Nongravitational nominal solution
Observational arc: 1989 12 06 - 1990 06 27 Number of observations: 281 RMS: 1.28 arcsec (537 residuals used, 4.4% rejected residuals )
Heliocentric osculating orbit
Epoch Perihelion time q e ω Ω i 1990 04 19 19900409.967504 0.349772053 1.00021591 61.575931 75.925341 58.956430 ± 0.000033 0.000000525 0.00000309 0.000097 0.000017 0.000065 NG parameters: A1 = (0.26749 ± 0.07290)×10-8 AU/day2 A2 = (0.03266 ± 0.02210)×10-8 AU/day2 A3 = 0 (assumed)
Barycentric nominal original orbit (at 250 AU from the Sun)
Epoch Perihelion time q e ω Ω i 1692 11 06 19900409.258092 0.34831385 0.99998577 61.664471 76.603855 58.984571 ± 0.000128 0.00000156 0.00000344 0.000303 0.000017 0.000065 1/aori = ( +40.84 ± 9.89)×10-6 AU-1
Barycentric nominal future orbit (at 250 AU from the Sun)
Epoch Perihelion time q e ω Ω i 2283 04 03 19900410.752338 0.34950188 1.00012895 61.613551 76.567680 58.881734 ± 0.000035 0.00000087 0.00000190 0.000126 0.000016 0.000065 1/afut = (-368.96 ± 5.42)×10-6 AU-1
In the 17th edition of the Catalogue of Cometary orbits (2008):
Gravitational orbit (144 obs.) with 0 < 1/aori < 10-4 AU-1.
The same comet in some other internet sources:
More details
Starting swarms of VCs...(heliocentric, osculating orbits)
Original and future orbit at the 250 AU from the Sun.
Comet number 12 in the Table: Nongravitational Oort spike comets (26 objects)
Name | GR (1/a)ori [10-8 AU/day2] | GR (1/a)osc [10-8 AU/day2] epoch [TT] | GR 1/afut [10-8 AU/day2] | RMSGR [arcsec] | NG (1/a)ori [10-8 AU/day2] | NG (1/a)osc [10-8 AU/day2] epoch [TT] | NG 1/afut [10-8 AU/day2] | RMSNG [arcsec] | NG parameters A1 A2 A3 [10-8 AU/day2] tau shift [day] | |
12 | C/1989 X1 Austin weighting | +22.39 ± 2.07 | -652.36 ± 2.07 1990 04 19 | -365.62 ± 2.07 | 1.31 | +40.84 ± 9.89 | -617.28 ± 8.82 1990 04 19 | -368.96 ± 5.42 | 1.28 | 2.6749 ± 0.0729 0.03266 ± 0.02210 |
Note: in the following plots black denotes returning clones while red denotes escaping ones.The nominal solution is located at the center of the green circle. Each plot have a header where date of calculation and some other parameters are coded. Also numbers of returning (B=shown+omitted), escaping (C=shown+omitted) and all (T=shown+omitted) Vcs are shown.
Past orbits, at previous perihelion for the returning VCs :
Future orbits, at escape border (no returning VCs) :