Table 4
Heliocentric orbital elements and 1σ uncertainties of comet 51P/Harrington.
| Orbital parameter | Value ± 1σ | ||
|---|---|---|---|
| Eccentricity, e | = | 0.5424370 ± 0.0000006 | |
| Perihelion distance, q (AU) | = | 1.699602 ± 0.000002 | |
| Inclination, i (°) | = | 5.42439 ± 0.00002 | |
| Longitude of the ascending node, Ω (°) | = | 83.7008 ± 0.0011 | |
| Argument of perihelion, ω (°) | = | 269.2756 ± 0.0013 | |
| Time of perihelion passage, τ (TDB) | = | 2 457 247.1857 ± 0.0005 | |
| Nongravitational radial acceleration parameter, A1 (AU d−2) | = | 3.867 × 10−8 ± 6.9 × 10−10 | |
| Nongravitational transverse acceleration parameter, A2 (AU d−2) | = | 3.9969 × 10−9 ± 9.5 × 10−12 | |
| Nongravitational normal acceleration parameter, A3 (AU d−2) | = | −7.129 × 10−9 ± 8.4 × 10−10 | |
Notes. This solution is based on 653 observations that span a data-arc of 5085 d. The orbit determination has been computed by A. B. Chamberlin at epoch JD 2 457 300.5 that corresponds to 00:00:00.000 TDB on 2015 October 5, J2000.0 ecliptic and equinox. Source: JPL’s SSDG SBDB (solution date, 2015-Oct.-07 10:04:30 PST).
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