| Crab | Vela |
Mass ( ) | 1.4 | 1.8 |
Age (kyr) | 1.24 | 11.3 |
B (1012 G) | 4.875 | 4.35 |
| 200 | 70 |
| 4 × 10−9 | 2.338 × 10−6 |
| 1.6 | 2.5 |