We present a model that describes the topology of a magnetic cloud. The mod
el relates the magnetic field vector and current density of the cloud witho
ut assuming the force-fret condition. Fitting the model to the experimental
data we obtain the current density, the attitude of the axis and the relat
ive closest-approach distance between the spacecraft and the cloud axis. In
this paper, several magnetic clouds of 1997 are analyzed. The results indi
cate that the topology presented in this paper explains the magnetic held i
nside a MC better than force-free models. A current density of the order of
10(-12) C m(-2) s(-1) is obtained in the fitting of all the events.