Nakano Note (Nakano wa Kangaeru noda) NK 3440
Epoch changed orbits from the previous NKs
(These are not published in NKs yet) 101P/Chernykh - B T = 2020 Jan. 10.21011 TT Epoch = 2019 Dec. 23.0 TT Peri. = 277.64624 e = 0.5955212 Node = 116.26037 (2000.0) a = 5.7949194 AU Inc. = 5.05220 n'= 0.07065339 q = 2.3439220 AU P = 13.950 years A1 = +0.905 A2 = -0.10082 A3 = -0.092 From NK 1298B orbit using 327 observations 1977-2006, mean residual 1".06. 101P/Chernykh - A T = 2020 Jan. 13.24958 TT Epoch = 2020 Feb. 1.0 TT Peri. = 277.69843 e = 0.5954866 Node = 116.22734 (2000.0) a = 5.7975247 AU Inc. = 5.05250 n'= 0.07060576 q = 2.3451766 AU P = 13.959 years A1 = +0.807 A2 = +0.10242 A3 = -0.660 From NK 1298 orbit using 733 observations 1977-2006, mean residual 0".87. C/2002 S5 = 1996 X5 (SOHO) T = 2020 Jan. 16.94889 TT Epoch = 2020 Feb. 1.0 TT Peri. = 52.97955 e = 0.9851965 Node = 49.26343 (2000.0) a = 3.2179960 AU Inc. = 13.33100 n'= 0.17073629 q = 0.0476377 AU P = 5.773 years From NK 2164 orbit using 22 observations 1996-2002. 321P/SOHO T = 2020 Jan. 17.25096 TT Epoch = 2020 Feb. 1.0 TT Peri. = 172.72038 e = 0.9810609 Node = 165.04983 (2000.0) a = 2.4229601 AU Inc. = 20.04309 n'= 0.26132723 q = 0.0458886 AU P = 3.772 years From NK 3009 orbit using 83 observations 1997-2012, mean residual 11".7. C/2002 S7 = 2008 N4 (SOHO) T = 2020 Jan. 24.82849 TT Epoch = 2020 Feb. 1.0 TT Peri. = 53.68345 e = 0.9852033 Node = 48.75238 (2000.0) a = 3.2198141 AU Inc. = 13.30005 n'= 0.17059169 q = 0.0476425 AU P = 5.778 years From NK 2164 orbit using 19 observations 2002-2008, mean residual 5".94. C/2002 S5 = 2008 N4 (SOHO) T = 2020 Jan. 28.25684 TT Epoch = 2020 Feb. 1.0 TT Peri. = 53.63530 e = 0.9852266 Node = 48.75598 (2000.0) a = 3.2214640 AU Inc. = 13.35330 n'= 0.17046065 q = 0.0475920 AU P = 5.782 years From NK 2164 orbit using 26 observations 2002-2008. P/2005 T2 (Christensen) T = 2020 Apr. 8.53632 TT Epoch = 2020 Apr. 21.0 TT Peri. = 58.79981 e = 0.4166684 Node = 260.15923 (2000.0) a = 3.8473081 AU Inc. = 8.29293 n'= 0.13060765 q = 2.2442563 AU P = 7.546 years From NK 1398 orbit using 69 observations 2005 Oct. 7-Nov. 25, mean residual 0".62. D/1766 G1 (Helfenzrieder) T = 2020 May 4.72472 TT Epoch = 2020 Apr. 21.0 TT Peri. = 175.83500 e = 0.8524496 Node = 93.40168 (2000.0) a = 2.7233204 AU Inc. = 8.83692 n'= 0.21930875 q = 0.4018271 AU P = 4.494 years From QJ 26, Vol. 85 orbit by Yeomans (NK 1621, NK 2327) uring 22 observations 1766 Apr. 9-May 3. 58P/Jackson-Neujmin T = 2020 May 25.06490 TT Epoch = 2020 May 31.0 TT Peri. = 200.46451 e = 0.6624992 Node = 159.06385 (2000.0) a = 4.0816167 AU Inc. = 13.10170 n'= 0.11952417 q = 1.3775488 AU P = 8.246 years A1 = +0.299 A2 = -0.01507 From NK 778 orbit using 321 observations 1970-1996, mean residual 0".76. D/1894 F1 (Denning) T = 2020 June 5.27625 TT Epoch = 2020 May 31.0 TT Peri. = 209.97231 e = 0.6634624 Node = 287.18158 (2000.0) a = 4.0478197 AU Inc. = 7.65378 n'= 0.12102423 q = 1.3622437 AU P = 8.144 years From NK 1781 orbit by Green using 36 observations 1894 Mar. 27-June 5, mean residual 0".81. 85D/Boethin T = 2020 July 29.49712 TT Epoch = 2020 July 10.0 TT Peri. = 65.30534 e = 0.7758325 Node = 333.02034 (2000.0) a = 5.0362251 AU Inc. = 4.17357 n'= 0.08720600 q = 1.1289580 AU P = 11.302 years From NK 1210 orbit using 52 observations 1975-1986, mean residual 1".36. C/2002 S4 = 2008 R7 (SOHO) T = 2020 Aug. 6.05172 TT Epoch = 2020 Aug. 19.0 TT Peri. = 54.37371 e = 0.9858186 Node = 48.10298 (2000.0) a = 3.2819520 AU Inc. = 13.22499 n'= 0.16576993 q = 0.0465427 AU P = 5.946 years From NK 2164 orbit using 75 observations 2002-2008, mean residual 5".49. D/1884 O1 (Barnard 1) T = 2020 Aug. 8.57741 TT Epoch = 2020 Aug. 19.0 TT Peri. = 339.77112 e = 0.5722798 Node = 332.88163 (2000.0) a = 3.0814828 AU Inc. = 9.31334 n'= 0.18220675 q = 1.3180124 AU P = 5.409 years From NK 2327 orbit by Buckley using 179 observations 1884 Aug. 24-Nov. 8, mean residual 3".25. P/2007 R2 (Gibbs) T = 2020 Sept.15.61536 TT Epoch = 2020 Sept.28.0 TT Peri. = 352.35039 e = 0.5418192 Node = 11.48451 (2000.0) a = 3.5732264 AU Inc. = 1.21286 n'= 0.14591948 q = 1.6371837 AU P = 6.754 years From NK 2063 orbit using 161 observations 2007 Sept. 10-Dec. 1, mean residual 0".71. D/1886 K1 (Brooks 1) T = 2020 Oct. 9.09896 TT Epoch = 2020 Sept.28.0 TT Peri. = 192.81432 e = 0.5745273 Node = 44.88226 (2000.0) a = 3.1930394 AU Inc. = 10.87581 n'= 0.17274189 q = 1.3585510 AU P = 5.706 years From NK 2327 orbit by Oppenheim using 42 observations 1886 May 25-July 3. P/2009 WX51 (Catalina) T = 2020 Nov. 16.29936 TT Epoch = 2020 Nov. 7.0 TT Peri. = 118.06479 e = 0.7402444 Node = 31.68567 (2000.0) a = 3.0798135 AU Inc. = 9.59516 n'= 0.18235491 q = 0.7999989 AU P = 5.405 years From NK 2308 orbit using 113 observations 2009 Nov. 22-2010 Apr. 17, mean residual 0".43. P/2010 B2 (WISE) T = 2020 Dec. 4.89706 TT Epoch = 2020 Dec. 17.0 TT Peri. = 155.91843 e = 0.4799144 Node = 0.84791 (2000.0) a = 3.1100657 AU Inc. = 8.93069 n'= 0.17970068 q = 1.6175004 AU P = 5.485 years From NK 2305 orbit using 48 observations 2010 Jan. 22-Apr. 7, mean residual 0".38. P/2009 Q4 (Boattini) T = 2020 Dec. 26.96419 TT Epoch = 2020 Dec. 17.0 TT Peri. = 320.23610 e = 0.5826087 Node = 127.46358 (2000.0) a = 3.1281779 AU Inc. = 11.01546 n'= 0.17814224 q = 1.3056743 AU P = 5.533 years From NK 1988 orbit using 756 observations 2009 Aug. 26-2010 May 28, mean residual 0".59.
Associate of the CBAT Syuichi Nakano 2017 Sept. 29