WEAK SUDDEN IMPULSE DETECTED (38nT) IN IPS MAG DATA 25 10 01 0851UT Mean Mag Parameters Pre/Post Impulse: Pre Post Pre/Post Stn Unit Impulse Impulse Change dwn nT 57.0 90.8 33.8 hbt nT 84.7 123.6 38.9 cbr nT 11.9 54.5 42.5