| Satellite class | Mass (kg) |
| Large (observatories, etc.) | >1000 |
| Mini Smallsats (or light satellites) | 100 - 1000 |
| Micro | 10 - 100 |
| Nano | 1 - 10 |
| Pico | 0.1 - 1 |
| Femto Satellite-on-a-chip | 0.01 - 0.1 |