2021 September 27, 11:26:18 UT Orbital elements: P/2021 N4 = P/2016 U2 (PANSTARRS) Epoch 2021 Aug. 14.0 TT = JDT 2459440.5 T 2021 Aug. 30.62177 TT Sato q 2.3009845 (2000.0) P Q n 0.18615812 Peri. 105.29578 +0.95069022 +0.27140878 a 3.0377222 Node 239.16359 -0.30589595 +0.90037155 e 0.2425297 Incl. 10.06670 +0.05114470 +0.34010048 P 5.29 From 37 observations 2016 Oct. 25-2021 Sept. 8, mean residual 0".50. Epoch 2021 Sept. 23.0 TT = JDT 2459480.5 T 2021 Aug. 30.57958 TT Sato q 2.3009833 (2000.0) P Q n 0.18619046 Peri. 105.29044 +0.95062743 +0.27163226 a 3.0373705 Node 239.15557 -0.30610409 +0.90030873 e 0.2424423 Incl. 10.06711 +0.05106644 +0.34008838 P 5.29 Residuals in seconds of arc 161025 F51 0.2+ 0.0 210809 F51 0.2+ 0.2+ 210902 215 1.8- 0.0 161025 F51 0.1+ 0.1- 210809 F51 0.1- 0.2+ 210902 215 0.8- 1.7- 161025 F51 0.1+ 0.0 210809 F51 0.3+ 0.0 210903 F51 0.2+ 0.2+ 161027 G96 0.5- 0.4+ 210809 F51 0.1+ 0.1+ 210903 F51 0.5+ 0.5+ 161027 G96 0.6- 0.5+ 210810 L01 0.5+ 0.7+ 210903 F51 0.4+ 0.0 161027 G96 0.2+ 0.1- 210810 L01 1.0- 0.5+ 210904 A71 0.3- 0.2- 161027 G96 0.6- 0.2- 210810 568 0.2+ 0.2+ 210904 A71 0.5- 0.7- 161115 F51 0.3+ 0.0 210810 568 0.2+ 0.2+ 210908 G96 0.1+ 0.1- 161115 F51 0.4+ 0.0 210810 568 0.2+ 0.2+ 210908 G96 0.1+ 0.2+ 161115 F51 0.6+ 0.2- 210814 Q62 0.9+ 0.3- 210908 G96 0.2+ 0.1+ 210708 F51 0.3- 0.1- 210814 Q62 1.2+ 0.2- 210908 G96 0.4+ 0.0 210708 F51 0.3- 0.0 210814 Q62 1.0+ 0.3+ 210708 F51 0.3- 0.0 210902 215 1.1- 0.3- 2020 August 31, 07:52:12 UT Orbital elements: P/2021 N4 = P/2016 U2 (PANSTARRS) Epoch 2021 Aug. 14.0 TT = JDT 2459440.5 T 2021 Aug. 30.63617 TT Sato q 2.3009569 (2000.0) P Q n 0.18615862 Peri. 105.30062 +0.95071200 +0.27133313 a 3.0377168 Node 239.16331 -0.30582389 +0.90039611 e 0.2425374 Incl. 10.06665 +0.05117080 +0.34009584 P 5.29 From 21 observations 2016 Oct. 25-2021 Aug. 14, mean residual 0".32. Epoch 2021 Sept. 23.0 TT = JDT 2459480.5 T 2021 Aug. 30.59399 TT Sato q 2.3009557 (2000.0) P Q n 0.18619096 Peri. 105.29528 +0.95064923 +0.27155658 a 3.0373651 Node 239.15529 -0.30603200 +0.90033331 e 0.2424501 Incl. 10.06706 +0.05109256 +0.34008374 P 5.29 --