************************************************************************* 81407 We propose a 14-day continuous observation of SS 433 with ASCA to cover its one full orbital period. The goals are: (1) mapping of the structure of the super-critical accreting flow using the X-ray jet emission as the light source of X-ray tomography, (2) measurement of the time variation of the jet kinetic power and its correlation with the optical and radio flux variation, and (3) cross-calibration of ASTRO-E and XMM with ASCA using the strong emission lines of SS 433. *************************************************************************