  Predicting the impacts of coronal mass ejections (CMEs) is a major focus of
current space weather forecasting efforts. Typically, CME properties are
reconstructed from stereoscopic coronal images and then used to forward model a
CME's interplanetary evolution. Knowing the uncertainty in the coronal
reconstructions is then a critical factor in determining the uncertainty of any
predictions. A growing number of catalogs of coronal CME reconstructions exist,
but no extensive comparison between these catalogs has yet been performed. Here
we develop a Living List of Attributes Measured in Any Coronal Reconstruction
(LLAMACoRe), an online collection of individual catalogs, which we intend to
continually update. In this first version, we use results from 24 different
catalogs with 3D reconstructions using STEREO observations between 2007--2014.
We have collated the individual catalogs, determining which reconstructions
correspond to the same events. LLAMACoRe contains 2954 reconstructions for 1862
CMEs. Of these, 511 CMEs contain multiple reconstructions from different
catalogs. Using the best-constrained values for each CME, we find that the
combined catalog reproduces the generally known solar cycle trends. We
determine the typical difference we would expect between two independent
reconstructions of the same event and find values of 4.0 deg in the latitude,
8.0 deg in the longitude, 24.0 deg in the tilt, 9.3 deg in the angular width,
0.1 in the shape parameter kappa, 115 km/s in the velocity, and 2.5e15 g in the
mass. These remain the most probable values over the solar cycle, though we
find more extreme outliers in the deviation toward solar maximum.
