The costs for initial electron energies 100 eV, 1 keV and 10 keV were calculated for air at ~120 km (mixture of 70% N2, 10% O2 and 20% O).
| # | State | Threshold, eV | Eo=100eV | Eo=1keV | Eo=10keV | Plot for Eo<50eV | With e-e collisions |
|---|---|---|---|---|---|---|---|
| 1 |
| 6.17 | 188.1 | 220.1 | 219.8 | ||
| 2 |
| 7.35 | 191.7 | 223.8 | 224.8 | ||
| 3 |
| 7.36 | 221 | 261.4 | 262.4 | ||
| 4 |
| 8.16 | 819.4 | 994.3 | 999.5 | ||
| 5 |
| 11.03 | 449.8 | 560.9 | 561.6 | ||
| 6 |
| 11.88 | 18480 | 24900 | 25170 | ||
| 7 |
| 12.75 | 1518 | 2041 | 2065 | ||
| 8 |
| 12.8 | 844.2 | 1137 | 1150 | ||
| 9 |
| 12.85 | 4777 | 6508 | 6591 | ||
| 10 |
| 13.15 | 3291 | 4484 | 4544 | ||
| 11 |
| 8.4 | 1010 | 1228 | 1245 | ||
| 12 |
| 8.55 | 250.5 | 323.9 | 336.1 | ||
| 13 |
| 8.89 | 1011 | 1206 | 1211 | ||
| 14 |
| 12.25 | 2690 | 3681 | 3809 | ||
| 15 |
| 12.5 | 57.97 | 73.4 | 76.54 | ||
| 16 |
| 12.94 | 143.7 | 181.5 | 189.4 | ||
| 17 |
| 15.58 | 148.4 | 124.3 | 121.4 | ||
| 18 |
| 16.73 | 157.8 | 136.6 | 133.6 | ||
| 19 |
| 18.75 | 388.8 | 329.2 | 321.7 | ||
| 20 |
| 22 | 1060 | 871.7 | 850.4 | ||
| 21 |
| 23.6 | 1111 | 905.4 | 883 | ||
| 22 |
| 40 | 1026 | 711.5 | 689 | ||
| 23 |
| 26 | 216.6 | 163.7 | 159.1 |