OAA computing section circular NK 1647 C/2007 P1 (McNaught)
The following improved orbital elements, by S. Nakano, are from 13 observations 2007 Aug. 7 to Aug. 14. The mean residual is +/- 0.69 arc second. See an orbit on YC 2566. T = 2007 Apr. 3.86201 +/- 0.40541 (m.e.) TT Peri. = 89.60135 +/- 0.37209 Node = 186.74670 +/- 0.21315 (2000.0) Inc. = 118.85454 +/- 0.22569 q = 0.5142338 +/- 0.0051579 AU e = 1.0 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2007/ 070808 E12 0.8+ 1.1+ 070809 E12 0.5+ 0.1+ 070807 E12 0.1+ 0.8- 070808 E12 (0.1- 4.4-) 070809 428 0.8- 0.6- 070807 E12 0.1- 0.2+ 070808 E12 (2.4- 1.6+) 070809 428 0.8- 1.0- 070807 E12 (0.2- 3.1-) 070808 E12 0.1- 0.5- 070814 E12 0.6- 0.6+ 070807 E12 (1.4+ 4.3-) 070808 E12 0.1+ 1.0+ 070814 E12 0.7+ 0.6- 070808 E12 (0.8- 5.3-) 070808 E12 0.1+ 1.1+ 070808 E12 0.4- 1.3- 070809 E12 0.6+ 0.7+ ( ) -------- Rejected Obs.
Director, Computing Section Syuichi Nakano 2008 Aug. 1