Parameters of the midlatitude positive bays (MPB)
 Calculated at Space Research and Technology Institute, Sofia, Bulgaria
 
 Station: PAG
 Date of observation: 20.12.2021
 
 beginning time = 1074 min.(UT), 17:54 UT
 Xbegin =         -8.404 nT
 time of max =    1162 min.(UT), 19:22 UT
 Xmax =            6.766 nT
 Y at Xmax =       0.594 nT
 endtime =        1206 min.(UT), 20: 6 UT
 Xend =           -4.608 nT
 amplitude =      15.170 nT
 base duration time =132 min.
 2sigma =          7.318 nT
 duration at 2sigma =  0 min.
 flagbegin = 4
 flagend =   0
 flagxcheck = 0