2018 June 17, 21:55:48 UT Orbital elements: C/2018 L2 (ATLAS) = A1077xy Epoch 2018 Nov. 18.0 TT = JDT 2458440.5 T 2018 Dec. 2.64920 TT Sato q 1.7078036 (2000.0) P Q z +0.0059876 Peri. 56.37877 +0.03574924 +0.56753572 +/-0.0009057 Node 243.07641 -0.89201054 +0.38924544 e 0.9897744 Incl. 67.30450 +0.45059869 +0.72552822 From 56 observations 2018 June 4-17, mean residual 0".42. Epoch 2018 July 21.0 TT = JDT 2458320.5 T 2018 Dec. 2.64611 TT Sato q 1.7077371 (2000.0) P Q z +0.0058567 Peri. 56.38090 +0.03578786 +0.56754913 +/-0.0009057 Node 243.07625 -0.89200159 +0.38927349 e 0.9899983 Incl. 67.30288 +0.45061336 +0.72550268 Residuals in seconds of arc 180604 X74 0.2+ 0.1- 180607 I39 0.3+ 0.9- 180607 Q62 0.4- 0.2- 180604 X74 1.1- 0.9+ 180607 Y00 0.6+ 0.1- 180607 Q62 0.5- 0.3+ 180606 T08 0.8+ 0.3- 180607 I47 0.5- 0.0 180607 Q62 0.3- 0.1+ 180606 T08 0.7+ 0.5- 180607 I47 0.6- 0.2+ 180607 Q62 0.6+ 0.3+ 180606 T08 0.6+ 0.4- 180607 I47 0.4- 0.8+ 180607 Q62 0.2+ 0.2+ 180606 T08 0.8+ 0.7- 180607 I39 0.0 0.2+ 180607 Q62 0.2+ 0.4+ 180606 T08 0.6+ 0.5- 180607 Y00 0.3+ 0.0 180608 I39 0.4+ 0.2+ 180606 T08 0.3+ 0.2- 180607 Y00 0.2- 0.0 180608 I39 0.1+ 0.3- 180606 T08 0.6+ 0.4- 180607 Y00 0.4- 0.1- 180608 I39 0.6+ 0.1- 180606 T08 0.9+ 0.4- 180607 I39 0.3+ 0.1- 180608 474 0.0 0.1+ 180606 I39 0.6- 1.4+ 180607 I39 0.5+ 0.3+ 180608 474 0.1- 0.1- 180606 W88 0.4- 0.1- 180607 I39 0.1- 0.1+ 180608 474 0.0 0.1- 180606 W88 0.6- 0.1- 180607 I39 0.1+ 0.2- 180612 372 0.0 0.1+ 180606 I39 0.4- 0.4- 180607 E23 0.2+ 0.0 180612 372 0.1+ 0.0 180606 807 0.4- 0.0 180607 E23 0.1+ 0.2+ 180612 372 0.0 0.0 180606 807 0.8- 0.4+ 180607 E23 0.4+ 0.1- 180616 W96 0.2+ 0.0 180606 W88 0.5- 0.1- 180607 E23 0.3- 0.1- 180616 W96 0.0 0.0 180606 807 0.8- 0.2+ 180607 Q62 0.3- 0.2+ 180617 W96 0.2- 0.1- 180606 807 0.3- 0.0 180607 Q62 0.6- 0.1- 2018 June 8, 20:51:01 UT Orbital elements: A1077xy T 2018 Dec. 1.71009 TT Sato q 1.7038866 (2000.0) P Q Peri. 56.29965 +0.03574857 +0.56774358 Node 243.09583 -0.89269421 +0.38808434 e 1.0 Incl. 67.25709 +0.44924279 +0.72598744 From 50 observations 2018 June 4-8, mean residual 0".43 --