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Table 2.
Different types of uncertainties for the synthetic and real meteor data.
| Synthetic meteor data | ||||
|---|---|---|---|---|
| N | MADa (estimated) | Uncertainties median (propagated) | MADa (propagated) | |
| 151 | RA | 0.11 | 0.33 | 0.12 |
| (random) | Dec | 0.07 | 0.16 | 0.09 |
| V | 0.40 | … | ||
| 161 | RA | 0.05 | 0.35 | 0.14 |
| (shower) | Dec | 0.03 | 0.25 | 0.16 |
| V | 0.45 | … | … | |
| 126b | RA | 0.03 | 0.37 | 0.13 |
| (shower) | Dec | 0.03 | 0.27 | 0.18 |
| V | 0.44 | … | … | |
| Real meteor data | ||||
| 177 | RA | … | 0.64 | 0.29 |
| (all) | Dec | … | 0.29 | 0.18 |
| Vg | … | 1.18 | 0.70 | |
| 71 | RA | … | 0.72 | 0.21 |
| (Perseids) | Dec | … | 0.22 | 0.22 |
| Vg | … | 0.88 | 0.48 | |
Notes.
(a)
For a symmetric distribution the median absolute deviation equals half the interquartile range. Figure 9 shows graphically the statistical properties of the propagated uncertainties.
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