Orbital elements: C/2002 C1 (Ikeya-Zhang) Epoch 2002 Mar. 27.0 TT = JDT 2452360.5 T 2002 Mar. 18.97967 TT q 0.5070672 (2000.0) P Q n 0.00268629 Peri. 34.66843 -0.54914841 -0.69068555 z +0.0195119 Node 93.36927 +0.61958732 -0.71429851 e 0.9901062 Incl. 28.12100 +0.56084542 +0.11283222 P 366.90 From 362 observations 2002 Feb. 1-Mar. 8, mean residual 0".66. Ephemeris: Date (JST) R.A.(2000) Decl. Delta r m1 Elong. h/A h m h m o ' o o o 2002 Feb. 28 19 26 01 00.33 -00 23.7 1.174 0.667 5.6 34.6 13.4/ 80.5 2002 Mar. 1 19 27 01 02.35 +00 28.1 1.156 0.653 5.5 34.3 13.3/ 81.6 2002 Mar. 2 19 27 01 04.36 +01 21.2 1.138 0.639 5.3 34.0 13.2/ 82.7 2002 Mar. 3 19 28 01 06.34 +02 15.6 1.120 0.626 5.2 33.8 13.2/ 83.9 2002 Mar. 4 19 29 01 08.29 +03 11.4 1.102 0.612 5.1 33.5 13.1/ 85.1 2002 Mar. 5 19 30 01 10.20 +04 08.6 1.083 0.600 5.0 33.2 13.1/ 86.3 2002 Mar. 6 19 31 01 12.07 +05 07.2 1.064 0.588 4.8 33.0 13.0/ 87.5 2002 Mar. 7 19 31 01 13.88 +06 07.3 1.045 0.577 4.7 32.7 12.9/ 88.8 2002 Mar. 8 19 32 01 15.62 +07 08.9 1.026 0.566 4.6 32.5 12.9/ 90.1 2002 Mar. 9 19 33 01 17.28 +08 12.0 1.006 0.556 4.5 32.3 12.8/ 91.4 2002 Mar. 10 19 34 01 18.86 +09 16.6 0.986 0.547 4.3 32.1 12.7/ 92.8 2002 Mar. 11 19 35 01 20.33 +10 22.6 0.967 0.538 4.2 31.8 12.6/ 94.2 2002 Mar. 12 19 35 01 21.70 +11 30.1 0.947 0.531 4.1 31.6 12.5/ 95.6 2002 Mar. 13 19 36 01 22.93 +12 39.1 0.927 0.524 4.0 31.4 12.4/ 97.1 2002 Mar. 14 19 37 01 24.02 +13 49.4 0.907 0.519 3.9 31.2 12.3/ 98.6 2002 Mar. 15 19 38 01 24.95 +15 01.1 0.887 0.514 3.9 31.0 12.1/100.1 2002 Mar. 16 19 39 01 25.70 +16 14.1 0.867 0.511 3.8 30.9 11.9/101.7 2002 Mar. 17 19 39 01 26.28 +17 28.3 0.848 0.508 3.7 30.7 11.7/103.3 2002 Mar. 18 19 40 01 26.64 +18 43.6 0.828 0.507 3.6 30.6 11.5/105.0 2002 Mar. 19 19 41 01 26.80 +19 60.0 0.809 0.507 3.6 30.5 11.2/106.7 2002 Mar. 20 19 42 01 26.72 +21 17.3 0.790 0.508 3.5 30.4 11.0/108.4 2002 Mar. 21 19 43 01 26.41 +22 35.5 0.771 0.511 3.5 30.3 10.7/110.2 2002 Mar. 22 19 44 01 25.84 +23 54.4 0.752 0.514 3.5 30.3 10.3/111.9 2002 Mar. 23 19 44 01 25.01 +25 14.0 0.734 0.518 3.5 30.3 9.9/113.8 2002 Mar. 24 19 45 01 23.91 +26 34.1 0.717 0.524 3.5 30.3 9.6/115.6 2002 Mar. 25 19 46 01 22.53 +27 54.7 0.700 0.530 3.5 30.4 9.1/117.5 2002 Mar. 26 19 47 01 20.86 +29 15.6 0.683 0.538 3.5 30.6 8.7/119.5 2002 Mar. 27 19 48 01 18.90 +30 36.8 0.667 0.546 3.5 30.9 8.2/121.4 2002 Mar. 28 19 49 01 16.63 +31 58.2 0.651 0.555 3.5 31.2 7.8/123.4 2002 Mar. 29 19 49 01 14.04 +33 19.7 0.636 0.565 3.5 31.6 7.3/125.5 2002 Mar. 30 19 50 01 11.14 +34 41.3 0.621 0.576 3.6 32.0 6.8/127.5 2002 Mar. 31 19 51 01 07.90 +36 02.9 0.607 0.587 3.6 32.6 6.3/129.6 2002 Apr. 1 19 52 01 04.32 +37 24.3 0.593 0.599 3.6 33.2 5.8/131.7 2002 Apr. 2 19 53 01 00.39 +38 45.6 0.580 0.612 3.7 34.0 5.3/133.9 2002 Apr. 3 19 54 00 56.08 +40 06.6 0.568 0.625 3.7 34.8 4.8/136.0 2002 Apr. 5 04 25 00 49.67 +41 55.9 0.551 0.643 3.8 36.1 6.7/223.1 2002 Apr. 6 04 23 00 44.44 +43 15.9 0.540 0.657 3.8 37.2 8.6/223.0 2002 Apr. 7 04 22 00 38.77 +44 35.4 0.529 0.671 3.9 38.3 10.6/222.9 2002 Apr. 8 04 20 00 32.64 +45 54.3 0.519 0.686 3.9 39.6 12.6/222.7 2002 Apr. 9 04 19 00 26.01 +47 12.3 0.509 0.701 4.0 40.9 14.6/222.5 2002 Apr. 10 04 17 00 18.85 +48 29.4 0.499 0.717 4.0 42.3 16.7/222.3 2002 Apr. 11 04 16 00 11.12 +49 45.4 0.490 0.732 4.1 43.9 18.7/222.1 2002 Apr. 12 04 14 00 02.79 +50 59.9 0.482 0.748 4.2 45.4 20.8/221.8 2002 Apr. 13 04 13 23 53.79 +52 12.7 0.474 0.764 4.2 47.1 23.0/221.5 2002 Apr. 14 04 12 23 44.09 +53 23.5 0.466 0.780 4.3 48.9 25.1/221.2 2002 Apr. 15 04 10 23 33.64 +54 31.8 0.459 0.796 4.3 50.7 27.3/220.8 2002 Apr. 16 04 09 23 22.37 +55 37.2 0.452 0.812 4.4 52.6 29.5/220.3 2002 Apr. 17 04 07 23 10.26 +56 39.2 0.445 0.829 4.4 54.5 31.8/219.8 2002 Apr. 18 04 06 22 57.26 +57 37.1 0.439 0.846 4.5 56.6 34.0/219.2 2002 Apr. 19 04 04 22 43.35 +58 30.3 0.434 0.862 4.5 58.6 36.3/218.5 2002 Apr. 20 04 03 22 28.51 +59 18.0 0.429 0.879 4.6 60.8 38.6/217.7 2002 Apr. 21 04 01 22 12.78 +59 59.5 0.424 0.896 4.7 63.0 40.9/216.8 2002 Apr. 22 04 00 21 56.20 +60 34.0 0.420 0.912 4.7 65.2 43.2/215.8 2002 Apr. 23 03 58 21 38.85 +61 00.7 0.416 0.929 4.8 67.5 45.5/214.6 2002 Apr. 24 03 57 21 20.88 +61 19.0 0.413 0.946 4.8 69.8 47.8/213.3 2002 Apr. 25 03 56 21 02.45 +61 28.2 0.410 0.963 4.9 72.2 50.1/211.7 2002 Apr. 26 03 54 20 43.75 +61 27.9 0.408 0.980 5.0 74.6 52.4/209.9 2002 Apr. 27 03 53 20 24.99 +61 18.0 0.406 0.997 5.0 77.0 54.6/207.8 2002 Apr. 28 03 52 20 06.41 +60 58.3 0.405 1.014 5.1 79.4 56.8/205.4 2002 Apr. 29 03 50 19 48.21 +60 29.1 0.405 1.031 5.2 81.9 58.9/202.6 2002 Apr. 30 03 49 19 30.58 +59 50.7 0.404 1.048 5.2 84.4 61.0/199.3