Eastern Interconnection Frequency Events

Generated by the PSFM-1 Frequency Recorder

(updated as events are recorded.)
All times are UTC.
Generated at 21:10:45 24-Feb-2021 UTC.

Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/01/21 09:25:23 09:25:24 0.029 0.0043 VT ROC
02/01/21 09:25:21 09:25:31 0.032 0.0039 Delta +
02/01/21 10:42:56 10:43:01 0.025 0.0029 Delta +
02/01/21 20:28:59 20:29:03 -0.027 -0.0052 VT ROC
02/01/21 20:29:00 20:29:07 -0.029 -0.0045 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/02/21 09:45:22 09:45:28 0.025 0.0030 Delta +
02/02/21 09:49:40 09:49:49 0.038 0.0047 VT ROC
02/02/21 09:49:40 09:49:53 0.040 0.0047 Delta +
02/02/21 11:18:41 11:18:46 0.023 0.0029 Delta +
02/02/21 13:21:31 13:21:38 0.025 0.0028 Delta +
02/02/21 21:35:09 21:35:12 0.030 0.0040 VT ROC
02/02/21 21:35:06 21:35:17 0.031 0.0038 Delta +
02/02/21 21:59:10 21:59:17 0.025 0.0033 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/03/21 03:57:27 03:57:35 -0.024 -0.0025 Delta -
02/03/21 04:46:08 04:46:14 -0.025 -0.0031 Delta -
02/03/21 05:26:40 05:26:50 -0.027 -0.0030 Delta -
02/03/21 05:39:51 05:39:58 0.025 0.0026 Delta +
02/03/21 21:22:17 21:22:19 0.027 0.0038 VT ROC
02/03/21 21:22:15 21:22:23 0.028 0.0036 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/04/21 10:56:07 10:56:16 0.026 0.0037 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/05/21 01:53:07 01:53:17 -0.028 -0.0033 Delta -
02/05/21 04:11:42 04:11:45 -0.022 -0.0044 VT ROC
02/05/21 04:42:06 04:42:13 -0.027 -0.0034 Delta -
02/05/21 05:18:15 05:18:20 -0.032 -0.0064 VT ROC
02/05/21 05:18:15 05:18:24 -0.033 -0.0054 Delta -
02/05/21 06:38:21 06:38:26 0.024 0.0025 Delta +
02/05/21 12:20:54 12:20:59 0.024 0.0027 Delta +
02/05/21 20:18:44 20:18:51 0.025 0.0032 Delta +
02/05/21 21:00:11 21:00:15 0.029 0.0043 VT ROC
02/05/21 21:00:11 21:00:23 0.031 0.0039 Delta +
02/05/21 21:24:05 21:24:08 -0.023 -0.0027 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/06/21 13:26:04 13:26:07 -0.027 -0.0048 VT ROC
02/06/21 13:26:04 13:26:12 -0.029 -0.0043 Delta -
02/06/21 17:32:44 17:32:51 -0.025 -0.0029 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/07/21 04:17:30 04:17:36 0.025 0.0029 Delta +
02/07/21 10:09:08 10:09:11 -0.028 -0.0046 VT ROC
02/07/21 10:09:08 10:09:17 -0.029 -0.0040 Delta -
02/07/21 15:21:30 15:21:35 -0.031 -0.0051 VT ROC
02/07/21 15:21:30 15:21:39 -0.032 -0.0047 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/08/21 17:17:21 17:17:26 -0.024 -0.0028 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/09/21 08:15:11 08:15:15 0.024 0.0031 Delta +
02/09/21 10:40:11 10:40:17 0.024 0.0033 Delta +
02/09/21 12:39:28 12:39:38 0.028 0.0032 Delta +
02/09/21 19:56:23 19:56:28 -0.024 -0.0028 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/10/21 10:25:14 10:25:20 0.025 0.0029 Delta +
02/10/21 21:40:46 21:40:51 0.024 0.0028 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/11/21 00:38:07 00:38:10 -0.024 -0.0047 VT ROC
02/11/21 00:38:08 00:38:15 -0.027 -0.0040 Delta -
02/11/21 04:04:57 04:05:05 -0.025 -0.0027 Delta -
02/11/21 09:45:00 09:45:08 0.027 0.0033 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/12/21 09:29:58 09:30:02 0.025 0.0032 Delta +
02/12/21 10:17:19 10:17:23 0.024 0.0027 Delta +
02/12/21 18:10:41 18:10:45 -0.024 -0.0028 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/14/21 10:01:15 10:01:17 0.024 0.0039 VT ROC
02/14/21 10:01:15 10:01:20 0.025 0.0035 Delta +
02/14/21 11:28:41 11:28:45 -0.029 -0.0055 VT ROC
02/14/21 11:28:40 11:28:49 -0.030 -0.0045 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/16/21 09:07:40 09:07:43 -0.021 -0.0040 VT ROC
02/16/21 09:07:42 09:07:46 -0.024 -0.0032 Delta -
02/16/21 11:55:42 11:55:44 0.025 0.0036 VT ROC
02/16/21 11:55:41 11:55:49 0.027 0.0035 Delta +
02/16/21 23:59:26 23:59:34 -0.044 -0.0083 VT ROC
02/16/21 23:59:26 23:59:40 -0.045 -0.0069 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/17/21 10:01:22 10:01:31 0.028 0.0033 Delta +
02/17/21 18:40:05 18:40:12 -0.034 -0.0059 VT ROC
02/17/21 18:40:06 18:40:16 -0.035 -0.0049 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/18/21 07:50:08 07:50:13 -0.034 -0.0061 VT ROC
02/18/21 07:50:07 07:50:16 -0.035 -0.0053 Delta -
02/18/21 07:52:00 07:52:06 0.024 0.0027 Delta +
02/18/21 22:56:32 22:56:37 -0.024 -0.0028 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/19/21 10:14:33 10:14:35 0.024 0.0043 VT ROC
02/19/21 10:14:33 10:14:40 0.027 0.0038 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/20/21 06:26:02 06:26:12 0.030 0.0035 Delta +
02/20/21 21:14:51 21:14:59 -0.040 -0.0061 VT ROC
02/20/21 21:14:50 21:15:02 -0.042 -0.0055 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/22/21 10:36:44 10:36:45 0.022 0.0037 VT ROC


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/23/21 05:08:35 05:08:42 -0.026 -0.0030 Delta -
02/23/21 08:21:37 08:21:46 0.029 0.0035 Delta +
02/23/21 11:47:43 11:47:49 0.025 0.0028 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
02/24/21 07:52:43 07:52:47 0.024 0.0026 Delta +
02/24/21 08:09:06 08:09:10 -0.023 -0.0029 Delta -
02/24/21 09:02:03 09:02:04 0.024 0.0035 VT ROC
02/24/21 09:02:02 09:02:10 0.026 0.0036 Delta +
02/24/21 09:29:19 09:29:29 0.026 0.0029 Delta +
02/24/21 14:00:07 14:00:09 -0.026 -0.0037 VT ROC
02/24/21 14:00:07 14:00:15 -0.030 -0.0035 Delta -
02/24/21 17:42:40 17:42:48 -0.027 -0.0033 Delta -
02/24/21 21:10:31 21:10:32 0.029 0.0040 VT ROC
02/24/21 21:10:27 21:10:37 0.031 0.0039 Delta +


PSFM Hardware and software by Robert M. Orndorff
Generated at 21:10:45 24-Feb-2021 UTC.
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