Authors: Nada AlHaddad (SSC, UNH)

In spite of the wealth of solar and heliospheric data and spacecraft, there has not been a single dedicated multi-spacecraft mission to measure solar transients. Great advancements in understanding Coronal Mass Ejections, starting with their very discovery has been made through multi-spacecraft measurements, yet, and since the most impactful work of (Burlaga 1981), the solar and heliospheric community has not been able to acquire a dedicated multi-spacecraft mission that would allow for proper study of solar transients. Several impactful studies of  multi-spacecraft measurements have relied on the serendipitous conjunction and alignment of various solar and planetary missions. This work discusses different techniques developed to extract information from existing multi-spacecraft measurements, as well as techniques that have been developed and tested using numerical simulations and can only be used with dedicated missions of precise formation.