| Observer | symbol |
| (pre - empty; post - full) | |
| CCD | pentagon |
| Roemer | triangle |
| Scotti (nuclear) | diamond |
| Scotti (total) | square |
| General | circle |
| Total r > 3 AU | pre - cross |
| post - chicken-foot |
Appendix B: Plots of V(1,1,0) vs. r
Copyright The European Southern Observatory (ESO)