List of magnetic storms in December 2009
Location — Lensk (geographic coordinates — 60.72 N 114.9 E | time zone UTC+09 )
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 — Lensk (geographic coordinates — 60.72 N 114.9 E | time zone UTC+09 )

Location — Lensk (geographic coordinates — 60.72 N 114.9 E | time zone UTC+09 )
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