Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 23.07.2017 beginning time = 1232 min.(UT), 20:32 UT Xbegin = -5.048 nT time of max = 1279 min.(UT), 21:19 UT Xmax = 5.524 nT Y at Xmax = -3.918 nT endtime = 1329 min.(UT), 22: 9 UT Xend = -4.000 nT amplitude = 10.572 nT base duration time = 97 min. 2sigma = 7.427 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0 flagxcheck = 0