https://www.youtube.com/watch?v=BjCUXITbGLg
This guide explains:
Steps required to Level up Elvira Martuuk and get information on Engineer called Marco Qwent.
Explains a method of gaining Rep with Sirius Cooperation and getting allied with them, giving us a Sirius System Permit.
Once Allied with Sirius Cooperation we receive an Engineer Invitation Contract.
Finding Modular Terminals for Marco Qwent.
Steps required to Level up Marco Qwent and receive and invitation form Professor Palin.
Explains the process of getting Unknown Fragments for Professor Palin.
Hope it is useful