What do red question marks mean?

[Kelly Bellis]

A client has asked that I return to a project we worked on about a year ago. Looking in the Points screen for the project, there are many red question marks - ?

What do these red question marks mean?

 

[Shawn Billings]

I suspect that the database from a year ago did not support the solution type for the base. Typically this would show one of four possible solution types:
AU - base from autonomous position
CP - base from CORS processing through J-Field DPOS
KN - base from manual entry or recall from list
ML - base from M-Local (either reverse shift or base shift)

 

[Kelly Bellis]

Thank you Shawn for the response.