| view of mobile sps rece… | 0.41 |
| orbit | 0.41 |
| transmit signal | 0.68 |
| orbit the earth | 0.67 |
| transmit datum | 0.31 |
| weigh approximately 2,0… | 0.25 |
| travel in orbit | 0.25 |
| atomic clocks | 0.25 |
| unique number | 0.25 |
| visible | 0.44 |
| launched in 1978 | 0.50 |
| launched in february | 0.36 |
| launched | 0.23 |