Table 3
Original and future orbits of C/2025 D1 (Groeller).
| Quantity | Original | Future | |
|---|---|---|---|
| Pericentric distance (au) | q | 14.108802(53) | 14.108838(68) |
| Eccentricity | e | 0.999607(12) | 1.000022(12) |
| Reciprocal of semi-major axis (10−5 au−1) | a−1 | 2.783(87) | −0.155(88) |
| Inclination (°) | i | 84.505187(27) | 84.496934(75) |
| Argument of periapsis (°) | ω | 186.05861(38) | 186.04463(37) |
| Longitude of ascending node (°) | Ω | 312.910794(20) | 312.908494(34) |
| Time of periapsis (TDB)† | tp | 2028 May 25.831(13) | 2028 May 25.8670(82) |
| Epoch (TDB)† | 1707 Aug. 23.4 ± 4.1 | 2348 Oct. 8.6 ± 4.1 | |
Notes. †The uncertainties are in days. The Keplerian orbital elements of the original and future orbits are both referred to the Solar System barycentric J2000 ecliptic reference frame at the osculating epochs when the comet is at pre- and post-perihelion heliocentric distances rH = 250 au, respectively. The values and their uncertainties (indicated in parentheses) were computed from the means and standard deviations of the 1001 Monte Carlo clones.
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