Table 3. Detailed data of trails of Leonids in 2004.
| Year of Ejection | Discharge Speed [m/s] | da [AU] | Date | Time [UT] | Sol.Long. | dR [AU] | fM | Alpha [deg] | Delta [deg] | Velocity [km/s] | Expected peak level |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Main Trails (Ejected from 1699-1965) | |||||||||||
| 1965 | 120.96 | 1.35 | Nov.17 | 09:22 | 235.315 | -0.0017 | 0.94 | 153.61 | 21.62 | 70.81 | No peak |
| 1932 | 69.02 | 0.74 | Nov.17 | 09:03 | 235.302 | +0.0074 | 0.87 | 153.55 | 21.62 | 70.55 | No peak |
| 1899 | 52.76 | 0.56 | Nov.19 | 04:54 | 237.145 | +0.0167 | 0.35 | 154.76 | 21.09 | 70.37 | No peak |
| 1866 | 20.61 | 0.21 | Nov.20 | 11:49 | 238.445 | -0.0081 | 0.068 | 155.65 | 20.92 | 70.90 | No peak |
| 1833 | 14.90 | 0.15 | Nov.19 | 23:15 | 237.916 | -0.0108 | 0.080 | 155.35 | 21.11 | 70.94 | No peak |
| 1800 | 13.84 | 0.14 | Nov.19 | 15:48 | 237.603 | -0.0106 | 0.064 | 155.16 | 21.17 | 70.93 | No peak |
| 1767 | 14.84 | 0.15 | Nov.19 | 08:49 | 237.309 | -0.0071 | 0.0035 | 154.95 | 21.22 | 70.85 | No peak |
| 1733 | 20.82 | 0.22 | Nov.19 | 21:26 | 237.840 | -0.0023 | 0.10 | 155.19 | 20.76 | 70.80 | Middle scale peak |
| 1699 | 7.50 | 0.08 | Nov.20 | 10:39 | 238.396 | -0.0169 | 0.0045 | 155.54 | 20.68 | 71.13 | No peak |
| 1699 | 7.68 | 0.08 | Nov.20 | 11:03 | 238.413 | -0.0180 | 0.030 | 155.55 | 20.67 | 71.16 | No peak |
| Old Trails ( within 0.003 [AU]) | |||||||||||
| 1333 | 14.27 | 0.14 | Nov.19 | 06:39 | 237.218 | +0.0018 | 0.022 | 154.95 | 21.28 | 70.64 | Low level peak |
| 1167 | 13.10 | 0.13 | Nov.21 | 09:54 | 239.374 | +0.0029 | 0.0049 | 156.27 | 20.54 | 70.67 | No peak |
| 1135 | 11.75 | 0.12 | Nov.21 | 08:21 | 239.309 | +0.0006 | 0.0040 | 156.21 | 20.48 | 70.73 | Low level peak? |