This tool contains the various data of those sunspot regions that produced large flares (class M and X) between 1996 and 2014. The presentation uses the data of SOHO/MDI Debrecen Data (SDD) and SDO/HMI Debrecen Data (HMIDD) sunspot catalogue, the SOHO/MDI, SOHO/EIT, SDO/HMI, SDO/AIA images, GOES and RHESSI solar flare data bases. The evolution of sunspot groups and positions of solar flares are animated to track the pre-flare dynamics of active regions with ~1-1.5 hour time resolution.
Online queries for tilt-angle data
Online queries for tilt-angles are available for Debrecen Photoheliographic Data (DPD) and SOHO/MDI-Debrecen Data (SDD) showing the available selection criteria. The selected data can be downloaded as a text file.
Online queries for position and area data of sunspots and sunspot groups
Online query is availabale to apply various selection criteria for Debrecen Photoheliographic Data (DPD) and Greenwich Photoheliographic Data (GPR) as well as for SOHO/MDI-Debrecen Data (SDD) showing the available selection criteria. The selected data can be downloaded as a text file.