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Table 2
The input parameters of the wave modes in the synthetic data, combined with the results of the FFT analysis on the synthetic data.
| Time interval | Period intensity | Period area | Phase diff. | Mode type | A | Phase speed | |
| (Min.) | (Min.) | (Min.) | (degrees) | (km s-1) | |||
|
|
|||||||
| True value | [ 0,8.1 ] | 2.5 | 2.5 | ± 180 | Fast surface | 37.9 | 7.67 |
| Inferred value | [ 0,8 ] | 2.67 | 2.7* | −178 | Fast | 50.4 | 7.5 |
| Error estimate | − | − | [ 2.5,2.8 ] | [−153, −203 ] | − | [ 33.5,51.9 ] | [ 7.56,7.68 ] |
|
|
|||||||
| True value | [ 8.1,45.9 ] | 9.2 | 9.2 | 0 | Slow body | 28.8 | 6.93 |
| Inferred value | [ 8,46 ] | 9.5 | Not found | − | − | − | − |
| Error estimate | − | [ 7.5,11.5 ] | − | − | − | − | − |
|
|
|||||||
| True value | [ 45.9,76.9 ] | 7.4 | 7.4 | 0 | Slow surface | 9.71 | 6.27 |
| Inferred value | [ 46,77 ] | 7.7 | 7.7 | 0 | Slow | 69.1 | 7.2 |
| Error estimate | − | [ 6.2,9.2 ] | [ 6.7,8.7 ] | 4 | − | [ 69,99 ] | [ 7.18,7.23 ] |
|
|
|||||||
| True value | [ 76.9,95.4 ] | 4.9 | 4.9 | ± 180 | Fast surface | 14.9 | 7.77 |
| Inferred value | [ 77,95 ] | 4.6 | Not found | − | − | − | − |
| Error estimate | − | [ 3.1,5.1 ] | − | − | − | − | − |
|
|
|||||||
| True value | [ 95.4,114.4 ] | 5.4 | 5.4 | 0 | Slow body | 56.5 | 7.13 |
| Inferred value | [ 95,114 ] | 4.8 | 3.2 | 70 | Not found | 82.8 | 7.2 |
| Error estimate | − | − | [ 0.8,5.6 ] | [−30,170 ] | − | [ 68,97 ] | [ 7.1,7.23 ] |
|
|
|||||||
| True value | [ 114.4,135.9 ] | 5.6 | 5.6 | 0 | Slow body | 27.5 | 6.85 |
| Inferred value | [ 114,136 ] | 5.4 | Not found | − | − | − | − |
| Error estimate | − | [ 3.9,6.9 ] | − | − | − | − | − |
|
|
|||||||
| True value | [ 135.9,171 ] | 9.8 | 9.8 | 0 | Slow surface | 9.94 | 6.30 |
| Inferred value | [ 136,171 ] | 8.8 | 8.8 | −6 | Slow | 64.0 | 7.1 |
| Error estimate | − | [ 5.8,11.8 ] | [ 5.8,11.8 ] | − | − | [ 47,67 ] | [ 7.10,7.17 ] |
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