MEAN PROFILE OF THE CRAB PULSAR AT 102 MHZ

Radio observations of the Crab pulsar PSR 0531+21 at 102 MHz are repor ted. The observed profile was compensated for interstellar scattering, and the original shape of the mean pulsar profile was obtained. The s tructure of the profile is analyzed by representing it as a superposit ion of Gaussian components. The component of the mean profile, referre d to as the precursor, is the first component of a two-component main pulse. The interpulse also consists of two components. The widths of t he main pulse and the interpulse are approximately equal, W-50 = 50 de grees The ratio of the interpulse to the main pulse is 0.25, and the s eparation between them is S = 150 degrees. The broadening of the pulse s by scattering was found to be tau(sc) = 30 ms; the constant componen t of the observed emission from the pulsar accounts for 0.7 of its tot al emission.