2021 January 18, 05:44:17 UT Orbital elements: C/2020 Y3 (ATLAS) Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 T 2020 Dec. 3.54280 TT Sato q 1.9992609 (2000.0) P Q z +0.0069455 Peri. 342.07315 -0.93991684 -0.27908490 +/-0.0006344 Node 191.42433 -0.01813085 -0.53436299 e 0.9861141 Incl. 83.10655 -0.34092169 +0.79785200 From 102 observations 2020 Dec. 28-2021 Jan. 17, mean residual 0".49. Epoch 2021 Jan. 26.0 TT = JDT 2459240.5 T 2020 Dec. 3.54334 TT Sato q 1.9992622 (2000.0) P Q z +0.0069486 Peri. 342.07345 -0.93991765 -0.27908219 +/-0.0006344 Node 191.42431 -0.01813638 -0.53435357 e 0.9861078 Incl. 83.10721 -0.34091917 +0.79785926 Residuals in seconds of arc 201228 T08 0.6- 0.1+ 210102 I52 0.1+ 0.2- 210113 N51 0.1- 0.7- 201228 T08 0.6- 0.7- 210104 703 0.1+ 0.6- 210113 N51 0.1+ 0.4- 201228 T08 0.9- 1.2+ 210104 703 0.4- 0.4- 210113 K74 0.5- 0.0 201228 T08 0.3- 0.6+ 210104 703 0.4- 0.6+ 210113 K74 0.4- 0.1+ 201229 I47 0.1+ 1.0- 210104 703 1.4- 0.1+ 210113 K74 0.4- 0.5- 201229 I47 0.6+ 0.8- 210106 T08 (2.1+ 0.5-) 210113 K74 0.3- 0.5- 201229 I47 0.1+ 0.1+ 210106 T08 0.4+ 0.0 210113 Q21 0.7+ 1.8+ 201229 807 0.2- 0.0 210106 T08 1.1+ 0.6+ 210113 Q21 0.2+ 0.4- 201229 807 0.1- 0.0 210106 T08 0.1+ 0.0 210113 Q21 0.6+ 0.1+ 201229 807 0.1- 0.1- 210109 595 0.9- 0.1- 210113 Q21 1.4- 0.4+ 201229 807 0.2- 0.1- 210109 595 0.3+ 0.1+ 210113 Q21 0.2- 0.3+ 201229 H06 0.3- 0.2- 210109 L01 0.1- 0.2+ 210113 Q21 0.0 0.3+ 201229 H06 0.7- 0.5- 210109 L01 0.3+ 0.0 210113 Q21 0.0 1.0+ 201230 K91 0.2+ 0.3+ 210109 L01 0.0 0.2- 210113 Q11 0.3- 0.1- 201230 K91 0.2- 0.1- 210109 711 0.7+ 0.1+ 210113 Q21 1.6+ 0.2+ 201230 K91 0.0 0.0 210109 711 0.5+ 0.0 210113 Q11 0.1- 0.1- 201230 K91 0.6+ 0.0 210109 711 0.6+ 0.3+ 210113 Q21 0.0 0.4- 201230 G40 0.7+ 0.4+ 210109 711 0.3+ 0.6+ 210113 Q11 0.2- 0.0 201230 G40 1.0+ 0.8- 210109 I52 0.3- 0.5- 210114 T08 0.7- 0.2+ 201230 W85 0.5+ 0.2+ 210109 I52 0.3+ 0.3+ 210114 T08 0.3- 0.3+ 201230 W85 0.0 0.1- 210109 I52 0.2+ 0.4+ 210114 T08 0.1+ 0.3- 201230 W85 0.5+ 0.6+ 210110 T08 0.0 0.3- 210114 T08 0.5- 0.5- 201230 W85 0.2+ 0.0 210110 T08 1.1- 1.5- 210114 T08 (2.4- 1.1-) 201230 W85 0.7+ 0.5+ 210110 T08 0.5+ 0.1+ 210114 T08 0.8- 0.2+ 201231 204 0.1- 0.3+ 210110 T08 0.1+ 0.4- 210114 T08 0.2- 0.4- 201231 L06 0.2- 0.2- 210112 711 0.0 0.3- 210114 T08 0.1+ 0.1+ 201231 204 0.2+ 0.0 210112 711 0.0 0.3- 210114 Q11 0.1- 0.0 201231 L06 0.2- 0.6- 210112 711 0.1+ 0.3- 210114 Q11 0.0 0.1+ 201231 L06 0.2- 0.6- 210112 T05 0.2- 0.2- 210114 Q11 0.2+ 0.0 201231 W88 0.1+ 1.0+ 210112 T05 0.0 0.4+ 210116 A77 1.2+ 0.3+ 201231 W88 0.2+ 0.7+ 210112 T05 0.3- 0.6+ 210116 A77 0.5+ 1.0+ 201231 W88 0.2+ 0.6- 210112 T05 0.1- 1.1+ 210117 Q11 0.3+ 0.2- 201231 W88 0.4- 0.6+ 210113 N51 0.1- 0.8- 210117 Q11 0.1+ 0.3- 210102 I52 0.3+ 0.2+ 210113 N51 0.2- 0.6- 210117 Q11 0.2+ 0.3- 210102 I52 0.3- 0.1- 210113 N51 0.2- 0.7- 2021 January 15, 06:54:59 UT Orbital elements: C/2020 Y3 (ATLAS) = A10u1Pq Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 T 2020 Dec. 3.36006 TT Sato q 1.9977891 (2000.0) P Q z +0.0083252 Peri. 341.98005 -0.93950947 -0.28063398 Node 191.40931 -0.01700407 -0.53442417 e 0.9833681 Incl. 83.09943 -0.34210060 +0.79726744 From 98 observations 2020 Dec. 28-2021 Jan. 14, mean residual 0".50. Epoch 2021 Jan. 26.0 TT = JDT 2459240.5 T 2020 Dec. 3.36060 TT Sato q 1.9977905 (2000.0) P Q z +0.0083283 Peri. 341.98034 -0.93951028 -0.28063127 Node 191.40929 -0.01700962 -0.53441477 e 0.9833618 Incl. 83.10009 -0.34209809 +0.79727470 2021 January 14, 01:34:36 UT Orbital elements: A10u1Pq T 2020 Dec. 3.32624 TT Sato q 1.9978361 (2000.0) P Q z +0.0080456 Peri. 341.96246 -0.93942394 -0.28089478 Node 191.41160 -0.01684570 -0.53452816 e 0.9839263 Incl. 83.09312 -0.34234322 +0.79710587 From 79 observations 2020 Dec. 28-2021 Jan. 13, mean residual 0".47. --