Eastern Interconnection Frequency Events

Generated by the PSFM-1 Frequency Recorder

(updated as events are recorded.)
All times are UTC.
Generated at 00:00:11 04-Jul-2025 UTC.

Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
07/01/25 04:00:05 04:00:09 -0.026 -0.0051 VT ROC
07/01/25 04:00:06 04:00:11 -0.026 -0.0047 Delta -
07/01/25 14:16:50 14:16:59 -0.058 -0.0097 VT ROC
07/01/25 14:16:49 14:17:03 -0.060 -0.0085 Delta -
07/01/25 15:02:20 15:02:24 -0.025 -0.0058 VT ROC
07/01/25 15:02:22 15:02:29 -0.027 -0.0045 Delta -


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
07/02/25 04:00:06 04:00:09 -0.022 -0.0040 VT ROC
07/02/25 11:00:07 11:00:15 -0.027 -0.0035 Delta -
07/02/25 11:01:58 11:02:02 0.024 0.0036 Delta +
07/02/25 14:30:43 14:30:51 0.028 0.0036 Delta +


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
07/03/25 13:01:46 13:01:47 0.021 0.0036 VT ROC


Date Pickup Dropout Delta (Hz) Slope(Hz/sec) Type
07/04/25 00:00:05 00:00:09 -0.027 -0.0038 VT ROC


PSFM Hardware and software by Robert M. Orndorff
Generated at 00:00:11 04-Jul-2025 UTC.
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