Eastern Interconnection Frequency Events
(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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