The data presented here are unsed in the paper: 'Ozone decrease observed in the upper atmosphere following theMay 11th 2024 Mother’s day solar storm' OMNI file: omni_2024-01-01_2024-06-01.lst --> contains geomagnetic indices from the omni data base. MLS file:mls_l2_v5_2024-01-01_2024-06-30.nc --> contains the ozone data from the MLS/AURA stored in a netcdf file that can be easily read with the xarray python library. GOES file:goes_2024-05-01_2024-06-30.nc --> contains the integral proton fluxes (in [(s cm²)^-1])observed by GOES stored, in a netcdf file. MEPED file: meped_T0_2024-05-01_2024-06-30.nc --> contains the electron integral fluxes (in [(s cm²)^-1]) from MEPED, stored in a netcdf file. MEPED/POES data are available at -> https://satdat.ngdc.noaa.gov/sem/poes/dataGOES data can be found at -> https://www.swpc.noaa.gov/products/goes-proton-fluxOMNI data are accessible at -> https://omniweb.gsfc.nasa.gov/html/ow_data.htmlMLS/Aura data can be accessed at -> https://disc.gsfc.nasa.gov/dataset