2019 January 26, 13:23:20 UT Orbital elements: P/2019 A2 (ATLAS) Epoch 2018 Nov. 18.0 TT = JDT 2458440.5 T 2018 Nov. 23.15782 TT Sato q 3.5448504 (2000.0) P Q n 0.07184551 Peri. 324.54951 -0.25441545 -0.95259649 a 5.7306376 Node 139.44273 +0.93592025 -0.28597028 e 0.3814213 Incl. 14.86732 +0.24356941 +0.10383124 P 13.72 From 96 observations 2018 Dec. 13-2019 Jan. 25, mean residual 0".48. Epoch 2019 Feb. 6.0 TT = JDT 2458520.5 T 2018 Nov. 23.13365 TT Sato q 3.5448433 (2000.0) P Q n 0.07186378 Peri. 324.54674 -0.25435009 -0.95261213 a 5.7296664 Node 139.44152 +0.93594021 -0.28590815 e 0.3813177 Incl. 14.86789 +0.24356097 +0.10385881 P 13.71 Residuals in seconds of arc 181213 D29 0.5- 0.3- 190105 P93 1.1+ 0.6+ 190106 157 0.7+ 0.1- 181213 D29 0.1+ 0.4- 190105 P93 0.6+ 0.1- 190106 157 0.5+ 0.0 181213 D29 0.2- 0.2- 190105 P93 0.2+ 0.4+ 190106 L06 0.2- 0.7- 181227 T05 0.7- 0.4+ 190105 L19 1.0- 0.6+ 190107 K41 1.0- 0.2+ 181227 T05 0.1+ 0.6- 190105 104 1.0- 0.3+ 190107 K41 0.7- 0.3+ 181227 T05 0.2+ 0.2+ 190105 L19 0.3+ 0.0 190107 K41 0.5- 0.5+ 181227 T05 1.3- 0.6+ 190105 C77 0.6- 0.2- 190107 K51 0.4+ 0.2- 181230 J43 0.6+ 0.3- 190105 104 0.4- 0.4+ 190107 K51 0.5+ 0.1- 181230 J43 0.4+ 0.0 190105 104 0.1+ 0.2+ 190107 K51 0.3+ 0.1- 181230 J43 0.3+ 0.2- 190105 C77 0.3- 0.0 190107 Z99 0.4+ 0.7- 181230 J43 0.2+ 0.1- 190105 C77 0.4- 0.3+ 190107 Z99 1.0+ 0.7- 190104 T05 0.1+ 0.8- 190105 L01 1.3+ 0.2+ 190107 Z99 0.7+ 0.9- 190104 T05 0.2- 0.1+ 190105 595 0.2+ 0.3+ 190107 L27 0.1- 0.3+ 190104 T05 0.2- 0.0 190105 595 0.3- 0.1- 190108 L27 0.6- 0.8+ 190104 T05 0.3- 0.2- 190105 595 0.1- 0.2- 190108 L27 0.3- 0.1- 190105 K38 1.1- 0.0 190105 595 0.4- 0.1- 190108 I52 0.2- 0.1- 190105 K38 0.2- 1.1+ 190105 L01 0.9+ 0.3+ 190108 I52 0.8- 0.0 190105 W96 0.5+ 0.6+ 190106 W88 0.5+ 0.5+ 190108 I52 0.5+ 0.4- 190105 K38 0.2+ 0.1- 190106 W88 0.2- 0.2- 190108 I52 0.1- 0.0 190105 W96 0.1+ 0.1+ 190106 Q11 0.6+ 0.1- 190109 Q11 0.2- 0.1+ 190105 G40 0.6+ 0.3- 190106 Q11 0.7+ 0.3- 190109 Q11 0.4- 0.1+ 190105 G40 0.4+ 0.3- 190106 Q11 0.5+ 0.0 190111 L27 0.5- 0.3+ 190105 W96 1.0+ 0.4+ 190106 K63 0.0 0.1- 190111 213 0.3- 0.1- 190105 I47 0.3+ 0.5+ 190106 587 0.6- 0.9+ 190111 L27 0.6- 0.4+ 190105 I47 0.4- 0.5+ 190106 587 0.2+ 0.5+ 190111 213 0.1- 0.5- 190105 W96 0.4+ 0.0 190106 587 0.0 0.1+ 190111 L27 0.4- 0.3+ 190105 H06 0.3- 0.1- 190106 K63 0.9- 0.0 190111 213 1.0- 0.2+ 190105 H06 0.4- 0.2- 190106 L06 0.4+ 0.8- 190113 349 0.8- 0.2+ 190105 568 0.9+ 0.5- 190106 K63 0.5- 0.2+ 190113 349 0.6- 0.5+ 190105 568 0.9+ 0.4- 190106 L06 0.5- 0.6- 190125 L27 0.1+ 0.3+ 190105 568 0.7+ 0.5- 190106 157 0.3+ 0.4- 190125 L27 0.3+ 0.3- 190105 P93 0.6+ 0.1+ 190106 157 0.4+ 0.0 190125 L27 0.0 1.1- 2019 January 15, 09:51:16 UT Orbital elements: P/2019 A2 (ATLAS) Epoch 2018 Nov. 18.0 TT = JDT 2458440.5 T 2018 Nov. 30.35490 TT Sato q 3.5530383 (2000.0) P Q n 0.07213530 Peri. 325.91790 -0.27560401 -0.94651568 a 5.7152797 Node 139.34742 +0.92936034 -0.30696371 e 0.3783264 Incl. 14.92427 +0.24562530 +0.09940501 P 13.66 From 93 observations 2018 Dec. 13-2019 Jan. 13, mean residual 0".46. Epoch 2019 Feb. 6.0 TT = JDT 2458520.5 T 2018 Nov. 30.33237 TT Sato q 3.5530328 (2000.0) P Q n 0.07215360 Peri. 325.91538 -0.27554331 -0.94653150 a 5.7143131 Node 139.34621 +0.92938031 -0.30690625 e 0.3782222 Incl. 14.92484 +0.24561785 +0.09943171 P 13.66 --