| 1983 notation | Present notation | |
| Separator angles |
|
|
| Angle |
|
|
| Property |
|
|
| Polarisation measure from A |
|
|
| Polarisation measure from A |
|
|
| Polarisation measure from B |
|
|
| Polarisation measure from B |
|
|
| Definition | See Equation (27) | See Equation (28) |
