Parameters of the midlatitude positive bays (MPB)
 Calculated at Space Research and Technology Institute, Sofia, Bulgaria
 
 Station: PAG
 Date of observation: 15.09.2021
 
 beginning time = 1304 min.(UT), 21:44 UT
 Xbegin =         -6.304 nT
 time of max =    1335 min.(UT), 22:15 UT
 Xmax =            7.370 nT
 Y at Xmax =       0.954 nT
 endtime =        1375 min.(UT), 22:55 UT
 Xend =           -3.860 nT
 amplitude =      13.674 nT
 base duration time = 71 min.
 2sigma =          3.416 nT
 duration at 2sigma = 35 min.
 flagbegin = 0
 flagend =   0
 flagxcheck = 0