List of magnetic storms in December 2009
Location — Muzaffarpur (geographic coordinates — 26.12 N 85.39 E | time zone UTC+05:30 )
There were no days with an increased level of geomagnetic disturbance in December 2009
Changes in the maximum daily geomagnetic index Kp in December 2009 for mid latitudes
Location — Muzaffarpur (geographic coordinates — 26.12 N 85.39 E | time zone UTC+05:30 )

Location — Muzaffarpur (geographic coordinates — 26.12 N 85.39 E | time zone UTC+05:30 )
There were no days with an increased level of geomagnetic disturbance in December 2009
Solar radio flux (10.7 cm) = 87
Mean planetary A index = 4
Mean planetary Kp index = 3