score | calculated Er | diameter of macular damage | grade |
---|---|---|---|
1 point | Er = 12–35 cal cm-2 min-2 | 100–150 µm | 2 points – grade 1 |
2 points | Er =35–140 cal cm-2 min-2 | 150–200 µm | 3 points – grade 2 |
3 points | Er >140 cal cm-2 min-2 | >200 µm | 4 points – grade 3 |
5 points – grade 4 | |||
6 points – grade 5 |
Time of observation (CET) | Solar elevation (deg) | Obscurity (%) | L ( |
||
---|---|---|---|---|---|
7:52 | 14.8 | 0 | 610 | 90551 | 2.16 |
10:21 | 31.9 | 45.4 | 860 | 69704 | 1.66 |
12.01 | 36.4 | 0 | 893 | 132560 | 3.17 |