Solar System
Dynamics &
Planetology
Group 		C/1993 Q1 Mueller


SSDP Cometary Note C1993Q1N1-001

Comet C/1993 Q1 Mueller

number of observations 526
number of residuals 1041
data interval 1993 Aug. 16 — 1994 Apr. 17
rms [arcsec] 0.92
orbit quality class 1b

Osculating orbital elements (heliocentric; ecliptic J2000.0)

Epoch (TT) 19940329.0 = JD 2449440.5
time of perihelion passage (TT) 19940326.275403 ± 0.000376
perihelion distance 0.96732722 ± 0.00000951
eccentricity 1.00022433 ± 0.00001560
argument of perihelion [deg] 261.024015 ± 0.000964
longitude of the ascending node [deg] 193.788651 ± 0.000287
inclination [deg] 105.025195 ± 0.000091
inverse semimajor axis [10-6 au-1] -231.90 ± 16.12

Nongravitational parameters [10-8 au/day2] A1 = 3.829 ± 0.336 A2 = 0.864 ± 0.128 A3 = 0.456 ± 0.186

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) 16960110
time of perihelion passage (TT) 19940326.010524 ± 0.000202
perihelion distance 0.96693428 ± 0.00000866
eccentricity 0.99998817 ± 0.00000595
argument of perihelion [deg] 261.116266 ± 0.000560
longitude of the ascending node [deg] 193.890790 ± 0.000119
inclination [deg] 104.974100 ± 0.000235
inverse semimajor axis [10-6 au-1] 12.24 ± 6.15

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) 22900116
time of perihelion passage (TT) 19940326.878309 ± 0.000485
perihelion distance 0.96276580 ± 0.00001197
eccentricity 1.00019695 ± 0.00002253
argument of perihelion [deg] 260.876642 ± 0.001173
longitude of the ascending node [deg] 193.679026 ± 0.000514
inclination [deg] 104.969606 ± 0.000174
inverse semimajor axis [10-6 au-1] -204.56 ± 23.40


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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