Solar System
Dynamics &
Planetology
Group 		C/1952 W1 Mrkos


SSDP Cometary Note C1952W1N1-001

Comet C/1952 W1 Mrkos

number of observations 36
number of residuals 61
data interval 1952 Dec. 10 — 1953 July 18
rms [arcsec] 1.08
orbit quality class 2a

Osculating orbital elements (heliocentric; ecliptic J2000.0)

Epoch (TT) 19530123.0 = JD 2434400.5
time of perihelion passage (TT) 19530124.861090 ± 0.000716
perihelion distance 0.77770934 ± 0.00001008
eccentricity 1.00005338 ± 0.00014581
argument of perihelion [deg] 253.822072 ± 0.000446
longitude of the ascending node [deg] 343.580012 ± 0.000890
inclination [deg] 97.186308 ± 0.000812
inverse semimajor axis [10-6 au-1] -68.64 ± 187.49

Nongravitational parameters [10-8 au/day2] A1 = 3.84 ± 1.90 A2 = -0.489 ± 0.181 A3 = 0.0 (assumed)

Note: Epoch is given in a format: yyyymmdd.d, time of perihelion passage in a format of yyyymmdd.dddddd. Smaller number of observations taken for orbit determination than in MWC08 (time interval is the same).

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

Epoch (TT) 16550415
time of perihelion passage (TT) 19530124.009962 ± 0.001204
perihelion distance 0.77523403 ± 0.00003670
eccentricity 1.00000006 ± 0.00006651
argument of perihelion [deg] 253.927686 ± 0.003436
longitude of the ascending node [deg] 343.653652 ± 0.000900
inclination [deg] 97.162914 ± 0.000824
inverse semimajor axis [10-6 au-1] -0.07 ± 85.79

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) 22500526
time of perihelion passage (TT) 19530125.074189 ± 0.002219
perihelion distance 0.77661881 ± 0.00004215
eccentricity 1.00003215 ± 0.00008305
argument of perihelion [deg] 253.740607 ± 0.004184
longitude of the ascending node [deg] 343.512621 ± 0.000894
inclination [deg] 97.122336 ± 0.000825
inverse semimajor axis [10-6 au-1] -41.39 ± 106.94


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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