Solar System
Dynamics &
Planetology
Group 		C/2006 K3 McNaught


SSDP Cometary Note C2006K3N5-001

Comet C/2006 K3 McNaught

number of observations 207
number of residuals 402
data interval 2006 May 22 — 2008 Jan. 26
rms [arcsec] 0.54
orbit quality class 1a

Osculating orbital elements (heliocentric; ecliptic J2000.0)

Epoch (TT) 20070301.0 = JD 2454160.5
time of perihelion passage (TT) 20070313.363489 ± 0.000363
perihelion distance 2.50143944 ± 0.00000237
eccentricity 1.00085639 ± 0.00000599
argument of perihelion[deg] 328.075919 ± 0.000136
longitude of the ascending node [deg] 49.402938 ± 0.000029
inclination[deg] 92.619710 ± 0.000020
inverse semimajor axis [10-6 au-1] -342.36 ± 2.40

Nongravitational parameters [10-8 au/day2] A1 = 15.69 ± 1.67 A2 = 2.25 ± 2.45 A3 = -0.209 ± 0.576

Note: Epoch is given in a format: yyyymmdd.d, time of perihelion passage in a format of yyyymmdd.dddddd.

Original orbital elements (barycentric; at 250 au from the Sun)

Epoch (TT) 17050831.0
time of perihelion passage (TT) 20070313.048500 ± 0.000276
perihelion distance 2.50326356 ± 0.00000304
eccentricity 0.99984724 ± 0.00001158
argument of perihelion[deg] 328.074654 ± 0.000152
longitude of the ascending node [deg] 49.427948 ± 0.000043
inclination[deg] 92.612451 ± 0.000018
inverse semimajor axis [10-6 au-1] 61.02 ± 4.63

Note: Values of uncertainties of original/future orbital elements were derived using a swarm of 5001 osculating orbits of VCs (including the nominal osculating orbit given above) for original/future orbital evolution calclulations and then by fitting the distribution of a given orbital element of original/future swarm of VCs to Gaussian distribution.

Original barycentric positions and velocities of 5001 VCs at 250 au from the Sun are given here   (data format), i.e. before entering the planetary zone.

Future orbital elements (barycentric; at 250 au from the Sun)

Epoch (TT) 23060622.0
time of perihelion passage (TT) 20070313.561543 ± 0.000802
perihelion distance 2.50568081 ± 0.00000438
eccentricity 1.00032895 ± 0.00001170
argument of perihelion[deg] 328.094463 ± 0.000240
longitude of the ascending node [deg] 49.406950 ± 0.000028
inclination[deg] 92.578493 ± 0.000053
inverse semimajor axis [10-6 au-1] -131.28 ± 4.67


Future barycentric positions and velocities of 5001 VCs at 250 au from the Sun are given here   (data format), i.e. after leaving the planetary zone.





Solar System Dynamics & Planetology Group, 2013. All rights reserved

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