Parameters of the midlatitude positive bays (MPB)
 Calculated at Space Research and Technology Institute, Sofia, Bulgaria
 
 Station: PAG
 Date of observation: 13.09.2021
 
 beginning time = 1266 min.(UT), 21: 6 UT
 Xbegin =         -5.650 nT
 time of max =    1311 min.(UT), 21:51 UT
 Xmax =            6.930 nT
 Y at Xmax =       3.734 nT
 endtime =        1356 min.(UT), 22:36 UT
 Xend =           -7.018 nT
 amplitude =      12.580 nT
 base duration time = 90 min.
 2sigma =          5.003 nT
 duration at 2sigma = 23 min.
 flagbegin = 0
 flagend =   0
 flagxcheck = 0