Solar System
Dynamics &
Planetology
Group 		C/2004 B1 LINEAR


SSDP Cometary Note C2004B1N5-001

Comet C/2004 B1 LINEAR

number of observations 2057
number of residuals 3758
data interval 2004 Jan. 28 — 2008 Aug. 24
rms [arcsec] 0.43
orbit quality class 1a+

Osculating orbital elements (heliocentric; ecliptic J2000.0)

Epoch (TT) 20060125.0 = JD 2453760.5
time of perihelion passage (TT) 20060207.887081 ± 0.000034
perihelion distance 1.60192826 ± 0.00000040
eccentricity 1.00127077 ± 0.00000112
argument of perihelion [deg] 327.899930 ± 0.000009
longitude of the ascending node [deg] 272.801920 ± 0.000008
inclination [deg] 114.096796 ± 0.000010
inverse semimajor axis [10-6 au-1] -793.27 ± 0.70

Nongravitational parameters [10-8 au/day2] A1 = 0.9131 ± 0.0334 A2 = -0.3503 ± 0.0177 A3 = -0.23725 ± 0.00683

Notes: 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) 17060717
time of perihelion passage (TT) 20060208.897763 ± 0.000074
perihelion distance 1.60641136 ± 0.00000067
eccentricity 0.99994236 ± 0.00000110
argument of perihelion [deg] 327.914718 ± 0.000042
longitude of the ascending node [deg] 272.794963 ± 0.000008
inclination [deg] 114.147484 ± 0.000011
inverse semimajor axis [10-6 au-1] 35.88 ± 0.68

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) 23000325
time of perihelion passage (TT) 20060208.517477 ± 0.000072
perihelion distance 1.59866036 ± 0.00000069
eccentricity 1.00073763 ± 0.00000104
argument of perihelion [deg] 327.900232 ± 0.000046
longitude of the ascending node [deg] 272.924965 ± 0.000008
inclination [deg] 114.086937 ± 0.000008
inverse semimajor axis [10-6 au-1] -461.40 ± 0.65


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.





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