2018 December 03, 08:17:00 UT Orbital elements: C/2018 W2 (Africano) = ZW8B74D Epoch 2019 Sep. 14.0 TT = JDT 2458740.5 T 2019 Sept. 15.82594 TT Sato q 1.4441058 (2000.0) P Q n 0.00778851 Peri. 160.21055 +0.93717200 +0.34823728 a 25.2057581 Node 181.34034 +0.03728197 -0.04022645 e 0.9427073 Incl. 116.33881 +0.34686986 -0.93654291 P 126.55 From 31 observations 2018 Nov. 27-Dec. 2, mean residual 0".49. Epoch 2018 Dec. 28.0 TT = JDT 2458480.5 T 2019 Sept. 15.83371 TT Sato q 1.4440350 (2000.0) P Q n 0.00780216 Peri. 160.21267 +0.93720041 +0.34816565 a 25.1763566 Node 181.33519 +0.03719910 -0.04024494 e 0.9426432 Incl. 116.33810 +0.34680200 -0.93656875 P 126.33 Residuals in seconds of arc 181127 703 0.1+ 0.3- 181128 850 0.0 0.5+ 181129 G40 1.2- 0.2- 181127 703 0.6- 0.6+ 181128 850 0.2+ 0.5- 181129 G40 0.5- 0.8- 181127 703 0.3+ 0.0 181128 850 0.4+ 0.0 181129 G40 0.3- 0.0 181127 703 0.2- 0.8+ 181128 850 0.3+ 0.5+ 181129 P93 0.5+ 0.6+ 181127 G96 0.5+ 0.2+ 181128 P93 0.0 0.2+ 181129 P93 0.5+ 0.3+ 181127 G96 0.4+ 0.2+ 181128 P93 0.4- 0.2- 181129 P93 0.6+ 0.7+ 181127 G96 0.1+ 0.2- 181128 P93 0.5- 0.0 181129 P93 1.4+ 0.1+ 181128 L06 0.2- 1.2- 181129 L01 0.2+ 0.1- 181202 157 0.5- 0.1- 181128 L06 0.1- 0.3- 181129 L01 0.6- 0.4- 181202 157 0.2+ 0.2- 181128 L06 1.0+ 0.2- 181129 L01 0.1+ 0.2+ 181128 850 1.0- 0.5- 181129 L01 0.5- 0.2+ 2018 November 29, 21:35:22 UT Orbital elements: ZW8B74D T 2019 Oct. 3.22653 TT Sato q 1.0909221 (2000.0) P Q n 0.08969910 Peri. 182.02470 +0.99838836 -0.00444930 a 4.9424693 Node 183.69411 +0.05593983 -0.09080491 e 0.7792759 Incl. 118.58472 -0.00956133 -0.99585876 P 10.99 From 25 observations 2018 Nov. 27-29, mean residual 0".42. 2018 November 28, 16:02:52 UT Orbital elements: ZW8B74D T 2019 June 7.61904 TT Sato q 0.710776 (2000.0) P Q Peri. 198.2709 +0.9066371 +0.0879831 Node 213.5561 +0.4151761 -0.3601024 e 1.0 Incl. 131.7110 -0.0750868 -0.9287547 From 15 observations 2018 Nov. 27-28, mean residual 0".45. --