Ephemeris of 12P/Pons-Brooks at 0 hrs UTC (J2000) last astrometry was on 2023 Jul 19 (as at 2023 Jul 28) T 2024 Apr 21.1392 TT q 0.780942 Peri. 198.9863 z 0.058199 Node 255.8529 e 0.954550 Incl. 74.1903 Ref: MPEC 2023-O39 y m d h m s o ' " delta RSun Elong Phase Mag "/min PA 2024 Jan 15 20 19 21.0 37 58 20 2.100 1.818 59.9 27.9 10.5 1.64 88.0 2024 Jan 16 20 22 42.1 37 59 43 2.089 1.804 59.7 28.1 10.4 1.66 88.0 2024 Jan 17 20 26 5.8 38 1 7 2.077 1.791 59.5 28.2 10.4 1.68 88.0 2024 Jan 18 20 29 32.1 38 2 31 2.066 1.778 59.3 28.4 10.3 1.70 88.0 2024 Jan 19 20 33 1.1 38 3 55 2.055 1.765 59.1 28.6 10.3 1.73 88.1 2024 Jan 20 20 36 32.7 38 5 18 2.044 1.752 58.9 28.7 10.2 1.75 88.1 2024 Jan 21 20 40 7.0 38 6 39 2.033 1.739 58.7 28.9 10.1 1.77 88.2 2024 Jan 22 20 43 44.0 38 7 58 2.022 1.726 58.5 29.1 10.1 1.79 88.3 2024 Jan 23 20 47 23.8 38 9 13 2.012 1.712 58.3 29.3 10.0 1.81 88.4 2024 Jan 24 20 51 6.3 38 10 25 2.001 1.699 58.0 29.4 10.0 1.83 88.5 2024 Jan 25 20 54 51.5 38 11 32 1.990 1.686 57.8 29.6 9.9 1.86 88.6 2024 Jan 26 20 58 39.6 38 12 33 1.980 1.673 57.6 29.8 9.8 1.88 88.8 2024 Jan 27 21 2 30.4 38 13 29 1.969 1.659 57.3 30.0 9.8 1.90 88.9 2024 Jan 28 21 6 24.1 38 14 17 1.959 1.646 57.1 30.1 9.7 1.92 89.1 2024 Jan 29 21 10 20.5 38 14 57 1.948 1.633 56.8 30.3 9.6 1.95 89.3 2024 Jan 30 21 14 19.8 38 15 28 1.938 1.620 56.6 30.5 9.6 1.97 89.5 2024 Jan 31 21 18 21.9 38 15 50 1.928 1.606 56.3 30.7 9.5 1.99 89.7 2024 Feb 1 21 22 26.9 38 16 1 1.918 1.593 56.0 30.9 9.4 2.01 89.9 2024 Feb 2 21 26 34.6 38 16 0 1.908 1.580 55.8 31.0 9.4 2.04 90.1 2024 Feb 3 21 30 45.2 38 15 47 1.898 1.567 55.5 31.2 9.3 2.06 90.4 2024 Feb 4 21 34 58.6 38 15 21 1.889 1.553 55.2 31.4 9.2 2.08 90.6 2024 Feb 5 21 39 14.7 38 14 39 1.879 1.540 54.9 31.6 9.2 2.11 90.9 2024 Feb 6 21 43 33.7 38 13 42 1.870 1.527 54.6 31.8 9.1 2.13 91.2 2024 Feb 7 21 47 55.3 38 12 28 1.860 1.513 54.3 31.9 9.0 2.15 91.5 2024 Feb 8 21 52 19.7 38 10 57 1.851 1.500 53.9 32.1 9.0 2.18 91.8 2024 Feb 9 21 56 46.7 38 9 7 1.842 1.487 53.6 32.3 8.9 2.20 92.2 2024 Feb 10 22 1 16.3 38 6 56 1.833 1.473 53.3 32.5 8.8 2.22 92.5 2024 Feb 11 22 5 48.6 38 4 25 1.825 1.460 52.9 32.6 8.8 2.25 92.9 2024 Feb 12 22 10 23.3 38 1 31 1.816 1.447 52.6 32.8 8.7 2.27 93.3 2024 Feb 13 22 15 0.5 37 58 14 1.808 1.434 52.2 33.0 8.6 2.29 93.6 2024 Feb 14 22 19 40.1 37 54 32 1.799 1.420 51.9 33.1 8.6 2.31 94.0 2024 Feb 15 22 24 22.0 37 50 25 1.791 1.407 51.5 33.3 8.5 2.34 94.5 2024 Feb 16 22 29 6.1 37 45 50 1.783 1.394 51.1 33.5 8.4 2.36 94.9 2024 Feb 17 22 33 52.4 37 40 47 1.775 1.381 50.7 33.6 8.3 2.38 95.3 2024 Feb 18 22 38 40.8 37 35 14 1.768 1.368 50.3 33.8 8.3 2.40 95.8 2024 Feb 19 22 43 31.2 37 29 11 1.760 1.354 49.9 33.9 8.2 2.42 96.2 2024 Feb 20 22 48 23.5 37 22 36 1.753 1.341 49.5 34.1 8.1 2.44 96.7 2024 Feb 21 22 53 17.5 37 15 29 1.746 1.328 49.1 34.2 8.1 2.46 97.2 2024 Feb 22 22 58 13.3 37 7 47 1.739 1.315 48.6 34.4 8.0 2.49 97.7 2024 Feb 23 23 3 10.6 36 59 31 1.732 1.302 48.2 34.5 7.9 2.51 98.2 2024 Feb 24 23 8 9.4 36 50 38 1.726 1.289 47.8 34.6 7.8 2.53 98.7 2024 Feb 25 23 13 9.6 36 41 8 1.719 1.276 47.3 34.8 7.8 2.55 99.2 2024 Feb 26 23 18 10.9 36 31 1 1.713 1.263 46.8 34.9 7.7 2.56 99.8 2024 Feb 27 23 23 13.4 36 20 14 1.707 1.250 46.4 35.0 7.6 2.58 100.3 2024 Feb 28 23 28 16.8 36 8 48 1.701 1.237 45.9 35.1 7.5 2.60 100.9 2024 Feb 29 23 33 21.0 35 56 41 1.696 1.224 45.4 35.2 7.5 2.62 101.4 2024 Mar 1 23 38 25.9 35 43 53 1.690 1.211 44.9 35.3 7.4 2.64 102.0 2024 Mar 2 23 43 31.4 35 30 23 1.685 1.198 44.4 35.4 7.3 2.66 102.6 2024 Mar 3 23 48 37.2 35 16 11 1.680 1.186 43.9 35.4 7.2 2.67 103.1 2024 Mar 4 23 53 43.3 35 1 15 1.675 1.173 43.4 35.5 7.2 2.69 103.7 2024 Mar 5 23 58 49.5 34 45 35 1.671 1.161 42.9 35.6 7.1 2.70 104.3 2024 Mar 6 0 3 55.7 34 29 12 1.666 1.148 42.4 35.6 7.0 2.72 104.9 2024 Mar 7 0 9 1.7 34 12 4 1.662 1.136 41.8 35.7 6.9 2.73 105.5 2024 Mar 8 0 14 7.4 33 54 11 1.658 1.123 41.3 35.7 6.9 2.75 106.1 2024 Mar 9 0 19 12.5 33 35 33 1.654 1.111 40.8 35.7 6.8 2.76 106.7 2024 Mar 10 0 24 17.1 33 16 10 1.650 1.099 40.2 35.7 6.7 2.77 107.3 2024 Mar 11 0 29 20.9 32 56 1 1.647 1.087 39.7 35.7 6.6 2.79 107.9 2024 Mar 12 0 34 23.8 32 35 6 1.644 1.075 39.1 35.7 6.5 2.80 108.5 2024 Mar 13 0 39 25.6 32 13 26 1.641 1.063 38.6 35.7 6.5 2.81 109.1 2024 Mar 14 0 44 26.2 31 51 0 1.638 1.051 38.0 35.6 6.4 2.82 109.7 2024 Mar 15 0 49 25.6 31 27 49 1.635 1.039 37.4 35.6 6.3 2.83 110.3 2024 Mar 16 0 54 23.5 31 3 53 1.632 1.028 36.9 35.5 6.2 2.84 110.9 2024 Mar 17 0 59 19.8 30 39 11 1.630 1.017 36.3 35.4 6.2 2.85 111.5 2024 Mar 18 1 4 14.4 30 13 44 1.628 1.005 35.7 35.3 6.1 2.85 112.1 2024 Mar 19 1 9 7.3 29 47 33 1.626 0.994 35.2 35.2 6.0 2.86 112.7 2024 Mar 20 1 13 58.2 29 20 38 1.624 0.983 34.6 35.1 5.9 2.87 113.4 2024 Mar 21 1 18 47.2 28 52 59 1.622 0.973 34.0 35.0 5.9 2.87 114.0 2024 Mar 22 1 23 34.0 28 24 38 1.621 0.962 33.5 34.8 5.8 2.88 114.6 2024 Mar 23 1 28 18.7 27 55 33 1.619 0.952 32.9 34.7 5.7 2.88 115.2 2024 Mar 24 1 33 1.2 27 25 47 1.618 0.941 32.3 34.5 5.7 2.89 115.8 2024 Mar 25 1 37 41.3 26 55 20 1.617 0.931 31.8 34.3 5.6 2.89 116.3 2024 Mar 26 1 42 19.1 26 24 13 1.616 0.922 31.2 34.1 5.5 2.89 116.9 2024 Mar 27 1 46 54.4 25 52 26 1.615 0.912 30.7 33.9 5.4 2.90 117.5 2024 Mar 28 1 51 27.2 25 20 1 1.614 0.903 30.1 33.7 5.4 2.90 118.1 2024 Mar 29 1 55 57.5 24 46 58 1.613 0.894 29.6 33.5 5.3 2.90 118.7 2024 Mar 30 2 0 25.1 24 13 18 1.613 0.885 29.1 33.3 5.2 2.90 119.2 2024 Mar 31 2 4 50.2 23 39 3 1.612 0.876 28.6 33.0 5.2 2.90 119.8 2024 Apr 1 2 9 12.6 23 4 12 1.612 0.868 28.1 32.8 5.1 2.90 120.3 2024 Apr 2 2 13 32.4 22 28 49 1.611 0.860 27.6 32.5 5.1 2.90 120.9 2024 Apr 3 2 17 49.4 21 52 53 1.611 0.853 27.1 32.3 5.0 2.90 121.4 2024 Apr 4 2 22 3.8 21 16 25 1.611 0.845 26.6 32.0 4.9 2.89 121.9 2024 Apr 5 2 26 15.6 20 39 27 1.611 0.838 26.2 31.8 4.9 2.89 122.4 2024 Apr 6 2 30 24.6 20 2 0 1.610 0.832 25.8 31.5 4.8 2.89 122.9 2024 Apr 7 2 34 31.0 19 24 6 1.610 0.826 25.4 31.3 4.8 2.88 123.4 2024 Apr 8 2 38 34.7 18 45 45 1.610 0.820 25.0 31.0 4.7 2.88 123.9 2024 Apr 9 2 42 35.8 18 6 58 1.610 0.814 24.6 30.8 4.7 2.88 124.4 2024 Apr 10 2 46 34.2 17 27 47 1.610 0.809 24.3 30.6 4.7 2.87 124.8 2024 Apr 11 2 50 30.1 16 48 14 1.610 0.804 24.0 30.4 4.6 2.87 125.3 2024 Apr 12 2 54 23.5 16 8 19 1.609 0.800 23.7 30.2 4.6 2.86 125.7 2024 Apr 13 2 58 14.4 15 28 3 1.609 0.796 23.4 30.0 4.5 2.85 126.1 2024 Apr 14 3 2 2.8 14 47 29 1.609 0.793 23.2 29.9 4.5 2.85 126.6 2024 Apr 15 3 5 48.8 14 6 37 1.609 0.790 23.0 29.8 4.5 2.84 126.9 2024 Apr 16 3 9 32.5 13 25 29 1.608 0.787 22.9 29.7 4.5 2.84 127.3 2024 Apr 17 3 13 14.0 12 44 6 1.608 0.785 22.8 29.6 4.5 2.83 127.7 2024 Apr 18 3 16 53.3 12 2 28 1.607 0.783 22.7 29.6 4.4 2.82 128.0