Nakano Note (Nakano wa Kangaeru noda) NK 1932 Return of SOHO Comets in 2013

The following SOHO Comets will return in 2013. C/2002 R4 = 2007 Y4 (SOHO) T = 2013 Apr. 13.54492 TT Epoch = 2013 Apr. 18.0 TT Peri. = 22.82128 e = 0.9834138 Node = 81.83021 (2000.0) a = 3.0436235 AU Inc. = 28.19765 n'= 0.18561697 q = 0.0504821 AU P = 5.310 years (+/- 0.85 day) From 29 observations 2002-2007, mean residual 9".76. P/2002 R1 = 2008 A3 (SOHO) T = 2013 June 1.11273 TT Epoch = 2013 May 28.0 TT Peri. = 34.36709 e = 0.9840422 Node = 69.49538 (2000.0) a = 3.0682338 AU Inc. = 22.11436 n'= 0.18338820 q = 0.0489623 AU P = 5.374 years (+/- 1.21 days) From 43 observations 2002-2008, mean residual 9".30. P/2002 Q8 = 2008 E4 (SOHO) T = 2013 Sept.10.53268 TT Epoch = 2013 Sept.25.0 TT Peri. = 48.79367 e = 0.9836398 Node = 54.54713 (2000.0) a = 3.1237768 AU Inc. = 12.70775 n'= 0.17851885 q = 0.0511056 AU P = 5.521 years (+/- 2.79 days) From 24 observations 2002-2008, mean residual 8".46. P/2002 S11 = 2008 G6 (SOHO) T = 2013 Oct. 26.90359 TT Epoch = 2013 Nov. 4.0 TT Peri. = 52.49177 e = 0.9846342 Node = 49.88734 (2000.0) a = 3.1291202 AU Inc. = 13.49398 n'= 0.17806177 q = 0.0480816 AU P = 5.535 years (+/- 0.29 day) From 35 observations 2002-2008, mean residual 8".98.

Associate of Central Bureau for Astronomical Telegrams Syuichi Nakano 2010 Apr. 29

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