January 12, 2017A14:03:49 UT Orbital elements: C/2017 A3 (Elenin) = I061753 Epoch 2017 Feb. 16.0 TT = JDT 2457800.5 T 2017 Jan. 31.33882 TT Sato q 3.8257583 (2000.0) P Q n 0.00709290 Peri. 304.42412 -0.19982370 -0.04299058 a 26.8279189 Node 98.53567 +0.82174581 +0.53677795 e 0.8573964 Incl. 98.16941 -0.53367061 +0.84262758 P 138.96 From 84 observations 2017 Jan. 5-10, mean residual 0".49. Residuals in seconds of arc 170105 Q60 1.0+ 0.2+ 170106 E23 0.2- 0.3+ 170107 Q62 0.4- 0.4- 170105 Q60 0.3- 0.0 170106 Q62 0.4- 0.1- 170107 Q60 0.2- 0.7- 170105 Q60 1.0- 0.0 170106 Q62 0.3- 0.4- 170107 Q60 0.7- 0.6+ 170106 I47 0.5+ 0.4+ 170106 E23 0.0 0.7+ 170107 Q60 0.1- 0.5+ 170106 I47 0.1- 0.3+ 170106 Q62 0.3+ 0.0 170108 W96 1.4+ 0.5- 170106 I47 0.5+ 0.4+ 170106 Q62 0.1- 0.5- 170108 W96 0.9- 1.4- 170106 I47 0.1- 0.1+ 170106 Q62 0.3- 0.1+ 170108 W88 0.2- 0.2+ 170106 I47 0.7- 0.0 170106 Q62 0.3+ 0.1- 170108 W88 0.3+ 0.1- 170106 I47 0.4+ 0.2+ 170106 Q62 0.8- 0.0 170108 W96 0.5+ 0.4- 170106 Y00 0.4+ 1.2- 170106 Q62 0.0 0.2- 170108 W96 0.2+ 0.3+ 170106 Y00 0.7+ 1.4- 170106 Q62 0.1- 1.0- 170108 W96 0.2- 0.5+ 170106 807 0.1- 0.5- 170106 Q62 0.1- 0.3+ 170108 W98 0.5+ 0.7- 170106 807 0.2- 0.3- 170106 Q62 0.2- 0.2- 170108 W98 0.0 0.4+ 170106 807 0.2- 0.3- 170106 Q62 0.2- 0.6- 170108 Q60 0.6+ 0.5+ 170106 Y00 0.0 0.3+ 170106 Q62 0.4- 0.2- 170108 Q60 0.2- 1.0+ 170106 Y00 0.5+ 0.2+ 170106 Q62 0.1+ 0.4- 170108 Q60 0.5- 1.1+ 170106 Y00 0.1+ 0.4- 170106 Q62 0.3- 0.1- 170109 W98 0.7+ 0.1- 170106 Y00 0.4+ 0.7+ 170106 Q62 0.1+ 0.7- 170109 W98 0.0 0.6- 170106 W98 0.7- 1.2+ 170106 Q60 0.5+ 0.1- 170109 W98 0.0 0.3- 170106 W98 0.1- 1.4+ 170106 Q60 0.4- 0.7+ 170109 Q62 0.4- 0.3- 170106 Q60 0.1+ 0.1+ 170106 Q62 0.1- 0.3- 170109 Q62 0.4- 0.1- 170106 Q60 0.2+ 0.1+ 170106 Q62 0.1+ 0.0 170109 Q62 0.0 0.2- 170106 Q60 0.3- 1.3+ 170107 W88 0.4- 0.2- 170109 Q60 0.1- 0.7- 170106 Q62 1.0+ 0.6- 170107 W88 0.3+ 0.2- 170109 Q60 0.3+ 0.2+ 170106 Q62 0.3+ 0.8+ 170107 Q62 0.1- 0.2+ 170109 Q60 0.2- 0.7+ 170106 Q62 0.6+ 0.2- 170107 Q60 0.3+ 0.1+ 170110 W98 0.2- 0.2+ 170106 E23 0.1- 0.3- 170107 Q60 0.3+ 0.3+ 170110 W98 0.3- 0.3+ 170106 Q62 0.4- 0.3+ 170107 Q60 0.1+ 0.6+ 170110 W98 0.4+ 0.4- January 11, 2017A02:03:57 UT Orbital elements: I061753 Epoch 2017 Feb. 16.0 TT = JDT 2457800.5 T 2017 Feb. 1.02079 TT Sato q 3.8286882 (2000.0) P Q n 0.00653866 Peri. 304.52825 -0.19977042 -0.04128797 a 28.3232894 Node 98.46744 +0.82283769 +0.53539874 e 0.8648219 Incl. 98.20605 -0.53200555 +0.84358965 P 150.74 From 74 observations 2017 Jan. 5-10, mean residual 0".50. January 10, 2017A04:48:07 UT Epoch 2017 July 26.0 TT = JDT 2457960.5 T 2017 Jan. 29.92464 TT Sato q 3.8250919 (2000.0) P Q n 0.00743056 Peri. 304.17501 -0.19970051 -0.04428623 a 26.0088910 Node 98.55828 +0.81936063 +0.54031023 e 0.8529314 Incl. 98.15903 -0.53737126 +0.84029970 P 132.64 From 71 observations 2017 Jan. 5-9, mean residual 0".51. January 7, 2017A14:31:17 UT Orbital elements: I061753 T 2016 Oct. 1.70405 TT Sato q 3.8732646 (2000.0) P Q Peri. 281.65830 -0.18613368 -0.05522732 Node 95.26146 +0.55423277 +0.81850566 e 0.9754497 Incl. 99.89586 -0.81128311 +0.57183777 From 52 observations 2017 Jan. 5-7, mean residual 0".55. --