| for 40 years | 5 | temporal |
| with low-light sensors | 3 | other |
| often | 2 | temporal |
| satellite → be → observed | 8 |
| satellite → make → observation | 5 |
| negative | neutral | positive |
| 0.072 | 0.813 | 0.115 |
| Raw frequency | 13 |
| Normalized frequency | 0.270 |
| Modifier score | 0.600 |
| Perplexity | 97.217 |