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We fit Chandra HETGS data obtained for the unusual X-ray binary SS 433. Whileline strengths and continuum levels hardly change, the jet Doppler shifts showaperiodic variations that probably result from shocks in interactions with thelocal environment. The X-ray and optical emission line regions are found to berelated but not coincident as the optical line emission persists for days whilethe X-ray emission lines fade in less than 5000 s. The X-ray spectrum of theblue-shifted jet shows over two dozen emission lines from plasma at a varietyof temperatures. The emission measure distribution derived from the spectrumcan be used to test jet cooling models.

Modeling the SS 433 Jet Bends