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[00535]   [THC] Name-designation: theta-Cetids   Shower status - Working        Activity  AdNo Sl_b Sl_e Sl_a RA DE dRA dDE V LoR SLoR LaR Theta Phi a q e Peri Node Incl N T A O R References     [deg]     [deg/day] [km/s] [deg]    [AU] [AU]   [deg]    annual 000 129 147 137 23.0 -10.2 0.82 0.37 61.8 17.31 240.31 -18.39 145.53 303.87 0.499 0.969 92 317 138.0 000000015 T   Segon et al., 2014 annual 002 129.0 139.0 132.9 19.6 -11.6 0.92 0.34 62.5 13.5 240.6 -18.5 145.77 304.08 749.0 0.514 0.999 89.1 312.9 138.5 000000073 T M   Jenniskens, 2023 Parent body: C/1939 H1 (Jurlof-Achmarof-Hassel) Notes: