Updated Model of the Solar Energetic Proton Environment in Space Piers Jiggens, Daniel Heynderickx, Ingmar Sandberg, Pete Truscott, Osku Raukunen and Rami Vainio J. Space Weather Space Clim., 8 (2018) A31 Published online: 29 May 2018 DOI: 10.1051/swsc/2018010