Nakano Note (Nakano wa Kangaeru noda) NK 3046 104P/Kowal 2
The following improved orbital elements, by S. Nakano, are from 373 observations 1997 to 2016, including planetary perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas, Vesta, and non-gravitational effect of style II. The mean residual is +/- 0.85 arc second. The residuals of re-observations in 2016 January were -0.54 deg for Right Ascension and -0.14 deg for Declination from the prediction in NK 1457 (= HICQ 2014) with the delta-T correction = +1.89 days. The comet has passed 0.30 AU from Jupiter on 2007 July 1 and will pass 0.35 AU and 0.60 AU from Jupiter on 2019 May 31 and 2031 July 24 UT, respectively. See the previous orbits in NK 356, NK 394, NK 449, NK 509, NK 621, NK 784, NK 960, NK 1023 and NK 1457. Epoch = 2016 Apr. 2.0 TT T = 2016 Mar. 28.16570 +/- 0.00078 (m.e.) TT Peri. = 200.65738 +/- 0.00017 Node = 235.43941 +/- 0.00015 (2000.0) Inc. = 10.25189 +/- 0.00008 q = 1.1792813 +/- 0.0000020 AU e = 0.6384885 +/- 0.0000005 a = 3.2620849 +/- 0.0000021 AU n' = 0.16728661 +/- 0.00000016 P = 5.892 +/- 0.0000058 years A1 = +0.232 +/- 0.014 A2 = +0.11956 +/- 0.00053 T = 1998 Mar. 2.16630 TT Epoch = 1998 Mar. 8.0 TT Peri. = 191.90135 e = 0.5852345 Node = 246.14860 (2000.0) a = 3.3672156 AU Inc. = 15.48874 n'= 0.15951359 q = 1.3966047 AU P = 6.179 years T = 2004 May 9.18100 TT Epoch = 2004 Apr. 25.0 TT Peri. = 192.03951 e = 0.5854084 Node = 246.08674 (2000.0) a = 3.3671044 AU Inc. = 15.48898 n'= 0.15952149 q = 1.3959731 AU P = 6.179 years T = 2010 May 4.83562 TT Epoch = 2010 May 4.0 TT Peri. = 200.54154 e = 0.6383219 Node = 235.50230 (2000.0) a = 3.2612752 AU Inc. = 10.25283 n'= 0.16734892 q = 1.1795319 AU P = 5.890 years The predicted orbit for the 2022 return is as follows: T = 2022 Jan. 11.52150 TT Epoch = 2022 Jan. 21.0 TT Peri. = 227.25964 e = 0.6653706 Node = 207.22575 (2000.0) a = 3.2069694 AU Inc. = 5.70160 n'= 0.17161761 q = 1.0731464 AU P = 5.743 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 1997/ 970910 658 0.3- 0.4- 971112 658 0.9- 0.1+ 970514 696 (2.3+ 3.7+) 970910 658 0.1+ 0.3- 971112 658 0.8- 0.0 970514 696 (1.7+ 4.1+) 970910 046 0.8+ 0.3- 971112 658 1.1- 0.0 970514 696 (1.1+ 3.7+) 970910 046 0.2+ 0.2- 971118 897 (0.3+ 2.6+) 970515 696 1.8+ 1.4+ 970910 046 0.4+ 0.7- 971118 897 (0.0 2.3+) 970515 696 1.6+ 1.1+ 970910 605 1.3- 1.0- 971118 347 0.2+ 0.8+ 970515 696 1.4+ 1.2+ 970910 605 1.0- 1.4- 971118 347 0.1+ 1.7+ 970531 402 (0.9+ 2.3+) 970910 605 0.3- 1.5- 971119 900 0.4+ 1.4+ 970531 402 (0.7+ 2.3+) 970910 605 1.0- 0.8- 971119 900 0.9+ 1.2+ 970531 402 (0.7- 3.8+) 970910 118 0.3+ 0.4- 971120 360 0.5- 0.9+ 970607 402 (1.0+ 3.0+) 970910 118 0.5+ 0.2- 971120 360 0.6- 1.0+ 970607 402 (0.5+ 2.7+) 970910 118 0.0 0.6- 971120 402 0.5- 0.8+ 970607 402 (0.9+ 2.8+) 970912 046 0.7+ 0.1- 971120 402 0.1- 0.9+ 970612 402 (0.8+ 2.2+) 970912 046 1.0+ 0.3- 971120 402 0.1- 0.9+ 970612 402 (0.1+ 2.0+) 970912 046 0.9+ 0.3- 971120 118 0.4+ 1.0+ 970612 402 (0.2- 2.6+) 970915 118 0.4+ 0.7- 971120 118 1.1+ 1.5+ 970629 402 (0.1+ 2.1+) 970915 118 0.4+ 0.8- 971124 403 1.4- 0.9+ 970629 402 0.5- 1.4+ 970916 118 0.7+ 0.1- 971124 403 1.2- 1.6+ 970629 402 0.1- 0.9+ 970916 118 0.5+ 0.5- 971124 403 0.6+ 1.5+ 970629 360 0.6- 1.5+ 970916 118 0.4+ 0.5- 971130 347 0.6- 0.4- 970629 360 0.0 1.7+ 970917 118 0.4+ 0.7- 971130 347 0.1- 0.6+ 970703 402 (0.2+ 2.1+) 970917 118 0.1+ 0.7- 971202 897 0.8- 0.9+ 970703 402 0.5- 1.4+ 970918 118 0.4- 0.3- 971202 897 0.5- 1.1+ 970703 402 0.1- 1.6+ 970918 118 0.2- 0.5- 971202 897 0.9- 0.8+ 970704 867 1.3- 0.5+ 970919 118 0.4- 0.5- 971204 360 0.8- 1.0+ 970704 867 1.9- 0.2+ 970919 118 0.4- 0.6- 971204 360 0.8- 1.0+ 970705 360 0.1- 1.5+ 970919 897 0.6- 0.5- 971216 605 (1.3- 2.0+) 970705 360 0.3- 1.6+ 970919 897 0.3+ 0.3- 971216 605 (0.7+ 3.5+) 970711 696 0.3+ 1.8+ 970919 897 0.4+ 0.3- 971216 605 (1.8- 3.7+) 970711 696 0.2+ 1.4+ 970919 108 0.7+ 1.0+ 971220 426 0.1- 0.8+ 970711 696 0.0 1.7+ 970919 108 (2.4+ 0.7+) 971220 426 0.0 0.6+ 970711 696 0.3+ 1.9+ 970920 118 1.1+ 0.4- 971220 426 1.3- 0.4+ 970714 696 0.2+ 1.1+ 970920 118 1.2+ 0.5- 971221 347 0.1+ 0.5+ 970714 696 0.3+ 1.2+ 970920 118 1.0+ 0.3- 971221 347 0.6- 0.6+ 970714 696 0.0 1.2+ 970920 605 0.0 0.3- 971221 347 0.1- 1.5+ 970714 696 0.0 1.2+ 970920 605 1.2+ 0.2+ 971221 897 1.2- 0.2+ 970714 696 0.2+ 1.2+ 970920 605 0.9+ 0.7- 971221 897 0.6- 0.6+ 970718 402 0.7- 0.4+ 970921 118 0.7+ 0.3- 971221 897 0.7- 1.1+ 970718 402 0.9- 0.1+ 970921 118 1.0+ 0.4- 971224 360 0.9- 0.7- 970718 402 1.2- 0.8+ 970921 118 0.8+ 0.5- 971224 360 0.7- 0.7- 970723 118 0.9- 0.0 970922 046 0.9+ 0.3- 971231 897 1.0- 0.2+ 970723 118 0.3- 0.3+ 970922 046 0.9+ 0.4- 971231 897 0.3- 0.8+ 970726 118 1.0- 0.1+ 970922 046 1.0+ 0.4- 971231 046 1.2- 0.5- 970727 118 0.8- 0.2- 970925 605 0.4+ 0.8- 971231 046 1.6- 0.5- 970728 118 1.0- 0.4- 970925 605 0.9+ 0.7- 971231 046 1.5- 0.4- 970728 118 1.2- 0.4- 970925 605 0.1+ 0.9- 1998/ 970728 691 0.3- 0.8- 970926 118 0.4+ 0.6+ 980108 118 0.2+ 0.8- 970728 691 0.4- 0.7- 970926 118 0.6+ 0.4+ 980108 118 0.8+ 0.4- 970801 360 0.6- 0.8- 970927 118 0.3+ 0.3+ 980109 143 (3.4- 4.6-) 970801 360 0.6- 0.8- 970927 118 0.5+ 0.1+ 980109 143 0.1- 1.5- 970802 118 1.2- 1.1- 970928 900 0.5+ 0.2- 980109 143 (3.1- 0.4-) 970802 118 1.1- 1.1- 970928 900 0.7+ 0.5+ 980109 143 (4.1- 5.6-) 970802 402 0.6- 0.6- 970928 352 1.1+ 0.4- 980109 143 (2.4- 2.5-) 970802 402 0.5- 1.0- 970928 352 1.6+ 0.4+ 980111 046 0.9- 1.2- 970804 118 1.2- 1.0- 970928 352 1.1+ 0.3+ 980111 046 0.8- 0.7- 970804 118 0.9- 1.0- 970928 402 0.5+ 0.1+ 980111 046 1.1- 0.7- 970804 118 0.6- 1.4- 970928 402 0.7+ 0.0 980119 355 0.3+ 0.5- 970804 118 0.2- 0.8- 970928 402 0.7+ 0.0 980119 355 0.6+ 0.3- 970804 118 0.6- 0.9- 970929 360 0.5+ 0.6+ 980120 402 0.6- 1.0- 970804 118 0.4- 1.3- 970929 360 0.3+ 0.3+ 980120 402 0.9- 1.2- 970805 118 1.0- 1.2- 970929 118 0.4+ 0.1+ 980120 402 1.0- 1.2- 970805 118 0.9- 1.2- 970929 118 0.1+ 0.1+ 980120 897 0.2+ 0.7- 970805 118 1.1- 0.9- 971001 867 0.7+ 0.0 980120 897 0.6- 0.8- 970806 118 1.0- 1.1- 971001 867 0.4+ 0.1+ 980125 347 0.6- 0.8+ 970806 118 1.2- 1.4- 971001 867 0.5+ 0.3- 980125 347 0.3- 0.3+ 970808 118 1.2- 1.9- 971003 108 1.8+ 0.4- 980126 897 0.7+ 1.1- 970808 118 (1.3- 2.2-) 971003 108 1.7+ 1.2- 980126 897 (2.6+ 0.4-) 970808 118 0.3- 0.8- 971003 108 0.6+ 0.4- 980126 897 0.1+ 0.6- 970808 118 0.6- 0.8- 971004 046 0.9+ 0.4+ 980126 118 (1.1+ 2.1-) 970808 118 0.4- 0.7- 971004 046 0.4+ 0.5+ 980126 118 0.3+ 1.5- 970809 897 0.1- 0.9- 971004 046 0.8+ 0.5+ 980129 360 0.1- 0.8- 970809 897 1.8- 1.4- 971005 469 0.0 0.7- 980129 360 0.3- 0.8- 970809 046 0.7- 0.9- 971005 469 0.9+ 0.7+ 980131 355 1.0- 0.9- 970810 046 0.7- 0.8- 971005 616 (2.6- 0.4-) 980131 355 0.8- 1.1- 970810 046 0.9- 1.0- 971005 616 1.2- 0.1- 980204 118 0.8- 1.3- 970810 118 0.9- 1.0- 971005 616 0.8- 0.7- 980204 118 0.8- 1.2- 970810 118 0.9- 0.8- 971006 118 1.0+ 0.6+ 980205 046 0.4- 1.5- 970810 118 1.4- 0.9- 971006 118 1.1+ 0.5+ 980205 046 0.1- 1.3- 970810 118 1.3- 1.0- 971013 118 0.5+ 1.1+ 980205 046 0.2+ 1.4- 970810 557 0.5- 0.9- 971013 118 0.7+ 0.4+ 980218 605 (3.8+ 0.4+) 970810 557 0.8- 0.8- 971013 118 0.3+ 0.9+ 980218 605 0.6+ 0.8- 970810 557 0.6- 0.8- 971016 118 (0.6+ 2.1+) 980218 605 (2.8+ 0.2+) 970811 402 0.5- 0.9- 971016 118 (1.0+ 2.1+) 980220 118 0.4+ 1.4- 970811 402 1.1- 1.1- 971017 118 0.9+ 1.5+ 980220 118 0.6+ 1.5- 970811 402 0.6- 1.0- 971017 118 0.5+ 1.3+ 980222 118 0.9+ 1.9- 970814 118 0.5- 0.5- 971017 118 0.7+ 1.2+ 980227 118 0.7+ 0.9- 970815 118 0.8- 1.0- 971017 046 0.7+ 1.6+ 980227 118 1.6+ 1.5- 970815 118 0.4- 0.9- 971017 046 1.0+ 1.4+ 980302 897 (3.7+ 0.3-) 970817 402 0.6- 0.6- 971017 046 0.7+ 1.8+ 980302 897 1.8+ 1.8- 970817 402 0.5- 0.8- 971018 108 (0.6- 3.4+) 980302 897 1.2+ 0.5- 970819 118 0.3+ 0.5- 971018 108 (0.5- 2.5+) 980302 360 0.3+ 1.5- 970819 118 0.9+ 0.7- 971018 108 0.0 0.1- 980302 897 (3.7+ 0.2+) 970821 118 0.9- 1.2- 971018 118 1.0+ 1.1+ 980302 360 0.3- 1.8- 970821 118 0.7- 1.2- 971018 118 1.1+ 1.2+ 980309 046 1.0+ 1.8- 970822 118 0.1- 0.4- 971018 108 1.4+ 1.9+ 980309 046 (0.4+ 2.0-) 970822 118 0.2- 0.5- 971018 605 0.6+ 1.8+ 980309 046 (0.6+ 3.0-) 970822 118 0.0 0.4- 971018 605 1.3+ 1.4+ 980311 118 0.6+ 1.3- 970823 108 0.0 0.1- 971019 118 0.5+ 0.9+ 980311 118 1.2+ 1.6- 970823 108 0.4+ 0.2+ 971019 118 0.9+ 1.0+ 980318 360 (0.1- 2.4-) 970823 108 0.2+ 0.3+ 971022 360 0.4+ 1.2+ 980318 360 (0.3- 2.5-) 970824 402 0.2- 1.1- 971022 360 0.1+ 1.2+ 980322 118 1.4+ 1.9- 970824 402 0.0 0.4- 971022 118 1.0+ 0.9+ 980322 118 (1.0+ 2.5-) 970824 402 0.0 0.5- 971022 118 0.5+ 1.5+ 2003/ 970824 118 0.2- 0.8- 971023 867 0.2+ 1.1+ 030831 291 (6.3- 1.9+) 970824 118 0.5- 0.7- 971023 867 0.1+ 1.0+ 030831 291 (6.1- 1.8+) 970824 118 0.4- 0.8- 971023 867 0.3+ 1.0+ 030831 291 (6.2- 0.7+) 970825 118 1.1- 0.9- 971026 897 1.4+ 0.5+ 030921 291 (5.6- 1.5+) 970825 118 1.1- 0.8- 971026 897 1.2+ 1.0+ 030921 291 (5.5- 1.7+) 970826 360 0.1- 0.1- 971026 897 0.8+ 1.0+ 030921 291 (4.9- 1.4+) 970826 360 0.4- 0.1- 971027 605 1.3+ 1.0+ 030928 291 (4.6- 1.7+) 970827 118 1.0- 0.7- 971027 605 1.3+ 0.4+ 030928 291 (5.1- 1.9+) 970827 118 1.1- 0.9- 971027 605 0.7+ 0.3+ 030928 291 (4.9- 1.1+) 970827 118 1.1- 0.6- 971028 352 1.0+ 0.8+ 031117 360 1.3- 0.9+ 970827 118 1.4- 0.8- 971028 352 0.7+ 0.8+ 031117 360 0.9- 1.8+ 970828 352 0.7- 1.0- 971028 352 1.7+ 0.8+ 031117 360 1.9- 1.2+ 970828 352 1.1- 1.0- 971029 402 0.5+ 1.1+ 031123 360 (2.1- 2.0+) 970828 352 1.4- 0.7- 971029 402 0.6+ 1.0+ 031123 360 (2.9- 0.8+) 970828 360 0.0 0.1- 971029 402 0.6+ 1.1+ 031123 360 1.0- 1.4+ 970828 360 0.1- 0.1- 971030 504 0.8+ 1.0+ 031208 204 (0.7+ 2.2+) 970828 867 0.4- 0.5- 971030 504 0.5+ 1.1+ 031208 204 0.7- 1.2+ 970828 867 0.7- 0.8- 971030 504 0.4+ 1.2+ 031214 360 0.8+ 0.8+ 970831 118 1.1- 1.3- 971030 504 0.1+ 0.7+ 031214 360 0.5+ 1.0+ 970831 118 1.0- 1.4- 971030 504 0.3+ 0.8+ 031214 360 1.1- 1.5+ 970831 605 0.7- 1.4- 971030 504 0.2+ 1.2+ 2004/ 970831 605 0.9- 1.3- 971030 504 0.1+ 1.0+ 040105 204 1.9+ 1.6+ 970901 605 0.8- 1.6- 971030 504 0.3+ 1.0+ 040218 A33 (3.2+ 1.4-) 970901 605 1.2- 1.1- 971030 504 0.2+ 1.2+ 040220 A33 (5.1+ 0.3-) 970901 118 0.1- 0.7- 971031 605 1.2+ 0.4+ 2005/ 970901 118 0.3- 0.4- 971031 605 1.7+ 0.4+ 050211 568 (3.7- 4.6+) 970902 897 0.7- 0.5- 971031 605 0.4+ 0.9+ 050211 568 (3.6- 4.8+) 970902 897 0.5- 0.8- 971103 402 0.1+ 0.4+ 050211 568 (3.8- 4.5+) 970903 118 0.0 0.3- 971103 402 0.0 0.4+ 2016/ 970903 118 0.0 0.4- 971104 900 0.4- 0.6+ 160103 G40 (5.2- 1.7-) 970903 118 0.1- 0.6- 971104 900 0.1+ 1.1+ 160103 G40 (5.3- 1.2-) 970903 118 0.1- 0.5- 971104 046 0.2- 0.6+ 160103 G40 (5.9- 2.0-) 970904 118 0.3- 0.8- 971104 046 0.3- 0.3+ 160104 G40 1.4- 0.1- 970904 118 0.3- 0.6- 971104 046 0.1+ 0.5+ 160104 G40 1.0- 0.3- 970905 118 0.4+ 0.8- 971105 360 0.3- 0.3+ 160104 G40 0.0 0.4+ 970905 118 0.4+ 0.7- 971105 360 0.1- 0.4+ 160107 G40 0.8- 0.1- 970905 118 0.3+ 0.7- 971105 402 0.2- 0.4+ 160107 G40 0.2- 0.0 970906 605 0.4- 0.6- 971105 402 0.2+ 0.4+ 160107 G40 0.7+ 0.6- 970906 605 0.7+ 0.9+ 971105 402 0.3- 0.4+ 160110 G40 0.1+ 0.3- 970906 605 0.4- 0.8- 971106 897 0.6- 0.6+ 160110 G40 1.0+ 0.1- 970907 118 0.3+ 0.6- 971106 897 0.5+ 0.8+ 160110 G40 1.0+ 0.3+ 970907 118 0.4+ 0.5- 971109 352 0.7+ 1.8+ 160110 G40 0.2+ 0.1- 970909 360 0.5+ 0.2- 971109 352 0.3+ 0.1- 160110 G40 0.4+ 0.2- 970909 360 0.4+ 0.2- 971109 352 0.6+ 1.0+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2016 Jan. 30