JAS always uses the minAspect RCS in calculating ranges, with one exception: S2A adjudication against a Flight whose target is the air defense site itself (or the installation where the AD site is located).
MinAspect RCS is calculated by finding the median of these 13 sectors relative to the nose of the aircraft:
| Elevation | Azimuth |
|---|---|
| 0 | 20 |
| 2.5 | 40 |
| 5 | 60 |
| 7.5 | 80 |
| 10 | 100 |
| 12.5 | 120 |
A specific method for determining AllAspect RCS has not been established yet.