2018 January 23, 02:59:02 UT Orbital elements: P/2013 CU129 = 2018 A2 (PANSTARRS) Epoch 2018 June 11.0 TT = JDT 2458280.5 T 2018 June 24.36588 TT Sato q 0.7978527 (2000.0) P Q n 0.20191332 Peri. 211.92762 -0.21380846 +0.96497012 a 2.8775711 Node 46.22843 -0.84612903 -0.10514722 e 0.7227340 Incl. 12.15533 -0.48821267 -0.24036792 P 4.88 From 170 observations 2013 Feb. 1-2018 Jan. 22, mean residual 0".65. Epoch 2018 Feb. 11.0 TT = JDT 2458160.5 T 2018 June 24.36982 TT Sato q 0.7978270 (2000.0) P Q n 0.20197971 Peri. 211.93268 -0.21372255 +0.96498902 a 2.8769406 Node 46.22848 -0.84613820 -0.10507135 e 0.7226821 Incl. 12.15539 -0.48823438 -0.24032522 P 4.88 Residuals in seconds of arc 171226 G96 0.2- 0.0 171229 H06 0.3- 0.0 180106 G96 0.5- 0.3- 171226 G96 0.7- 0.1+ 171229 I52 0.3+ 0.4- 180106 G96 0.1+ 0.2- 171226 G96 0.1+ 0.1+ 171229 I52 0.8- 0.1- 180106 G96 0.9- 0.2- 171226 G96 0.1- 0.2- 171229 I52 0.2- 0.1+ 180109 585 0.2+ 0.1+ 171226 G96 0.7+ 0.1+ 171229 I52 0.5- 0.3- 180109 585 0.1+ 0.1+ 171226 G96 0.3- 0.4- 171229 926 0.7+ 0.5+ 180109 585 0.6+ 0.1+ 171226 G96 0.4+ 0.0 171229 926 0.1- 0.6+ 180109 585 0.3- 0.4+ 171226 G96 0.6+ 0.2+ 171229 926 0.0 0.0 180109 585 0.3+ 0.5+ 171227 G40 0.0 0.6- 171230 926 0.4+ 0.0 180109 585 0.5+ 0.7+ 171227 G40 0.5+ 0.1- 171230 926 0.3+ 0.1- 180109 585 0.6+ 0.6+ 171228 G96 1.1- 0.5+ 171230 926 0.7+ 0.7- 180111 G40 0.4+ 0.3- 171228 G96 0.2+ 0.5+ 171231 926 0.0 0.1+ 180111 G40 0.8+ 0.2- 171228 G96 (3.4+ 0.3+) 171231 926 0.7- 0.2+ 180111 G40 0.9+ 0.2- 171228 926 0.1- 0.7+ 171231 926 0.3+ 0.2- 180112 D95 0.5- 0.9+ 171228 926 0.5- 0.1- 180105 G96 0.2- 0.1+ 180112 D95 0.1+ 0.7+ 171228 926 0.2- 0.3+ 180105 G96 0.4- 0.2- 180115 Q11 0.1+ 0.3- 171229 G96 1.3+ 0.2- 180105 G96 0.1- 0.2- 180115 Q11 0.4- 0.2- 171229 H06 0.7- 0.3- 180105 G96 0.9- 0.1+ 180120 Q11 0.0 0.6- 171229 G96 1.7+ 0.9- 180105 926 0.1+ 0.8+ 180120 Q11 0.2- 0.4- 171229 H06 0.6- 0.2- 180105 926 0.6- 0.3- 171229 G96 (2.5+ 0.2-) 180105 926 0.6- 0.7- 2018 January 17, 04:39:30 UT Orbital elements: P/2013 CU129 = 2018 A2 (PANSTARRS) Epoch 2018 June 11.0 TT = JDT 2458280.5 T 2018 June 24.36591 TT Sato q 0.7978525 (2000.0) P Q n 0.20191332 Peri. 211.92767 -0.21380821 +0.96497019 a 2.8775712 Node 46.22840 -0.84612901 -0.10514703 e 0.7227341 Incl. 12.15533 -0.48821280 -0.24036772 P 4.88 From 165 observations 2013 Feb. 1-2018 Jan. 16, mean residual 0".63. --