2019 September 23. 22:40:03 UT Orbital elements: C/2019 Q4 (Borisov) Epoch 2019 Dec. 23.0 TT = JDT 2458840.5 T 2019 Dec. 8.42276 TT Sato q 2.0119119 (2000.0) P Q z -1.1828236 Peri. 209.00308 -0.81489488 -0.19458815 +/-0.0104127 Node 308.19607 +0.56675013 -0.46482283 e 3.3797369 Incl. 44.00377 -0.12141098 -0.86375644 From 495 observations 2019 Aug. 30-Sept. 23, mean residual 0".63. Epoch 2019 Oct. 4.0 TT = JDT 2458760.5 T 2019 Dec. 8.42291 TT Sato q 2.0119071 (2000.0) P Q z -1.1828775 Peri. 209.00350 -0.81489771 -0.19458643 +/-0.0104127 Node 308.19601 +0.56674515 -0.46483104 e 3.3798397 Incl. 44.00335 -0.12141524 -0.86375241 Residuals in seconds of arc 190830 L51 0.9- 0.4+ 190912 A71 1.1- 1.2- 190917 850 0.4- 0.4+ 190830 L51 0.0 0.2- 190912 106 0.6- 0.6- 190917 850 0.2- 0.1+ 190830 L51 0.6- 0.3+ 190912 C95 0.3+ 0.5- 190917 850 0.5- 0.7+ 190831 L51 0.0 0.6- 190912 L06 0.0 0.1- 190917 850 0.2- 0.1+ 190831 L51 0.5+ 1.4- 190912 A71 1.6- 0.2- 190917 F51 0.0 0.3- 190831 L51 0.7- 0.3+ 190912 L06 0.1- 0.0 190918 C53 1.1+ 1.3- 190831 L51 0.4+ 0.7- 190912 L06 0.2+ 0.2+ 190918 C53 0.3+ 1.1- 190831 850 0.1+ 0.2+ 190912 L01 0.6- 0.2- 190918 C53 0.3+ 0.3- 190831 850 1.7- 0.9- 190912 L01 0.9- 0.3- 190918 A71 0.5- 0.0 190831 850 0.5+ 1.4+ 190912 C95 0.8- 0.3+ 190918 A71 0.2+ 0.1+ 190901 L51 0.5+ 0.3+ 190912 A77 1.1+ 0.9- 190918 J95 0.1- 0.4+ 190901 L51 0.4+ 0.6+ 190912 C95 0.4- 0.2- 190918 C23 0.7+ 0.3- 190901 L51 0.4+ 0.8+ 190912 A77 0.9+ 0.7- 190918 C53 (0.6+ 2.3-) 190901 L51 0.3+ 0.6- 190912 A77 1.2+ 0.6- 190918 A71 0.3+ 0.2+ 190901 595 0.1+ 0.2+ 190912 C65 0.0 0.3- 190918 J95 0.0 0.2+ 190901 595 0.2- 0.1- 190912 A77 0.4+ 0.8- 190918 C23 0.0 0.8- 190901 595 0.6- 0.9+ 190912 C65 0.1+ 0.3- 190918 A71 0.1+ 0.1+ 190901 850 0.1+ 1.1- 190912 C65 0.1+ 0.3- 190918 C23 0.1- 0.4+ 190901 850 (0.8- 2.5-) 190912 954 (0.9+ 4.0-) 190918 J95 0.3- 0.0 190901 H06 0.6- 0.2- 190912 954 (2.0+ 4.1-) 190918 A71 0.4+ 0.3+ 190901 H06 0.4- 0.2- 190912 954 (0.4+ 3.5-) 190918 C23 0.1+ 0.3+ 190901 186 0.1- 0.7+ 190912 954 1.4- 1.3- 190918 C65 0.7- 0.4+ 190901 186 0.4+ 0.0 190912 954 (4.2- 1.2+) 190918 J95 0.2- 0.0 190901 186 1.1- 0.1- 190912 850 0.1+ 1.2+ 190918 C23 0.0 0.1- 190902 L51 1.0+ 0.1- 190912 850 0.3- 0.2- 190918 C23 0.7+ 0.2- 190902 L51 0.0 0.4- 190912 850 0.3+ 0.7+ 190918 C65 0.3- 0.2- 190902 L51 0.0 0.5+ 190912 850 1.6+ 0.4+ 190918 J95 0.4- 0.4+ 190902 L51 0.6+ 0.1+ 190912 850 0.0 0.1+ 190918 C65 0.2- 0.2- 190902 L01 0.1- 0.4- 190912 850 0.1- 0.6+ 190918 I88 0.1- 0.3- 190902 L01 0.0 0.6+ 190912 H36 0.8- 0.5- 190918 I88 1.1+ 0.1+ 190902 L01 0.3- 0.3- 190912 H36 0.5- 0.8- 190918 I88 0.3+ 0.2- 190902 J95 0.2+ 0.3- 190912 H06 0.2- 0.1- 190918 850 0.5- 0.4+ 190902 J95 0.5- 0.0 190912 H06 0.4+ 0.4+ 190918 850 0.4+ 0.2+ 190902 850 (2.9- 3.7+) 190913 585 0.6+ 1.1+ 190918 850 0.1+ 0.3- 190902 850 0.3- 1.8- 190913 585 0.5+ 0.6- 190918 850 0.3+ 0.6+ 190903 L51 0.6- 1.0+ 190913 585 0.2- 0.5- 190918 850 0.8+ 0.3- 190903 L51 0.0 0.1- 190913 585 0.6+ 0.5- 190918 850 0.8+ 0.6- 190903 L51 0.3+ 0.2+ 190913 587 0.3- 0.2+ 190918 H36 0.6+ 0.3+ 190903 850 0.3- 0.2+ 190913 461 0.5+ 0.2- 190918 H36 0.4+ 0.2+ 190903 850 0.0 0.3+ 190913 461 0.2+ 0.1- 190918 H36 0.1- 0.6+ 190903 H06 0.1+ 0.5- 190913 204 0.2- 0.4+ 190918 H06 1.0- 0.0 190903 H06 0.4+ 1.1- 190913 587 0.0 0.2+ 190918 H06 0.1+ 0.5+ 190904 L51 0.2+ 0.4+ 190913 587 0.0 0.2+ 190918 U69 0.5- 0.6- 190904 L51 0.4+ 0.4+ 190913 461 0.2+ 0.3+ 190918 U69 0.4- 0.7+ 190904 L51 0.3+ 0.1- 190913 587 0.2+ 0.0 190918 U69 1.0+ 1.2- 190904 C10 0.2- 0.1- 190913 461 0.4+ 0.3+ 190918 U69 0.0 0.1+ 190904 C10 0.2+ 0.1+ 190913 204 0.2+ 0.3- 190918 C53 (2.1+ 1.7-) 190904 A71 0.3- 0.9- 190913 461 0.1+ 0.2- 190918 C53 0.6+ 0.9- 190904 C10 0.5- 0.5+ 190913 204 0.2+ 0.3- 190918 C53 0.6- 1.0+ 190904 A71 0.2- 0.3+ 190913 A77 0.0 0.1+ 190918 C53 0.1- 1.4+ 190904 G40 0.4+ 0.8- 190913 A77 0.3+ 0.0 190918 C53 (0.1+ 2.3-) 190904 G40 0.2- 0.1- 190913 A77 0.7+ 0.2- 190918 C53 0.6- 1.3- 190904 850 0.3+ 1.9+ 190913 C65 0.4- 0.0 190918 C53 1.1- 0.4+ 190904 850 1.1+ 1.9+ 190913 C65 0.2- 0.2- 190918 C53 (1.0+ 2.1-) 190904 850 (1.2+ 2.1+) 190913 C65 0.4- 0.6+ 190918 C53 0.2+ 1.9- 190905 N55 0.8+ 0.8+ 190913 G40 0.1- 0.6+ 190918 C53 0.5- 0.9- 190905 N55 0.2+ 0.5+ 190913 G40 0.2+ 0.8+ 190918 C53 0.2+ 1.7- 190905 N55 0.2+ 0.2+ 190913 850 0.1- 1.3+ 190918 C53 0.2- 1.4- 190906 L51 0.9+ 0.1- 190913 850 0.1+ 0.1+ 190918 C53 0.7- 0.0 190906 L51 0.2+ 0.3- 190913 850 0.3+ 0.4+ 190919 585 0.5- 0.8+ 190906 L51 0.7+ 0.0 190913 C53 0.1+ 0.1- 190919 585 0.8- 0.3+ 190906 L51 0.5+ 0.1- 190913 C53 0.0 0.8+ 190919 K61 0.0 0.6+ 190906 L51 0.5- 0.2- 190913 C53 1.7+ 1.9+ 190919 K61 0.2+ 0.4+ 190906 L51 0.0 0.4+ 190913 C53 (0.5- 3.8-) 190919 K61 0.3+ 0.1+ 190906 850 0.6- 0.7+ 190913 F65 0.0 0.1+ 190919 K61 0.3+ 0.2+ 190906 850 0.7+ 1.7+ 190913 F65 0.6+ 0.5- 190919 C10 0.1- 0.3+ 190906 N55 0.8+ 0.0 190913 F65 0.2- 0.3- 190919 C10 0.3- 0.5+ 190906 N55 0.8+ 0.2+ 190913 C53 0.7+ 1.9- 190919 Z84 0.1- 0.6+ 190906 N55 1.1+ 0.7- 190913 C53 0.6+ 1.0- 190919 C10 0.5- 0.3+ 190907 N55 0.4+ 0.3- 190913 C53 1.5+ 1.0+ 190919 Z84 0.2- 0.5+ 190907 N55 0.4+ 0.1- 190913 367 0.7- 0.4+ 190919 G40 0.3+ 0.0 190908 L51 0.1+ 0.5+ 190913 367 0.1- 1.0+ 190919 G40 0.6+ 0.1- 190908 L51 0.1+ 0.1- 190913 367 0.4+ 0.9+ 190919 G40 0.2- 0.1+ 190908 L51 0.3+ 0.3+ 190914 595 0.2+ 0.9- 190919 850 1.7- 0.7+ 190908 L51 0.3+ 0.3+ 190914 C53 0.0 0.6- 190919 850 0.3- 0.5+ 190908 J95 0.0 0.2+ 190914 C53 (1.0+ 2.5+) 190919 850 1.3- 0.6- 190908 J95 0.3- 0.2- 190914 595 0.3- 0.2+ 190920 A71 1.8- 0.7+ 190908 J95 0.1+ 0.2+ 190914 Z80 1.5- 0.7+ 190920 A71 0.2+ 0.1- 190908 J95 0.3- 0.3+ 190914 C10 0.4+ 0.0 190920 106 0.8+ 0.2+ 190908 850 0.0 0.4+ 190914 470 0.3- 0.3- 190920 I81 0.3- 0.7- 190908 850 0.2- 0.0 190914 C95 0.1+ 0.5+ 190920 A71 0.1- 0.6- 190908 850 0.2- 0.3+ 190914 470 0.3- 0.3- 190920 C23 0.2+ 0.9- 190908 568 0.2+ 0.7- 190914 J95 0.2- 0.1- 190920 106 (2.6+ 1.1-) 190908 N55 0.6+ 0.6- 190914 470 0.8- 0.6+ 190920 I81 0.6+ 0.4- 190908 N55 0.9+ 0.2- 190914 C10 0.1- 0.3+ 190920 C23 0.1- 0.0 190909 121 0.0 0.5- 190914 104 0.4- 1.2+ 190920 A71 0.9- 0.1- 190909 L51 0.3+ 0.9+ 190914 C95 0.6- 0.2- 190920 J95 0.5- 0.2+ 190909 121 0.0 0.1- 190914 A77 1.0+ 0.2+ 190920 C23 0.6+ 0.4+ 190909 121 0.0 0.4- 190914 J95 0.1+ 0.2+ 190920 106 1.5- 1.8+ 190909 L51 0.5- 0.4- 190914 C10 0.3- 0.4+ 190920 I81 0.3+ 0.5+ 190909 L51 1.0- 0.2+ 190914 104 0.1- 0.4- 190920 C23 0.4+ 0.4+ 190909 L06 0.5- 0.1- 190914 970 0.3+ 0.6+ 190920 A71 0.6- 0.1- 190909 L06 0.1- 0.0 190914 B96 (3.1- 0.0-) 190920 J95 0.2- 0.1+ 190909 L06 0.0 0.4- 190914 C53 (0.9- 4.4-) 190920 213 0.4+ 1.4+ 190909 C23 0.8- 0.3- 190914 Z80 0.3+ 0.2- 190920 C23 0.2+ 0.9+ 190909 C23 0.3+ 0.2- 190914 B96 (2.7- 0.5-) 190920 213 0.2+ 1.6+ 190909 G40 0.1- 0.1- 190914 A77 0.4- 0.0 190920 J95 0.1- 0.0 190909 G40 0.3+ 0.1- 190914 B96 0.4- 1.6- 190920 C23 0.0 0.2+ 190909 G40 0.2- 0.0 190914 970 0.4+ 0.2+ 190920 213 0.2+ 1.4+ 190909 568 0.1+ 0.6- 190914 B96 0.4+ 0.1+ 190920 I81 0.4+ 0.6+ 190909 568 0.1+ 0.7- 190914 C53 (0.8- 2.6-) 190920 850 0.9+ 0.7- 190909 568 0.1+ 0.6- 190914 C53 0.5+ 1.8- 190920 850 0.2+ 0.6+ 190909 568 0.3+ 0.6- 190914 J95 0.2- 0.1- 190920 850 0.3- 0.5+ 190909 N55 0.2+ 0.5- 190914 C53 0.4+ 0.4- 190920 C53 (0.2- 2.2-) 190909 N55 0.7- 0.6+ 190914 970 0.3+ 0.6- 190920 C53 0.3- 0.8- 190909 N55 0.1+ 0.7+ 190914 B96 0.6- 0.3+ 190920 C53 0.3- 0.1+ 190910 104 0.0 0.0 190914 B96 1.8+ 0.2+ 190920 C53 (0.6- 2.2-) 190910 104 0.1- 0.1- 190914 B96 0.4- 1.1+ 190920 C53 (0.8- 2.7-) 190910 104 0.4- 0.1- 190914 Z80 0.1+ 0.4+ 190920 C53 0.5- 1.6- 190910 850 (1.7- 2.1+) 190914 B96 1.3+ 0.5- 190920 U69 0.6+ 0.1- 190910 850 0.2+ 0.3+ 190914 B96 0.1+ 0.7- 190920 U69 0.2- 0.3- 190910 850 0.4+ 0.5+ 190914 C53 (1.8- 3.3-) 190920 C53 (1.2- 5.4-) 190910 850 0.8+ 0.3+ 190914 C53 1.4- 1.8- 190920 C53 (0.5- 5.4-) 190910 675 (2.1+ 0.5+) 190914 C53 0.8- 1.9- 190920 C53 (1.0- 3.8-) 190910 675 1.4+ 0.4- 190914 C53 (3.1- 2.1+) 190920 C53 (1.7- 3.3-) 190910 675 1.8+ 0.7+ 190914 F51 0.2+ 0.6- 190920 C53 (1.1- 3.2-) 190910 675 (2.0+ 0.7+) 190914 F51 0.2+ 0.5- 190920 C53 (1.6- 2.4-) 190910 675 1.4+ 0.7- 190915 C53 0.6+ 0.3- 190920 C53 (1.0- 2.1-) 190910 T05 0.6- 0.1+ 190915 C53 (2.4+ 0.5-) 190921 246 0.4+ 1.8+ 190910 T05 0.2- 1.2- 190915 C53 0.8+ 1.7- 190921 246 1.2+ 1.4- 190910 T05 0.8- 0.1- 190915 585 (2.0- 0.3+) 190921 246 0.7+ 0.1- 190910 T05 0.9- 0.4+ 190915 585 1.3- 0.7+ 190921 246 1.0+ 0.7- 190910 T05 0.0 0.5- 190915 585 0.9- 0.0 190921 B67 0.3+ 0.2- 190910 T05 0.0 0.5- 190915 585 1.3- 0.6+ 190921 L19 0.3- 0.4+ 190910 T05 0.8- 0.2+ 190915 585 1.5- 0.5+ 190921 215 0.2+ 0.4- 190910 T05 0.7- 1.3+ 190915 585 1.6- 0.9+ 190921 B67 0.6+ 0.2- 190910 T05 1.2- 0.7+ 190915 585 1.2- 0.7+ 190921 215 0.3+ 0.3- 190910 T05 0.6+ 0.1+ 190915 585 1.1- 0.8+ 190921 J95 0.4- 0.4+ 190910 T05 0.3- 1.6+ 190915 C53 (0.8+ 2.1-) 190921 104 0.1- 0.1+ 190910 T05 0.4- 0.7+ 190915 C53 0.6+ 1.9- 190921 C10 0.1+ 0.5+ 190910 T05 0.1+ 0.5- 190915 C10 0.0 0.4+ 190921 215 0.3+ 0.2- 190910 T05 0.1+ 0.3+ 190915 A77 0.4+ 0.3+ 190921 B67 0.3+ 1.1- 190910 T05 0.1+ 0.3- 190915 A77 0.1- 0.2+ 190921 L19 0.3- 0.4+ 190910 N55 0.4+ 1.1- 190915 C95 0.6+ 0.2+ 190921 A77 0.4- 0.4- 190910 N55 0.7+ 0.2- 190915 C10 0.4- 0.3+ 190921 J95 0.3- 0.4+ 190910 N55 1.2+ 1.6- 190915 A77 0.1- 0.2+ 190921 104 0.2- 0.2- 190911 L04 0.2- 0.2+ 190915 A77 0.0 0.7+ 190921 C10 0.1+ 0.6+ 190911 L04 0.2- 0.1+ 190915 C95 0.1+ 0.0 190921 C95 0.0 0.3+ 190911 585 0.2- 0.3- 190915 A77 0.5+ 0.0 190921 C95 0.6- 0.3+ 190911 585 0.7- 0.6+ 190915 C10 0.4+ 0.6+ 190921 I81 (3.4+ 1.1-) 190911 585 0.1- 0.2- 190915 C95 0.9- 0.1+ 190921 A77 1.4- 0.1- 190911 585 0.8- 0.5+ 190915 C53 (0.4+ 3.7-) 190921 C95 0.2- 0.2- 190911 585 0.8- 0.3+ 190915 C53 (0.6- 2.2-) 190921 I81 0.0 0.7+ 190911 585 0.7- 0.3+ 190916 A71 0.2+ 1.0- 190921 C95 0.6- 0.5- 190911 L04 0.3- 0.3- 190916 461 0.2+ 0.5+ 190921 I81 1.1+ 0.0 190911 585 0.9- 0.0 190916 A71 1.7- 0.2- 190921 C10 0.5+ 0.8+ 190911 L04 0.2- 0.2- 190916 461 0.4- 0.2+ 190921 C95 0.3- 0.4- 190911 L04 0.0 0.0 190916 461 0.1+ 0.2- 190921 C53 (0.0+ 2.6-) 190911 L04 0.2+ 0.4- 190916 A71 0.0 1.2+ 190921 C53 0.5+ 1.5- 190911 106 0.7+ 0.2- 190916 461 0.3+ 0.2+ 190921 C53 0.2+ 1.0- 190911 106 0.4- 1.2- 190916 A71 0.6- 0.6+ 190921 G40 0.3- 0.6- 190911 106 (2.6- 1.7-) 190916 C53 1.1+ 0.8- 190921 G40 0.8+ 0.5- 190911 104 0.1- 0.8+ 190916 213 0.5- 0.2+ 190921 G40 0.3- 0.3+ 190911 104 0.4- 0.7+ 190916 C53 1.5+ 0.0 190921 850 0.4- 1.4+ 190911 106 (3.3- 1.5-) 190916 213 0.0 0.7+ 190921 850 0.3- 0.2+ 190911 104 0.5- 0.0 190916 213 0.2- 0.7+ 190921 850 0.6- 0.3- 190911 K63 (2.8+ 3.1-) 190916 C53 0.2+ 1.3- 190921 850 0.2+ 0.3- 190911 K63 0.5+ 1.6- 190916 C53 (0.1+ 4.1-) 190921 850 0.6- 0.9+ 190911 K63 (0.5- 3.5-) 190917 C53 (0.7+ 2.8-) 190921 C53 0.1+ 1.8- 190911 104 0.2+ 0.3- 190917 C53 (0.4+ 2.1-) 190921 C53 0.2- 1.4- 190911 850 0.3- 1.0- 190917 C53 0.2+ 1.3- 190922 L04 0.4+ 0.4- 190911 850 1.1- 1.2- 190917 C53 (0.6+ 2.8-) 190922 L04 0.3+ 0.2- 190911 H36 0.7- 0.4+ 190917 C53 (0.3+ 2.1-) 190922 L04 0.1+ 0.4- 190911 H36 0.7+ 0.2- 190917 204 0.5+ 0.2- 190922 461 0.1- 0.7+ 190911 675 0.8- 0.8+ 190917 470 0.4- 0.3- 190922 A71 0.4+ 0.2- 190911 675 0.9- 0.8+ 190917 C53 (0.8+ 2.9-) 190922 461 0.0 0.3- 190911 675 1.3- 1.0+ 190917 470 0.3+ 0.3+ 190922 461 0.7+ 0.2- 190911 675 1.2- 1.1+ 190917 204 0.1- 0.2+ 190922 461 0.3+ 0.2+ 190911 F65 0.3- 0.4- 190917 470 0.2- 0.4+ 190922 461 0.4+ 0.2+ 190911 F65 0.7+ 0.7- 190917 C53 (0.8+ 2.5-) 190922 A71 0.1+ 0.3+ 190911 F65 0.3+ 0.5- 190917 A77 1.0+ 1.3+ 190922 A71 0.2+ 0.4- 190911 F65 0.2- 0.3- 190917 B49 1.4+ 1.9+ 190922 I81 0.1+ 0.3+ 190911 F65 0.6- 0.8- 190917 C95 0.2- 0.7+ 190922 A71 0.6- 0.1- 190911 349 0.3+ 0.2+ 190917 B49 (1.0+ 2.0+) 190922 A71 0.1- 0.2- 190911 349 0.7+ 0.5+ 190917 B49 0.4- 0.7- 190922 I81 0.3+ 0.1+ 190912 L01 0.1- 0.1+ 190917 A77 0.6+ 0.3+ 190922 I81 0.4+ 0.1+ 190912 L01 0.3+ 0.4+ 190917 C95 1.1+ 1.8+ 190922 850 0.2+ 0.4+ 190912 L01 0.3+ 0.0 190917 A77 1.0+ 1.0- 190922 850 0.3+ 0.3+ 190912 A71 0.6- 0.2+ 190917 C53 0.5+ 1.0- 190922 850 0.0 0.2+ 190912 L01 0.1+ 0.6- 190917 C53 0.8+ 1.6- 190923 Z84 0.4- 0.0 190912 A71 0.0 0.6+ 190917 850 0.3- 0.0 190923 Z84 0.2- 0.1- 190912 106 (2.0+ 2.0-) 190917 850 0.7- 0.1+ 190923 Z84 0.0 0.0 190912 C95 0.6- 0.1+ 190917 850 0.0 0.4+ 2019 Septmber 19, 09:18:59 UT Orbital elements: C/2019 Q4 (Borisov) Epoch 2019 Dec. 23.0 TT = JDT 2458840.5 T 2019 Dec. 8.29681 TT Sato q 2.0170008 (2000.0) P Q z -1.1909917 Peri. 208.88882 -0.81510012 -0.19598283 +/-0.0200797 Node 308.24216 +0.56680701 -0.46432138 e 3.4022312 Incl. 43.95712 -0.11975650 -0.86371082 From 355 observations 2019 Aug. 30-Sept. 19, mean residual 0".62. Epoch 2019 Oct. 4.0 TT = JDT 2458760.5 T 2019 Dec. 8.29697 TT Sato q 2.0169960 (2000.0) P Q z -1.1910457 Peri. 208.88924 -0.81510295 -0.19598109 +/-0.0200797 Node 308.24210 +0.56680203 -0.46432961 e 3.4023345 Incl. 43.95671 -0.11976077 -0.86370679 2019 September 12, 19:28:25 UT Orbital elements: C/2019 Q4 (Borisov) = gb00234 Epoch 2019 Dec. 23.0 TT = JDT 2458840.5 T 2019 Dec. 11.59998 TT Sato q 1.8876195 (2000.0) P Q z -0.9948871 Peri. 212.04289 -0.80914300 -0.15715954 +/-0.0690964 Node 307.04840 +0.56372667 -0.47954317 e 2.8779682 Incl. 45.18756 -0.16583078 -0.86333031 From 156 observations 2019 Aug. 30-Sept. 12, mean residual 0".58. Epoch 2019 Oct. 4.0 TT = JDT 2458760.5 T 2019 Dec. 11.60003 TT Sato q 1.8876145 (2000.0) P Q z -0.9949376 Peri. 212.04328 -0.80914577 -0.15715830 +/-0.0690964 Node 307.04834 +0.56372161 -0.47955092 e 2.8780587 Incl. 45.18715 -0.16583446 -0.86332623 2019 September 12, 01:06:39 UT Orbital elements: C/2019 Q4 (Borisov) Epoch 2019 Dec. 23.0 TT = JDT 2458840.5 T 2019 Dec. 10.91128 TT Sato q 1.9141141 (2000.0) P Q z -1.0321865 Peri. 211.34857 -0.81046320 -0.16577638 +/-0.0689192 Node 307.29408 +0.56474065 -0.47591454 e 2.9757227 Incl. 44.93018 -0.15561943 -0.86372654 From 152 observations 2019 Aug. 30-Sept. 11, mean residual 0".57. Epoch 2019 Oct. 4.0 TT = JDT 2458760.5 T 2019 Dec. 10.91135 TT Sato q 1.9141091 (2000.0) P Q z -1.0322377 Peri. 211.34896 -0.81046598 -0.16577502 +/-0.0689192 Node 307.29402 +0.56473560 -0.47592241 e 2.9758157 Incl. 44.92977 -0.15562326 -0.86372247 2019 September 6, 09:21:14 UT Orbit-1 Orbital elements: gb00234 T 2020 Jan. 3.42960 TT Sato q 1.046943 (2000.0) P Q Peri. 249.9303 -0.6259221 +0.2684316 Node 297.8348 +0.3621890 -0.7314539 e 1.0 Incl. 55.8979 -0.6906813 -0.6268330 From 64 observations 2019 Aug. 30-Sept. 6, mean residual 0".78. Residuals in seconds of arc 190830 L51 0.1+ 0.9+ 190901 186 0.3+ 0.2- 190904 L51 0.3+ 0.6- 190830 L51 1.0+ 0.3+ 190901 186 1.2- 0.3- 190904 C10 0.2- 0.4- 190830 L51 0.3+ 0.8+ 190902 L51 1.0+ 0.2- 190904 C10 0.2+ 0.3- 190831 L51 0.4+ 0.2- 190902 L51 0.0 0.5- 190904 A71 0.3- 1.4- 190831 L51 0.9+ 1.0- 190902 L51 0.0 0.4+ 190904 C10 0.5- 0.1+ 190831 L51 0.3- 0.6+ 190902 L51 0.5+ 0.0 190904 A71 0.2- 0.1- 190831 L51 0.7+ 0.3- 190902 L01 0.2- 0.5- 190904 G40 0.3+ 1.4- 190831 850 0.2+ 0.4+ 190902 L01 0.1- 0.5+ 190904 G40 0.3- 0.7- 190831 850 1.6- 0.8- 190902 L01 0.4- 0.5- 190904 850 0.2+ 1.3+ 190831 850 0.6+ 1.5+ 190902 J95 0.2+ 0.4- 190904 850 1.0+ 1.3+ 190901 L51 0.5+ 0.5+ 190902 J95 0.5- 0.1- 190904 850 1.1+ 1.5+ 190901 L51 0.5+ 0.7+ 190902 850 3.0- 3.5+ 190905 N55 0.5+ 0.8+ 190901 L51 0.5+ 0.9+ 190902 850 0.4- 2.1- 190905 N55 0.1- 0.5+ 190901 L51 0.4+ 0.4- 190903 L51 0.7- 0.6+ 190905 N55 0.1- 0.2+ 190901 595 0.2+ 0.3+ 190903 L51 0.1- 0.4- 190906 L51 0.7+ 0.2+ 190901 595 0.2- 0.1+ 190903 L51 0.3+ 0.2- 190906 L51 0.0 0.1- 190901 595 0.6- 1.0+ 190903 850 0.4- 0.3- 190906 L51 0.5+ 0.2+ 190901 850 0.0 1.2- 190903 850 0.1- 0.3- 190906 L51 0.3+ 0.1+ 190901 850 0.8- 2.6- 190903 H06 0.0 1.0- 190906 L51 0.7- 0.0 190901 H06 0.7- 0.3- 190903 H06 0.3+ 1.6- 190906 L51 0.2- 0.7+ 190901 H06 0.5- 0.3- 190904 L51 0.2+ 0.0 190901 186 0.2- 0.6+ 190904 L51 0.4+ 0.0 Orbit-2 Orbital elements: gb00234 T 2019 Dec. 8.55684 TT Sato q 2.0039761 (2000.0) P Q Peri. 209.05553 -0.81445882 -0.19420266 Node 308.14420 +0.56723396 -0.46476122 e 3.3264326 Incl. 44.04416 -0.12207566 -0.86387634 From 62 observations 2019 Aug. 30-Sept. 6, mean residual 0".60. Residuals in seconds of arc 190830 L51 0.5- 0.6+ 190901 186 0.4+ 0.1- 190904 L51 0.1+ 0.3- 190830 L51 0.4+ 0.0 190901 186 1.1- 0.2- 190904 C10 0.3- 0.2- 190830 L51 0.3- 0.5+ 190902 L51 1.0+ 0.1- 190904 C10 0.0 0.1- 190831 L51 0.3+ 0.5- 190902 L51 0.0 0.5- 190904 A71 0.4- 1.1- 190831 L51 0.7+ 1.3- 190902 L51 0.0 0.5+ 190904 C10 0.6- 0.3+ 190831 L51 0.5- 0.4+ 190902 L51 0.5+ 0.1+ 190904 A71 0.4- 0.1+ 190831 L51 0.6+ 0.6- 190902 L01 0.1- 0.5- 190904 G40 0.2+ 1.0- 190831 850 0.2+ 0.3+ 190902 L01 0.1- 0.5+ 190904 G40 0.4- 0.3- 190831 850 1.6- 0.9- 190902 L01 0.3- 0.4- 190904 850 0.1+ 1.6+ 190831 850 0.6+ 1.4+ 190902 J95 0.2+ 0.4- 190904 850 0.9+ 1.7+ 190901 L51 0.6+ 0.3+ 190902 J95 0.5- 0.1- 190904 850 1.0+ 1.9+ 190901 L51 0.5+ 0.6+ 190902 850 (2.9- 3.7+) 190905 N55 0.5+ 0.6+ 190901 L51 0.5+ 0.8+ 190902 850 0.3- 1.9- 190905 N55 0.1- 0.2+ 190901 L51 0.4+ 0.5- 190903 L51 0.7- 0.9+ 190905 N55 0.1- 0.0 190901 595 0.2+ 0.2+ 190903 L51 0.1- 0.2- 190906 L51 0.6+ 0.3- 190901 595 0.1- 0.1- 190903 L51 0.2+ 0.1+ 190906 L51 0.1- 0.6- 190901 595 0.6- 0.9+ 190903 850 0.4- 0.0 190906 L51 0.4+ 0.2- 190901 850 0.1+ 1.1- 190903 850 0.1- 0.1+ 190906 L51 0.2+ 0.4- 190901 850 (0.7- 2.6-) 190903 H06 0.0 0.6- 190906 L51 0.8- 0.5- 190901 H06 0.6- 0.2- 190903 H06 0.3+ 1.2- 190906 L51 0.3- 0.2+ 190901 H06 0.4- 0.2- 190904 L51 0.1+ 0.2+ 190901 186 0.1- 0.7+ 190904 L51 0.3+ 0.2+ --