September 24, 2008A12:30:29 UT Orbital elements: P/2008 S1 = 2008 JK (Catalina-McNaught) Epoch 2008 Oct. 1.0 TT = JDT 2454740.5 T 2008 Oct. 1.81421 TT Sato q 1.1905420 (2000.0) P Q n 0.14565040 Peri. 203.61207 +0.69405373 +0.67777410 a 3.5776260 Node 111.37494 -0.61200686 +0.73301853 e 0.6672257 Incl. 15.10838 -0.37912666 +0.05749865 P 6.77 From 42 observations 2008 May 2-Sept. 22, mean residual 0".49. Residuals in seconds of arc 080502 703 0.3- 0.8- 080917 E12 0.2- 0.3+ 080919 E12 0.1- 0.2+ 080502 703 1.1+ 1.1+ 080918 H55 0.2+ 0.4+ 080919 E12 0.0 0.1+ 080502 703 0.3- 1.2+ 080918 H55 0.1+ 0.3+ 080919 423 1.0+ 0.3- 080502 703 0.5+ 0.2- 080918 H55 0.4+ 0.4+ 080919 423 0.6- 0.0 080502 703 0.7- 0.4- 080918 673 0.2+ 0.6- 080920 423 0.3+ 0.5- 080502 703 0.4- 0.2- 080918 673 0.3- 0.1- 080920 E12 0.1- 0.2+ 080502 703 0.1- 0.3+ 080918 673 0.5+ 0.5- 080920 E12 0.1+ 0.0 080502 703 0.2- 0.1- 080918 673 0.2+ 0.2- 080920 423 0.6+ 0.2+ 080502 J95 0.0 0.1+ 080918 E12 0.0 0.1- 080921 E12 0.2+ 0.2+ 080502 J95 0.2- 0.1- 080918 E12 0.0 0.1- 080921 423 0.7+ 0.3+ 080502 J95 0.7+ 0.8- 080918 D90 0.6- 0.6- 080921 423 0.6+ 0.1- 080917 E12 0.3- 0.8+ 080918 D90 0.5- 0.3+ 080922 E85 0.3+ 0.3- 080917 E12 0.0 0.4+ 080918 E12 0.0 0.4- 080922 E85 1.1- 0.6+ 080917 E12 0.6+ 0.4- 080918 D90 1.7- 0.8- 080922 E85 0.1- 0.2+ September 23, 2008A00:18:32 UT Orbital elements: P/2008 S1 = 2008 JK (Catalina-McNaught) Epoch 2008 Oct. 1.0 TT = JDT 2454740.5 T 2008 Oct. 1.81865 TT Sato q 1.1904487 (2000.0) P Q n 0.14582220 Peri. 203.61770 +0.69418235 +0.67765710 a 3.5748154 Node 111.37963 -0.61188699 +0.73311958 e 0.6669902 Incl. 15.10625 -0.37908465 +0.05758943 P 6.76 From 32 observations 2008 May 2-Sept. 22, mean residual 0".45. September 19, 2008A14:04:21 UT Orbital elements: C/2008 S1 (McNaught) T 2008 Sept. 20.8938 TT Sato q 1.354606 (2000.0) P Q Peri. 191.8919 +0.4349981 +0.8492203 Node 104.5170 -0.7987135 +0.5173995 e 1.0 Incl. 18.0114 -0.4157323 -0.1054638 From 17 observations 2008 Sept. 17-18, mean residual 0".53. --