Parameters of the midlatitude positive bays (MPB)
 Calculated at Space Research and Technology Institute, Sofia, Bulgaria
 
 Station: PAG
 Date of observation: 28.09.2021
 
 beginning time = 1351 min.(UT), 22:31 UT
 Xbegin =        -10.606 nT
 time of max =    1384 min.(UT), 23: 4 UT
 Xmax =            7.688 nT
 Y at Xmax =      -5.754 nT
 endtime =        1428 min.(UT), 23:48 UT
 Xend =           -2.750 nT
 amplitude =      18.294 nT
 base duration time = 77 min.
 2sigma =          6.299 nT
 duration at 2sigma = 24 min.
 flagbegin = 4
 flagend =   0
 flagxcheck = 0