Parameters of the midlatitude positive bays (MPB)
 Calculated at Space Research and Technology Institute, Sofia, Bulgaria
 
 Station: PAG
 Date of observation: 18.12.2007
 
 beginning time = 1271 min.(UT), 21:11 UT
 Xbegin =         -7.512 nT
 time of max =    1295 min.(UT), 21:35 UT
 Xmax =           19.914 nT
 Y at Xmax =     -13.268 nT
 endtime =        1352 min.(UT), 22:32 UT
 Xend =          -10.324 nT
 amplitude =      27.426 nT
 base duration time = 81 min.
 2sigma =         11.467 nT
 duration at 2sigma = 25 min.
 flagbegin = 0
 flagend =   2
 flagxcheck = 0