Solar System
Dynamics &
Planetology
Group 		C/2010 H1 Garradd


SSDP Cometary Note C2010H1A5-001

Comet C/2010 H1 Garradd

number of observations 51
number of residuals 95
data interval 2010 Feb. 19 — 2010 July 2
rms [arcsec] 0.79
orbit quality class 2b

Osculating orbital elements (heliocentric; ecliptic J2000.0)

Epoch (TT) 20100524.0 = JD 2455340.5
time of perihelion passage (TT) 20100618.881912 ± 0.011591
perihelion distance 2.74566505 ± 0.00007134
eccentricity 0.99969990 ± 0.00002811
argument of perihelion [deg] 233.813390 ± 0.004331
longitude of the ascending node [deg] 347.384822 ± 0.000494
inclination [deg] 36.532756 ± 0.000714
inverse semimajor axis [10-6 au-1] 109.30 ± 10.24

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) 17090323
time of perihelion passage (TT) 20100619.145776 ± 0.012050
perihelion distance 2.74743452 ± 0.00007428
eccentricity 1.00000959 ± 0.00002954
argument of perihelion [deg] 233.787592 ± 0.004486
longitude of the ascending node [deg] 347.407257 ± 0.000507
inclination [deg] 36.505749 ± 0.000741
inverse semimajor axis [10-6 au-1] -3.49 ± 10.75

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) 23180219
time of perihelion passage (TT) 20100619.758327 ± 0.011996
perihelion distance 2.74102522 ± 0.00007350
eccentricity 0.99851734 ± 0.00002949
argument of perihelion [deg] 233.759236 ± 0.004490
longitude of the ascending node [deg] 347.340145 ± 0.000510
inclination [deg] 36.506372 ± 0.000733
inverse semimajor axis [10-6 au-1] 540.91 ± 10.77


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

\