A Catalog of Interplanetary Coronal Mass Ejections Observed by Juno between 1 and 5.4 au

Abstract We use magnetic field measurements by the Juno spacecraft to catalog and investigate interplanetary coronal mass ejections (ICMEs) beyond 1 au. During its cruise phase, spent about 5 yr in solar wind between 2011 September 2016 June, providing of (IMF) 5.4 therefore presents most recent opportunity for a statistical analysis ICME properties au since Ulysses mission (1990–2009). Our includes 80 such events, 32 which contain associated flux-rope-like structures. find that dependency mean strength flux ropes decreases with heliocentric distance as r ?1.24±0.43 au, good agreement previous relationships calculated using catalogs at Ulysses. combine HELCATS create data set ICMEs covering 0.3–5.4 Using linear regression model fit combined on double-logarithmic plot, we there is clear difference global expansion rates observed shorter distances those farther out The cataloged present basis future multispacecraft studies evolution inner heliosphere, beyond.