May 10, 2010A13:06:10 UT Orbit-1 Orbital elements: C/2010 J2 (McNaught) T 2010 Apr. 10.0838 TT Sato q 3.438833 (2000.0) P Q Peri. 352.5100 +0.7186614 -0.3255394 Node 312.0743 -0.5873297 -0.7572217 e 1.0 Incl. 124.1273 -0.3722492 +0.5662503 From 27 observations 2010 May 8-9, mean residual 0".47. Residuals in seconds of arc 100508 E12 0.1- 0.4+ 100509 H01 0.2+ 0.8+ 100509 H01 0.3+ 0.8+ 100508 E12 0.6- 0.1- 100509 H06 0.1+ 0.9- 100509 474 0.0 0.1+ 100508 E12 1.0+ 0.3- 100509 H06 0.4- 0.9- 100509 474 0.1- 0.0 100509 I19 0.1+ 0.2- 100509 854 0.3- 0.1- 100509 474 0.2+ 0.3+ 100509 I19 1.0+ 0.4+ 100509 H01 0.2+ 0.8+ 100509 474 0.0 0.1+ 100509 I19 0.2+ 0.2+ 100509 H06 0.5- 0.7- 100509 D96 0.2+ 0.8+ 100509 H21 0.7- 0.3- 100509 854 0.1- 0.3- 100509 D96 0.0 0.7+ 100509 H21 0.7- 0.6- 100509 H01 0.2+ 0.7+ 100509 D90 0.3+ 0.6- 100509 H21 0.3- 0.4- 100509 854 0.2- 0.1+ 100509 D90 0.1+ 0.7- Orbit-2 Orbital elements: C/2010 J2 (McNaught) T 2009 Oct. 10.6884 TT Sato q 2.039954 (2000.0) P Q Peri. 285.8402 +0.4845724 +0.5410009 Node 310.7473 +0.3996940 -0.8359219 e 1.0 Incl. 114.8606 -0.7780966 -0.0924806 From 27 observations 2010 May 8-9, mean residual 0".47. Residuals in seconds of arc 100508 E12 0.2- 0.6+ 100509 H01 0.2+ 0.8+ 100509 H01 0.3+ 0.8+ 100508 E12 0.6- 0.0 100509 H06 0.1+ 0.8- 100509 474 0.0 0.0 100508 E12 1.0+ 0.3- 100509 H06 0.4- 0.8- 100509 474 0.1- 0.1- 100509 I19 0.1+ 0.5- 100509 854 0.3- 0.0 100509 474 0.2+ 0.2+ 100509 I19 1.0+ 0.1+ 100509 H01 0.2+ 0.8+ 100509 474 0.1- 0.0 100509 I19 0.2+ 0.0 100509 H06 0.5- 0.7- 100509 D96 0.2+ 0.8+ 100509 H21 0.6- 0.3- 100509 854 0.1- 0.2- 100509 D96 0.0 0.7+ 100509 H21 0.7- 0.6- 100509 H01 0.2+ 0.8+ 100509 D90 0.3+ 0.5- 100509 H21 0.3- 0.4- 100509 854 0.2- 0.1+ 100509 D90 0.1+ 0.5- --