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Timeline for the magnetic disturbance of 13–14 March 1989. (top) The estimated interplanetary conditions. The black arrows show the storm sudden commencement times indicative of the arrival of the interplanetary coronal mass ejection shocks. (middle) The variation in geomagnetic activity. (bottom) Magnetic latitude of the auroral zone equatorward boundary. Black diamonds show the times and latitudes of power system effects.

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Timeline for the magnetic disturbance of 13–14 March 1989. (top) The estimated interplanetary conditions. The black arrows show the storm sudden commencement times indicative of the arrival of the interplanetary coronal mass ejection shocks. (middle) The variation in geomagnetic activity. (bottom) Magnetic latitude of the auroral zone equatorward boundary. Black diamonds show the times and latitudes of power system effects.
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AkaSci 🛰️ (akasci@fosstodon.org)'s status on Saturday, 11-May-2024 11:51:03 JST AkaSci 🛰️
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The largest magnetic storm of the last century occurred on 13 March 1989. Its effects included -
- A 9-hour outage of the Hydro-Québec power system.
- Significant interference to the U.S. power grid
- Several satellites lost control for several hours including GOES and NASA's TDRS-1.
- Orbit changes for 2500+ satellites
- Space Shuttle Discovery suffered a malfunction in a sensor on a hydrogen tank.
https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2019SW002278
https://en.wikipedia.org/wiki/March_1989_geomagnetic_storm
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