Parameters of the midlatitude positive bays (MPB)
 Calculated at Space Research and Technology Institute, Sofia, Bulgaria
 
 Station: PAG
 Date of observation: 28.04.2007
 
 beginning time = 1287 min.(UT), 21:27 UT
 Xbegin =        -10.562 nT
 time of max =    1306 min.(UT), 21:46 UT
 Xmax =           14.016 nT
 Y at Xmax =     -12.782 nT
 endtime =        1323 min.(UT), 22: 3 UT
 Xend =           -0.716 nT
 amplitude =      24.578 nT
 base duration time = 36 min.
 2sigma =         11.405 nT
 duration at 2sigma =  9 min.
 flagbegin = 0
 flagend =   0
 flagxcheck = 0