Parameters of the midlatitude positive bays (MPB)
 Calculated at Space Research and Technology Institute, Sofia, Bulgaria
 
 Station: PAG
 Date of observation: 22.09.2021
 
 beginning time = 1261 min.(UT), 21: 1 UT
 Xbegin =         -3.318 nT
 time of max =    1300 min.(UT), 21:40 UT
 Xmax =           10.188 nT
 Y at Xmax =      -5.878 nT
 endtime =        1373 min.(UT), 22:53 UT
 Xend =           -5.764 nT
 amplitude =      13.506 nT
 base duration time =112 min.
 2sigma =          6.733 nT
 duration at 2sigma = 19 min.
 flagbegin = 0
 flagend =   4
 flagxcheck = 0