************************************************************************* 51087 Hard X-ray source was detected during the Galactic Ridge observation program of ASCA in Mar/1996. The source shows irregular shape in the X- ray image and the spectrum shows intense Si and Fe line which are equivalent to more than 3 times cosmic value assuming various plasma temperatures. To seek out the nature of this weak X-ray source, we propose 80ks in AO5 by ASCA. *************************************************************************