The precise measurement of the cross section for the p(e, e' π+)n reaction at certain kinematics, allows one to separate the cross section into quantities at a given four-momentum transfer Q2, which carry the information about the nucleon structure. Since the data at low Q2 are not known with an intended precision, a new measurement of the p(e, e' π+)n reaction was performed at Q2 = 0.078 (GeV/c)2 and at an invariant mass of W = 1094 MeV - approximately 15 MeV above the reaction threshold. The experimental work was accomplished by the A1 collaboration at the Institute for Nuclear Physics at the Johannes Gutenberg University of Mainz, Germany. The high quality electron beam was provided by the MAMI B accelerator with the energy range from 180 to 855 MeV. The produced charged pion was detected in the short-orbit spectrometer (SOS), which was constructed for a detection of the low-energy pions. The scattered electron was detected in the standard spectrometer A. For the first time, the complete analysis of the p(e, e' π+)n reaction data measured with the SOS was performed. New SOS-specific correction methods were developed to ensure a consistent data analysis. Some of the most important methods are the procedure of pion decay correction, the simulation for the determination of the muon contamination in the SOS data. The measurement was done and the analysis was carried out for five different kinematical settings. The relative total errors of the obtained p(e, e' p+)n cross sections were between 3.1% and 3.7%. Three cross sections were measured in a parallel kinematics at the virtual photon polarizations ε = 0.897, 0.591 and 0.306. In case of the parallel kinematics only the transverse and the longitudinal terms appear in the measured cross section. These terms were separated using the Rosenbluth method. For the highest ε = 0.897 value two measurements were performed with the SOS offsets at +18.7 and -18.7 (in the centre-of-mass frame), or in other words to the left and to the right from the parallel kinematics direction of the pion. In this way it was possible to determine the transversal-longitudinal interference term of the cross section. The relative total errors of the transverse, the longitudinal and the interference term were 6.7%, 14.7% and 10.5%, respectively. The results for the cross section terms, which contain the information about the nucleon structure, were compared with predictions of the selected theoretical models.