| Name: | Yoshita Baruah |
| Affiliation: | Indian Institute of Science Education and Research, Kolkata |
| Conference ID : | ASI2023_158 |
| Title : | Consequences of Geomagnetic Storms on Satellite Liefetimes at Low Earth Orbits |
| Authors : | Yoshita Baruah, Dibyendu Nandy |
| Mode of Presentation: | Poster |
| Abstract Category : | Sun and the Solar System |
| Abstract : | Coronal mass ejections (CMEs) and high-speed solar streams (HSS) are important drivers of space weather. Fast CMEs and HSS having strong southward directed magnetic fields with respect to the Earth’s magnetic field can generate geomagnetic storms when they impact Earth. During such a storm most of the energy of interaction is dissipated into the Earth’s atmosphere in the form of Joule heating. This leads to an upwelling of the thermosphere to altitudes where Low Earth Orbit (LEO) satellites are situated. This process increases the drag on satellites stationed at LEO. This has serious implications on their orbital lifetimes. By identifying Earth directed CMEs near the Sun and detecting their near-Earth counterparts in in-situ data at L1, here we demonstrate how to empirically determine the orbital decay of LEO satellites due to geomagnetic storms caused by the associated CMEs.
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