Eastern Interconnection Frequency Events

Generated by the PSFM-1 Frequency Recorder

(updated as events are recorded.)
All times are UTC.
Generated at 12:22:35 19-Jan-2022 UTC.

Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
01/01/22 00:50:25 00:50:30 0.024 0.0029 Delta +
01/01/22 02:00:50 02:01:02 -0.028 -0.0030 Delta -
01/01/22 02:20:22 02:20:26 0.023 0.0025 Delta +
01/01/22 04:01:13 04:01:22 -0.027 -0.0029 Delta -
01/01/22 04:37:46 04:37:53 0.024 0.0031 Delta +
01/01/22 05:04:57 05:05:06 -0.026 -0.0028 Delta -
01/01/22 06:08:33 06:08:39 0.024 0.0028 Delta +
01/01/22 07:12:07 07:12:16 -0.026 -0.0030 Delta -
01/01/22 07:44:14 07:44:24 -0.027 -0.0031 Delta -
01/01/22 08:47:02 08:47:08 0.024 0.0033 Delta +
01/01/22 11:44:29 11:44:31 0.022 0.0039 VT ROC
01/01/22 11:44:30 11:44:41 0.029 0.0037 Delta +
01/01/22 11:47:38 11:47:42 0.029 0.0042 VT ROC
01/01/22 11:47:38 11:47:48 0.032 0.0040 Delta +
01/01/22 12:08:45 12:08:51 0.023 0.0029 Delta +
01/01/22 15:55:25 15:55:30 0.024 0.0031 Delta +
01/01/22 22:25:47 22:25:52 0.024 0.0030 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
01/02/22 03:34:52 03:34:57 -0.024 -0.0026 Delta -
01/02/22 05:00:04 05:00:11 -0.026 -0.0032 Delta -
01/02/22 06:05:36 06:05:43 0.025 0.0030 Delta +
01/02/22 07:01:22 07:01:32 -0.027 -0.0028 Delta -
01/02/22 09:01:38 09:01:42 0.027 0.0041 VT ROC
01/02/22 09:01:38 09:01:49 0.031 0.0040 Delta +
01/02/22 10:00:41 10:00:50 0.026 0.0029 Delta +
01/02/22 10:04:58 10:05:03 0.024 0.0034 Delta +
01/02/22 11:23:09 11:23:15 0.024 0.0031 Delta +
01/02/22 14:05:14 14:05:18 0.024 0.0027 Delta +
01/02/22 22:23:08 22:23:19 -0.025 -0.0028 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
01/03/22 07:50:49 07:50:52 -0.023 -0.0030 Delta -
01/03/22 07:54:30 07:54:39 0.028 0.0033 Delta +
01/03/22 08:19:27 08:19:29 -0.024 -0.0040 VT ROC
01/03/22 08:19:26 08:19:35 -0.028 -0.0039 Delta -
01/03/22 08:35:50 08:35:54 -0.024 -0.0025 Delta -
01/03/22 08:50:04 08:50:11 0.027 0.0032 Delta +
01/03/22 11:21:00 11:21:04 0.024 0.0027 Delta +
01/03/22 17:23:17 17:23:21 -0.028 -0.0051 VT ROC
01/03/22 17:23:16 17:23:24 -0.029 -0.0043 Delta -
01/03/22 22:00:13 22:00:19 0.026 0.0033 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
01/04/22 06:16:20 06:16:25 0.025 0.0032 Delta +
01/04/22 10:06:01 10:06:03 0.024 0.0042 VT ROC
01/04/22 10:06:01 10:06:06 0.024 0.0036 Delta +
01/04/22 11:48:04 11:48:08 -0.023 -0.0036 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
01/05/22 06:00:05 06:00:09 -0.030 -0.0044 VT ROC
01/05/22 06:00:04 06:00:15 -0.032 -0.0043 Delta -
01/05/22 10:48:39 10:48:45 0.025 0.0036 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
01/07/22 05:57:12 05:57:17 -0.024 -0.0027 Delta -
01/07/22 18:23:38 18:23:43 -0.035 -0.0079 VT ROC
01/07/22 18:23:37 18:23:47 -0.036 -0.0060 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
01/08/22 19:15:54 19:15:58 0.027 0.0044 VT ROC
01/08/22 19:15:53 19:16:02 0.028 0.0039 Delta +
01/08/22 20:50:48 20:50:54 0.024 0.0025 Delta +
01/08/22 21:01:38 21:01:42 -0.028 -0.0054 VT ROC
01/08/22 21:01:40 21:01:50 -0.031 -0.0047 Delta -
01/08/22 22:51:13 22:51:15 0.025 0.0037 VT ROC
01/08/22 22:51:12 22:51:20 0.028 0.0034 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
01/09/22 06:00:05 06:00:16 -0.029 -0.0036 Delta -
01/09/22 08:59:54 08:59:58 0.026 0.0037 VT ROC
01/09/22 08:59:55 09:00:02 0.028 0.0039 Delta +
01/09/22 11:44:14 11:44:20 0.026 0.0033 Delta +
01/09/22 20:21:03 20:21:09 -0.042 -0.0078 VT ROC
01/09/22 20:21:01 20:21:13 -0.043 -0.0065 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
01/10/22 01:43:22 01:43:26 -0.024 -0.0029 Delta -
01/10/22 09:44:20 09:44:24 0.025 0.0028 Delta +
01/10/22 11:07:03 11:07:10 -0.026 -0.0031 Delta -
01/10/22 13:12:30 13:12:34 -0.024 -0.0028 Delta -
01/10/22 15:05:52 15:05:58 -0.025 -0.0029 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
01/11/22 09:00:14 09:00:15 0.026 0.0043 VT ROC
01/11/22 09:00:12 09:00:21 0.027 0.0036 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
01/12/22 06:00:08 06:00:12 -0.023 -0.0030 Delta -
01/12/22 18:50:52 18:50:55 -0.028 -0.0042 VT ROC
01/12/22 18:50:51 18:51:00 -0.030 -0.0039 Delta -
01/12/22 19:14:12 19:14:19 -0.026 -0.0034 Delta -
01/12/22 20:56:16 20:56:20 0.023 0.0026 Delta +
01/12/22 22:14:15 22:14:22 0.026 0.0032 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
01/13/22 00:21:42 00:21:46 -0.030 -0.0054 VT ROC
01/13/22 00:21:43 00:21:54 -0.034 -0.0048 Delta -
01/13/22 06:06:12 06:06:19 -0.025 -0.0031 Delta -
01/13/22 09:06:31 09:06:38 0.026 0.0034 Delta +
01/13/22 10:37:36 10:37:41 0.025 0.0026 Delta +
01/13/22 14:37:45 14:37:50 -0.024 -0.0027 Delta -
01/13/22 16:11:32 16:11:37 -0.024 -0.0025 Delta -
01/13/22 17:35:03 17:35:12 -0.028 -0.0032 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
01/14/22 02:19:49 02:19:54 -0.024 -0.0026 Delta -
01/14/22 02:37:10 02:37:17 -0.025 -0.0028 Delta -
01/14/22 05:32:45 05:32:52 -0.024 -0.0026 Delta -
01/14/22 22:43:18 22:43:23 0.024 0.0030 Delta +
01/14/22 22:46:10 22:46:13 0.027 0.0044 VT ROC
01/14/22 22:46:11 22:46:19 0.029 0.0040 Delta +
01/14/22 23:06:34 23:06:37 0.026 0.0042 VT ROC
01/14/22 23:06:33 23:06:43 0.029 0.0037 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
01/15/22 05:25:55 05:26:01 -0.025 -0.0027 Delta -
01/15/22 16:55:37 16:55:39 -0.021 -0.0038 VT ROC
01/15/22 16:55:39 16:55:47 -0.028 -0.0034 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
01/16/22 12:57:51 12:57:58 -0.042 -0.0066 VT ROC
01/16/22 12:57:51 12:58:03 -0.043 -0.0057 Delta -
01/16/22 17:19:31 17:19:35 -0.029 -0.0061 VT ROC
01/16/22 17:19:31 17:19:39 -0.030 -0.0048 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
01/17/22 11:22:33 11:22:43 0.025 0.0032 Delta +
01/17/22 20:27:44 20:27:50 0.024 0.0031 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
01/18/22 04:32:54 04:33:04 -0.024 -0.0027 Delta -
01/18/22 11:03:32 11:03:39 0.025 0.0033 Delta +
01/18/22 12:41:12 12:41:12 -0.024 -0.0037 VT ROC
01/18/22 12:41:13 12:41:16 -0.030 -0.0042 VT ROC
01/18/22 12:41:12 12:41:22 -0.031 -0.0042 Delta -
01/18/22 13:05:37 13:05:40 -0.022 -0.0041 VT ROC
01/18/22 13:05:39 13:05:47 -0.028 -0.0035 Delta -
01/18/22 21:59:26 21:59:30 -0.028 -0.0045 VT ROC
01/18/22 21:59:26 21:59:35 -0.029 -0.0043 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
01/19/22 07:22:32 07:22:40 0.027 0.0032 Delta +
01/19/22 12:22:21 12:22:29 0.026 0.0031 Delta +


PSFM Hardware and software by Robert M. Orndorff
Generated at 12:22:35 19-Jan-2022 UTC.
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