September 21, 2011A21:52:37 UT Orbital elements: C/2011 S1 (Gibbs) T 2012 Dec. 13.7624 TT Sato q 5.008292 (2000.0) P Q Peri. 170.3075 +0.7484245 -0.6625488 Node 231.2301 +0.6059015 +0.7013415 e 1.0 Incl. 2.1927 +0.2697113 +0.2629623 From 22 observations 2011 Sept. 18-21, mean residual 0".45. Residuals in seconds of arc 110918 G96 0.7+ 0.8- 110919 G96 0.0 0.2+ 110920 F65 0.2- 0.1+ 110918 G96 0.4- 0.2- 110919 G96 0.1- 0.3- 110920 F65 0.2- 0.1+ 110918 G96 0.7+ 0.2- 110919 G96 0.7- 0.4- 110920 F65 0.7+ 0.0 110918 G96 0.5- 0.1+ 110920 807 0.5+ 0.5+ 110921 E10 0.0 1.0- 110918 G96 0.4- 0.5- 110920 807 0.5+ 0.5+ 110921 E10 0.1+ 0.2- 110918 G96 0.1- 0.1+ 110920 291 1.0- 0.4+ 110921 E10 0.2+ 0.3- 110918 G96 0.5+ 0.4+ 110920 291 0.2+ 0.5+ 110919 G96 0.2+ 0.6+ 110920 291 0.7- 0.2+ --