 )