20 04 2017 15-minute Estimated Geomagnetic Activity Index UT:min Kp 00:00 5.00 00:15 5.33 00:30 5.67 00:45 5.33 01:00 5.33 01:15 5.67 01:30 5.67 01:45 5.67 02:00 6.00 02:15 6.00 02:30 6.00 02:45 5.67 03:00 5.67 03:15 5.67 03:30 5.67 03:45 5.67 04:00 5.67 04:15 5.67 04:30 5.67 04:45 6.00 05:00 5.67 05:15 5.33 05:30 5.33 05:45 5.33 06:00 5.33 06:15 5.67 06:30 5.33 06:45 5.33 07:00 5.33 07:15 5.00 07:30 5.33 07:45 5.00 08:00 5.00 08:15 5.00 08:30 5.00 08:45 5.00 09:00 5.00 09:15 5.00 09:30 4.67 09:45 5.00 10:00 5.00 10:15 5.33 10:30 5.00 10:45 5.00 11:00 5.33 11:15 5.00 11:30 5.00 11:45 5.00 12:00 5.00 12:15 5.00 12:30 4.67 12:45 4.67 13:00 4.67 13:15 4.67 13:30 4.67 13:45 4.67 14:00 4.67 14:15 4.67 14:30 4.33 14:45 4.33 15:00 4.33 15:15 4.33 15:30 4.67 15:45 4.33 16:00 4.33 16:15 4.33 16:30 4.33 16:45 4.33 17:00 4.33 17:15 4.33 17:30 4.00 17:45 4.00 18:00 4.00 18:15 4.00 18:30 3.67 18:45 4.00 19:00 3.67 19:15 3.67 19:30 3.67 19:45 4.00 20:00 4.00 20:15 4.00 20:30 4.00 20:45 3.67 21:00 3.67 21:15 3.67 21:30 3.67 21:45 3.67 22:00 3.67 22:15 3.67 22:30 3.67 22:45 3.67 23:00 3.67 23:15 3.67 23:30 3.67 23:45 3.67