Nakano Note (Nakano wa Kangaeru noda) NK 2889

Return Comets in 2019 (Expanded from past predictions)

The following comets will return in 2019. But some predictions are uncertainty. P/1996 R2 (Lagerkvist) T = 2019 Feb. 11.45456 TT Epoch = 2019 Feb. 6.0 TT Peri. = 333.28701 e = 0.3134621 Node = 40.05084 (2000.0) a = 3.7729568 AU Inc. = 2.60090 n'= 0.13448732 q = 2.5902777 AU P = 7.329 years From an orbit in NK 1615, 125 observations 1996 Aug. 12-1997 Jan. 12, mean residual 0".62. C/2002 Q8 = 2008 E4 (SOHO) T = 2019 Mar. 22.02682 TT Epoch = 2019 Mar. 18.0 TT Peri. = 49.24137 e = 0.9834880 Node = 54.10585 (2000.0) a = 3.1270607 AU Inc. = 12.61936 n'= 0.17823772 q = 0.0516341 AU P = 5.530 years From an orbit in NK 1932, 24 observations 2002-2008, mean residual 8".46. C/2002 S11 = 2008 G6 (SOHO) T = 2019 May 12.50069 TT Epoch = 2019 Apr. 27.0 TT Peri. = 53.00533 e = 0.9845043 Node = 49.38234 (2000.0) a = 3.1326409 AU Inc. = 13.40176 n'= 0.17776168 q = 0.0485425 AU P = 5.545 years From an orbit in NK 1932, 35 observations 2002-2008, mean residual 8".98. P/2000 R2 (LINEAR) T = 2019 June 17.30053 TT Epoch = 2019 June 6.0 TT Peri. = 176.46309 e = 0.5313630 Node = 160.31020 (2000.0) a = 3.4640662 AU Inc. = 11.68352 n'= 0.15287089 q = 1.6233897 AU P = 6.447 years From an orbit in NK 744, 54 observations 2000 Sept. 3-Nov. 29, mean residual 0".64. P/1999 RO28 (LONEOS) T = 2019 June 26.02028 TT Epoch = 2019 July 16.0 TT Peri. = 231.28101 e = 0.6718128 Node = 137.88469 (2000.0) a = 3.4262909 AU Inc. = 7.56501 n'= 0.15540598 q = 1.1244647 AU P = 6.342 years From an orbit in NK 731, 104 observations 1999 Sept. 7-1999 Nov. 13, mean residual 0".78. C/2003 Q1 = 2008 X6 (SOHO) T = 2019 July 3.01623 TT Epoch = 2019 July 16.0 TT Peri. = 26.19672 e = 0.9849906 Node = 78.40724 (2000.0) a = 3.0333707 AU Inc. = 24.32527 n'= 0.18655884 q = 0.0455292 AU P = 5.283 years From 15 observations 2003-2008, Prediction from Brian's orbit on MPEC F81 (2009). 3D/Biela-B T = 2019 July 12.13834 TT Epoch = 2019 July 16.0 TT Peri. = 272.78960 e = 0.7652964 Node = 195.41179 (2000.0) a = 3.5745538 AU Inc. = 7.48099 n'= 0.14583821 q = 0.8389608 AU P = 6.758 years A1 = +1.043 A2 = +0.03315 From an orbit in NK 851B, 26 observations 1832-1852, mean residual 2".09. P/2006 F4 (Spacewatch) T = 2019 Aug. 2.50276 TT Epoch = 2019 July 16.0 TT Peri. = 31.18720 e = 0.3380985 Node = 184.03051 (2000.0) a = 3.5258214 AU Inc. = 12.38762 n'= 0.14887220 q = 2.3337463 AU P = 6.620 years From an orbit in NK 1779, 46 observations 2006 Mar. 26-May 31, mean residual 0".68. C/2003 Q6 = 2008 Y11 (SOHO) T = 2019 Aug. 4.34191 TT Epoch = 2019 July 16.0 TT Peri. = 24.94657 e = 0.9851795 Node = 78.43072 (2000.0) a = 3.0431542 AU Inc. = 24.29814 n'= 0.18565991 q = 0.0451011 AU P = 5.309 years From an orbit in NK 2164, 23 observations 2003-2008, Prediction from Brian's orbit on MPEC F81 (2009). 25D/Neujmin 2 T = 2019 Aug. 18.44893 TT Epoch = 2019 Aug. 25.0 TT Peri. = 215.23354 e = 0.5821446 Node = 307.54655 (2000.0) a = 3.0895090 AU Inc. = 5.31958 n'= 0.18149718 q = 1.2909679 AU P = 5.430 years From an orbit in NK 708, 108 observations 1916-1927, mean residual 2".09. P/2006 S1 (Christensen) T = 2019 Oct. 25.50334 TT Epoch = 2019 Nov. 13.0 TT Peri. = 133.62468 e = 0.5993855 Node = 207.88746 (2000.0) a = 3.5425533 AU Inc. = 12.32368 n'= 0.14781873 q = 1.4191983 AU P = 6.668 years From an orbit in NK 1920, 303 observations 2006 Aug. 23-2006 Dec. 16, mean residual 0".59. C/2002 R5 = 2008 L6 (SOHO) T = 2019 Dec. 12.65076 TT Epoch = 2019 Dec. 23.0 TT Peri. = 71.09590 e = 0.9864409 Node = 347.35630 (2000.0) a = 3.2007168 AU Inc. = 11.19704 n'= 0.17212074 q = 0.0433988 AU P = 5.726 years From an orbit in NK 2164, 43 observations 2002-2008, mean residual 5".35.

Associate of the CBAT Syuichi Nakano 2016 July 14

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