C/2019 Y4 (ATLAS) From 178 observations 2019 Dec. 28-2020 Jan. 9. Kinoshita T = 2020 May 30.9086 TT peri.= 177.3006 e = 1.0 node = 120.6689 (2000.0) q = 0.252684 AU incl.= 45.4886 m1 = 12.5 + 5log(delta) + 10.0log(r) A. Node = E:01/21.9 JST O:1290/07/17.9 JST 455.436 AU D. Node = E:07/24.5 JST O:2020/05/31.5 JST 0.253 AU 2020 JST R.A. (2000) D.C. Delta r Elong. Phase dMo./P.A. Tail/P.A. M-O Ag m1 H/A 01/12 02:00 11 50.52 +34 24.9 2.088 2.739 122.0 17.7 18.8/ 10.5 0.8/276 47 16 18.5 +60/260 01/13 02:00 11 50.80 +34 43.4 2.064 2.725 122.8 17.7 19.2/ 9.3 0.8/275 36 17 18.4 +61/260 01/14 01:50 11 51.05 +35 02.3 2.040 2.711 123.6 17.6 19.7/ 8.2 0.8/274 29 18 18.4 +60/259 01/15 01:50 11 51.28 +35 21.7 2.017 2.697 124.4 17.5 20.1/ 7.0 0.8/273 27 19 18.3 +60/259 01/16 01:50 11 51.48 +35 41.6 1.994 2.683 125.1 17.4 20.5/ 5.9 0.8/272 32 20 18.3 +61/258 01/17 01:50 11 51.65 +36 02.1 1.971 2.669 125.9 17.4 21.0/ 4.8 0.8/271 41 21 18.2 +62/258 01/18 01:40 11 51.80 +36 22.8 1.948 2.655 126.6 17.3 21.4/ 3.7 0.8/270 52 22 18.2 +61/257 01/19 01:40 11 51.91 +36 44.2 1.925 2.641 127.3 17.2 21.9/ 2.6 0.8/269 64 23 18.1 +62/256 01/20 01:40 11 52.00 +37 06.1 1.903 2.626 128.1 17.2 22.4/ 1.6 0.8/268 76 24 18.1 +62/256 01/21 01:40 11 52.05 +37 28.5 1.881 2.612 128.8 17.1 22.9/ 0.5 0.9/267 88 25 18.0 +63/255 01/22 01:30 11 52.07 +37 51.3 1.859 2.598 129.4 17.0 23.4/359.5 0.9/265 99 26 18.0 +62/254 01/23 01:30 11 52.05 +38 14.7 1.837 2.584 130.1 16.9 23.9/358.5 0.9/264 111 27 17.9 +63/253 01/24 01:30 11 52.00 +38 38.6 1.816 2.569 130.8 16.9 24.5/357.5 0.9/263 122 28 17.9 +64/252 01/25 01:30 11 51.91 +39 03.1 1.795 2.555 131.4 16.8 25.0/356.6 0.9/261 131 29 17.8 +64/251 01/26 01:20 11 51.78 +39 27.9 1.774 2.540 132.0 16.7 25.6/355.6 0.9/260 140 1 17.8 +63/250 01/27 01:20 11 51.61 +39 53.4 1.753 2.526 132.6 16.7 26.1/354.7 0.9/259 146 2 17.7 +64/249 01/28 01:20 11 51.40 +40 19.4 1.733 2.511 133.2 16.6 26.7/353.7 0.9/257 149 3 17.7 +65/248 01/29 01:10 11 51.15 +40 45.7 1.713 2.497 133.7 16.6 27.3/352.8 0.9/255 147 3 17.6 +64/248 01/30 01:10 11 50.85 +41 12.7 1.693 2.482 134.2 16.5 27.8/351.9 0.9/254 142 4 17.6 +65/246 01/31 01:10 11 50.50 +41 40.3 1.673 2.468 134.7 16.5 28.4/351.0 0.9/252 135 5 17.5 +65/245 02/01 01:00 11 50.10 +42 08.2 1.654 2.453 135.2 16.4 29.0/350.2 0.9/250 126 6 17.5 +64/244 02/02 01:00 11 49.65 +42 36.8 1.635 2.438 135.6 16.4 29.6/349.3 0.9/249 116 7 17.4 +65/243 02/03 01:00 11 49.15 +43 05.9 1.616 2.423 136.0 16.4 30.2/348.4 0.9/247 106 8 17.4 +66/242 02/04 00:50 11 48.59 +43 35.2 1.598 2.409 136.4 16.4 30.8/347.6 1.0/245 96 9 17.3 +65/241 02/05 00:50 11 47.98 +44 05.3 1.579 2.394 136.7 16.4 31.4/346.7 1.0/243 85 10 17.3 +65/239 02/06 00:50 11 47.30 +44 35.9 1.561 2.379 136.9 16.4 32.0/345.8 1.0/241 74 11 17.2 +66/238 02/07 00:40 11 46.57 +45 06.7 1.544 2.364 137.2 16.5 32.6/345.0 1.0/239 63 12 17.2 +65/237 02/08 00:40 11 45.76 +45 38.2 1.527 2.349 137.4 16.5 33.2/344.1 1.0/237 52 13 17.1 +66/235 02/09 00:40 11 44.89 +46 10.1 1.510 2.334 137.5 16.6 33.8/343.3 1.0/235 43 14 17.1 +66/233 02/10 00:30 11 43.95 +46 42.3 1.493 2.319 137.6 16.7 34.4/342.5 1.0/232 38 15 17.0 +65/233 02/11 00:30 11 42.93 +47 15.1 1.477 2.304 137.7 16.8 35.0/341.6 1.1/230 37 16 17.0 +66/231 02/12 00:30 11 41.83 +47 48.3 1.461 2.289 137.7 16.9 35.6/340.7 1.1/228 41 17 16.9 +67/229