Parameters of the midlatitude positive bays (MPB)
 Calculated at Space Research and Technology Institute, Sofia, Bulgaria
 
 Station: PAG
 Date of observation: 13.12.2007
 
 beginning time = 1149 min.(UT), 19: 9 UT
 Xbegin =         -4.088 nT
 time of max =    1178 min.(UT), 19:38 UT
 Xmax =            7.548 nT
 Y at Xmax =       5.324 nT
 endtime =        1224 min.(UT), 20:24 UT
 Xend =           -4.138 nT
 amplitude =      11.636 nT
 base duration time = 75 min.
 2sigma =          3.781 nT
 duration at 2sigma = 31 min.
 flagbegin = 0
 flagend =   0
 flagxcheck = 0