2021 August 6, 15:49:10 UT Orbital elements: C/2021 O3 (PANSTARRS) Epoch 2022 Apr. 11.0 TT = JDT 2459680.5 T 2022 Apr. 21.78400 TT Sato q 0.2879937 (2000.0) P Q z +0.0035500 Peri. 300.00720 -0.56945330 -0.81125173 +/-0.0085414 Node 189.14032 +0.64636914 -0.54159345 e 0.9989776 Incl. 56.61486 -0.50786797 +0.22033422 From 90 observations 2021 July 26-Aug. 5, mean residual 0".37. Epoch 2021 Aug. 14.0 TT = JDT 2459440.5 T 2022 Apr. 21.77955 TT Sato q 0.2879504 (2000.0) P Q z +0.0034238 Peri. 299.99140 -0.56953490 -0.81113943 +/-0.0085414 Node 189.16936 +0.64668660 -0.54204216 e 0.9990141 Incl. 56.56155 -0.50737209 +0.21964315 210726 F51 0.0 0.3- 210730 Z17 0.2- 0.1+ 210801 587 0.2- 0.2- 210726 F51 0.0 0.0 210730 Z17 0.3+ 0.3+ 210801 587 0.3+ 0.2+ 210726 F51 0.2- 0.2+ 210730 Y00 0.6- 0.2- 210801 J95 0.1- 0.2- 210726 F51 0.1- 0.1- 210730 Y00 0.1- 0.8+ 210801 104 0.1- 0.5- 210726 F51 0.0 0.0 210730 Y00 0.6- 0.2+ 210801 104 0.2- 0.3+ 210728 H36 0.2- 0.7+ 210730 X02 0.3- 0.2- 210801 J95 0.0 0.3- 210728 H36 0.0 0.0 210730 X02 0.3+ 0.4- 210802 215 0.2- 0.1+ 210728 L27 0.0 0.2- 210730 L27 0.2+ 0.2- 210802 215 0.1- 0.1- 210728 L27 0.4+ 0.2- 210730 L27 0.1+ 0.0 210802 215 0.2+ 0.3- 210728 L27 0.5+ 0.2- 210730 L27 0.1+ 0.1+ 210802 247 0.4+ 0.3- 210728 L27 0.3+ 0.3- 210731 U69 0.0 0.2+ 210802 247 0.1- 0.1- 210728 L27 0.2+ 0.0 210731 U69 0.2+ 0.1+ 210803 247 0.2+ 0.6- 210728 104 0.2- 0.1- 210731 033 0.2+ 0.4+ 210803 G40 0.4+ 0.2- 210728 L27 0.2+ 0.4+ 210731 033 0.4+ 0.3+ 210803 G40 0.5- 0.9- 210729 104 0.1- 0.2+ 210731 033 0.3+ 0.3+ 210803 W62 0.6+ 0.5- 210729 L27 0.0 0.3+ 210731 033 0.2- 0.8+ 210803 W62 0.9+ 1.0- 210729 J95 0.1- 0.5- 210731 L81 0.2+ 0.0 210803 W62 0.8+ 0.1- 210729 J95 0.2- 0.4- 210731 L81 0.5- 0.1- 210803 T08 0.7- 0.4+ 210729 H36 0.1+ 0.0 210801 L81 0.1- 0.2+ 210803 T08 0.2- 0.6+ 210729 H36 0.5+ 0.1+ 210801 L81 0.5- 0.1- 210803 T08 0.2- 0.7- 210729 033 0.5- 0.1+ 210801 Z21 0.1+ 0.2- 210803 T08 0.3+ 0.8+ 210729 033 0.1- 0.1- 210801 Z21 0.2+ 0.3+ 210803 349 0.1- 0.8+ 210729 033 0.0 0.3- 210801 Q21 0.5+ 0.5- 210803 349 0.2- 0.7+ 210729 587 0.1- 0.4+ 210801 Q21 0.4+ 0.2+ 210804 Q21 0.3+ 0.2- 210729 587 0.0 0.1- 210801 Q21 0.2- 0.5+ 210804 Q21 0.8- 0.4+ 210729 587 0.3- 0.1- 210801 P93 0.4+ 0.4- 210805 Z17 (2.4- 0.5-) 210730 247 0.6+ 0.6- 210801 P93 1.3- 0.2- 210805 Z17 0.4- 0.2- 210730 247 (2.4+ 1.1+) 210801 P93 0.7- 0.1- 210805 W62 0.4- 0.4+ 210730 033 0.1+ 0.1- 210801 033 0.4- 0.2+ 210805 W62 0.6+ 0.3- 210730 033 0.1+ 0.0 210801 033 0.5- 0.3+ 210805 W62 0.5+ 0.2+ 210730 033 0.5+ 0.2+ 210801 587 0.2+ 0.1- Ephemeris: 0h TT R.A.(2000) Decl. Delta r Daily motion m1 Elong. 2021/22 h m 。 ， m ， 。 Aug. 1 23 24.55 +27 58.4 3.652 4.249 -0.54 +1.5 19.3 119.8 Aug. 11 23 18.29 +28 05.9 3.429 4.135 -0.73 -0.3 19.0 128.3 Aug. 21 23 10.14 +27 53.8 3.225 4.019 -0.91 -2.5 18.8 136.5 Aug. 31 23 00.32 +27 17.9 3.044 3.902 -1.06 -5.0 18.5 143.5 Sep. 10 22 49.27 +26 14.9 2.890 3.783 -1.15 -7.9 18.3 148.2 Sep. 20 22 37.64 +24 43.7 2.766 3.662 -1.16 -10.6 18.0 148.8 Sep. 30 22 26.22 +22 46.3 2.673 3.540 -1.10 -13.0 17.8 144.9 Oct. 10 22 15.82 +20 27.9 2.611 3.415 -0.95 -14.7 17.6 137.6 Oct. 20 22 07.15 +17 56.4 2.577 3.289 -0.75 -15.5 17.4 128.4 Oct. 30 22 00.68 +15 20.6 2.566 3.160 -0.51 -15.5 17.2 118.3 Nov. 9 21 56.66 +12 48.5 2.573 3.028 -0.26 -14.7 17.1 107.9 Nov. 19 21 55.19 +10 26.6 2.592 2.894 -0.01 -13.5 16.9 97.7 Nov. 29 21 56.16 +08 18.9 2.615 2.758 +0.23 -11.9 16.7 87.7 Dec. 9 21 59.46 +06 27.4 2.637 2.618 +0.45 -10.2 16.5 78.1 Dec. 19 22 04.90 +04 52.8 2.652 2.475 +0.66 -8.5 16.3 68.9 Dec. 29 22 12.33 +03 34.5 2.655 2.328 +0.85 -7.0 16.0 60.1 Jan. 8 22 21.61 +02 31.3 2.643 2.177 +1.03 -5.5 15.7 51.8 Jan. 18 22 32.67 +01 41.6 2.612 2.021 +1.20 -4.3 15.3 43.8 Jan. 28 22 45.48 +01 03.5 2.560 1.860 +1.38 -3.2 14.9 36.3 Feb. 7 23 00.14 +00 35.0 2.484 1.693 +1.57 -2.4 14.5 29.2 Feb. 17 23 16.81 +00 14.0 2.383 1.520 +1.79 -1.8 13.9 22.6 Feb. 27 23 35.87 +00 02.1 2.257 1.338 +2.06 -1.4 13.2 16.6 Mar. 9 23 57.94 +00 15.9 2.104 1.147 +2.41 -1.4 12.4 11.3 Mar. 19 00 24.08 +00 30.3 1.921 0.945 +2.90 -1.6 11.4 7.8 Mar. 29 00 56.18 +00 47.0 1.706 0.730 +3.65 -1.7 10.0 7.8 .................................................................... Apr. 8 01 37.67 +00 56.6 1.447 0.505 +4.86 +1.2 8.0 11.2 Apr. 10 01 47.54 +00 53.2 1.388 0.460 +5.17 +3.3 7.5 12.2 Apr. 12 01 58.04 +00 45.1 1.325 0.417 +5.48 +6.7 7.0 13.1 Apr. 14 02 09.15 +00 29.3 1.259 0.377 +5.77 +12.1 6.5 14.1 Apr. 16 02 20.82 +00 01.4 1.188 0.341 +5.99 +20.6 5.9 15.1 Apr. 18 02 32.85 +00 45.7 1.113 0.312 +6.05 +33.5 5.4 15.9 Apr. 20 02 44.88 +02 01.0 1.035 0.294 +5.86 +51.5 5.0 16.5 Apr. 22 02 56.40 +03 54.9 0.956 0.288 +5.41 +74.0 4.7 16.6 Apr. 24 03 06.91 +06 35.1 0.879 0.297 +4.80 +98.5 4.6 16.4 Apr. 26 03 16.20 +10 04.2 0.810 0.318 +4.20 122.1 4.8 15.9 Apr. 28 03 24.35 +14 19.1 0.750 0.348 +3.74 142.8 5.0 15.6 Apr. 30 03 31.66 +19 13.8 0.701 0.385 +3.44 159.7 5.3 16.0 May 2 03 38.46 +24 39.9 0.662 0.426 +3.33 171.9 5.6 17.5 May 4 03 45.12 +30 28.0 0.634 0.470 +3.38 179.1 5.9 20.4 May 6 03 51.97 +36 27.8 0.615 0.514 +3.60 181.1 6.3 24.2 May 8 03 59.36 +42 29.1 0.605 0.559 +4.01 178.1 6.6 28.7 May 10 04 07.65 +48 22.3 0.603 0.605 +4.63 171.0 6.9 33.3 May 12 04 17.31 +53 59.5 0.608 0.650 +5.52 160.7 7.2 38.0 May 14 04 28.94 +59 14.9 0.618 0.695 +6.80 148.2 7.6 42.5 May 16 04 43.38 +64 04.3 0.634 0.739 +8.64 134.1 7.9 46.8 May 18 05 01.87 +68 25.1 0.653 0.783 +11.30 118.9 8.2 50.7 May 20 05 26.23 +72 15.0 0.676 0.826 +15.18 102.4 8.5 54.3 May 22 05 59.11 +75 30.7 0.702 0.869 +20.69 +83.6 8.8 57.6 May 24 06 43.88 +78 07.2 0.730 0.912 +27.75 +61.1 9.1 60.5 May 26 07 42.98 +79 56.4 0.759 0.953 +34.37 +34.1 9.4 63.2 .................................................................... May 28 08 53.53 +80 50.0 0.790 0.995 +36.31 +5.4 9.7 65.6 June 7 12 49.79 +75 49.6 0.959 1.194 +10.18 -47.0 10.9 74.4 m1 = 10.2 + 5 log(Delta) + 10.0 log(r) 2021 August 5, 21:57:36 UT Orbital elements: C/2021 O3 (PANSTARRS) Epoch 2022 Apr. 11.0 TT = JDT 2459680.5 T 2022 Apr. 18.84965 TT Sato q 0.2835373 (2000.0) P Q z -0.0141075 Peri. 300.01392 -0.56464899 -0.81557309 +/-0.0085414 Node 188.64020 +0.64452620 -0.53150375 e 1.0040000 Incl. 57.38432 -0.51551673 +0.22878875 From 62 observations 2021 July 26-Aug. 3, mean residual 0".32. --