Eastern Interconnection Frequency Events

Generated by the PSFM-1 Frequency Recorder

(updated as events are recorded.)
All times are UTC.
Generated at 10:25:10 30-Apr-2025 UTC.

Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/01/25 04:00:06 04:00:09 -0.024 -0.0046 VT ROC
04/01/25 09:33:59 09:34:06 0.024 0.0039 Delta +
04/01/25 11:00:06 11:00:09 -0.022 -0.0038 VT ROC
04/01/25 14:15:06 14:15:09 -0.026 -0.0038 VT ROC
04/01/25 14:15:04 14:15:13 -0.027 -0.0036 Delta -
04/01/25 21:22:58 21:22:59 0.024 0.0040 VT ROC
04/01/25 21:22:58 21:23:04 0.027 0.0037 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/02/25 02:29:14 02:29:18 -0.029 -0.0048 VT ROC
04/02/25 02:29:11 02:29:21 -0.030 -0.0042 Delta -
04/02/25 07:40:09 07:40:14 0.035 0.0062 VT ROC
04/02/25 07:40:08 07:40:17 0.036 0.0059 Delta +
04/02/25 09:40:29 09:40:31 0.026 0.0044 VT ROC
04/02/25 09:40:28 09:40:35 0.027 0.0040 Delta +
04/02/25 16:00:06 16:00:08 -0.023 -0.0038 VT ROC
04/02/25 17:34:41 17:34:43 0.028 0.0036 VT ROC
04/02/25 17:34:38 17:34:47 0.030 0.0035 Delta +
04/02/25 17:53:41 17:53:47 0.024 0.0036 Delta +
04/02/25 18:49:41 18:49:44 -0.026 -0.0038 VT ROC
04/02/25 18:49:41 18:49:51 -0.029 -0.0036 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/03/25 04:00:05 04:00:08 -0.021 -0.0047 VT ROC
04/03/25 06:46:55 06:46:56 0.024 0.0038 VT ROC
04/03/25 09:07:13 09:07:23 0.028 0.0036 Delta +
04/03/25 10:00:05 10:00:09 -0.028 -0.0042 VT ROC
04/03/25 10:00:05 10:00:19 -0.030 -0.0039 Delta -
04/03/25 12:42:40 12:42:44 -0.029 -0.0040 VT ROC
04/03/25 12:42:39 12:42:50 -0.031 -0.0039 Delta -
04/03/25 14:20:28 14:20:30 0.028 0.0037 VT ROC
04/03/25 14:20:24 14:20:36 0.030 0.0036 Delta +
04/03/25 15:53:10 15:53:12 0.029 0.0036 VT ROC
04/03/25 15:53:07 15:53:19 0.031 0.0037 Delta +
04/03/25 19:43:35 19:43:37 -0.022 -0.0044 VT ROC


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/04/25 04:00:06 04:00:09 -0.021 -0.0042 VT ROC
04/04/25 08:01:02 08:01:10 0.038 0.0049 VT ROC
04/04/25 08:01:01 08:01:13 0.040 0.0052 Delta +
04/04/25 08:24:43 08:24:49 -0.035 -0.0060 VT ROC
04/04/25 08:24:42 08:24:52 -0.036 -0.0052 Delta -
04/04/25 09:21:14 09:21:19 0.034 0.0049 VT ROC
04/04/25 09:21:13 09:21:24 0.035 0.0044 Delta +
04/04/25 09:32:44 09:32:46 0.021 0.0042 VT ROC
04/04/25 09:32:46 09:32:52 0.025 0.0038 Delta +
04/04/25 09:36:52 09:36:59 0.037 0.0055 VT ROC
04/04/25 09:36:52 09:37:03 0.038 0.0048 Delta +
04/04/25 10:32:57 10:33:02 0.026 0.0037 Delta +
04/04/25 11:00:05 11:00:08 -0.027 -0.0041 VT ROC
04/04/25 11:00:04 11:00:12 -0.029 -0.0040 Delta -
04/04/25 12:04:30 12:04:32 0.023 0.0038 VT ROC
04/04/25 15:56:09 15:56:10 0.023 0.0037 VT ROC
04/04/25 16:00:06 16:00:08 -0.022 -0.0039 VT ROC
04/04/25 17:29:33 17:29:35 -0.023 -0.0044 VT ROC
04/04/25 17:29:34 17:29:38 -0.025 -0.0038 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/05/25 04:00:04 04:00:09 -0.029 -0.0053 VT ROC
04/05/25 04:00:04 04:00:11 -0.029 -0.0047 Delta -
04/05/25 08:20:18 08:20:25 -0.051 -0.0110 VT ROC
04/05/25 08:20:18 08:20:28 -0.051 -0.0099 Delta -
04/05/25 10:33:50 10:33:55 0.031 0.0049 VT ROC
04/05/25 10:33:50 10:33:58 0.032 0.0048 Delta +
04/05/25 10:39:54 10:39:58 0.030 0.0046 VT ROC
04/05/25 10:39:52 10:40:01 0.031 0.0044 Delta +
04/05/25 15:39:55 15:39:56 0.030 0.0037 VT ROC
04/05/25 15:39:57 15:39:59 0.030 0.0040 VT ROC
04/05/25 15:39:53 15:40:07 0.033 0.0042 Delta +
04/05/25 20:03:23 20:03:27 0.032 0.0045 VT ROC
04/05/25 20:03:19 20:03:31 0.034 0.0039 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/06/25 05:27:21 05:27:24 0.029 0.0043 VT ROC
04/06/25 05:27:17 05:27:26 0.030 0.0038 Delta +
04/06/25 06:00:04 06:00:07 -0.026 -0.0040 VT ROC
04/06/25 06:00:05 06:00:11 -0.027 -0.0039 Delta -
04/06/25 10:30:07 10:30:09 -0.024 -0.0040 VT ROC
04/06/25 10:30:07 10:30:16 -0.026 -0.0036 Delta -
04/06/25 10:30:46 10:30:51 0.037 0.0058 VT ROC
04/06/25 10:30:44 10:30:56 0.038 0.0052 Delta +
04/06/25 10:40:17 10:40:19 0.025 0.0042 VT ROC
04/06/25 10:40:28 10:40:33 0.033 0.0049 VT ROC
04/06/25 10:40:17 10:40:35 0.034 0.0043 Delta +
04/06/25 11:00:07 11:00:09 -0.023 -0.0040 VT ROC
04/06/25 11:00:07 11:00:13 -0.026 -0.0035 Delta -
04/06/25 11:50:20 11:50:27 0.041 0.0057 VT ROC
04/06/25 11:50:17 11:50:31 0.042 0.0053 Delta +
04/06/25 14:40:10 14:40:15 0.025 0.0036 Delta +
04/06/25 17:29:22 17:29:26 0.033 0.0042 VT ROC
04/06/25 17:29:18 17:29:29 0.034 0.0040 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/07/25 03:58:22 03:58:33 0.033 0.0039 Delta +
04/07/25 04:00:05 04:00:09 -0.027 -0.0048 VT ROC
04/07/25 04:00:05 04:00:11 -0.028 -0.0043 Delta -
04/07/25 07:14:22 07:14:26 0.030 0.0042 VT ROC
04/07/25 07:14:19 07:14:29 0.031 0.0039 Delta +
04/07/25 07:26:26 07:26:33 -0.040 -0.0063 VT ROC
04/07/25 07:26:25 07:26:39 -0.041 -0.0059 Delta -
04/07/25 07:27:15 07:27:18 0.030 0.0037 VT ROC
04/07/25 07:27:12 07:27:21 0.032 0.0037 Delta +
04/07/25 10:00:32 10:00:36 0.028 0.0047 VT ROC
04/07/25 10:00:32 10:00:41 0.030 0.0041 Delta +
04/07/25 10:12:56 10:13:00 0.028 0.0038 VT ROC
04/07/25 10:12:54 10:13:01 0.029 0.0035 Delta +
04/07/25 12:00:06 12:00:08 -0.024 -0.0035 VT ROC
04/07/25 12:10:11 12:10:13 0.026 0.0039 VT ROC
04/07/25 19:16:49 19:16:50 -0.020 -0.0041 VT ROC
04/07/25 19:16:51 19:16:53 -0.026 -0.0041 VT ROC
04/07/25 19:16:50 19:16:58 -0.028 -0.0042 Delta -
04/07/25 21:40:59 21:41:04 -0.032 -0.0039 VT ROC
04/07/25 21:40:56 21:41:06 -0.033 -0.0037 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/08/25 07:58:49 07:58:54 0.033 0.0050 VT ROC
04/08/25 07:58:48 07:58:58 0.034 0.0047 Delta +
04/08/25 08:07:50 08:07:56 0.036 0.0054 VT ROC
04/08/25 08:07:47 08:07:59 0.037 0.0049 Delta +
04/08/25 13:00:05 13:00:08 -0.024 -0.0041 VT ROC
04/08/25 13:00:06 13:00:11 -0.025 -0.0036 Delta -
04/08/25 15:22:16 15:22:25 -0.051 -0.0089 VT ROC
04/08/25 15:22:15 15:22:28 -0.052 -0.0078 Delta -
04/08/25 20:22:23 20:22:24 -0.023 -0.0042 VT ROC
04/08/25 20:22:24 20:22:30 -0.026 -0.0040 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/09/25 04:00:06 04:00:08 -0.021 -0.0046 VT ROC
04/09/25 05:00:05 05:00:09 -0.027 -0.0050 VT ROC
04/09/25 05:00:04 05:00:12 -0.028 -0.0041 Delta -
04/09/25 07:00:05 07:00:08 -0.026 -0.0043 VT ROC
04/09/25 07:00:03 07:00:11 -0.026 -0.0037 Delta -
04/09/25 08:00:06 08:00:08 -0.023 -0.0038 VT ROC
04/09/25 15:57:02 15:57:08 -0.042 -0.0083 VT ROC
04/09/25 15:57:01 15:57:13 -0.044 -0.0069 Delta -
04/09/25 19:59:05 19:59:09 -0.028 -0.0041 VT ROC
04/09/25 19:59:03 19:59:12 -0.030 -0.0036 Delta -
04/09/25 21:00:11 21:00:18 0.035 0.0051 VT ROC
04/09/25 21:00:12 21:00:22 0.036 0.0049 Delta +
04/09/25 23:35:35 23:35:39 -0.026 -0.0049 VT ROC
04/09/25 23:35:35 23:35:41 -0.027 -0.0047 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/10/25 04:00:04 04:00:08 -0.027 -0.0054 VT ROC
04/10/25 04:00:05 04:00:10 -0.027 -0.0045 Delta -
04/10/25 08:28:53 08:28:55 0.025 0.0038 VT ROC
04/10/25 08:55:32 08:55:37 0.026 0.0047 VT ROC
04/10/25 08:55:34 08:55:41 0.029 0.0043 Delta +
04/10/25 08:58:54 08:58:58 0.022 0.0041 VT ROC
04/10/25 08:58:56 08:59:01 0.025 0.0038 Delta +
04/10/25 09:14:48 09:14:53 0.028 0.0045 VT ROC
04/10/25 09:14:49 09:14:56 0.029 0.0043 Delta +
04/10/25 09:24:41 09:24:46 0.032 0.0043 VT ROC
04/10/25 09:24:39 09:24:51 0.033 0.0040 Delta +
04/10/25 12:00:06 12:00:08 -0.020 -0.0038 VT ROC
04/10/25 16:00:05 16:00:09 -0.026 -0.0050 VT ROC
04/10/25 16:00:05 16:00:11 -0.026 -0.0043 Delta -
04/10/25 18:14:37 18:14:43 0.031 0.0039 VT ROC
04/10/25 18:14:36 18:14:46 0.032 0.0039 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/11/25 04:00:05 04:00:09 -0.031 -0.0058 VT ROC
04/11/25 04:00:05 04:00:12 -0.031 -0.0051 Delta -
04/11/25 08:54:58 08:55:01 0.022 0.0040 VT ROC
04/11/25 09:00:48 09:00:49 0.022 0.0035 VT ROC
04/11/25 09:59:48 09:59:49 0.028 0.0036 VT ROC
04/11/25 09:59:45 09:59:53 0.029 0.0039 Delta +
04/11/25 10:00:06 10:00:09 -0.024 -0.0043 VT ROC
04/11/25 10:00:07 10:00:29 -0.027 -0.0040 Delta -
04/11/25 15:00:05 15:00:08 -0.023 -0.0037 VT ROC
04/11/25 15:22:29 15:22:34 0.032 0.0043 VT ROC
04/11/25 15:22:28 15:22:40 0.033 0.0039 Delta +
04/11/25 17:00:05 17:00:07 -0.020 -0.0035 VT ROC


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/12/25 02:00:04 02:00:08 -0.032 -0.0045 VT ROC
04/12/25 01:59:59 02:00:10 -0.034 -0.0040 Delta -
04/12/25 03:28:49 03:28:53 0.029 0.0041 VT ROC
04/12/25 03:28:48 03:28:58 0.029 0.0039 Delta +
04/12/25 04:00:05 04:00:08 -0.021 -0.0048 VT ROC
04/12/25 04:04:31 04:04:33 0.024 0.0040 VT ROC
04/12/25 04:04:32 04:04:38 0.026 0.0035 Delta +
04/12/25 06:15:06 06:15:07 -0.023 -0.0035 VT ROC
04/12/25 08:00:06 08:00:08 -0.021 -0.0042 VT ROC
04/12/25 08:55:41 08:55:46 0.030 0.0045 VT ROC
04/12/25 08:55:41 08:55:50 0.031 0.0043 Delta +
04/12/25 09:30:06 09:30:08 -0.022 -0.0037 VT ROC
04/12/25 12:01:39 12:01:42 0.026 0.0037 VT ROC
04/12/25 13:14:03 13:14:08 -0.030 -0.0059 VT ROC
04/12/25 13:14:04 13:14:10 -0.030 -0.0052 Delta -
04/12/25 16:00:04 16:00:09 -0.037 -0.0059 VT ROC
04/12/25 16:00:01 16:00:12 -0.038 -0.0051 Delta -
04/12/25 19:01:07 19:01:14 0.033 0.0041 VT ROC
04/12/25 19:01:07 19:01:17 0.034 0.0040 Delta +
04/12/25 20:00:06 20:00:08 -0.023 -0.0039 VT ROC
04/12/25 21:05:14 21:05:17 0.025 0.0038 VT ROC
04/12/25 21:05:14 21:05:25 0.030 0.0038 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/13/25 05:00:05 05:00:08 -0.021 -0.0045 VT ROC
04/13/25 07:11:00 07:11:06 -0.026 -0.0035 Delta -
04/13/25 07:15:10 07:15:17 0.034 0.0041 VT ROC
04/13/25 07:15:09 07:15:19 0.035 0.0038 Delta +
04/13/25 07:58:09 07:58:13 0.030 0.0039 VT ROC
04/13/25 07:58:06 07:58:16 0.031 0.0037 Delta +
04/13/25 08:00:06 08:00:08 -0.023 -0.0040 VT ROC
04/13/25 08:00:07 08:00:12 -0.024 -0.0035 Delta -
04/13/25 08:55:33 08:55:37 0.029 0.0042 VT ROC
04/13/25 08:55:31 08:55:39 0.029 0.0039 Delta +
04/13/25 09:10:33 09:10:38 0.034 0.0049 VT ROC
04/13/25 09:10:33 09:10:44 0.036 0.0046 Delta +
04/13/25 11:00:05 11:00:08 -0.025 -0.0040 VT ROC
04/13/25 11:00:05 11:00:12 -0.026 -0.0037 Delta -
04/13/25 17:53:07 17:53:11 -0.027 -0.0038 VT ROC
04/13/25 17:53:08 17:53:15 -0.029 -0.0037 Delta -
04/13/25 20:00:05 20:00:09 -0.031 -0.0049 VT ROC
04/13/25 20:00:02 20:00:13 -0.032 -0.0044 Delta -
04/13/25 20:32:07 20:32:10 -0.024 -0.0050 VT ROC
04/13/25 20:32:08 20:32:12 -0.025 -0.0039 Delta -
04/13/25 22:05:15 22:05:16 0.030 0.0035 VT ROC
04/13/25 22:05:17 22:05:19 0.032 0.0037 VT ROC
04/13/25 22:05:13 22:05:23 0.034 0.0038 Delta +
04/13/25 22:14:06 22:14:08 0.026 0.0036 VT ROC
04/13/25 22:19:00 22:19:12 59.936   Under 59.940
04/13/25 23:00:02 23:00:19 59.938   Under 59.940
04/13/25 23:03:02 23:03:36 59.937   Under 59.940


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/14/25 04:00:05 04:00:09 -0.029 -0.0059 VT ROC
04/14/25 04:00:04 04:00:10 -0.029 -0.0048 Delta -
04/14/25 06:00:06 06:00:13 -0.027 -0.0037 Delta -
04/14/25 09:10:50 09:10:51 0.027 0.0037 VT ROC
04/14/25 09:10:46 09:10:55 0.028 0.0035 Delta +
04/14/25 12:15:26 12:15:28 0.026 0.0038 VT ROC
04/14/25 14:00:05 14:00:09 -0.025 -0.0043 VT ROC
04/14/25 14:00:04 14:00:14 -0.026 -0.0039 Delta -
04/14/25 18:57:24 18:57:27 -0.023 -0.0051 VT ROC
04/14/25 18:57:26 18:57:30 -0.025 -0.0043 Delta -
04/14/25 19:54:22 19:54:31 0.027 0.0037 Delta +
04/14/25 19:59:15 19:59:21 0.034 0.0051 VT ROC
04/14/25 19:59:15 19:59:26 0.036 0.0049 Delta +
04/14/25 21:44:49 21:44:51 0.029 0.0038 VT ROC
04/14/25 21:44:46 21:44:54 0.030 0.0037 Delta +
04/14/25 23:00:06 23:00:09 -0.020 -0.0044 VT ROC


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/15/25 09:59:55 09:59:56 0.021 0.0040 VT ROC
04/15/25 10:00:06 10:00:09 -0.023 -0.0041 VT ROC
04/15/25 10:00:08 10:00:25 -0.029 -0.0039 Delta -
04/15/25 12:00:08 12:00:09 -0.022 -0.0038 VT ROC
04/15/25 12:11:38 12:11:44 0.032 0.0038 VT ROC
04/15/25 12:11:35 12:11:46 0.033 0.0037 Delta +
04/15/25 16:35:09 16:35:12 0.021 0.0037 VT ROC
04/15/25 16:35:10 16:35:22 0.033 0.0037 Delta +
04/15/25 16:45:28 16:45:32 -0.035 -0.0047 VT ROC
04/15/25 16:45:24 16:45:37 -0.037 -0.0042 Delta -
04/15/25 17:00:06 17:00:09 -0.025 -0.0047 VT ROC
04/15/25 17:00:05 17:00:11 -0.025 -0.0039 Delta -
04/15/25 17:43:48 17:43:51 0.032 0.0043 VT ROC
04/15/25 17:43:44 17:43:55 0.033 0.0040 Delta +
04/15/25 19:22:20 19:22:24 0.030 0.0042 VT ROC
04/15/25 19:22:17 19:22:27 0.032 0.0038 Delta +
04/15/25 20:47:19 20:47:30 0.031 0.0037 Delta +
04/15/25 22:58:23 22:58:27 -0.030 -0.0047 VT ROC
04/15/25 22:58:23 22:58:34 -0.033 -0.0041 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/16/25 04:02:40 04:02:45 -0.031 -0.0049 VT ROC
04/16/25 04:02:40 04:02:49 -0.033 -0.0049 Delta -
04/16/25 05:00:06 05:00:11 -0.032 -0.0054 VT ROC
04/16/25 05:00:06 05:00:16 -0.033 -0.0050 Delta -
04/16/25 05:10:42 05:10:44 -0.026 -0.0037 VT ROC
04/16/25 05:10:42 05:10:56 -0.033 -0.0037 Delta -
04/16/25 06:00:06 06:00:09 -0.026 -0.0042 VT ROC
04/16/25 06:00:05 06:00:11 -0.026 -0.0037 Delta -
04/16/25 07:45:09 07:45:13 0.030 0.0048 VT ROC
04/16/25 07:45:09 07:45:21 0.034 0.0046 Delta +
04/16/25 08:31:49 08:31:53 0.029 0.0046 VT ROC
04/16/25 08:31:48 08:31:56 0.030 0.0044 Delta +
04/16/25 09:27:22 09:27:23 0.032 0.0038 VT ROC
04/16/25 09:27:24 09:27:27 0.032 0.0039 VT ROC
04/16/25 09:27:19 09:27:30 0.034 0.0037 Delta +
04/16/25 16:56:23 16:56:25 0.031 0.0037 VT ROC
04/16/25 16:56:19 16:56:28 0.032 0.0037 Delta +
04/16/25 17:33:15 17:33:17 0.026 0.0039 VT ROC
04/16/25 17:33:13 17:33:19 0.027 0.0036 Delta +
04/16/25 21:09:14 21:09:16 0.021 0.0037 VT ROC
04/16/25 21:09:15 21:09:20 0.027 0.0036 Delta +
04/16/25 22:21:58 22:22:00 0.030 0.0050 VT ROC
04/16/25 22:21:56 22:22:05 0.031 0.0041 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/17/25 04:00:05 04:00:09 -0.030 -0.0055 VT ROC
04/17/25 04:00:04 04:00:13 -0.030 -0.0048 Delta -
04/17/25 05:00:05 05:00:09 -0.025 -0.0046 VT ROC
04/17/25 05:00:05 05:00:11 -0.026 -0.0040 Delta -
04/17/25 05:09:54 05:09:58 0.030 0.0043 VT ROC
04/17/25 05:09:51 05:10:01 0.031 0.0041 Delta +
04/17/25 09:15:09 09:15:11 0.025 0.0037 VT ROC
04/17/25 09:20:01 09:20:05 0.029 0.0043 VT ROC
04/17/25 09:20:00 09:20:09 0.029 0.0039 Delta +
04/17/25 10:00:06 10:00:09 -0.022 -0.0040 VT ROC
04/17/25 12:00:06 12:00:09 -0.021 -0.0040 VT ROC
04/17/25 20:26:07 20:26:13 0.038 0.0059 VT ROC
04/17/25 20:26:07 20:26:17 0.039 0.0055 Delta +
04/17/25 22:00:23 22:00:25 0.031 0.0038 VT ROC
04/17/25 22:00:19 22:00:35 0.035 0.0037 Delta +
04/17/25 22:20:06 22:20:09 -0.026 -0.0038 VT ROC
04/17/25 22:20:04 22:20:12 -0.027 -0.0036 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/18/25 00:40:56 00:41:00 -0.024 -0.0038 Delta -
04/18/25 03:45:27 03:45:30 -0.028 -0.0038 VT ROC
04/18/25 03:45:26 03:45:35 -0.030 -0.0035 Delta -
04/18/25 04:00:05 04:00:11 -0.036 -0.0058 VT ROC
04/18/25 04:00:04 04:00:15 -0.037 -0.0051 Delta -
04/18/25 05:00:06 05:00:09 -0.024 -0.0047 VT ROC
04/18/25 08:20:04 08:20:11 0.037 0.0050 VT ROC
04/18/25 08:20:02 08:20:13 0.039 0.0047 Delta +
04/18/25 09:47:24 09:47:28 0.024 0.0036 VT ROC
04/18/25 09:47:24 09:47:32 0.028 0.0036 Delta +
04/18/25 11:00:06 11:00:10 -0.029 -0.0048 VT ROC
04/18/25 11:00:05 11:00:15 -0.030 -0.0044 Delta -
04/18/25 11:16:54 11:17:06 0.030 0.0036 Delta +
04/18/25 12:00:06 12:00:10 -0.028 -0.0049 VT ROC
04/18/25 12:00:05 12:00:14 -0.029 -0.0041 Delta -
04/18/25 12:27:41 12:27:45 0.030 0.0043 VT ROC
04/18/25 12:27:41 12:27:51 0.031 0.0040 Delta +
04/18/25 13:00:05 13:00:09 -0.028 -0.0044 VT ROC
04/18/25 13:00:05 13:00:15 -0.030 -0.0043 Delta -
04/18/25 15:00:06 15:00:09 -0.027 -0.0044 VT ROC
04/18/25 15:00:05 15:00:14 -0.030 -0.0038 Delta -
04/18/25 17:56:30 17:56:32 0.026 0.0040 VT ROC
04/18/25 17:56:28 17:56:36 0.027 0.0037 Delta +
04/18/25 23:00:06 23:00:09 -0.023 -0.0044 VT ROC
04/18/25 23:00:07 23:00:11 -0.024 -0.0039 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/19/25 05:00:06 05:00:08 -0.025 -0.0044 VT ROC
04/19/25 05:00:06 05:00:12 -0.026 -0.0036 Delta -
04/19/25 08:33:51 08:34:05 0.030 0.0035 Delta +
04/19/25 12:00:19 12:00:24 -0.036 -0.0060 VT ROC
04/19/25 12:00:18 12:00:29 -0.037 -0.0060 Delta -
04/19/25 12:30:07 12:30:09 -0.022 -0.0040 VT ROC
04/19/25 12:45:07 12:45:09 -0.026 -0.0037 VT ROC
04/19/25 12:45:06 12:45:16 -0.029 -0.0036 Delta -
04/19/25 12:52:26 12:52:28 0.027 0.0045 VT ROC
04/19/25 12:52:18 12:52:29 0.030 0.0037 Delta +
04/19/25 14:00:05 14:00:10 -0.030 -0.0045 VT ROC
04/19/25 14:00:04 14:00:13 -0.031 -0.0043 Delta -
04/19/25 17:33:05 17:33:11 -0.034 -0.0041 VT ROC
04/19/25 17:33:15 17:33:18 -0.034 -0.0036 VT ROC
04/19/25 17:33:03 17:33:23 -0.037 -0.0041 Delta -
04/19/25 18:17:12 18:17:13 0.023 0.0035 VT ROC
04/19/25 18:17:12 18:17:20 0.029 0.0035 Delta +
04/19/25 19:03:11 19:03:18 0.038 0.0057 VT ROC
04/19/25 19:03:10 19:03:23 0.040 0.0052 Delta +
04/19/25 19:10:43 19:10:44 0.028 0.0038 VT ROC
04/19/25 19:10:45 19:10:47 0.030 0.0036 VT ROC
04/19/25 19:10:40 19:10:52 0.032 0.0040 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/20/25 01:00:06 01:00:09 -0.028 -0.0043 VT ROC
04/20/25 01:00:02 01:00:11 -0.030 -0.0037 Delta -
04/20/25 04:00:05 04:00:09 -0.024 -0.0042 Delta -
04/20/25 04:00:05 04:00:09 -0.024 -0.0052 VT ROC
04/20/25 05:45:05 05:45:09 -0.030 -0.0052 VT ROC
04/20/25 05:45:04 05:45:12 -0.031 -0.0046 Delta -
04/20/25 06:45:06 06:45:08 -0.024 -0.0037 VT ROC
04/20/25 06:45:05 06:45:09 -0.024 -0.0036 Delta -
04/20/25 07:00:06 07:00:10 -0.028 -0.0043 VT ROC
04/20/25 07:00:06 07:00:16 -0.030 -0.0040 Delta -
04/20/25 09:00:06 09:00:10 -0.025 -0.0046 VT ROC
04/20/25 09:00:07 09:00:14 -0.026 -0.0042 Delta -
04/20/25 10:00:06 10:00:09 -0.025 -0.0041 VT ROC
04/20/25 10:00:07 10:00:13 -0.026 -0.0037 Delta -
04/20/25 10:56:47 10:56:49 0.024 0.0038 VT ROC
04/20/25 10:56:47 10:56:54 0.026 0.0039 Delta +
04/20/25 11:00:08 11:00:09 -0.023 -0.0039 VT ROC
04/20/25 11:00:08 11:00:15 -0.027 -0.0038 Delta -
04/20/25 14:00:07 14:00:09 -0.022 -0.0038 VT ROC
04/20/25 19:20:23 19:20:25 0.023 0.0037 VT ROC
04/20/25 19:20:23 19:20:29 0.025 0.0037 Delta +
04/20/25 20:30:06 20:30:13 -0.026 -0.0036 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/21/25 04:00:06 04:00:09 -0.022 -0.0045 VT ROC
04/21/25 05:00:05 05:00:09 -0.028 -0.0047 VT ROC
04/21/25 05:00:04 05:00:11 -0.028 -0.0041 Delta -
04/21/25 05:45:06 05:45:08 -0.026 -0.0036 VT ROC
04/21/25 07:00:07 07:00:10 -0.023 -0.0042 VT ROC
04/21/25 07:00:08 07:00:12 -0.024 -0.0036 Delta -
04/21/25 09:00:07 09:00:09 -0.023 -0.0040 VT ROC
04/21/25 09:00:08 09:00:16 -0.026 -0.0036 Delta -
04/21/25 10:00:05 10:00:09 -0.032 -0.0062 VT ROC
04/21/25 10:00:04 10:00:10 -0.032 -0.0055 Delta -
04/21/25 10:26:45 10:26:52 0.042 0.0060 VT ROC
04/21/25 10:26:43 10:26:55 0.043 0.0056 Delta +
04/21/25 10:35:11 10:35:15 0.031 0.0052 VT ROC
04/21/25 10:35:11 10:35:20 0.032 0.0046 Delta +
04/21/25 11:36:16 11:36:21 0.036 0.0049 VT ROC
04/21/25 11:36:13 11:36:25 0.037 0.0046 Delta +
04/21/25 12:08:54 12:08:58 0.030 0.0041 VT ROC
04/21/25 12:08:51 12:09:01 0.031 0.0039 Delta +
04/21/25 12:41:37 12:41:43 0.032 0.0042 VT ROC
04/21/25 12:41:34 12:41:46 0.034 0.0039 Delta +
04/21/25 18:57:52 18:58:01 0.028 0.0035 Delta +
04/21/25 23:00:05 23:00:10 -0.032 -0.0058 VT ROC
04/21/25 23:00:05 23:00:16 -0.033 -0.0050 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/22/25 04:00:05 04:00:09 -0.023 -0.0051 VT ROC
04/22/25 05:00:06 05:00:09 -0.022 -0.0041 VT ROC
04/22/25 07:00:06 07:00:09 -0.021 -0.0042 VT ROC
04/22/25 08:59:58 08:59:59 0.020 0.0036 VT ROC
04/22/25 08:59:59 09:00:02 0.025 0.0037 Delta +
04/22/25 09:26:01 09:26:02 0.025 0.0038 VT ROC
04/22/25 09:26:00 09:26:05 0.025 0.0036 Delta +
04/22/25 10:00:07 10:00:10 -0.024 -0.0042 VT ROC
04/22/25 10:00:08 10:00:14 -0.028 -0.0039 Delta -
04/22/25 11:00:06 11:00:09 -0.021 -0.0040 VT ROC
04/22/25 11:00:08 11:00:14 -0.026 -0.0039 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/23/25 05:17:01 05:17:02 0.030 0.0036 VT ROC
04/23/25 05:27:16 05:27:20 0.031 0.0038 VT ROC
04/23/25 05:27:14 05:27:26 0.033 0.0037 Delta +
04/23/25 08:59:23 08:59:28 0.031 0.0048 VT ROC
04/23/25 08:59:22 08:59:32 0.032 0.0044 Delta +
04/23/25 09:00:15 09:00:21 0.035 0.0062 VT ROC
04/23/25 09:00:15 09:00:24 0.036 0.0055 Delta +
04/23/25 09:20:17 09:20:21 0.031 0.0040 VT ROC
04/23/25 09:20:16 09:20:26 0.032 0.0037 Delta +
04/23/25 11:00:07 11:00:10 -0.026 -0.0044 VT ROC
04/23/25 11:00:06 11:00:13 -0.028 -0.0040 Delta -
04/23/25 12:00:07 12:00:09 -0.024 -0.0041 VT ROC
04/23/25 12:00:07 12:00:13 -0.026 -0.0037 Delta -
04/23/25 14:48:05 14:48:08 -0.028 -0.0038 VT ROC
04/23/25 14:48:03 14:48:14 -0.030 -0.0036 Delta -
04/23/25 16:30:19 16:30:26 0.035 0.0053 VT ROC
04/23/25 16:30:19 16:30:30 0.036 0.0048 Delta +
04/23/25 19:13:38 19:13:43 0.034 0.0050 VT ROC
04/23/25 19:13:38 19:13:49 0.036 0.0047 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/24/25 02:45:15 02:45:22 -0.046 -0.0083 VT ROC
04/24/25 02:45:13 02:45:26 -0.047 -0.0072 Delta -
04/24/25 04:00:05 04:00:10 -0.033 -0.0059 VT ROC
04/24/25 04:00:04 04:00:14 -0.033 -0.0053 Delta -
04/24/25 04:48:03 04:48:12 -0.064 -0.0114 VT ROC
04/24/25 04:48:02 04:48:16 -0.066 -0.0103 Delta -
04/24/25 08:30:07 08:30:09 -0.023 -0.0035 VT ROC
04/24/25 09:03:42 09:03:47 0.033 0.0045 VT ROC
04/24/25 09:03:41 09:03:52 0.035 0.0042 Delta +
04/24/25 10:00:06 10:00:10 -0.028 -0.0046 VT ROC
04/24/25 10:00:06 10:00:15 -0.030 -0.0043 Delta -
04/24/25 12:51:42 12:51:48 -0.032 -0.0060 VT ROC
04/24/25 12:51:42 12:51:51 -0.033 -0.0050 Delta -
04/24/25 15:05:37 15:05:44 0.037 0.0058 VT ROC
04/24/25 15:05:37 15:05:48 0.039 0.0055 Delta +
04/24/25 17:40:30 17:40:32 0.028 0.0036 VT ROC
04/24/25 17:40:27 17:40:35 0.029 0.0036 Delta +
04/24/25 18:35:05 18:35:09 -0.024 -0.0040 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/25/25 03:20:15 03:20:17 -0.027 -0.0036 VT ROC
04/25/25 03:24:43 03:24:48 -0.032 -0.0056 VT ROC
04/25/25 03:24:43 03:24:54 -0.035 -0.0050 Delta -
04/25/25 04:00:05 04:00:09 -0.025 -0.0049 VT ROC
04/25/25 04:00:05 04:00:09 -0.026 -0.0041 Delta -
04/25/25 05:00:06 05:00:09 -0.024 -0.0048 VT ROC
04/25/25 05:00:08 05:00:14 -0.025 -0.0042 Delta -
04/25/25 05:37:13 05:37:25 0.032 0.0035 Delta +
04/25/25 08:00:06 08:00:09 -0.028 -0.0047 VT ROC
04/25/25 08:00:04 08:00:12 -0.029 -0.0040 Delta -
04/25/25 20:31:50 20:31:52 0.029 0.0041 VT ROC
04/25/25 20:31:46 20:31:55 0.030 0.0036 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/26/25 04:00:05 04:00:08 -0.022 -0.0044 VT ROC
04/26/25 04:52:43 04:52:49 -0.036 -0.0045 VT ROC
04/26/25 04:52:41 04:52:53 -0.038 -0.0044 Delta -
04/26/25 07:11:11 07:11:18 0.035 0.0043 VT ROC
04/26/25 07:11:10 07:11:22 0.036 0.0041 Delta +
04/26/25 10:00:07 10:00:09 -0.025 -0.0041 VT ROC
04/26/25 10:00:07 10:00:14 -0.028 -0.0037 Delta -
04/26/25 11:00:38 11:00:40 0.024 0.0038 VT ROC
04/26/25 13:10:10 13:10:14 0.024 0.0035 Delta +
04/26/25 14:10:10 14:10:12 0.021 0.0041 VT ROC
04/26/25 14:10:12 14:10:18 0.026 0.0036 Delta +
04/26/25 16:00:06 16:00:09 -0.025 -0.0041 VT ROC
04/26/25 16:00:06 16:00:14 -0.027 -0.0036 Delta -
04/26/25 17:05:04 17:05:04 -0.024 -0.0037 VT ROC
04/26/25 17:05:04 17:05:14 -0.031 -0.0039 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/27/25 03:20:05 03:20:10 -0.031 -0.0045 VT ROC
04/27/25 03:20:04 03:20:12 -0.032 -0.0041 Delta -
04/27/25 04:00:05 04:00:10 -0.032 -0.0063 VT ROC
04/27/25 04:00:05 04:00:12 -0.032 -0.0055 Delta -
04/27/25 04:29:29 04:29:36 0.034 0.0048 VT ROC
04/27/25 04:29:29 04:29:40 0.035 0.0045 Delta +
04/27/25 05:20:07 05:20:11 -0.031 -0.0043 VT ROC
04/27/25 05:20:05 05:20:15 -0.032 -0.0040 Delta -
04/27/25 06:30:07 06:30:08 -0.021 -0.0035 VT ROC
04/27/25 08:49:27 08:49:31 -0.028 -0.0050 VT ROC
04/27/25 08:49:28 08:49:35 -0.029 -0.0049 Delta -
04/27/25 09:01:11 09:01:16 0.028 0.0046 VT ROC
04/27/25 09:01:13 09:01:21 0.031 0.0041 Delta +
04/27/25 12:01:04 12:01:08 -0.032 -0.0044 VT ROC
04/27/25 12:01:00 12:01:11 -0.033 -0.0040 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/28/25 02:37:28 02:37:30 0.025 0.0038 VT ROC
04/28/25 02:37:26 02:37:34 0.027 0.0035 Delta +
04/28/25 04:00:04 04:00:09 -0.036 -0.0063 VT ROC
04/28/25 04:00:03 04:00:12 -0.036 -0.0052 Delta -
04/28/25 04:56:19 04:56:23 0.031 0.0039 VT ROC
04/28/25 04:56:17 04:56:26 0.032 0.0040 Delta +
04/28/25 06:46:36 06:46:41 0.030 0.0044 VT ROC
04/28/25 06:46:35 06:46:44 0.030 0.0040 Delta +
04/28/25 07:01:21 07:01:24 0.026 0.0047 VT ROC
04/28/25 07:01:20 07:01:33 0.031 0.0040 Delta +
04/28/25 08:05:59 08:06:11 0.030 0.0039 Delta +
04/28/25 09:07:00 09:07:03 0.030 0.0038 VT ROC
04/28/25 09:06:57 09:07:09 0.032 0.0037 Delta +
04/28/25 10:03:46 10:03:50 0.029 0.0038 VT ROC
04/28/25 10:03:44 10:03:53 0.030 0.0038 Delta +
04/28/25 12:00:06 12:00:10 -0.030 -0.0044 VT ROC
04/28/25 12:00:04 12:00:13 -0.031 -0.0040 Delta -
04/28/25 16:41:22 16:41:24 0.027 0.0036 VT ROC
04/28/25 16:41:19 16:41:29 0.028 0.0035 Delta +
04/28/25 18:00:06 18:00:09 -0.023 -0.0038 VT ROC
04/28/25 18:00:08 18:00:12 -0.024 -0.0037 Delta -
04/28/25 20:58:39 20:58:41 -0.022 -0.0039 VT ROC


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/29/25 02:00:06 02:00:09 -0.028 -0.0043 VT ROC
04/29/25 02:00:04 02:00:11 -0.029 -0.0040 Delta -
04/29/25 04:00:05 04:00:09 -0.025 -0.0052 VT ROC
04/29/25 04:00:06 04:00:10 -0.025 -0.0044 Delta -
04/29/25 04:06:44 04:06:51 -0.036 -0.0045 VT ROC
04/29/25 04:06:42 04:06:54 -0.037 -0.0043 Delta -
04/29/25 05:00:05 05:00:09 -0.027 -0.0046 VT ROC
04/29/25 05:00:06 05:00:12 -0.027 -0.0043 Delta -
04/29/25 06:27:31 06:27:36 0.029 0.0042 VT ROC
04/29/25 06:27:30 06:27:39 0.031 0.0041 Delta +
04/29/25 09:02:44 09:02:47 0.022 0.0040 VT ROC
04/29/25 09:02:45 09:02:49 0.024 0.0037 Delta +
04/29/25 13:20:05 13:20:09 -0.034 -0.0042 VT ROC
04/29/25 13:19:57 13:20:12 -0.036 -0.0039 Delta -
04/29/25 14:00:07 14:00:13 -0.029 -0.0036 Delta -
04/29/25 14:09:58 14:10:06 0.028 0.0037 Delta +
04/29/25 15:41:22 15:41:24 0.027 0.0036 VT ROC
04/29/25 17:31:15 17:31:18 0.027 0.0043 VT ROC
04/29/25 17:31:14 17:31:23 0.028 0.0039 Delta +
04/29/25 18:34:06 18:34:09 -0.026 -0.0048 VT ROC
04/29/25 18:34:06 18:34:13 -0.027 -0.0041 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
04/30/25 01:00:06 01:00:08 -0.020 -0.0038 VT ROC
04/30/25 03:00:05 03:00:08 -0.025 -0.0041 VT ROC
04/30/25 03:00:05 03:00:15 -0.026 -0.0036 Delta -
04/30/25 04:00:05 04:00:10 -0.035 -0.0066 VT ROC
04/30/25 04:00:04 04:00:12 -0.035 -0.0056 Delta -
04/30/25 05:00:07 05:00:11 -0.028 -0.0048 VT ROC
04/30/25 05:00:07 05:00:15 -0.029 -0.0043 Delta -
04/30/25 05:43:20 05:43:22 0.020 0.0036 VT ROC
04/30/25 09:59:17 09:59:21 0.030 0.0051 VT ROC
04/30/25 09:59:17 09:59:25 0.031 0.0047 Delta +
04/30/25 10:24:56 10:25:03 0.026 0.0035 Delta +


PSFM Hardware and software by Robert M. Orndorff
Generated at 10:25:10 30-Apr-2025 UTC.
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