Eastern Interconnection Frequency Events

Generated by the PSFM-1 Frequency Recorder

(updated as events are recorded.)
All times are UTC.
Generated at 09:55:34 16-Jun-2024 UTC.

Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
06/01/24 02:00:05 02:00:09 -0.027 -0.0042 VT ROC
06/01/24 02:00:04 02:00:12 -0.028 -0.0038 Delta -
06/01/24 04:00:07 04:00:09 -0.023 -0.0043 VT ROC
06/01/24 04:00:06 04:00:10 -0.024 -0.0037 Delta -
06/01/24 08:08:33 08:08:35 0.025 0.0044 VT ROC
06/01/24 08:08:36 08:08:37 0.027 0.0036 VT ROC
06/01/24 08:08:33 08:08:43 0.029 0.0042 Delta +
06/01/24 09:00:06 09:00:09 -0.026 -0.0041 VT ROC
06/01/24 09:00:07 09:00:18 -0.031 -0.0039 Delta -
06/01/24 10:02:12 10:02:17 0.028 0.0043 VT ROC
06/01/24 10:02:14 10:02:21 0.031 0.0044 Delta +
06/01/24 10:52:23 10:52:24 0.024 0.0038 VT ROC
06/01/24 10:52:26 10:52:28 0.028 0.0036 VT ROC
06/01/24 10:52:23 10:52:32 0.029 0.0041 Delta +
06/01/24 13:05:16 13:05:19 0.026 0.0043 VT ROC
06/01/24 13:05:15 13:05:21 0.027 0.0038 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
06/02/24 04:00:05 04:00:09 -0.023 -0.0045 VT ROC
06/02/24 08:15:54 08:15:58 0.029 0.0045 VT ROC
06/02/24 08:15:54 08:16:03 0.030 0.0043 Delta +
06/02/24 13:05:16 13:05:18 0.024 0.0040 VT ROC
06/02/24 13:05:16 13:05:23 0.025 0.0035 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
06/03/24 22:52:21 22:52:29 -0.045 -0.0080 VT ROC
06/03/24 22:52:21 22:52:34 -0.047 -0.0066 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
06/04/24 01:00:51 01:00:53 0.027 0.0038 VT ROC
06/04/24 04:00:06 04:00:09 -0.025 -0.0047 VT ROC
06/04/24 04:00:05 04:00:10 -0.026 -0.0041 Delta -
06/04/24 06:00:06 06:00:08 -0.026 -0.0037 VT ROC
06/04/24 06:00:04 06:00:10 -0.026 -0.0035 Delta -
06/04/24 08:00:05 08:00:09 -0.024 -0.0039 VT ROC
06/04/24 10:00:07 10:00:09 -0.026 -0.0041 VT ROC
06/04/24 10:00:07 10:00:14 -0.028 -0.0039 Delta -
06/04/24 13:00:09 13:00:15 0.031 0.0049 VT ROC
06/04/24 13:00:10 13:00:19 0.032 0.0046 Delta +
06/04/24 13:30:30 13:30:37 0.025 0.0039 Delta +
06/04/24 13:32:16 13:32:18 0.024 0.0038 VT ROC
06/04/24 13:32:15 13:32:19 0.024 0.0037 Delta +
06/04/24 14:03:20 14:03:25 0.031 0.0045 VT ROC
06/04/24 14:03:19 14:03:31 0.033 0.0041 Delta +
06/04/24 14:19:44 14:19:45 0.021 0.0035 VT ROC
06/04/24 17:52:04 17:52:09 -0.034 -0.0073 VT ROC
06/04/24 17:52:04 17:52:15 -0.038 -0.0055 Delta -
06/04/24 23:06:31 23:06:33 -0.020 -0.0047 VT ROC


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
06/05/24 01:55:11 01:55:15 -0.029 -0.0041 VT ROC
06/05/24 01:55:08 01:55:19 -0.031 -0.0039 Delta -
06/05/24 04:00:05 04:00:08 -0.021 -0.0037 VT ROC
06/05/24 04:41:11 04:41:12 0.026 0.0038 VT ROC
06/05/24 04:41:10 04:41:16 0.026 0.0042 Delta +
06/05/24 11:00:07 11:00:12 -0.030 -0.0040 VT ROC
06/05/24 11:00:07 11:00:16 -0.032 -0.0040 Delta -
06/05/24 11:45:28 11:45:31 0.024 0.0043 VT ROC
06/05/24 11:45:29 11:45:38 0.028 0.0039 Delta +
06/05/24 11:51:02 11:51:08 0.026 0.0035 Delta +
06/05/24 12:00:42 12:00:43 0.024 0.0041 VT ROC
06/05/24 12:00:41 12:00:51 0.027 0.0036 Delta +
06/05/24 14:36:25 14:36:29 0.029 0.0044 VT ROC
06/05/24 14:36:23 14:36:32 0.030 0.0041 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
06/06/24 11:00:29 11:00:37 0.030 0.0035 Delta +
06/06/24 11:15:23 11:15:24 0.020 0.0037 VT ROC


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
06/07/24 09:07:44 09:07:45 0.027 0.0036 VT ROC
06/07/24 09:55:01 09:55:03 0.020 0.0044 VT ROC
06/07/24 11:14:29 11:14:30 0.026 0.0044 VT ROC
06/07/24 11:14:27 11:14:36 0.028 0.0040 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
06/08/24 14:03:55 14:03:57 0.024 0.0038 VT ROC
06/08/24 14:03:58 14:03:59 0.029 0.0042 VT ROC
06/08/24 14:03:55 14:04:05 0.032 0.0040 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
06/09/24 10:29:26 10:29:27 0.025 0.0039 VT ROC
06/09/24 10:29:27 10:29:33 0.026 0.0039 Delta +
06/09/24 11:00:06 11:00:09 -0.028 -0.0042 VT ROC
06/09/24 11:00:06 11:00:14 -0.030 -0.0041 Delta -
06/09/24 12:01:02 12:01:05 0.024 0.0042 VT ROC
06/09/24 12:01:03 12:01:09 0.026 0.0038 Delta +
06/09/24 23:00:44 23:01:07 59.936   Under 59.940


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
06/10/24 03:01:18 03:03:50 59.929   Under 59.940
06/10/24 03:03:57 03:06:22 59.930   Under 59.940
06/10/24 08:56:21 08:56:22 0.028 0.0037 VT ROC
06/10/24 08:56:18 08:56:26 0.029 0.0041 Delta +
06/10/24 09:04:40 09:04:41 0.025 0.0037 VT ROC
06/10/24 09:04:39 09:04:49 0.029 0.0037 Delta +
06/10/24 09:11:16 09:11:23 0.024 0.0036 Delta +
06/10/24 14:44:01 14:44:04 0.025 0.0043 VT ROC
06/10/24 14:44:00 14:44:09 0.028 0.0036 Delta +
06/10/24 18:01:47 18:01:51 -0.023 -0.0044 VT ROC


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
06/11/24 08:02:59 08:03:03 0.024 0.0035 Delta +
06/11/24 10:42:44 10:42:46 0.026 0.0038 VT ROC
06/11/24 10:42:43 10:42:49 0.027 0.0036 Delta +
06/11/24 13:28:44 13:28:46 -0.025 -0.0049 VT ROC
06/11/24 13:28:44 13:28:50 -0.026 -0.0040 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
06/12/24 08:00:06 08:00:09 -0.025 -0.0037 VT ROC
06/12/24 08:00:06 08:00:12 -0.026 -0.0035 Delta -
06/12/24 08:52:17 08:52:19 0.024 0.0039 VT ROC
06/12/24 08:52:17 08:52:24 0.026 0.0039 Delta +
06/12/24 10:06:43 10:06:46 0.028 0.0043 VT ROC
06/12/24 10:06:43 10:06:54 0.029 0.0041 Delta +
06/12/24 14:37:29 14:37:32 0.024 0.0036 VT ROC
06/12/24 14:37:29 14:37:39 0.030 0.0036 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
06/13/24 09:09:19 09:09:25 0.026 0.0036 Delta +
06/13/24 12:28:16 12:28:18 0.025 0.0041 VT ROC
06/13/24 12:28:15 12:28:22 0.027 0.0036 Delta +
06/13/24 14:05:13 14:05:15 0.022 0.0042 VT ROC
06/13/24 14:05:14 14:05:19 0.025 0.0036 Delta +
06/13/24 21:41:08 21:41:15 -0.028 -0.0036 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
06/14/24 04:00:07 04:00:09 -0.020 -0.0038 VT ROC
06/14/24 12:46:10 12:46:11 0.027 0.0038 VT ROC
06/14/24 12:46:07 12:46:16 0.029 0.0035 Delta +
06/14/24 14:24:34 14:24:35 0.029 0.0037 VT ROC
06/14/24 14:24:30 14:24:41 0.031 0.0036 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
06/15/24 08:07:11 08:07:13 0.024 0.0036 VT ROC
06/15/24 08:07:10 08:07:16 0.026 0.0036 Delta +
06/15/24 11:55:58 11:56:03 0.029 0.0051 VT ROC
06/15/24 11:55:57 11:56:05 0.030 0.0044 Delta +
06/15/24 12:45:09 12:45:13 0.028 0.0042 VT ROC
06/15/24 12:45:08 12:45:19 0.031 0.0040 Delta +
06/15/24 13:10:34 13:10:36 0.029 0.0043 VT ROC
06/15/24 13:10:33 13:10:43 0.030 0.0043 Delta +
06/15/24 13:26:10 13:26:12 0.022 0.0041 VT ROC
06/15/24 14:21:36 14:21:41 0.033 0.0054 VT ROC
06/15/24 14:21:35 14:21:44 0.034 0.0045 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
06/16/24 09:55:28 09:55:31 0.028 0.0042 VT ROC


PSFM Hardware and software by Robert M. Orndorff
Generated at 09:55:34 16-Jun-2024 UTC.
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