April 07, 2009、12:35:31 UT Orbital elements: C/2009 F6 (SWAN) T 2009 May 6.76074 TT Sato q 1.2789406 (2000.0) P Q Peri. 129.08709 -0.03609542 -0.15980082 Node 278.44117 +0.27197969 +0.94830012 e 1.0 Incl. 85.78299 +0.96162580 -0.27420900 From 59 observations 2009 Apr. 6-7, mean residual 0".50. Residuals in seconds of arc (or two decimals in units of degrees) 090329 500(0.92+ 0.22+)X 090406 114 0.1- 0.1+ 090406 B42 1.4+ 0.7- 090331 500(0.76+ 0.20+)X 090406 114 0.1- 0.2+ 090406 B42 1.2+ 0.7+ 090401 500(0.87+ 0.22+)X 090406 114 0.3- 0.2+ 090406 J41 0.2+ 0.6- 090403 500(0.42+ 0.03+)X 090406 235 0.5- 0.4+ 090406 J41 0.5+ 0.3- 090404 500(0.76+ 0.09+)X 090406 900 0.2- 0.4+ 090406 J41 0.1- 0.1- 090406 493 0.4+ 0.5- 090406 235 0.7- 0.7+ 090406 J41 0.2+ 0.8+ 090406 493 0.5+ 0.6- 090406 900 0.2- 0.5+ 090407 114 0.3- 0.2- 090406 493 0.4+ 0.9- 090406 595 0.0 0.0 090407 114 0.3- 0.1- 090406 493 0.0 0.7- 090406 595 0.4- 0.3+ 090407 114 0.1+ 0.2- 090406 493 0.5+ 0.5- 090406 213 0.5+ 0.2- 090407 114 0.2- 0.4- 090406 H06 0.4- 0.2+ 090406 213 0.1- 0.0 090407 114 0.5+ 0.9- 090406 H06 0.3+ 1.7+ 090406 595 0.9- 0.8+ 090407 A17 0.0 0.0 090406 H06 1.0- 0.7+ 090406 213 0.0 0.4+ 090407 114 0.1- 0.4- 090406 H06 1.7- 0.3+ 090406 587 0.2+ 0.0 090407 114 0.1- 0.4- 090406 H06 0.6+ 0.5- 090406 587 0.4+ 0.7- 090407 114 0.3- 0.2- 090406 114 0.3- 0.1- 090406 595 0.7- 0.0 090407 114 0.0 0.3- 090406 114 0.2- 0.2+ 090406 587 0.3+ 0.1- 090407 114 0.1- 0.4- 090406 114 0.2- 0.2- 090406 587 0.5+ 0.7+ 090407 A17 0.0 0.3- 090406 114 0.1+ 0.1+ 090406 204 0.2+ 0.1- 090407 A17 0.4- 0.0 090406 114 0.3- 0.0 090406 204 0.0 0.3- 090407 A17 0.4+ 0.2- 090406 114 0.1+ 0.2+ 090406 204 0.0 0.1+ 090406 114 0.1- 0.1+ 090406 B42 1.2+ 1.2+ Comet C/2009 F6 (SWAN) T = 2009 May 6.76074 TT Peri. = 129.08709 Node = 278.44117 2000.0 Incl. = 85.78299 q = 1.2789406 AU e = 1.0 m1 = 6.0 + 5 log(Delta) + 10.0 log(r) 0h TT R.A.(2000) Decl. Delta r Daily motion m1 Elong. 2009/09 h m 。 ， m ， 。 Mar. 30 23 00.53 +51 32.5 1.779 1.400 +6.96 +30.6 8.7 51.7 Mar. 31 23 07.49 +52 03.1 1.776 1.394 +7.13 +29.4 8.7 51.5 Apr. 1 23 14.62 +52 32.5 1.773 1.388 +7.29 +28.1 8.7 51.3 Apr. 2 23 21.91 +53 00.6 1.771 1.383 +7.45 +26.7 8.6 51.1 Apr. 3 23 29.37 +53 27.3 1.769 1.377 +7.61 +25.2 8.6 50.9 Apr. 4 23 36.97 +53 52.5 1.767 1.372 +7.76 +23.6 8.6 50.6 Apr. 5 23 44.73 +54 16.1 1.766 1.366 +7.90 +22.0 8.6 50.4 Apr. 6 23 52.63 +54 38.1 1.765 1.361 +8.03 +20.3 8.6 50.1 Apr. 7 00 00.65 +54 58.4 1.765 1.356 +8.14 +18.5 8.6 49.8 Apr. 8 00 08.80 +55 16.9 1.766 1.351 +8.25 +16.7 8.5 49.5 Apr. 9 00 17.05 +55 33.6 1.766 1.346 +8.34 +14.8 8.5 49.2 Apr. 10 00 25.39 +55 48.5 1.768 1.342 +8.42 +12.9 8.5 48.9 Apr. 11 00 33.81 +56 01.4 1.769 1.337 +8.48 +10.9 8.5 48.6 Apr. 12 00 42.29 +56 12.3 1.771 1.333 +8.53 +9.0 8.5 48.2 Apr. 13 00 50.82 +56 21.3 1.774 1.329 +8.55 +7.0 8.5 47.9 Apr. 14 00 59.38 +56 28.3 1.777 1.325 +8.56 +5.0 8.5 47.5 Apr. 15 01 07.94 +56 33.2 1.780 1.321 +8.56 +3.0 8.5 47.1 Apr. 16 01 16.50 +56 36.2 1.784 1.317 +8.53 +1.0 8.5 46.7 Apr. 17 01 25.03 +56 37.3 1.788 1.314 +8.49 -0.9 8.4 46.3 Apr. 18 01 33.51 +56 36.3 1.793 1.310 +8.42 -2.9 8.4 45.9 Apr. 19 01 41.94 +56 33.5 1.798 1.307 +8.35 -4.7 8.4 45.5 Apr. 20 01 50.28 +56 28.7 1.803 1.304 +8.26 -6.6 8.4 45.0 Apr. 21 01 58.54 +56 22.2 1.809 1.301 +8.15 -8.3 8.4 44.6 Apr. 22 02 06.69 +56 13.9 1.815 1.298 +8.03 -10.0 8.4 44.1 Apr. 23 02 14.72 +56 03.8 1.822 1.296 +7.90 -11.7 8.4 43.7 Apr. 24 02 22.62 +55 52.2 1.828 1.294 +7.76 -13.2 8.4 43.2 Apr. 25 02 30.37 +55 38.9 1.836 1.291 +7.61 -14.7 8.4 42.7 Apr. 26 02 37.98 +55 24.2 1.843 1.289 +7.45 -16.1 8.4 42.2 Apr. 27 02 45.43 +55 08.0 1.851 1.288 +7.29 -17.5 8.4 41.7 Apr. 28 02 52.72 +54 50.6 1.859 1.286 +7.12 -18.7 8.4 41.2 Apr. 29 02 59.84 +54 31.8 1.867 1.284 +6.95 -19.9 8.4 40.7 Apr. 30 03 06.79 +54 11.9 1.876 1.283 +6.78 -21.0 8.4 40.2 --