Parameters of the midlatitude positive bays (MPB)
 Calculated at Space Research and Technology Institute, Sofia, Bulgaria
 
 Station: PAG
 Date of observation: 19.12.2021
 
 beginning time = 1309 min.(UT), 21:49 UT
 Xbegin =        -18.762 nT
 time of max =    1341 min.(UT), 22:21 UT
 Xmax =           13.478 nT
 Y at Xmax =      37.794 nT
 endtime =        1387 min.(UT), 23: 7 UT
 Xend =           -6.282 nT
 amplitude =      32.240 nT
 base duration time = 78 min.
 2sigma =          8.268 nT
 duration at 2sigma = 14 min.
 flagbegin = 0
 flagend =   0
 flagxcheck = 0