2021 January 15, 06:12:00 UT Orbital elements: C/2021 A2 (NEOWISE) Epoch 2021 Jan. 26.0 TT = JDT 2459240.5 T 2021 Jan. 22.68366 TT Sato q 1.4132063 (2000.0) P Q z +0.0012338 Peri. 338.88071 -0.62415976 +0.01504078 +/-0.0099177 Node 125.22698 +0.78041091 +0.05959909 e 0.9982564 Incl. 107.00671 -0.03719426 +0.99810907 From 93 observations 2021 Jan. 3-14, mean residual 0".54. Epoch 2021 Jan. 26.0 TT = JDT 2459240.5 T 2021 Jan. 22.68366 TT Sato q 1.4132063 (2000.0) P Q z +0.0012338 Peri. 338.88071 -0.62415976 +0.01504078 +/-0.0099177 Node 125.22698 +0.78041091 +0.05959909 e 0.9982564 Incl. 107.00671 -0.03719426 +0.99810907 Residuals in seconds of arc 210103 C51 0.1+ 0.1+ 210106 E94 0.6+ 0.1+ 210107 I47 0.3+ 0.3+ 210103 C51 0.4+ 0.6+ 210106 E94 0.8+ 0.4+ 210107 I47 0.6+ 0.4+ 210103 C51 0.3- 0.3+ 210106 E94 0.6+ 0.1+ 210107 Q38 0.5+ 0.7- 210103 C51 0.6- 0.4- 210106 K93 0.6- 0.1- 210107 Q38 1.0+ 0.6- 210103 C51 0.3- 0.3+ 210106 K93 0.8- 0.1+ 210107 Q38 1.2+ 0.5- 210103 C51 0.5- 0.2+ 210106 K93 0.6- 0.1- 210107 Q56 1.8- 0.8+ 210103 C51 0.1+ 0.1- 210106 K93 0.7- 0.1- 210107 Q56 1.2- 0.2+ 210103 C51 0.2- 0.8- 210106 K93 0.8- 0.2- 210108 X31 0.6- 0.2- 210105 Q38 1.9+ 0.2- 210107 I47 0.4+ 0.0 210108 X31 0.4- 0.0 210105 Q38 1.0+ 0.0 210107 I47 0.2- 0.7+ 210108 X31 0.4- 0.9- 210105 Q38 0.7+ 0.6+ 210107 I47 0.2- 0.1+ 210108 W88 0.1+ 0.1- 210106 X31 0.3- 0.3- 210107 W88 0.4- 0.0 210108 W88 0.0 0.1- 210106 X31 0.4- 0.1- 210107 W88 0.4- 0.0 210108 W88 0.3- 0.0 210106 X31 0.6- 0.1- 210107 W88 0.5- 0.0 210108 W88 0.0 0.1- 210106 X31 0.6- 0.1- 210107 W88 0.4- 0.0 210108 W88 0.0 0.1- 210106 X31 0.8- 0.3+ 210107 W88 0.3- 0.1- 210108 W88 0.3- 0.1- 210106 X31 0.1- 0.1- 210107 W88 0.3- 0.0 210108 W88 0.0 0.1- 210106 X31 0.3- 0.1- 210107 W88 0.5- 0.0 210108 W88 0.2- 0.0 210106 X31 1.1- 0.4- 210107 W88 0.2- 0.0 210108 W88 0.0 0.0 210106 W89 0.4+ 0.1+ 210107 W88 0.4- 0.1- 210108 Q38 1.4+ 0.1- 210106 W89 0.1+ 0.0 210107 W88 0.3- 0.1+ 210108 Q38 0.6+ 0.4+ 210106 W89 0.1+ 0.0 210107 W88 0.3- 0.0 210108 Q38 1.1+ 0.4+ 210106 W88 0.1- 0.0 210107 W88 0.7- 0.1+ 210108 Q38 0.5+ 0.5+ 210106 W88 0.4- 0.2- 210107 W88 0.3- 0.1- 210109 Q62 1.0- 0.7+ 210106 W88 0.4- 0.2- 210107 G39 (2.4+ 0.9+) 210109 Q62 0.5- 0.1- 210106 X02 0.7- 0.3- 210107 G39 1.7+ 0.3+ 210109 Q62 0.6- 0.1+ 210106 X02 0.9- 0.1- 210107 G39 0.5+ 0.4- 210112 X03 0.0 0.2+ 210106 E94 0.9+ 0.2- 210107 G39 1.7+ 0.2+ 210112 X03 0.3- 0.2+ 210106 E94 0.7+ 0.2- 210107 G39 0.7+ 0.0 210114 Q38 (2.8+ 1.9-) 210106 E94 1.3+ 0.4+ 210107 G39 0.6- 0.2- 210114 Q38 0.4- 0.5- 210106 E94 1.2+ 0.0 210107 G39 0.2- 0.3- 210114 Q38 0.7+ 0.1+ 210106 E94 1.0+ 0.2+ 210107 I47 1.3+ 0.2+ 2021 January 10, 04:49:30 UT Orbital elements: C/2021 A2 (NEOWISE) Epoch 2021 Jan. 26.0 TT = JDT 2459240.5 T 2021 Jan. 22.80414 TT Sato q 1.4138009 (2000.0) P Q z -0.0055298 Peri. 338.95676 -0.62413481 +0.01703001 Node 125.19746 +0.78049978 +0.05929511 e 1.0078180 Incl. 107.07967 -0.03571883 +0.99809522 From 89 observations 2021 Jan. 3-9, mean residual 0".54. Epoch 2021 Jan. 26.0 TT = JDT 2459240.5 T 2021 Jan. 22.80414 TT Sato q 1.4138009 (2000.0) P Q z -0.0055298 Peri. 338.95676 -0.62413481 +0.01703001 Node 125.19746 +0.78049978 +0.05929511 e 1.0078180 Incl. 107.07967 -0.03571883 +0.99809522 --