SERPENTINE CME catalogue
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2024-09-17, 2024-09-17
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Description
This catalogue contains the information of coronal mass ejections (CMEs) related to multi-spacecraft solar energetic particle (SEP) events detected during solar cycle 25. It has been created within the European Union’s Horizon 2020 project SERPENTINE (Solar energetic particle analysis platform for the inner heliosphere). The multi-spacecraft SEP events are documented in the catalogue build during SERPENTINE project and described in detail in Dresing et al., doi:10.1051/0004-6361/202449831, 2024.
The catalogue lists the occurrence of CMEs and some of their key parameters as extracted from the SOHO LASCO CME catalogue and STEREO automated SEEDS catalogue.
For all events we have listed the information on the CME occurrence time, kinematics, size and location. We have included only CMEs with angular width larger than 60 degrees (at least from one of the observation location). In addition, for those events that were clear enough in white-light coronagraph images and when the LASCO and STEREO-A spacecraft were far enough from each other (> 30 degrees) were fitted with Graduated Cylindrical Shell (GCS) approach (Thernisien, Vourlidas and Howard, 2009; Thernisien, 2011) to obtained 3D information on the CME kinematics, location and geometrics.
The parameters extracted from the SOHO/LASCO and STEREO/SEEDS CME catalogues include
Plane of the sky speed [km/s]
Acceleration [m/s^2]
Angular width [degrees]* (for halo CMEs, the angular width is 360 degrees)
Central position angle [degrees] (the position angle is measured from solar north clockwise)
The GCS parameters include
time of the fit [UTC]
height of the leading edge [solar radii]
half-angular width [degrees]
aspect ratio
propagation longitude [degrees]
propagation latitude [degrees]
tilt angle with respect to the solar equator [degrees]
The GCS fitting is performed for multiple time steps.