** Error: missing COMMAND content ... cannot proceed

!$$SOF
MAKE_EPHEM =  'YES'
TABLE_TYPE =  'VECTORS'
OUT_UNITS =  'KM-S'
REF_SYSTEM =  'J2000'
VEC_LABELS =  'YES'
CSV_FORMAT =  'YES'
OBJ_DATA =  'NO'
VEC_TABLE =  '2'
STEP_SIZE =  '1 h'
START_TIME =  '2018-09-1 00:00'
STOP_TIME =  '2018-12-03 17:01'
COMMAND =  '