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Table 3

Daily motion of radiant of the real showers associated with comet 2P/Encke selected from the considered databases.

DB-No. λmin. λmax. Aα Bα Aδ Bδ
Part 1 - northern showers
R-N06 79.000 72.8 89.7 61.90 ± 0.29 0.588 ± 0.061 25.43 ± 0.31 0.170 ± 0.064
R-N10 90.080 81.4 99.5 72.80 ± 0.46 0.607 ± 0.093 27.30 ± 0.52 − 0.055 ± 0.104
R-N05 93.576 83.5 102.3 73.76 ± 0.54 0.584 ± 0.089 29.48 ± 0.60 0.061 ± 0.099
R-N04 179.624 165.6 187.8 15.16 ± 0.32 0.542 ± 0.048 11.52 ± 0.42 0.153 ± 0.065
S-N11 188.066 174.2 197.5 21.56 ± 0.21 0.560 ± 0.034 11.89 ± 0.19 0.263 ± 0.031
R-N11 219.088 209.7 230.7 53.88 ± 0.54 0.734 ± 0.076 23.00 ± 0.31 0.207 ± 0.043
C-N01 227.249 199.4 250.6 56.05 ± 0.05 0.761 ± 0.005 22.32 ± 0.03 0.176 ± 0.004
E-N01 227.302 200.4 254.2 56.58 ± 0.04 0.770 ± 0.004 22.43 ± 0.04 0.170 ± 0.003
R-N08 229.071 220.5 235.5 60.00 ± 0.38 0.559 ± 0.067 23.79 ± 0.47 0.156 ± 0.083
S-N02 229.947 217.1 243.0 58.84 ± 0.03 0.736 ± 0.005 22.76 ± 0.02 0.156 ± 0.004
S-N01 231.061 197.0 264.0 59.47 ± 0.04 0.770 ± 0.003 23.15 ± 0.04 0.175 ± 0.003
E-N06 243.534 237.5 249.2 69.95 ± 0.06 0.798 ± 0.029 24.76 ± 0.07 0.069 ± 0.032
C-N07 244.479 240.4 250.6 70.04 ± 0.09 0.708 ± 0.040 24.65 ± 0.09 0.180 ± 0.038
F-N01 258.381 250.7 265.1 55.79 ± 0.86 1.988 ± 0.282 22.18 ± 0.23 0.393 ± 0.077
F-N07 259.986 256.6 263.0 86.49 ± 0.53 0.280 ± 0.228 25.56 ± 0.42 0.155 ± 0.181
E-N07 260.982 256.1 268.6 90.44 ± 0.18 0.765 ± 0.053 26.19 ± 0.21 0.007 ± 0.063
S-N06 263.600 251.3 274.9 92.37 ± 0.12 0.762 ± 0.024 25.80 ± 0.11 − 0.012 ± 0.024
C-N05 268.394 250.7 288.1 96.64 ± 0.16 0.754 ± 0.019 26.47 ± 0.15 − 0.010 ± 0.018

Part 2 - southern showers
R-S11 97.530 89.8 102.4 84.50 ± 0.46 0.479 ± 0.116 20.70 ± 0.43 − 0.145 ± 0.109
S-S09 155.116 145.8 163.5 357.61 ± 0.32 0.619 ± 0.067 − 5.84 ± 0.39 0.164 ± 0.083
E-S08 161.773 156.9 168.4 3.75 ± 0.27 0.567 ± 0.065 − 3.19 ± 0.28 0.307 ± 0.067
E-S07 163.531 157.3 168.3 1.07 ± 0.23 0.657 ± 0.071 − 2.36 ± 0.32 0.250 ± 0.097
C-S12 165.749 156.2 175.7 1.38 ± 0.32 0.498 ± 0.054 − 2.04 ± 0.32 0.247 ± 0.054
C-S04 204.226 190.5 217.5 38.39 ± 0.05 0.656 ± 0.010 10.31 ± 0.04 0.176 ± 0.008
S-S06 205.211 201.7 208.5 41.01 ± 0.09 0.640 ± 0.036 11.14 ± 0.09 0.149 ± 0.038
R-S10 210.146 201.9 217.0 45.54 ± 0.24 0.423 ± 0.046 12.00 ± 0.44 0.107 ± 0.084
S-S05 210.696 206.3 214.5 44.85 ± 0.09 0.662 ± 0.041 12.59 ± 0.10 0.123 ± 0.043
E-S01 213.146 178.8 242.1 45.49 ± 0.04 0.719 ± 0.003 12.01 ± 0.04 0.177 ± 0.003
C-S01 214.819 175.9 245.4 46.54 ± 0.05 0.716 ± 0.004 12.23 ± 0.04 0.168 ± 0.003
R-S08 218.663 204.9 233.9 54.53 ± 0.50 0.676 ± 0.067 15.16 ± 0.34 0.154 ± 0.047
S-S01 220.267 196.7 240.0 51.36 ± 0.03 0.712 ± 0.004 13.71 ± 0.03 0.156 ± 0.003
E-S03 249.221 229.9 267.5 78.09 ± 0.11 0.765 ± 0.015 17.85 ± 0.11 0.051 ± 0.016
S-S02 249.313 230.4 271.7 77.98 ± 0.07 0.753 ± 0.008 18.24 ± 0.08 0.034 ± 0.010
C-S05 251.003 232.7 271.0 79.11 ± 0.10 0.756 ± 0.011 17.88 ± 0.11 0.022 ± 0.012
R-S15 255.757 248.1 263.5 92.86 ± 0.59 0.673 ± 0.096 19.43 ± 0.49 − 0.190 ± 0.080
F-S01 258.567 249.0 266.7 52.05 ± 0.87 2.523 ± 0.260 13.55 ± 0.18 0.461 ± 0.055
E-S05 264.663 254.0 275.7 95.84 ± 0.21 0.714 ± 0.034 17.90 ± 0.26 − 0.078 ± 0.043
C-S09 268.911 259.9 282.1 101.15 ± 0.20 0.610 ± 0.045 19.21 ± 0.27 − 0.040 ± 0.059

Notes. Specifically, the letters F, C, S, E, and R stand for the IAU-MDC photographic, video IAU-MDC CAMS, video SonotaCo, video EDMOND, and radio-meteor database (DB), respectively. “No.” is the serial number of shower selected from a given database; is the mean solar longitude of the shower; λmin. and λmax. delimit the period of the shower activity in terms of solar longitude of meteors; and Aα, Bα, Aδ, and Bδ are the coefficients in Eqs. (17) and (18) used to calculate the corrected radiant of a given meteor. Solar longitudes and coefficients Aα and Aδ are given in degrees. Coefficients Bα and Bδ are dimensionless.

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