  We conducted a multi-wavelength campaign in September-October, 2002, to
observe SS 433. We used 45 meter sized 30 dishes of Giant Meter Radio Telescope
(GMRT) for radio observation, 1.2 meter Physical Research Laboratory Infra-red
telescope at Mt Abu for IR, 1 meter Telescope at the State Observatory,
Nainital for Optical photometry, 2.3 meter optical telescope at the Vainu Bappu
observatory for spectrum and Rossi X-ray Timing Explorer (RXTE) Target of
Opportunity (TOO) observation for X-ray observations. We find sharp variations
in intensity in time-scales of a few minutes in X-rays, IR and radio
wavelengths. Differential photometry at the IR observation clearly indicated
significant intrinsic variations in short time scales of minutes throughout the
campaign. Combining results of these wavelengths, we find a signature of delay
of about two days between IR and Radio. The X-ray spectrum yielded double Fe
line profiles which corresponded to red and blue components of the relativistic
jet. We also present the broadband spectrum averaged over the campaign
duration.
