December 06, 2015A11:15:42 UT Orbital elements: C/2015 X2 (Catalina) T 2015 Dec. 20.94348 TT Sato q 1.9318817 (2000.0) P Q Peri. 42.34496 -0.34419032 -0.06971727 Node 101.97184 +0.36977786 -0.92670642 e 1.0 Incl. 73.16163 +0.86301643 +0.36926239 From 31 observations 2015 Dec. 2-5, mean residual 0".57. Residuals in seconds of arc 151202 703 0.9+ 0.3- 151203 H01 0.3+ 0.4- 151204 926 0.1+ 0.6+ 151202 703 0.5- 0.1+ 151203 H01 0.4+ 0.3- 151204 H36 0.0 0.0 151202 703 0.2+ 0.5+ 151203 H01 0.3+ 0.3- 151204 H36 0.0 0.1- 151202 703 (0.6- 3.6-) 151203 926 0.2+ 0.8- 151204 H06 1.1+ 0.8- 151202 703 0.0 1.4+ 151203 926 0.0 0.3- 151204 H06 0.4+ 0.0 151202 703 2.0- 0.0 151204 J95 0.4+ 0.0 151204 H06 0.1+ 0.9- 151202 703 0.4+ 0.4- 151204 J95 0.2+ 0.2- 151204 C10 0.5- 0.8+ 151203 H36 1.1- 0.5+ 151204 J95 0.5- 0.6+ 151205 C10 0.8+ 0.8+ 151203 H36 0.5+ 0.3+ 151204 926 0.1+ 0.5- 151205 C10 1.2- 0.4+ 151203 H36 0.1+ 0.2- 151204 H36 0.3+ 0.1- 151205 C10 0.8- 0.0 151203 H01 0.3+ 0.2- 151204 926 0.6- 0.1- --