1921
| encounters with trails |
| trail | year | rD-rE | Vej | fM(fMD) | sol.long. | Max. time | ZHRex | Reliability |
| rev. | - | m/s | - | ° | AU | UT | meteors | - |
| 10 | 1600 | -0.00097 | -26.98 | 0.146 | 233.609 | 15.11.1921 10:12 | 27 | 0 |
| 10 | 1600 | -0.00008 | -25.61 | -0.007 | 233.614 | 15.11.1921 10:19 | 3 | 0 |
| 17 | 1366 | 0.00501 | -11.91 | 0.961 | 233.614 | 15.11.1921 14:41 | 13 | 0 |
| 17 | 1366 | 0.00499 | -11.40 | -0.092 | 233.830 | 15.11.1921 16:10 | 1 | 0 |
| 14 | 1466 | -0.00357 | -11.56 | -0.039 | 234.076 | 15.11.1921 21:19 | 1 | 0 |
| 15 | 1433 | 0.00291 | -9.32 | -0.029 | 234.076 | 15.11.1921 21:20 | 1 | 1 |
| 29 | 968 | 0.00261 | -5.22 | -0.032 | 234.313 | 16.11.1921 2:57 | 1 | 0 |
| 29 | 968 | 0.00272 | -5.21 | 0.057 | 234.314 | 16.11.1921 2:59 | 2 | 0 |
| 17 | 1366 | 0.00321 | -8.98 | 0.088 | 235.214 | 17.11.1921 0:24 | 2 | 1 |
| 17 | 1366 | 0.00312 | -8.57 | -0.234 | 235.236 | 17.11.1921 0:56 | 6 | 1 |
| 13 | 1499 | -0.00463 | -14.80 | -0.044 | 235.298 | 17.11.1921 2:25 | 1 | 0 |
| 13 | 1499 | -0.00477 | -14.76 | 0.033 | 235.299 | 17.11.1921 2:26 | 1 | 0 |
| 28 | 1001 | 0.00032 | -8.72 | -0.007 | 235.361 | 17.11.1921 3:55 | 1 | 0 |
| 17 | 1366 | 0.00035 | -9.05 | 0.004 | 235.404 | 17.11.1921 4:56 | 3 | 1 |
| 14 | 1466 | 0.00054 | -9.53 | 0.002 | 235.488 | 17.11.1921 6:55 | 2 | 1 |
| 15 | 1433 | 0.00235 | -7.86 | -0.044 | 235.493 | 17.11.1921 7:03 | 2 | 1 |
| 29 | 968 | -0.00006 | -5.81 | -0.014 | 235.493 | 17.11.1921 7:03 | 2 | 0 |
| 14 | 1466 | 0.00025 | -9.52 | -0.021 | 235.495 | 17.11.1921 7:07 | 30 | 1 |
| 14 | 1466 | 0.00190 | -9.37 | 0.005 | 235.940 | 17.11.1921 17:39 | 1 | 1 |
| 14 | 1466 | 0.00216 | -9.35 | 0.007 | 236.115 | 17.11.1921 21:52 | 1 | 1 |
| 14 | 1466 | 0.00275 | -9.36 | -0.025 | 236.129 | 17.11.1921 22:14 | 1 | 1 |
| traditional maximum |
| sol.long. | Max. time | ZHRex | Intensity |
| ° | UT | meteors | - |
| 234.869 | 16.11.1921 16:12 | 25 | 4 |
In 1921 a very strong traditional maximum is expected. It is to occur at 16 UT 16 November, its ZHR can surpass 25 meteors. Also a number of enhancements from trails are possible. Some bright meteors can be produced by 1600 and 1366 trails in the period 10-15 UT 15 November. Another small increase is possible at 1 UT 17 November, again from 1366 trail. Finally, at 7 UT 17 November average meteor brighness can rise up due to the 1466 trail.
1922
| encounters with trails |
| trail | year | rD-rE | Vej | fM(fMD) | sol.long. | Max. time | ZHRex | Reliability |
| rev. | - | m/s | - | ° | AU | UT | meteors | - |
| 16 | 1400 | 0.00059 | -10.20 | 0.002 | 232.678 | 14.11.1922 18:10 | 1 | 0 |
| 15 | 1433 | 0.00050 | -10.38 | 0.014 | 232.816 | 14.11.1922 21:28 | 12 | 0 |
| 15 | 1433 | 0.00036 | -10.36 | -0.004 | 232.820 | 14.11.1922 21:34 | 4 | 0 |
| 25 | 1102 | 0.00013 | -5.95 | 0.004 | 234.491 | 16.11.1922 13:21 | 1 | 0 |
| traditional maximum |
| sol.long. | Max. time | ZHRex | Intensity |
| ° | UT | meteors | - |
| 234.869 | 16.11.1922 22:21 | 25 | 4 |
In 1922 again a strong traditional maximum is expected, but it can be a little weaker than in 1921. It is to occur at 22 UT 16 November and its intensity will be 25 meteors on ZHR scale. Also, some increase of bright meteors number can be produced by 1433 trail at 21-22 UT 14 November.
1923
| encounters with trails |
| trail | year | rD-rE | Vej | fM(fMD) | sol.long. | Max. time | ZHRex | Reliability |
| rev. | - | m/s | - | ° | AU | UT | meteors | - |
| 10 | 1600 | -0.00387 | -21.42 | 0.015 | 233.538 | 15.11.1923 20:49 | 1 | 1 |
| 4 | 1800 | -0.00145 | -45.29 | 0.384 | 234.681 | 17.11.1923 0:02 | 6 | 1 |
| traditional maximum |
| sol.long. | Max. time | ZHRex | Intensity |
| ° | UT | meteors | - |
| 234.869 | 17.11.1923 4:30 | 10-15 | 1 |
In 1923 background activuty will be weaker than in two previous years with ZHRmax about 10-15 meteors at 4-5 UT 17 November. Also, at 0 UT 17 November some increase of average meteor brightness is possible due to 1800 trail.
1924
| encounters with trails |
| trail | year | rD-rE | Vej | fM(fMD) | sol.long. | Max. time | ZHRex | Reliability |
| rev. | - | m/s | - | ° | AU | UT | meteors | - |
| not found |
| traditional maximum |
| sol.long. | Max. time | ZHRex | Intensity |
| ° | UT | meteors | - |
| 234.869 | 16.11.1924 10:40 | 10 | 1 |
In 1924 only traditional maximum is expected. Its intensity will be low, with ZHR about 10 meteors. Maximum time is 11 UT 1 November.
1925
| encounters with trails |
| trail | year | rD-rE | Vej | fM(fMD) | sol.long. | Max. time | ZHRex | Reliability |
| rev. | - | m/s | - | ° | AU | UT | meteors | - |
| 5 | 1767 | 0.00207 | -29.17 | 1.171 | 233.963 | 15.11.1925 19:14 | 95 | 1 |
| 5 | 1767 | 0.00223 | -28.69 | 0.024 | 233.963 | 15.11.1925 19:15 | 2 | 1 |
| 5 | 1767 | 0.00215 | -28.98 | -0.815 | 233.964 | 15.11.1925 19:16 | 65 | 1 |
| traditional maximum |
| sol.long. | Max. time | ZHRex | Intensity |
| ° | UT | meteors | - |
| 234.869 | 16.11.1925 16:49 | 10 | 1 |
In 1925 at 17 UT 16 November a weak traditional maximum with ZHR about 10 meteors is expected. Also, at 19:15 UT 15 November an encounter with 1767 will occur. A definite increase of activity and sharp rising of bright meteors and fireballs amounts are possible, although outburst intensity should be several times lower than follows from the table data.
1926
| encounters with trails |
| trail | year | rD-rE | Vej | fM(fMD) | sol.long. | Max. time | ZHRex | Reliability |
| rev. | - | m/s | - | ° | AU | UT | meteors | - |
| 7 | 1699 | -0.00482 | -25.35 | 0.104 | 233.447 | 15.11.1926 13:06 | 2 | 1 |
| 7 | 1699 | -0.00486 | -25.45 | -0.503 | 233.448 | 15.11.1926 13:08 | 8 | 1 |
| 7 | 1699 | -0.00491 | -25.57 | -0.531 | 233.451 | 15.11.1926 13:12 | 8 | 1 |
| 6 | 1733 | 0.00093 | -24.58 | 0.005 | 234.352 | 16.11.1926 10:39 | 4 | 1 |
| traditional maximum |
| sol.long. | Max. time | ZHRex | Intensity |
| ° | UT | meteors | - |
| 234.869 | 16.11.1926 22:58 | 10-15 | 1 |
In 1926 some increase of traditional maximum intensity is expected. It is to occur at 23 UT 16 November with ZHR=10-15 meteors. A small increase of bright meteors numbers can be produced by 1699 trail at 13 UT 15 November.
1927
| encounters with trails |
| trail | year | rD-rE | Vej | fM(fMD) | sol.long. | Max. time | ZHRex | Reliability |
| rev. | - | m/s | - | ° | AU | UT | meteors | - |
| 7 | 1699 | 0.00560 | -19.60 | 1.018 | 233.922 | 16.11.1927 6:35 | 22 | 1 |
| 3 | 1833 | 0.00502 | -29.31 | 0.183 | 236.646 | 18.11.1927 23:24 | 2 | 1 |
| traditional maximum |
| sol.long. | Max. time | ZHRex | Intensity |
| ° | UT | meteors | - |
| 234.869 | 17.11.1927 5:07 | 10-15 | 0 |
In 1927 backgroud maximum is expected to be very weak, but considering coming comet 55P its intensity at 5 UT 17 November should reach 10-15 meteors on ZHR scale. Also, at 6:35 UT 16 November an increase of bright meteors number from 1699 trail is possible.
1928
| encounters with trails |
| trail | year | rD-rE | Vej | fM(fMD) | sol.long. | Max. time | ZHRex | Reliability |
| rev. | - | m/s | - | ° | AU | UT | meteors | - |
| 13 | 1499 | -0.00418 | -11.71 | -0.079 | 233.386 | 14.11.1928 23:57 | 2 | 0 |
| 13 | 1499 | -0.00324 | -11.88 | 0.028 | 233.415 | 15.11.1928 0:39 | 1 | 0 |
| 29 | 968 | -0.00143 | -4.52 | -0.008 | 233.642 | 15.11.1928 6:03 | 1 | 0 |
| 15 | 1433 | -0.00013 | -6.24 | -0.029 | 233.846 | 15.11.1928 10:55 | 48 | 1 |
| 17 | 1366 | -0.00066 | -6.85 | -0.001 | 233.930 | 15.11.1928 12:55 | 1 | 1 |
| 16 | 1400 | 0.00032 | -5.81 | -0.025 | 233.940 | 15.11.1928 13:10 | 26 | 1 |
| 17 | 1366 | 0.00062 | -6.36 | 0.167 | 233.980 | 15.11.1928 14:07 | 83 | 1 |
| 17 | 1366 | 0.00062 | -6.36 | -0.349 | 233.981 | 15.11.1928 14:09 | 172 | 1 |
| 17 | 1366 | 0.00050 | -6.77 | -0.004 | 233.983 | 15.11.1928 14:11 | 2 | 1 |
| 17 | 1366 | 0.00063 | -6.72 | 0.015 | 233.990 | 15.11.1928 14:21 | 8 | 1 |
| 17 | 1366 | 0.00061 | -6.77 | 0.002 | 234.004 | 15.11.1928 14:40 | 1 | 1 |
| 17 | 1366 | 0.00057 | -6.67 | -0.001 | 234.009 | 15.11.1928 14:48 | 1 | 1 |
| 30 | 935 | 0.00256 | -3.33 | -0.074 | 234.205 | 15.11.1928 19:28 | 2 | 0 |
| 30 | 935 | 0.00256 | -3.33 | 0.044 | 234.207 | 15.11.1928 19:31 | 1 | 0 |
| 18 | 1333 | -0.00180 | -4.53 | 0.017 | 234.231 | 15.11.1928 20:05 | 1 | 0 |
| 18 | 1333 | -0.00013 | -4.01 | 0.005 | 234.281 | 15.11.1928 21:16 | 6 | 0 |
| 17 | 1366 | 0.00184 | -6.00 | -0.023 | 234.288 | 15.11.1928 21:27 | 1 | 1 |
| 15 | 1433 | 0.00416 | -5.42 | -0.155 | 234.310 | 15.11.1928 21:58 | 1 | 1 |
| 8 | 1666 | -0.00460 | -13.99 | 0.036 | 234.436 | 16.11.1928 0:58 | 1 | 1 |
| 18 | 1333 | 0.00065 | -4.03 | -0.002 | 234.466 | 16.11.1928 1:41 | 1 | 0 |
| 7 | 1699 | 0.00033 | -10.05 | 0.140 | 234.939 | 16.11.1928 12:56 | 851 | 2 |
| 7 | 1699 | 0.00028 | -9.14 | -0.010 | 235.044 | 16.11.1928 15:26 | 74 | 3 |
| 7 | 1699 | -0.00034 | -9.07 | -0.000 | 235.056 | 16.11.1928 15:44 | 3 | 3 |
| 6 | 1733 | -0.00320 | -11.65 | -0.095 | 235.979 | 17.11.1928 13:42 | 6 | 2 |
| 4 | 1800 | -0.00423 | -16.22 | 0.119 | 235.994 | 17.11.1928 14:02 | 7 | 2 |
| 4 | 1800 | -0.00377 | -16.39 | -0.009 | 236.016 | 17.11.1928 14:34 | 1 | 2 |
| 4 | 1800 | -0.00377 | -16.39 | 0.008 | 236.016 | 17.11.1928 14:35 | 1 | 2 |
| traditional maximum |
| sol.long. | Max. time | ZHRex | Intensity |
| ° | UT | meteors | - |
| 234.869 | 16.11.1928 11:17 | 40 | 4 |
In 1928 the first heightened Leonid activity due to returning comet 55P will happen. The first possible enhancement is to occur at 11-14 UT 15 November. It is connected with 1366, 1400 and 1443 trails. In this period considerable increase of bright meteors number is expected and ZHR can rise up to several dozens meteors. The next outburst from 1699 trail will coinside with traditional maximum, whose intensity is expected to be very high. Peak is close to 13 UT 16 November, and at this time considerable increase of bright meteors and fireballs numbers is expected while ZHR can rise up to 150-200 meteors.
1929
| encounters with trails |
| trail | year | rD-rE | Vej | fM(fMD) | sol.long. | Max. time | ZHRex | Reliability |
| rev. | - | m/s | - | ° | AU | UT | meteors | - |
| 2 | 1866 | 0.00155 | -27.70 | 0.563 | 234.798 | 16.11.1929 15:44 | 255 | 1 |
| 8 | 1666 | -0.00280 | -10.71 | 0.233 | 234.946 | 16.11.1929 19:15 | 16 | 1 |
| 8 | 1666 | -0.00266 | -10.44 | -0.149 | 234.951 | 16.11.1929 19:23 | 11 | 1 |
| 8 | 1666 | -0.00258 | -10.24 | 0.010 | 234.952 | 16.11.1929 19:25 | 1 | 1 |
| 7 | 1699 | 0.00011 | -9.06 | 0.000 | 235.042 | 16.11.1929 21:33 | 4 | 3 |
| 7 | 1699 | 0.00080 | -9.00 | -0.007 | 235.074 | 16.11.1929 22:19 | 10 | 3 |
| 7 | 1699 | 0.00083 | -8.14 | 0.094 | 235.133 | 16.11.1929 23:43 | 98 | 3 |
| 3 | 1833 | -0.00138 | -18.07 | 0.003 | 235.174 | 17.11.1929 0:41 | 3 | 2 |
| 3 | 1833 | -0.00133 | -18.08 | -0.006 | 235.175 | 17.11.1929 0:42 | 9 | 2 |
| 3 | 1833 | -0.00155 | -19.32 | 0.315 | 235.206 | 17.11.1929 1:26 | 279 | 2 |
| 4 | 1800 | -0.00153 | -13.55 | 0.074 | 235.613 | 17.11.1929 11:08 | 49 | 2 |
| 25 | 1102 | -0.00038 | 5.50 | 0.002 | 235.663 | 17.11.1929 12:20 | 1 | 1 |
| 5 | 1767 | -0.00178 | -11.09 | 0.101 | 235.801 | 17.11.1929 15:37 | 29 | 2 |
| 6 | 1733 | -0.00271 | -9.95 | 0.096 | 235.858 | 17.11.1929 16:58 | 7 | 3 |
| traditional maximum |
| sol.long. | Max. time | ZHRex | Intensity |
| ° | UT | meteors | - |
| 234.869 | 16.11.1929 17:26 | 30 | 2 |
In 1929 the first enhancement will be traditional maximum mixed with bright meteors from 1866 trail. In the period 16-17 UT 16 November activity can rise up to 40-50 meteors on ZHR scale. The next peak from 1699 trail should happen at 0 UT 17 November. Its intensity is also to be about 50 meteors on ZHR scale with high share of bright meteors. The third enhancement will be produced by 1800 trail. This trail should give many bright meteors and fireballs and maximal activity at 1:26 UT 17 November can reach several dozens meteors on ZHR scale. Finally, at 11:08 and 15:37 UT 17 November 1800 and 1767 trails, respectively, can give and increase of bright meteors number.
1930
| encounters with trails |
| trail | year | rD-rE | Vej | fM(fMD) | sol.long. | Max. time | ZHRex | Reliability |
| rev. | - | m/s | - | ° | AU | UT | meteors | - |
| 7 | 1699 | -0.00002 | -6.26 | 0.002 | 235.180 | 17.11.1930 7:00 | 31 | 3 |
| 3 | 1833 | -0.00185 | -12.04 | 0.313 | 235.309 | 17.11.1930 10:03 | 114 | 2 |
| 10 | 1600 | 0.00016 | -5.62 | 0.000 | 235.309 | 17.11.1930 10:25 | 1 | 2 |
| 4 | 1800 | -0.00116 | -9.55 | 0.226 | 235.491 | 17.11.1930 14:23 | 171 | 3 |
| 5 | 1767 | -0.00184 | -8.28 | 0.179 | 235.623 | 17.11.1930 17:32 | 29 | 3 |
| 6 | 1733 | -0.00315 | -7.85 | 0.152 | 235.703 | 17.11.1930 19:26 | 5 | 3 |
| traditional maximum |
| sol.long. | Max. time | ZHRex | Intensity |
| ° | UT | meteors | - |
| 234.869 | 16.11.1930 23:35 | 25 | 1 |
In 1930 several enhancements are expected. The first will be traditional maximum at 23:35 UT 16 November, whose low intensity in view of close comet 55P will mean activity about 25 meteors on ZHR scale. At 7:00 UT 17 November 1699 trail should increase ZHR to 30 meteors, the further increase to 50-60 meteors on ZHR scale is likely closer to 10:03 UT 17 November because of encounter with 1833 trail. All this will be accompanied with increase of bright meteors and fireballs numbers. The next notable enhancement is to occur at 14:23 UT 17 November when 1800 trail will rise ZHR up to 90-100 meteors, again with large numbers of bright meteors. Finally, at 17:32 UT 17 Novembers a small increase of bright meteors numbers is to happen due to encounter with 1767 trail.