Nakano Note (Nakano wa Kangaeru noda) NK 3794 P/Scotti (2003 L1 = 2019 E1)
The following improved orbital elements, by S. Nakano, are from 77 observations 2002 to 2019. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.43 arc second. Residuals for the recovery observations were -60" for Right Ascension and +18" for Declination from the prediction in NK 973 (= HICQ 2017/2018 /2019) with the delta-T correction = +0.17 day. Epoch = 2020 July 10.0 TT T = 2020 July 11.26238 +/- 0.13219 (m.e.) TT Peri. = 354.96656 +/- 0.01216 Node = 226.05926 +/- 0.00015 (2000.0) Inc. = 9.02206 +/- 0.00004 q = 5.0167326 +/- 0.0000581 AU e = 0.2527370 +/- 0.0000094 a = 6.7134764 +/- 0.0001148 AU n' = 0.05666082 +/- 0.00000145 P = 17.395 +/- 0.0004460 years (+/- 0.16 day) T = 2003 Mar. 7.33183 TT Epoch = 2003 Mar. 22.0 TT Peri. = 355.15955 e = 0.2519855 Node = 226.03827 (2000.0) a = 6.6975876 AU Inc. = 9.02429 n'= 0.05686257 q = 5.0098926 AU P = 17.333 years The predicted orbit for the 2038 return is as follows: T = 2038 Apr. 24.17631 TT Epoch = 2038 Apr. 7.0 TT Peri. = 0.84133 e = 0.2362686 Node = 223.89749 (2000.0) a = 6.7685790 AU Inc. = 9.26143 n'= 0.05597032 q = 5.1693763 AU P = 17.609 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2002/ 030605 291 0.3- 0.1- 030608 291 0.7- 0.3+ 020405 644 0.5+ 0.1- 030606 G90 0.6+ 0.4- 030608 291 0.3- 0.4+ 020405 644 0.2+ 0.5- 030606 G90 0.2- 0.1- 030608 926 1.1+ 0.2- 020414 644 0.3+ 0.4+ 030606 G90 0.1- 0.5+ 030608 926 0.7- 0.2+ 020414 644 1.1- 0.1+ 030606 291 0.5- 0.0 030608 926 0.8+ 0.1- 020430 644 0.2+ 0.4- 030606 926 0.3- 0.1- 030608 673 0.5+ 0.1+ 020430 644 1.1+ 1.1+ 030606 926 0.1- 0.0 030608 673 0.7+ 0.0 020430 644 0.8- 0.8+ 030606 291 0.2- 0.1+ 030608 673 0.6+ 0.2- 2003/ 030606 926 0.2- 0.3- 030608 673 0.3+ 0.1+ 030429 608 0.2- 0.1+ 030606 291 0.2- 0.1+ 030608 673 0.2+ 0.0 030429 608 0.1+ 1.1- 030606 651 0.7- 0.2+ 030608 673 0.3+ 0.1- 030429 608 0.6+ 0.7- 030606 651 1.1- 0.3- 030618 620 0.6- 0.0 030604 691 0.5- 0.0 030606 651 0.0 0.1- 030618 620 0.5- 0.2+ 030604 691 0.6- 0.1- 030607 673 0.5+ 0.0 030618 620 0.3+ 0.1+ 030604 691 0.8- 0.1+ 030607 673 0.2+ 0.2+ 030620 360 0.3- 0.1+ 030604 474 0.7- 0.9- 030607 291 0.0 0.2+ 030620 360 0.1- 0.4+ 030604 474 0.5+ 0.7+ 030607 673 0.2+ 0.3+ 030620 360 0.1- 0.3+ 030604 474 0.3+ 0.4- 030607 926 0.0 0.6- 2019/ 030604 474 0.1- 1.2- 030607 291 0.3+ 0.9+ 190309 J04 0.0 0.1- 030604 474 0.1+ 0.0 030607 291 0.8+ 0.7+ 190309 J04 0.0 0.2- 030604 474 0.2+ 0.0 030607 673 0.2+ 0.3+ 190309 J04 0.3- 0.2- 030604 474 0.3+ 0.3+ 030607 926 0.4- 0.3- 190310 J04 0.2+ 0.5- 030605 G90 0.3+ 0.1- 030607 620 0.2- 0.3- 190310 J04 0.4+ 0.2- 030605 G90 0.6- 0.2- 030608 673 0.3+ 0.5+ 190310 J04 0.1+ 0.3- 030605 G90 0.5+ 0.0 030608 673 0.4+ 0.1+ 190330 Q62 0.2- 0.4+ 030605 291 0.4- 0.2- 030608 673 0.5+ 0.0 190330 Q62 0.5- 0.2+ 030605 291 0.2+ 0.2- 030608 291 0.0 0.2+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2019 Apr. 3