\begintext
 DynAstVO ephemeris
\begindata
NAIF_BODY_NAME+= ( '877855')
NAIF_BODY_CODE+= ( 20877855)
NAIF_BODY_NAME+= ( '2011 GZ54')
NAIF_BODY_CODE+= ( 20877855)
\begintext
  DynAstVO magnitude parameters.
\begindata
BODY20877855_MAG_HG = ( 21.968 0.150 )