Eastern Interconnection Frequency Events

Generated by the PSFM-1 Frequency Recorder

(updated as events are recorded.)
All times are UTC.
Generated at 13:30:33 28-May-2022 UTC.

Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/01/22 04:00:06 04:00:08 -0.022 -0.0042 VT ROC
05/01/22 07:00:07 07:00:09 -0.023 -0.0038 VT ROC
05/01/22 07:00:08 07:00:15 -0.026 -0.0037 Delta -
05/01/22 09:00:07 09:00:09 -0.025 -0.0038 VT ROC
05/01/22 09:00:06 09:00:13 -0.026 -0.0037 Delta -
05/01/22 13:01:26 13:01:30 0.031 0.0046 VT ROC
05/01/22 13:01:39 13:01:41 0.030 0.0038 VT ROC
05/01/22 13:01:24 13:01:43 0.034 0.0044 Delta +
05/01/22 21:01:04 21:01:12 -0.044 -0.0083 VT ROC
05/01/22 21:01:04 21:01:16 -0.045 -0.0074 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/02/22 02:30:05 02:30:07 -0.027 -0.0041 VT ROC
05/02/22 02:30:02 02:30:11 -0.028 -0.0035 Delta -
05/02/22 04:00:05 04:00:09 -0.028 -0.0045 VT ROC
05/02/22 04:00:06 04:00:15 -0.029 -0.0044 Delta -
05/02/22 08:00:05 08:00:09 -0.023 -0.0045 VT ROC
05/02/22 08:12:13 08:12:16 0.023 0.0041 VT ROC
05/02/22 08:12:14 08:12:20 0.025 0.0040 Delta +
05/02/22 09:59:16 09:59:23 0.036 0.0049 VT ROC
05/02/22 09:59:15 09:59:27 0.037 0.0048 Delta +
05/02/22 10:00:06 10:00:09 -0.028 -0.0042 VT ROC
05/02/22 10:00:05 10:00:18 -0.030 -0.0041 Delta -
05/02/22 10:01:18 10:01:22 0.026 0.0047 VT ROC
05/02/22 10:01:18 10:01:26 0.028 0.0041 Delta +
05/02/22 10:40:17 10:40:21 0.029 0.0044 VT ROC
05/02/22 10:40:17 10:40:24 0.029 0.0042 Delta +
05/02/22 22:06:35 22:06:41 -0.041 -0.0081 VT ROC
05/02/22 22:06:33 22:06:44 -0.041 -0.0066 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/03/22 04:00:05 04:00:09 -0.024 -0.0038 VT ROC
05/03/22 04:00:06 04:00:12 -0.025 -0.0036 Delta -
05/03/22 12:00:08 12:00:09 -0.021 -0.0036 VT ROC
05/03/22 19:41:41 19:41:50 -0.063 -0.0119 VT ROC
05/03/22 19:41:40 19:41:54 -0.064 -0.0099 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/04/22 07:00:06 07:00:09 -0.022 -0.0042 VT ROC
05/04/22 07:00:08 07:00:12 -0.024 -0.0037 Delta -
05/04/22 08:29:39 08:29:43 0.032 0.0040 VT ROC
05/04/22 08:29:37 08:29:47 0.034 0.0040 Delta +
05/04/22 10:00:07 10:00:09 -0.026 -0.0042 VT ROC
05/04/22 10:00:06 10:00:14 -0.028 -0.0036 Delta -
05/04/22 10:23:38 10:23:42 0.030 0.0036 VT ROC
05/04/22 10:23:38 10:23:49 0.033 0.0037 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/05/22 04:00:07 04:00:09 -0.023 -0.0042 VT ROC
05/05/22 04:00:08 04:00:12 -0.024 -0.0037 Delta -
05/05/22 09:00:07 09:00:11 -0.026 -0.0037 VT ROC
05/05/22 09:00:08 09:00:16 -0.029 -0.0037 Delta -
05/05/22 10:05:12 10:05:16 0.023 0.0045 VT ROC
05/05/22 10:05:14 10:05:20 0.028 0.0038 Delta +
05/05/22 10:06:36 10:06:37 0.022 0.0042 VT ROC
05/05/22 13:57:14 13:57:16 -0.021 -0.0047 VT ROC
05/05/22 13:57:16 13:57:20 -0.023 -0.0037 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/06/22 03:29:50 03:29:52 0.028 0.0040 VT ROC
05/06/22 03:29:48 03:29:56 0.029 0.0037 Delta +
05/06/22 04:00:06 04:00:08 -0.021 -0.0040 VT ROC
05/06/22 08:54:21 08:54:22 0.031 0.0036 VT ROC
05/06/22 08:54:23 08:54:24 0.028 0.0035 VT ROC
05/06/22 09:01:30 09:01:33 0.028 0.0041 VT ROC
05/06/22 09:01:28 09:01:37 0.029 0.0041 Delta +
05/06/22 18:42:54 18:42:57 0.024 0.0039 VT ROC
05/06/22 18:42:56 18:43:02 0.026 0.0037 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/07/22 04:48:08 04:48:11 -0.025 -0.0041 VT ROC
05/07/22 04:48:09 04:48:13 -0.026 -0.0036 Delta -
05/07/22 08:42:02 08:42:04 0.022 0.0037 VT ROC
05/07/22 08:59:17 08:59:19 0.027 0.0040 VT ROC
05/07/22 08:59:16 08:59:26 0.029 0.0040 Delta +
05/07/22 09:59:23 09:59:29 0.030 0.0049 VT ROC
05/07/22 09:59:23 09:59:33 0.031 0.0046 Delta +
05/07/22 10:43:07 10:43:14 -0.036 -0.0051 VT ROC
05/07/22 10:43:05 10:43:19 -0.038 -0.0051 Delta -
05/07/22 11:57:27 11:57:33 0.034 0.0048 VT ROC
05/07/22 11:57:27 11:57:38 0.035 0.0045 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/08/22 00:14:21 00:14:23 0.030 0.0040 VT ROC
05/08/22 00:14:18 00:14:27 0.031 0.0037 Delta +
05/08/22 03:46:17 03:46:20 0.027 0.0038 VT ROC
05/08/22 04:26:15 04:26:17 -0.028 -0.0035 VT ROC
05/08/22 05:30:06 05:30:12 -0.025 -0.0035 Delta -
05/08/22 10:58:42 10:58:44 0.027 0.0036 VT ROC
05/08/22 10:58:40 10:58:48 0.028 0.0035 Delta +
05/08/22 11:02:32 11:02:33 0.024 0.0037 VT ROC
05/08/22 11:06:13 11:06:19 0.032 0.0058 VT ROC
05/08/22 11:06:14 11:06:24 0.033 0.0048 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/09/22 04:44:02 04:44:05 0.032 0.0045 VT ROC
05/09/22 04:43:57 04:44:08 0.033 0.0041 Delta +
05/09/22 05:00:07 05:00:09 -0.022 -0.0038 VT ROC
05/09/22 05:00:08 05:00:18 -0.028 -0.0035 Delta -
05/09/22 07:49:19 07:49:23 0.028 0.0036 VT ROC
05/09/22 07:49:18 07:49:26 0.029 0.0036 Delta +
05/09/22 07:55:24 07:55:30 0.034 0.0055 VT ROC
05/09/22 07:55:23 07:55:32 0.035 0.0049 Delta +
05/09/22 10:00:45 10:00:47 -0.024 -0.0035 VT ROC
05/09/22 22:24:08 22:24:39 59.936   Under 59.940


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/10/22 11:55:30 11:55:34 0.027 0.0038 VT ROC
05/10/22 11:55:29 11:55:40 0.028 0.0037 Delta +
05/10/22 15:47:57 15:48:00 -0.028 -0.0053 VT ROC
05/10/22 15:47:57 15:48:05 -0.029 -0.0045 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/11/22 03:50:59 03:51:05 -0.038 -0.0063 VT ROC
05/11/22 03:50:59 03:51:09 -0.039 -0.0058 Delta -
05/11/22 04:00:07 04:00:09 -0.021 -0.0040 VT ROC
05/11/22 09:00:21 09:00:26 0.033 0.0048 VT ROC
05/11/22 09:00:19 09:00:31 0.034 0.0046 Delta +
05/11/22 09:14:16 09:14:18 0.023 0.0038 VT ROC
05/11/22 09:35:09 09:35:11 0.024 0.0037 VT ROC
05/11/22 09:35:09 09:35:21 0.029 0.0036 Delta +
05/11/22 19:22:22 19:22:29 -0.039 -0.0074 VT ROC
05/11/22 19:22:22 19:22:35 -0.040 -0.0061 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/12/22 08:33:08 08:33:11 -0.022 -0.0040 VT ROC
05/12/22 19:57:17 19:57:18 -0.022 -0.0038 VT ROC


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/13/22 03:04:24 03:04:59 59.937   Under 59.940
05/13/22 04:00:06 04:00:09 -0.023 -0.0044 VT ROC
05/13/22 04:00:07 04:00:11 -0.024 -0.0038 Delta -
05/13/22 10:33:57 10:33:58 0.023 0.0039 VT ROC
05/13/22 10:33:56 10:34:00 0.024 0.0035 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/14/22 13:10:27 13:10:27 0.027 0.0037 VT ROC
05/14/22 13:10:28 13:10:29 0.028 0.0041 VT ROC
05/14/22 13:10:25 13:10:34 0.029 0.0041 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/15/22 05:39:47 05:39:49 -0.029 -0.0036 VT ROC
05/15/22 05:39:44 05:39:53 -0.030 -0.0036 Delta -
05/15/22 12:41:30 12:41:37 -0.037 -0.0084 VT ROC
05/15/22 12:41:30 12:41:39 -0.037 -0.0066 Delta -
05/15/22 13:04:17 13:04:18 0.025 0.0037 VT ROC
05/15/22 13:04:15 13:04:21 0.026 0.0037 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/16/22 04:18:07 04:18:09 -0.026 -0.0037 VT ROC
05/16/22 11:12:16 11:12:17 0.028 0.0043 VT ROC
05/16/22 11:12:18 11:12:20 0.029 0.0040 VT ROC
05/16/22 11:12:15 11:12:24 0.030 0.0039 Delta +
05/16/22 13:56:37 13:56:39 0.028 0.0039 VT ROC
05/16/22 13:56:35 13:56:44 0.029 0.0042 Delta +
05/16/22 19:31:50 19:31:58 -0.050 -0.0085 VT ROC
05/16/22 19:31:48 19:32:01 -0.051 -0.0076 Delta -
05/16/22 19:31:53 19:32:10 59.936   Under 59.940
05/16/22 19:53:06 19:53:13 -0.037 -0.0048 VT ROC
05/16/22 19:53:06 19:53:18 -0.038 -0.0047 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/17/22 03:01:05 03:01:08 -0.027 -0.0039 VT ROC
05/17/22 03:01:03 03:01:13 -0.028 -0.0038 Delta -
05/17/22 15:11:37 15:11:40 0.028 0.0040 VT ROC
05/17/22 15:11:36 15:11:46 0.029 0.0037 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/18/22 02:36:39 02:36:41 -0.021 -0.0050 VT ROC
05/18/22 02:36:41 02:36:47 -0.027 -0.0043 Delta -
05/18/22 18:57:59 18:58:05 -0.037 -0.0069 VT ROC
05/18/22 18:57:58 18:58:09 -0.039 -0.0056 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/19/22 08:59:38 08:59:43 0.030 0.0044 VT ROC
05/19/22 08:59:38 08:59:46 0.032 0.0041 Delta +
05/19/22 09:43:28 09:43:29 0.027 0.0037 VT ROC
05/19/22 09:43:26 09:43:34 0.028 0.0036 Delta +
05/19/22 09:50:09 09:50:14 0.032 0.0049 VT ROC
05/19/22 09:50:09 09:50:19 0.034 0.0044 Delta +
05/19/22 13:34:28 13:34:30 0.021 0.0039 VT ROC
05/19/22 20:50:25 20:50:29 0.028 0.0041 VT ROC
05/19/22 20:50:23 20:50:33 0.030 0.0036 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/20/22 12:00:05 12:00:09 -0.030 -0.0041 VT ROC
05/20/22 12:00:04 12:00:12 -0.030 -0.0041 Delta -
05/20/22 12:15:12 12:15:16 0.027 0.0045 VT ROC
05/20/22 12:15:14 12:15:20 0.028 0.0040 Delta +
05/20/22 16:55:34 16:55:38 -0.031 -0.0064 VT ROC
05/20/22 16:55:34 16:55:43 -0.031 -0.0052 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/21/22 19:48:56 19:48:58 -0.026 -0.0042 VT ROC
05/21/22 19:48:56 19:49:05 -0.030 -0.0040 Delta -
05/21/22 20:00:34 20:00:38 -0.026 -0.0041 VT ROC
05/21/22 20:00:35 20:00:44 -0.028 -0.0039 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/22/22 06:23:14 06:23:16 0.025 0.0039 VT ROC
05/22/22 09:45:15 09:45:19 0.026 0.0044 VT ROC
05/22/22 09:45:16 09:45:23 0.027 0.0044 Delta +
05/22/22 11:20:12 11:20:16 0.028 0.0047 VT ROC
05/22/22 11:20:12 11:20:20 0.029 0.0043 Delta +
05/22/22 12:10:58 12:11:03 0.029 0.0044 VT ROC
05/22/22 12:10:57 12:11:05 0.030 0.0040 Delta +
05/22/22 14:33:36 14:33:36 0.026 0.0037 VT ROC
05/22/22 14:33:37 14:33:39 0.028 0.0042 VT ROC
05/22/22 14:33:35 14:33:42 0.028 0.0040 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/23/22 10:12:32 10:12:34 0.024 0.0037 VT ROC
05/23/22 10:12:31 10:12:39 0.027 0.0036 Delta +
05/23/22 21:17:08 21:18:10 59.923   Under 59.940


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/24/22 03:11:34 03:11:44 0.028 0.0035 Delta +
05/24/22 06:36:45 06:36:51 -0.035 -0.0063 VT ROC
05/24/22 06:36:44 06:36:55 -0.037 -0.0051 Delta -
05/24/22 06:37:38 06:37:43 0.034 0.0056 VT ROC
05/24/22 06:37:36 06:37:46 0.034 0.0051 Delta +
05/24/22 06:40:54 06:40:59 -0.032 -0.0052 VT ROC
05/24/22 06:40:54 06:41:04 -0.034 -0.0045 Delta -
05/24/22 07:00:08 07:00:10 -0.023 -0.0041 VT ROC
05/24/22 10:03:34 10:03:35 0.020 0.0038 VT ROC
05/24/22 10:45:12 10:45:18 0.033 0.0051 VT ROC
05/24/22 10:45:10 10:45:19 0.034 0.0043 Delta +
05/24/22 13:56:31 13:56:33 0.020 0.0042 VT ROC


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/25/22 03:04:07 03:04:10 -0.030 -0.0037 VT ROC
05/25/22 03:04:04 03:04:13 -0.031 -0.0037 Delta -
05/25/22 04:34:37 04:34:40 0.022 0.0041 VT ROC
05/25/22 08:00:28 08:00:30 0.024 0.0037 VT ROC
05/25/22 08:00:28 08:00:35 0.027 0.0039 Delta +
05/25/22 11:00:08 11:00:09 -0.023 -0.0039 VT ROC
05/25/22 11:00:08 11:00:15 -0.026 -0.0037 Delta -
05/25/22 13:36:13 13:36:16 0.025 0.0042 VT ROC
05/25/22 13:36:12 13:36:19 0.026 0.0036 Delta +
05/25/22 20:41:09 20:41:13 0.029 0.0039 VT ROC
05/25/22 20:41:09 20:41:17 0.031 0.0037 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/26/22 09:25:09 09:25:11 -0.021 -0.0044 VT ROC
05/26/22 11:00:00 11:00:05 0.031 0.0049 VT ROC
05/26/22 10:59:59 11:00:11 0.033 0.0048 Delta +
05/26/22 11:52:27 11:52:31 0.031 0.0046 VT ROC
05/26/22 11:52:25 11:52:34 0.032 0.0041 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/27/22 07:43:45 07:43:49 -0.027 -0.0042 VT ROC
05/27/22 07:43:46 07:43:54 -0.030 -0.0041 Delta -
05/27/22 09:39:13 09:39:19 0.026 0.0035 Delta +
05/27/22 10:10:21 10:10:23 0.025 0.0043 VT ROC
05/27/22 10:10:21 10:10:26 0.025 0.0037 Delta +
05/27/22 11:00:12 11:00:16 0.033 0.0051 VT ROC
05/27/22 11:00:12 11:00:21 0.034 0.0047 Delta +
05/27/22 11:03:41 11:03:47 0.034 0.0049 VT ROC
05/27/22 11:03:40 11:03:50 0.035 0.0045 Delta +
05/27/22 11:45:36 11:45:38 0.023 0.0040 VT ROC


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
05/28/22 00:06:42 00:06:49 0.026 0.0035 Delta +
05/28/22 04:00:07 04:00:09 -0.022 -0.0043 VT ROC
05/28/22 11:58:16 11:58:23 0.027 0.0036 Delta +
05/28/22 12:00:10 12:00:17 0.039 0.0054 VT ROC
05/28/22 12:00:09 12:00:20 0.041 0.0049 Delta +
05/28/22 12:30:42 12:30:47 0.028 0.0043 VT ROC
05/28/22 12:30:43 12:30:51 0.030 0.0044 Delta +
05/28/22 13:30:23 13:30:28 0.032 0.0053 VT ROC


PSFM Hardware and software by Robert M. Orndorff
Generated at 13:30:33 28-May-2022 UTC.
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