Nakano Note (Nakano wa Kangaeru noda) NK 3855 C/2018 R3 (Lemmon)
The following improved orbital elements, by S. Nakano, are from 208 observations 2018 Aug. 8 to 2019 July 4. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.60 arc second. Residuals on 2019 June/July observations were +4" for Right Ascension and -5" for Declination from a recent orbit in NK 3822. J. J. Gonzalez gives m1= 9.5 on 2019 June 26 and m1= 9.3 on July 5 UT, which is mag.= 4.5 brighter than a predicted mag. in HICQ 2019. Epoch = 2019 June 6.0 TT T = 2019 June 7.19975 +/- 0.00016 (m.e.) TT Peri. = 112.87772 +/- 0.00014 Node = 324.62539 +/- 0.00002 (2000.0) Inc. = 69.71533 +/- 0.00004 q = 1.2905814 +/- 0.0000019 AU e = 0.9993185 +/- 0.0000040 1/a = +0.0005281 +/- 0.0000031 1/AU origin = +0.000630 (Q= 8) future = +0.000701 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2018/ 180915 K88 0.3- 0.6+ 190515 Z80 1.2- 0.4+ 180808 F51 0.1+ 0.1- 180915 K88 0.9- 0.3- 190515 Z80 0.2- 0.6- 180808 F51 0.3- 0.5- 180916 I52 0.3+ 0.2+ 190515 Z80 0.7- 0.0 180808 F51 0.1- 0.2- 180916 I52 0.2- 0.3+ 190515 Z80 0.4- 0.1- 180808 F51 0.1- 0.2- 180916 I52 0.2- 0.3+ 190515 Z80 1.7- 0.1+ 180813 F51 0.1- 0.2- 180917 215 0.3- 0.1+ 190515 Z80 1.0- 0.2+ 180907 G96 0.3- 0.4- 180917 215 0.0 0.3+ 190516 A77 (2.1- 2.3+) 180907 G96 0.0 0.3+ 180917 215 0.4+ 0.8+ 190516 A77 1.2+ 0.5- 180907 G96 0.2+ 0.2- 180927 Q11 0.7+ 0.8+ 190516 A77 1.0+ 0.3- 180907 G96 0.3+ 0.2- 180927 Q11 1.1+ 1.0+ 190519 349 1.0- 0.2+ 180907 G96 1.3+ 0.1- 181001 372 1.7+ 0.8+ 190519 349 0.7- 0.4+ 180907 G96 0.3- 0.0 181001 372 1.8+ 0.8+ 190520 A98 1.0+ 0.7+ 180907 G96 0.4- 0.8- 181007 Q11 1.3+ 0.7+ 190520 A98 0.6+ 0.3- 180907 474 0.3- 0.1- 181007 Q11 1.2+ 0.6+ 190520 A98 0.3+ 0.2+ 180907 474 0.2+ 0.2- 181008 461 1.0- 0.3+ 190520 A98 0.9+ 0.6+ 180907 474 0.1- 0.1- 181008 461 0.5- 0.7+ 190520 A98 1.2+ 0.9- 180907 474 0.1+ 0.1- 181009 585 (2.4+ 1.4-) 190520 A98 1.0+ 0.1- 180908 I52 0.2+ 0.2- 181009 585 (2.6+ 1.3-) 190520 A98 0.5+ 0.6- 180908 I52 0.8+ 0.5- 181009 585 (2.2+ 0.8-) 190522 367 0.2- 0.4- 180908 I52 0.1- 0.5+ 181009 585 (2.2+ 2.3-) 190522 367 0.5- 0.3- 180908 I52 0.2- 0.1+ 181009 585 0.4+ 0.9- 190522 372 0.2- 0.2- 180908 474 0.1- 0.1- 181010 J22 1.6+ 0.8- 190522 367 0.0 0.0 180908 474 0.1+ 0.2- 181010 J22 1.2+ 0.9- 190522 372 0.1- 0.3- 180908 474 0.5- 0.0 181010 J22 1.2+ 0.7- 190524 A71 0.6- 0.7- 180908 Q62 0.2- 0.2- 181103 F52 0.5- 0.3+ 190524 A71 1.0- 0.1- 180908 Q62 0.3- 0.1+ 181103 F52 0.4- 0.2+ 190524 A71 0.2- 0.4- 180908 Q62 0.4- 0.1- 181103 F52 0.0 0.5+ 190524 A71 1.2- 0.3+ 180908 L01 0.2- 0.6+ 181103 F52 0.4- 0.0 190526 349 1.1- 0.3+ 180908 L01 0.2- 0.1- 181111 Q11 0.0 0.1- 190526 349 0.8- 0.1+ 180909 I52 0.1+ 0.0 181111 Q11 0.2+ 0.1- 190526 349 0.7- 0.1- 180909 I52 0.1+ 0.0 2019/ 190530 A77 0.5+ 0.4- 180909 I52 0.2- 0.4+ 190330 213 0.2- 0.3+ 190530 A77 0.5+ 0.3- 180909 I52 0.3- 0.7- 190330 213 0.2- 0.7+ 190530 A77 0.4+ 0.4- 180910 I52 0.4+ 0.7- 190330 213 0.5+ 0.6+ 190530 G40 0.1- 0.1+ 180910 I52 0.2- 0.0 190403 H06 0.9+ 0.7+ 190530 G40 0.2+ 0.8- 180910 I52 0.3- 0.4+ 190403 H06 0.6+ 0.2+ 190530 C36 0.6+ 1.2+ 180910 L27 0.5+ 0.6- 190406 D95 0.6+ 0.1+ 190530 C36 1.1+ 0.2- 180910 L27 0.5+ 0.3- 190406 D95 1.4+ 1.1- 190530 C36 0.8+ 0.3- 180910 L27 0.5+ 0.0 190407 K77 (3.3+ 3.5-) 190530 C36 (2.1+ 0.1+) 180910 G40 0.0 0.7+ 190407 K77 0.4+ 1.7+ 190530 C36 1.4+ 0.3+ 180910 G40 0.0 0.7+ 190409 H06 0.7+ 0.1+ 190530 C36 (2.6+ 0.5-) 180911 I52 0.2+ 0.5- 190409 H06 0.3+ 0.1- 190530 C36 (2.6+ 0.2-) 180911 I52 0.2+ 0.9- 190411 G40 0.3+ 0.5- 190530 C36 (3.2+ 0.4+) 180911 I52 0.4- 0.0 190411 G40 0.3+ 0.2- 190531 A98 1.0+ 0.1+ 180911 I52 0.3- 0.1- 190412 D95 0.5- 0.1- 190531 A98 0.5+ 0.3+ 180911 595 0.0 0.3+ 190412 D95 0.4- 0.2- 190531 A98 0.6+ 0.3- 180911 595 0.8+ 0.1- 190412 D95 0.7- 0.2- 190531 A98 0.4+ 0.8+ 180911 104 1.2- 0.3- 190412 349 0.8- 0.0 190531 A98 0.0 0.5- 180911 104 0.5+ 0.2+ 190412 349 0.4- 0.5+ 190531 A98 0.1+ 0.3- 180912 A71 0.6- 0.0 190413 I81 0.3+ 0.3- 190531 A98 1.0+ 0.2+ 180912 A71 0.6+ 0.2+ 190413 I81 0.3+ 0.2- 190531 A98 0.6+ 0.3- 180912 A71 0.1- 0.3- 190413 I81 0.2+ 0.7- 190531 A98 0.3+ 0.2+ 180913 926 0.0 0.1+ 190421 C10 0.8- 0.1+ 190531 A98 0.5+ 0.1+ 180913 926 0.5+ 0.7+ 190421 C10 0.8- 0.0 190531 A98 0.1- 0.0 180913 926 0.3- 0.9+ 190501 H06 0.5- 0.8- 190531 A98 0.9+ 0.5+ 180913 926 1.0+ 0.7+ 190501 H06 0.5- 0.7- 190531 A98 0.9+ 0.2+ 180913 926 0.7+ 0.0 190501 H06 0.3- 0.6- 190602 A77 0.1+ 0.8- 180913 926 0.6- 0.4+ 190502 367 0.8- 0.1- 190602 A77 0.5+ 0.5- 180913 I52 0.1- 0.2+ 190502 367 0.1- 0.5- 190602 A77 0.4- 0.1+ 180913 I52 0.1- 0.1+ 190503 349 1.0- 0.9- 190603 349 0.2- 0.5+ 180913 I52 0.3- 0.2+ 190503 349 1.5- 1.2- 190603 349 0.7- 0.8+ 180913 I52 0.5+ 0.3- 190504 G40 0.2- 1.1- 190604 A77 0.5+ 0.2+ 180913 C95 0.4+ 0.7- 190504 G40 0.7+ 1.3- 190604 A77 0.3+ 0.1+ 180913 K63 (2.5+ 0.1-) 190504 G40 0.1+ 0.9- 190604 A77 0.4+ 0.2- 180913 K63 1.5+ 0.6+ 190504 G40 0.2- 0.9- 190616 349 0.2- 0.8+ 180913 K63 1.1+ 1.8+ 190513 C36 (2.6+ 0.5+) 190616 349 0.1+ 0.4+ 180913 C95 1.6+ 0.5- 190513 C36 1.8+ 0.2- 190616 C10 0.7- 0.1+ 180915 711 0.1- 0.6- 190513 C36 (2.4+ 0.8+) 190616 C10 0.1- 0.4+ 180915 711 0.5- 0.6- 190513 C36 (2.0+ 0.9+) 190616 C10 0.3- 0.2+ 180915 711 0.8- 0.6- 190513 C36 1.4+ 0.3+ 190625 367 0.2- 0.2+ 180915 I52 0.2+ 0.4+ 190513 C36 (2.4+ 0.8+) 190625 367 0.2+ 0.4+ 180915 I52 0.8+ 0.4+ 190513 C36 1.7+ 0.2+ 190625 367 0.1+ 0.1- 180915 691 0.1+ 0.1+ 190515 Z80 1.0- 0.1+ 190704 367 0.4+ 0.0 180915 I52 0.5+ 0.5+ 190515 Z80 0.8- 0.4+ 190704 367 1.1+ 0.7+ 180915 691 (2.0+ 0.2-) 190515 Z80 1.8- 0.1- 180915 691 0.4- 0.3+ 190515 Z80 0.5+ 0.0 ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2019 July 7