Eastern Interconnection Frequency Events

Generated by the PSFM-1 Frequency Recorder

(updated as events are recorded.)
All times are UTC.
Generated at 15:47:30 22-Feb-2024 UTC.

Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/01/24 08:25:33 08:25:37 0.026 0.0041 VT ROC
02/01/24 08:25:34 08:25:45 0.030 0.0037 Delta +
02/01/24 09:00:26 09:00:30 0.025 0.0037 VT ROC
02/01/24 09:00:27 09:00:34 0.026 0.0036 Delta +
02/01/24 09:50:38 09:50:45 0.025 0.0035 Delta +
02/01/24 09:55:46 09:55:50 0.029 0.0042 VT ROC
02/01/24 09:55:46 09:55:54 0.030 0.0041 Delta +
02/01/24 21:00:26 21:00:27 0.026 0.0037 VT ROC
02/01/24 22:33:11 22:33:13 0.024 0.0036 VT ROC


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/02/24 10:02:49 10:02:53 0.028 0.0040 VT ROC
02/02/24 10:02:49 10:02:58 0.029 0.0041 Delta +
02/02/24 10:06:00 10:06:08 0.025 0.0037 Delta +
02/02/24 10:14:26 10:14:31 0.033 0.0047 VT ROC
02/02/24 10:14:25 10:14:35 0.034 0.0044 Delta +
02/02/24 10:22:54 10:22:58 -0.029 -0.0044 VT ROC
02/02/24 10:22:55 10:23:05 -0.030 -0.0039 Delta -
02/02/24 18:11:43 18:11:48 -0.030 -0.0055 VT ROC
02/02/24 18:11:44 18:11:53 -0.033 -0.0047 Delta -
02/02/24 21:50:20 21:50:24 0.024 0.0041 VT ROC
02/02/24 21:50:21 21:50:30 0.029 0.0037 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/03/24 10:48:15 10:48:19 0.024 0.0040 VT ROC
02/03/24 10:48:16 10:48:20 0.024 0.0037 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/04/24 10:34:31 10:34:34 0.025 0.0038 VT ROC


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/05/24 08:59:15 08:59:17 0.026 0.0042 VT ROC
02/05/24 08:59:14 08:59:22 0.028 0.0040 Delta +
02/05/24 10:30:58 10:31:00 0.021 0.0036 VT ROC


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/06/24 21:35:21 21:35:24 0.028 0.0043 VT ROC
02/06/24 21:35:19 21:35:30 0.030 0.0038 Delta +
02/06/24 23:47:12 23:47:14 0.022 0.0042 VT ROC


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/07/24 05:00:07 05:00:09 -0.021 -0.0038 VT ROC
02/07/24 05:20:05 05:20:15 -0.030 -0.0035 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/08/24 09:18:45 09:18:54 0.028 0.0035 Delta +
02/08/24 10:24:13 10:24:15 0.027 0.0038 VT ROC
02/08/24 10:24:11 10:24:19 0.028 0.0036 Delta +
02/08/24 21:20:29 21:20:31 0.027 0.0042 VT ROC
02/08/24 21:20:28 21:20:38 0.030 0.0037 Delta +
02/08/24 23:00:20 23:00:24 0.026 0.0042 VT ROC
02/08/24 23:00:20 23:00:29 0.029 0.0038 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/09/24 10:01:23 10:01:27 0.027 0.0049 VT ROC
02/09/24 10:01:23 10:01:30 0.028 0.0042 Delta +
02/09/24 11:00:08 11:00:17 -0.026 -0.0037 Delta -
02/09/24 11:41:31 11:41:35 0.032 0.0047 VT ROC
02/09/24 11:41:31 11:41:41 0.034 0.0044 Delta +
02/09/24 21:00:24 21:00:28 0.034 0.0050 VT ROC
02/09/24 21:00:19 21:00:30 0.035 0.0045 Delta +
02/09/24 22:00:28 22:00:34 0.031 0.0040 VT ROC
02/09/24 22:00:28 22:00:39 0.033 0.0039 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/10/24 06:00:07 06:00:09 -0.020 -0.0037 VT ROC
02/10/24 12:26:49 12:26:54 0.030 0.0044 VT ROC
02/10/24 12:26:48 12:26:58 0.031 0.0041 Delta +
02/10/24 15:00:52 15:00:54 0.024 0.0046 VT ROC
02/10/24 15:00:53 15:01:00 0.027 0.0040 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/11/24 11:02:48 11:02:53 0.030 0.0042 VT ROC
02/11/24 11:02:47 11:02:56 0.031 0.0040 Delta +
02/11/24 11:11:55 11:11:56 0.027 0.0042 VT ROC
02/11/24 11:11:57 11:11:59 0.028 0.0037 VT ROC
02/11/24 11:11:54 11:12:02 0.030 0.0040 Delta +
02/11/24 11:54:44 11:54:50 0.036 0.0052 VT ROC
02/11/24 11:54:42 11:54:54 0.037 0.0044 Delta +
02/11/24 13:01:04 13:01:07 -0.029 -0.0044 VT ROC
02/11/24 13:01:02 13:01:11 -0.030 -0.0037 Delta -
02/11/24 13:14:11 13:14:16 0.034 0.0056 VT ROC
02/11/24 13:14:09 13:14:20 0.035 0.0051 Delta +
02/11/24 13:25:27 13:25:31 0.030 0.0043 VT ROC
02/11/24 13:25:24 13:25:37 0.031 0.0040 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/12/24 05:00:07 05:00:09 -0.022 -0.0043 VT ROC
02/12/24 11:07:45 11:07:48 0.030 0.0040 VT ROC
02/12/24 11:07:42 11:07:53 0.031 0.0037 Delta +
02/12/24 14:07:37 14:07:39 -0.022 -0.0038 VT ROC


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/13/24 05:00:06 05:00:09 -0.027 -0.0041 VT ROC
02/13/24 05:00:03 05:00:10 -0.028 -0.0036 Delta -
02/13/24 10:10:15 10:10:21 0.025 0.0036 Delta +
02/13/24 11:05:02 11:05:03 0.024 0.0036 VT ROC
02/13/24 22:40:41 22:40:43 0.021 0.0038 VT ROC


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/14/24 09:45:27 09:45:31 0.027 0.0052 VT ROC
02/14/24 09:45:28 09:45:36 0.029 0.0045 Delta +
02/14/24 21:00:20 21:00:24 0.028 0.0050 VT ROC
02/14/24 21:00:19 21:00:28 0.029 0.0040 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/15/24 06:00:06 06:00:09 -0.027 -0.0045 VT ROC
02/15/24 06:00:05 06:00:13 -0.028 -0.0041 Delta -
02/15/24 08:46:57 08:47:05 -0.056 -0.0108 VT ROC
02/15/24 08:46:55 08:47:08 -0.057 -0.0091 Delta -
02/15/24 12:39:13 12:39:16 -0.023 -0.0043 VT ROC
02/15/24 21:34:56 21:34:59 0.023 0.0037 VT ROC
02/15/24 21:34:57 21:35:01 0.024 0.0037 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/16/24 05:00:07 05:00:09 -0.022 -0.0038 VT ROC
02/16/24 06:48:18 06:48:23 -0.039 -0.0082 VT ROC
02/16/24 06:48:18 06:48:28 -0.040 -0.0068 Delta -
02/16/24 09:00:07 09:00:08 -0.021 -0.0036 VT ROC
02/16/24 09:07:40 09:07:41 0.028 0.0044 VT ROC
02/16/24 09:07:41 09:07:44 0.030 0.0040 VT ROC
02/16/24 09:07:39 09:07:51 0.034 0.0042 Delta +
02/16/24 11:57:08 11:57:09 0.021 0.0037 VT ROC
02/16/24 16:44:38 16:44:46 -0.040 -0.0069 VT ROC
02/16/24 16:44:38 16:44:49 -0.041 -0.0060 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/17/24 05:00:06 05:00:10 -0.029 -0.0049 VT ROC
02/17/24 05:00:05 05:00:13 -0.030 -0.0044 Delta -
02/17/24 21:00:19 21:00:22 0.027 0.0042 VT ROC
02/17/24 21:00:17 21:00:23 0.028 0.0040 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/18/24 03:28:05 03:28:06 -0.026 -0.0035 VT ROC
02/18/24 03:28:01 03:28:09 -0.028 -0.0036 Delta -
02/18/24 08:34:06 08:34:08 0.026 0.0040 VT ROC
02/18/24 08:34:05 08:34:14 0.028 0.0037 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/19/24 10:01:19 10:01:21 0.022 0.0037 VT ROC
02/19/24 16:26:35 16:26:37 0.024 0.0055 VT ROC
02/19/24 16:26:35 16:26:39 0.023 0.0045 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/21/24 09:19:49 09:19:55 0.025 0.0035 Delta +
02/21/24 21:00:26 21:00:36 0.050 0.0077 VT ROC
02/21/24 21:00:26 21:00:38 0.052 0.0069 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/22/24 11:07:25 11:07:34 0.029 0.0036 Delta +
02/22/24 12:00:06 12:00:09 -0.027 -0.0043 VT ROC
02/22/24 12:00:06 12:00:17 -0.031 -0.0041 Delta -
02/22/24 15:47:14 15:47:17 0.026 0.0037 VT ROC
02/22/24 15:47:14 15:47:21 0.028 0.0036 Delta +


PSFM Hardware and software by Robert M. Orndorff
Generated at 15:47:30 22-Feb-2024 UTC.
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