2019 December 21, 07:36:47 UT Orbital elements: P/2019 W1 (PANSTARRS) Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 T 2019 May 8.09966 TT Sato q 3.3399283 (2000.0) P Q n 0.10155609 Peri. 18.76508 +0.60046849 -0.76561330 a 4.5498672 Node 35.42846 +0.67324072 +0.32827862 e 0.2659284 Incl. 23.46359 +0.43149105 +0.55323541 P 9.71 From 72 observations 2018 Aug. 8-2019 Dec. 20, mean residual 0".53. Epoch 2019 Dec. 23.0 TT = JDT 2458840.5 T 2019 May 7.95336 TT Sato q 3.3397923 (2000.0) P Q n 0.10153073 Peri. 18.74190 +0.60085181 -0.76532962 a 4.5506250 Node 35.42286 +0.67306401 +0.32864913 e 0.2660805 Incl. 23.46089 +0.43123306 +0.55340791 P 9.71 Residuals in seconds of arc 180808 F51 0.2+ 0.5- 191130 L01 0.4- 0.2- 191204 C10 1.1- 0.0 180808 F51 0.2+ 0.3+ 191130 L01 0.4+ 0.1- 191204 C10 0.3- 0.2- 180808 F51 0.1- 0.0 191130 157 0.8- 0.1- 191204 C10 1.1- 0.9- 180808 F51 0.4+ 0.0 191201 C47 0.1- 0.1- 191204 H36 0.7- 0.3- 180821 F51 0.6+ 0.2- 191201 C47 0.1- 0.0 191204 H36 0.7+ 0.7+ 180821 F51 0.3- 0.2- 191201 C47 0.0 0.1+ 191204 H36 1.4- 0.4+ 190101 F51 0.4- 0.0 191201 970 0.4+ 0.5+ 191204 K51 0.2- 0.2- 190101 F51 0.3- 0.1+ 191202 970 0.1+ 0.3+ 191204 K51 0.3+ 0.4+ 190101 F51 0.2- 0.1+ 191202 J95 1.7- 0.8- 191204 K88 0.5- 0.5- 190101 F51 0.3+ 0.4+ 191202 J95 0.9- 0.6- 191204 K88 0.5- 0.2- 190124 F51 0.3- 0.1+ 191202 J95 1.2- 0.7- 191205 850 0.5- 0.5- 190124 F51 0.5- 0.4+ 191202 K88 0.1+ 0.4- 191205 850 0.5+ 0.4+ 190124 F51 0.0 0.1- 191202 K88 0.5- 0.3- 191205 T12 0.8+ 0.2+ 191129 F52 0.4+ 0.3- 191202 K88 0.8- 0.2- 191207 I52 0.8+ 0.1+ 191129 F52 0.2+ 0.0 191202 K63 0.5- 0.6+ 191207 I52 0.5+ 0.1+ 191129 F52 0.4+ 0.3+ 191202 K63 0.7- 0.6+ 191207 I52 0.5+ 0.1- 191129 F52 0.3- 0.1+ 191202 K63 0.9- 0.2+ 191218 H06 0.8+ 0.3- 191130 K88 0.2- 0.1+ 191203 T12 1.0+ 0.2+ 191218 H06 1.3+ 0.5- 191130 K88 0.4+ 0.5- 191203 568 0.7+ 0.2+ 191218 H36 1.2+ 0.5+ 191130 L01 0.2- 1.0- 191203 568 0.6+ 0.2+ 191218 H36 0.2+ 0.3+ 191130 L01 0.2- 0.3- 191203 568 0.4+ 0.1+ 191218 H36 0.5+ 0.2+ 191130 L01 0.3+ 0.8- 191203 K88 0.2+ 0.1- 191220 711 0.6+ 1.2+ 191130 L01 0.2+ 0.0 191203 K88 0.2- 0.0 191220 711 0.5+ 0.8+ 191130 157 0.6- 0.0 191204 K88 0.1+ 0.2+ 191220 711 0.9+ 1.1+ 2019 December 19, 22:14:12 UT Orbital elements: P20V11H Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 T 2019 May 7.09075 TT Sato q 3.3379404 (2000.0) P Q n 0.10136576 Peri. 18.53066 +0.60328775 -0.76333543 a 4.5555610 Node 35.45150 +0.67209000 +0.33067500 e 0.2672823 Incl. 23.47030 +0.42934709 +0.55495322 P 9.72 From 56 observations 2019 Nov. 29-Dec. 18, mean residual 0".50. --