15 08 2015 15-minute Estimated Geomagnetic Activity Index UT:min Kp 00:00 2.33 00:15 2.67 00:30 2.33 00:45 2.33 01:00 2.33 01:15 2.33 01:30 2.00 01:45 2.33 02:00 2.33 02:15 2.33 02:30 2.00 02:45 2.00 03:00 2.00 03:15 2.00 03:30 2.00 03:45 2.00 04:00 2.00 04:15 2.00 04:30 2.00 04:45 2.00 05:00 1.67 05:15 1.67 05:30 1.67 05:45 1.67 06:00 1.67 06:15 1.67 06:30 1.67 06:45 1.67 07:00 1.67 07:15 1.67 07:30 2.00 07:45 2.67 08:00 3.33 08:15 3.33 08:30 3.33 08:45 3.33 09:00 3.67 09:15 4.00 09:30 4.67 09:45 5.00 10:00 5.33 10:15 6.67 10:30 7.00 10:45 7.33 11:00 7.00 11:15 7.00 11:30 6.67 11:45 7.00 12:00 6.67 12:15 6.67 12:30 6.67 12:45 6.67 13:00 6.00 13:15 5.33 13:30 5.67 13:45 5.00 14:00 4.67 14:15 5.00 14:30 5.33 14:45 4.67 15:00 4.67 15:15 4.67 15:30 4.67 15:45 4.67 16:00 4.67 16:15 4.67 16:30 4.67 16:45 4.67 17:00 4.67 17:15 4.67 17:30 4.67 17:45 4.67 18:00 4.33 18:15 4.33 18:30 4.33 18:45 4.67 19:00 4.67 19:15 4.33 19:30 4.33 19:45 4.33 20:00 4.33 20:15 4.00 20:30 4.00 20:45 4.00 21:00 4.00 21:15 4.00 21:30 4.00 21:45 4.00 22:00 4.00 22:15 4.00 22:30 4.33 22:45 4.33 23:00 4.33 23:15 4.33 23:30 4.00 23:45 4.00