2020 January 06, 02:17:31 UT Orbital elements: C/2019 Y1 (ATLAS) Epoch 2020 Mar. 12.0 TT = JDT 2458920.5 T 2020 Mar. 15.57250 TT Sato q 0.8365063 (2000.0) P Q z +0.0058423 Peri. 57.59940 +0.33116149 -0.80077562 +/-0.0010483 Node 31.39889 +0.12410500 -0.48737550 e 0.9951129 Incl. 73.32707 +0.93537694 +0.34817170 From 130 observations 2019 Dec. 16-2020 Jan. 13, mean residual 0".60. Epoch 2020 Feb. 1.0 TT = JDT 2458880.5 T 2020 Mar. 15.57244 TT Sato q 0.8365082 (2000.0) P Q z +0.0058475 Peri. 57.59912 +0.33116614 -0.80077322 +/-0.0010483 Node 31.39892 +0.12410595 -0.48737630 e 0.9951085 Incl. 73.32720 +0.93537517 +0.34817609 Residuals in seconds of arc 191216 T05 (2.3+ 0.4-) 191221 J04 0.3+ 0.0 191226 Q38 0.1+ 0.6- 191216 T05 0.1+ 0.0 191221 J04 0.3+ 0.0 191226 Q38 0.7+ 1.3- 191216 T05 1.5+ 0.5+ 191222 W76 0.4+ 1.6+ 191226 Q38 0.2+ 0.6- 191216 T05 (3.1+ 0.8-) 191222 W76 0.0 0.9+ 191228 X31 0.4- 0.1- 191217 807 0.3- 0.4- 191222 W76 0.8- 1.1+ 191228 X31 1.1- 0.4- 191217 807 0.0 0.3- 191222 W76 0.5- 1.3+ 191228 349 0.4- 0.3+ 191217 807 0.1- 0.5- 191222 W76 0.6- 1.2+ 191228 349 0.5+ 0.6- 191217 Q62 0.1+ 0.2- 191222 W76 1.5- 1.0+ 191228 349 0.1- 1.1- 191217 Q62 0.0 0.0 191222 W76 0.5+ 1.5+ 191228 587 0.2- 1.2- 191217 E23 1.0+ 0.2+ 191222 W76 0.3+ 0.9+ 191228 587 0.3+ 0.8- 191217 Q62 0.2- 0.0 191222 W76 0.4- 0.3+ 191230 Q62 0.3+ 0.8- 191217 E23 0.0 0.6- 191222 W76 0.8- 1.3+ 191230 Q62 0.0 1.0- 191217 E23 0.9+ 0.7+ 191222 474 0.2- 0.7- 191230 587 0.7+ 0.1+ 191218 807 0.0 0.3- 191222 474 0.3+ 0.2- 191230 587 0.5+ 0.5+ 191218 807 0.2+ 0.4- 191222 474 0.3+ 0.2- 191230 587 0.5+ 0.3+ 191218 Q62 1.8- 0.3- 191222 J04 0.1+ 0.2+ 191231 X74 1.4- 0.2+ 191218 Q62 1.8- 0.4+ 191222 J04 0.3+ 0.0 191231 X74 0.6- 0.4+ 191218 Q62 0.6- 0.2- 191222 J04 0.6+ 0.3+ 191231 X74 0.7+ 0.7+ 191218 194 0.4- 0.1- 191223 G39 0.1- 0.2- 200101 595 0.4- 0.3- 191218 194 0.0 0.7- 191223 G39 1.0+ 0.6- 200101 595 0.1+ 0.1- 191218 194 0.5- 0.1- 191223 G39 0.2+ 0.0 200101 595 0.5- 0.3- 191218 194 1.0- 0.7- 191223 G39 0.5- 0.8+ 200102 349 0.9- 0.3+ 191218 194 0.2+ 0.7- 191223 G39 0.5+ 0.4- 200102 349 1.2- 0.7+ 191219 Q38 0.4+ 1.4- 191223 G39 0.8+ 0.4+ 200103 T08 0.4+ 0.0 191219 Q38 0.2- 0.6+ 191223 G39 0.9+ 0.9- 200103 T08 0.2- 0.1- 191219 Q38 0.6- 1.5+ 191223 J04 0.1+ 0.2- 200103 T08 1.0+ 0.5+ 191220 I47 0.2+ 0.9+ 191223 J04 0.4- 0.3+ 200103 T08 0.5+ 0.1- 191220 I47 0.4+ 0.9+ 191223 J04 0.1- 0.1+ 200103 349 0.3- 0.4- 191220 I47 0.2+ 1.3- 191224 X31 0.0 0.5+ 200103 349 0.3+ 0.5+ 191220 X02 0.1+ 0.1+ 191224 X31 0.4- 0.2- 200104 I52 0.3+ 0.3- 191220 X02 0.3- 0.3+ 191224 X31 0.7- 0.3- 200104 I52 0.3+ 0.4- 191220 T05 0.1+ 1.1- 191224 T05 0.4+ 0.2- 200104 I52 (0.4- 2.3-) 191220 T05 0.3+ 0.4- 191224 T05 1.0+ 0.2- 200104 204 0.1- 0.4+ 191220 T05 1.5+ 0.1- 191224 T05 0.9+ 0.2- 200104 204 1.1+ 0.5- 191220 T05 0.4- 0.0 191224 T12 0.5- 0.0 200105 X31 0.4- 0.0 191220 J04 0.3+ 0.0 191224 T12 0.6- 0.1- 200105 X31 0.7- 0.0 191220 J04 0.1+ 0.0 191224 T12 0.6- 0.0 200105 I52 0.1- 1.1- 191220 J04 0.1+ 0.2+ 191224 T12 0.5- 0.1- 200105 I52 0.2+ 0.4- 191221 807 0.1- 0.4- 191224 T05 0.6+ 0.6+ 200105 I52 1.1+ 0.6+ 191221 807 0.3- 0.1- 191225 Q62 0.2+ 0.0 200106 A77 1.2- 1.5+ 191221 807 0.3- 0.2- 191225 Q62 0.7+ 0.0 200106 A77 0.2+ 0.8+ 191221 807 0.2- 0.1- 191225 Q62 0.2+ 0.2+ 200106 A77 (0.9+ 2.4+) 191221 W88 0.1+ 0.4- 191225 Q62 0.4+ 0.2+ 200113 349 0.3- 0.4- 191221 W88 0.1- 0.7- 191225 Q62 0.2- 0.1+ 200113 349 0.1+ 0.0 191221 J04 0.2+ 0.0 191225 Q62 0.3- 0.3+ 2019 December 21, 14:09:57 UT Orbital elements: A10iMHA Epoch 2020 Mar. 12.0 TT = JDT 2458920.5 T 2020 Mar. 15.53526 TT Sato q 0.7937343 (2000.0) P Q n 0.01152847 Peri. 60.80042 +0.27004859 -0.81453710 a 19.4068498 Node 32.56574 +0.11241823 -0.50291412 e 0.9591003 Incl. 72.52431 +0.95626142 +0.28914824 P 85.49 From 37 observations 2019 Dec. 16-21, mean residual 0".49. 2019 December 18, 12:05:11 UT Orbital elements: A10iMHA T 2020 Mar. 15.50269 TT Sato q 0.8404569 (2000.0) P Q Peri. 57.27603 +0.33742621 -0.79911248 Node 31.27437 +0.12498067 -0.48584646 e 1.0 Incl. 73.42174 +0.93301843 +0.35407973 From 16 observations 2019 Dec. 16-18, mean residual 0".61. --