2017 October 15, 21:44:45 UT Orbit-1 Orbital elements: C/2017 S6 (Catalina) T 2018 Feb. 27.05378 TT Sato q 1.5433338 (2000.0) P Q Peri. 134.67510 +0.93835567 -0.00807119 Node 130.84425 -0.23763693 -0.74108182 e 1.0 Incl. 152.81814 +0.25103253 -0.67136621 From 59 observations 2017 Sept. 30-Oct. 7, mean residual 0".56. Residuals in seconds of arc 170930 703 0.2- 0.5+ 171001 A71 0.4- 0.5- 171003 G96 0.2- 0.8- 170930 703 0.2+ 0.2- 171001 118 0.5- 0.2+ 171003 G96 0.0 0.7- 170930 703 0.5- 1.2- 171001 118 0.3- 1.0+ 171003 G96 0.3+ 0.4- 170930 703 0.1+ 1.2- 171001 A71 0.5- 0.3+ 171003 G96 0.4- 0.4- 170930 703 0.4+ 0.7- 171001 926 0.4+ 0.6+ 171006 850 0.2+ 0.5- 170930 703 0.8- 0.4- 171001 926 0.0 0.0 171006 850 0.3+ 0.4- 170930 703 0.6- 0.6- 171001 926 0.5+ 0.1- 171006 850 0.3+ 0.2- 170930 703 0.2- 1.1- 171001 U69 0.1+ 0.3+ 171006 850 1.0- 0.0 170930 703 0.7+ 0.6- 171001 U69 0.3+ 0.6+ 171006 926 0.5- 1.1+ 170930 703 0.5+ 0.9- 171001 U69 0.4+ 0.6+ 171006 926 0.3+ 0.8+ 170930 703 0.4- 0.2+ 171002 K88 0.3- 0.3+ 171006 926 0.3- 0.5+ 170930 703 0.1+ 1.2+ 171002 K88 0.0 0.4+ 171006 595 0.7+ 0.7- 170930 900 0.7+ 0.2+ 171002 K88 0.2+ 0.4+ 171006 595 0.1+ 1.1- 170930 900 0.0 0.7+ 171002 K88 0.5- 0.4+ 171007 H01 0.3+ 0.1+ 171001 K88 0.3+ 0.1+ 171002 G96 0.4+ 1.3+ 171007 H01 0.1+ 0.2+ 171001 K88 0.6+ 0.8+ 171002 G96 0.2+ 0.2- 171007 H01 0.3+ 0.0 171001 K88 0.0 1.0+ 171002 G96 0.4- 0.7- 171007 H01 0.0 0.4+ 171001 K88 0.1+ 0.4+ 171002 G96 1.1- 0.0 171007 926 0.1+ 0.3- 171001 A71 0.3- 0.4- 171002 Z80 (2.4+ 2.1-) 171007 926 0.8- 0.4+ 171001 118 0.5- 0.6+ 171002 Z80 2.0+ 1.0- 171007 926 0.6- 0.1+ Orbit-2 Orbital elements: C/2017 S6 (Catalina) T 2018 Feb. 27.69747 TT Sato q 1.5403404 (2000.0) P Q z +0.0067372 Peri. 135.01416 +0.93842240 -0.01335374 Node 130.86573 -0.24154162 -0.73982113 e 0.9896224 Incl. 152.83799 +0.24702437 -0.67267107 From 59 observations 2017 Sept. 30-Oct. 7, mean residual 0".56. Residuals in seconds of arc 170930 703 0.2- 0.5+ 171001 A71 0.4- 0.5- 171003 G96 0.3- 0.9- 170930 703 0.2+ 0.2- 171001 118 0.5- 0.2+ 171003 G96 0.1- 0.8- 170930 703 0.4- 1.2- 171001 118 0.3- 1.0+ 171003 G96 0.2+ 0.4- 170930 703 0.1+ 1.2- 171001 A71 0.5- 0.3+ 171003 G96 0.4- 0.4- 170930 703 0.4+ 0.7- 171001 926 0.4+ 0.6+ 171006 850 0.2+ 0.5- 170930 703 0.7- 0.4- 171001 926 0.0 0.0 171006 850 0.3+ 0.5- 170930 703 0.5- 0.6- 171001 926 0.4+ 0.1- 171006 850 0.3+ 0.2- 170930 703 0.2- 1.1- 171001 U69 0.1+ 0.3+ 171006 850 1.0- 0.0 170930 703 0.7+ 0.5- 171001 U69 0.3+ 0.6+ 171006 926 0.5- 1.1+ 170930 703 0.5+ 0.9- 171001 U69 0.4+ 0.6+ 171006 926 0.3+ 0.8+ 170930 703 0.4- 0.2+ 171002 K88 0.3- 0.3+ 171006 926 0.3- 0.4+ 170930 703 0.1+ 1.2+ 171002 K88 0.0 0.4+ 171006 595 0.7+ 0.7- 170930 900 0.8+ 0.2+ 171002 K88 0.2+ 0.4+ 171006 595 0.2+ 1.1- 170930 900 0.1+ 0.7+ 171002 K88 0.5- 0.3+ 171007 H01 0.3+ 0.2+ 171001 K88 0.3+ 0.1+ 171002 G96 0.3+ 1.2+ 171007 H01 0.1+ 0.3+ 171001 K88 0.6+ 0.8+ 171002 G96 0.2+ 0.2- 171007 H01 0.4+ 0.0 171001 K88 0.0 1.0+ 171002 G96 0.5- 0.7- 171007 H01 0.0 0.4+ 171001 K88 0.1+ 0.4+ 171002 G96 1.2- 0.1- 171007 926 0.2+ 0.2- 171001 A71 0.3- 0.4- 171002 Z80 (2.4+ 2.2-) 171007 926 0.7- 0.4+ 171001 118 0.5- 0.6+ 171002 Z80 1.9+ 1.1- 171007 926 0.5- 0.1+ --