19 08 2017 15-minute Estimated Geomagnetic Activity Index UT:min Kp 00:00 4.67 00:15 4.67 00:30 4.67 00:45 5.00 01:00 4.67 01:15 4.33 01:30 5.00 01:45 5.33 02:00 5.67 02:15 5.67 02:30 5.33 02:45 5.00 03:00 4.67 03:15 4.67 03:30 4.67 03:45 4.67 04:00 5.33 04:15 5.00 04:30 5.33 04:45 5.00 05:00 5.00 05:15 5.00 05:30 5.33 05:45 5.00 06:00 5.00 06:15 5.00 06:30 4.67 06:45 5.67 07:00 6.00 07:15 6.00 07:30 5.67 07:45 5.33 08:00 6.00 08:15 6.00 08:30 5.67 08:45 6.00 09:00 6.00 09:15 6.00 09:30 5.67 09:45 5.67 10:00 6.00 10:15 5.67 10:30 5.67 10:45 6.00 11:00 6.00 11:15 5.67 11:30 5.33 11:45 6.00 12:00 6.00 12:15 5.67 12:30 5.67 12:45 5.67 13:00 5.67 13:15 5.67 13:30 5.67 13:45 5.67 14:00 6.00 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 5.67 17:15 5.67 17:30 5.67 17:45 5.33 18:00 5.33 18:15 5.67 18:30 5.33 18:45 5.67 19:00 5.67 19:15 5.33 19:30 5.33 19:45 5.33 20:00 5.00 20:15 5.00 20:30 5.00 20:45 5.33 21:00 5.33 21:15 5.33 21:30 5.33 21:45 5.00 22:00 5.33 22:15 5.33 22:30 5.33 22:45 5.67 23:00 6.00 23:15 5.67 23:30 5.33 23:45 5.67