Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 17.10.2021 beginning time = 1136 min.(UT), 18:56 UT Xbegin = -11.554 nT time of max = 1185 min.(UT), 19:45 UT Xmax = 17.968 nT Y at Xmax = 6.598 nT endtime = 1210 min.(UT), 20:10 UT Xend = -3.698 nT amplitude = 29.522 nT base duration time = 74 min. 2sigma = 6.723 nT duration at 2sigma = 25 min. flagbegin = 0 flagend = 0 flagxcheck = 0