Orbital parameters of (99942) Apophis, solution B improved coordinates (AU) and velocities (AU/day) 2455600.500000000000000 4.732912523657640D-001 6.896973154066540D-001 2.687091819236660D-001 -1.366809019545473D-002 1.218480764793880D-002 4.182076655690677D-003 mean errors of coordinates and velocities 0.1738160037D-06 0.1424261885D-06 0.5149281122D-07 0.2516513472D-08 0.3472987116D-08 0.1341876896D-08 covariance matrix for coordinates and velocities (DSIG= 1.007761139367950) .29748448D-13 -.24320201D-13 -.87136553D-14 .43052095D-15 .59285122D-15 .22805881D-15 -.24320201D-13 .19973974D-13 .71357770D-14 -.35207550D-15 -.48691889D-15 -.18717511D-15 -.87136553D-14 .71357770D-14 .26108264D-14 -.12596400D-15 -.17427460D-15 -.67019847D-16 .43052095D-15 -.35207550D-15 -.12596400D-15 .62356726D-17 .85853994D-17 .33055049D-17 .59285122D-15 -.48691889D-15 -.17427460D-15 .85853994D-17 .11876573D-16 .45623013D-17 .22805881D-15 -.18717511D-15 -.67019847D-16 .33055049D-17 .45623013D-17 .17730057D-17 elements M,Peri,Node,Incl,e,n (degrees with the exception of e) 2455600.500000000000000 65.030550458343190 126.424932033131800 204.431366804000500 3.331902048633974 1.911152791794420D-001 1.112755724136753 mean errors of elements 1.217838934096077D-005 9.176789635210888D-006 9.079457196909318D-006 4.064690508734809D-007 1.546600957114321D-008 5.845631784120400D-009