26 08 2018 15-minute Estimated Geomagnetic Activity Index UT:min Kp 00:00 5.33 00:15 5.00 00:30 5.33 00:45 5.33 01:00 5.67 01:15 5.67 01:30 6.00 01:45 6.00 02:00 6.00 02:15 6.00 02:30 6.33 02:45 6.33 03:00 6.33 03:15 6.33 03:30 6.67 03:45 6.67 04:00 6.67 04:15 6.67 04:30 6.67 04:45 6.67 05:00 6.33 05:15 6.33 05:30 6.67 05:45 6.67 06:00 6.67 06:15 6.33 06:30 6.33 06:45 6.00 07:00 6.33 07:15 6.33 07:30 6.00 07:45 6.00 08:00 5.67 08:15 5.67 08:30 5.67 08:45 5.67 09:00 5.33 09:15 5.33 09:30 5.33 09:45 5.33 10:00 5.33 10:15 5.33 10:30 5.33 10:45 5.33 11:00 5.67 11:15 5.33 11:30 5.67 11:45 5.67 12:00 5.33 12:15 5.67 12:30 6.00 12:45 6.00 13:00 5.67 13:15 5.67 13:30 5.67 13:45 5.67 14:00 5.67 14:15 5.67 14:30 5.67 14:45 5.67 15:00 5.67 15:15 5.67 15:30 5.67 15:45 5.67 16:00 5.67 16:15 5.67 16:30 5.67 16:45 5.33 17:00 5.33 17:15 5.67 17:30 5.33 17:45 5.33 18:00 5.00 18:15 5.00 18:30 5.33 18:45 5.00 19:00 5.33 19:15 5.00 19:30 5.00 19:45 5.00 20:00 4.67 20:15 4.67 20:30 4.67 20:45 4.67 21:00 4.33 21:15 4.33 21:30 4.33 21:45 4.67 22:00 4.33 22:15 4.33 22:30 4.33 22:45 4.33 23:00 4.33 23:15 4.33 23:30 4.33 23:45 4.00