311P

⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2017-07-27 (JD 2457961.5)
Eccentricity (e)0.1156465709 ± 1.32e-07
Semi-major axis (a)2.1886928320 AU ± 2.71e-08
Inclination (i)4.96658171° ± 1.26e-05
Long. of Asc. Node (Ω)279.25802401° ± 2.09e-04
Arg. of Perihelion (ω)143.98682684° ± 2.48e-04
Mean Anomaly (M)4.97792663° ± 1.19e-04
Mean Motion (n)0.3043875258°/day ± 5.65e-09
Perihelion dist (q)1.93557801 AU ± 2.89e-07
Aphelion dist (Q)2.44180765 AU ± 2.90e-07
Orbital Period3.23806398 yr ± 6.01e-08
Orbit Solution
SourceJPL
Solution Date2026-07-28 14:12:27
RMS Residual0.363″
Uncertainty0
Orbit TypeEncke-type Comet
MOID0.950420 AU
Observations Used278
Oppositions
Arc Total2005-2026
First Observation Used
Last Observation Used2026-07-22
Observations (277)
Date Type RA Dec Mag Band Observatory
2023-11-03 11:27:13 C 02 22 14.702 +23 15 02.74 X F52
2023-11-03 11:45:54 C 02 22 13.848 +23 14 57.13 X F52
2023-11-03 12:04:48 C 02 22 12.996 +23 14 51.40 X F52
2023-11-08 11:47:47 C 02 17 11.254 +22 37 53.99 X F51
2023-11-08 12:05:30 C 02 17 10.493 +22 37 48.11 X F51
2023-11-08 12:23:20 C 02 17 09.721 +22 37 42.18 X F51
2023-11-08 12:41:04 C 02 17 08.955 +22 37 36.28 X F51
2023-11-11 07:40:18 C 02 14 28.475 +22 15 39.88 X F52
2023-11-11 08:15:37 C 02 14 27.012 +22 15 28.17 X F52
2023-11-11 08:33:35 C 02 14 26.250 +22 15 22.23 X F52
2023-12-09 05:21:37 C 01 59 46.818 +18 50 33.66 X F51
2023-12-09 05:41:00 C 01 59 46.764 +18 50 29.48 X F51
2023-12-09 06:00:28 C 01 59 46.696 +18 50 25.10 X F51
2023-12-09 06:22:45 C 01 59 46.637 +18 50 20.02 X F51
2024-01-02 01:47:18 C 02 09 42.69 +17 40 48.5 V X03
2024-01-02 01:55:18 C 02 09 43.00 +17 40 48.6 V X03
2024-01-02 02:04:56 C 02 09 43.30 +17 40 48.5 V X03
2025-05-02 10:16:08 C 14 00 01.129 -20 11 19.37 X F52
2025-05-02 10:32:35 C 14 00 00.411 -20 11 14.73 X F52
2025-05-02 10:49:01 C 13 59 59.703 -20 11 10.22 X F52
2025-05-02 11:05:29 C 13 59 58.971 -20 11 05.35 X F52
2026-07-20 18:53:12 C 23 41 35.753 +04 30 19.68 W O18
2026-07-20 20:38:10 C 23 41 36.847 +04 30 46.01 W O18
2026-07-21 19:27:47 C 23 41 52.201 +04 36 26.28 W O18
2026-07-21 20:19:54 C 23 41 52.676 +04 36 39.02 W O18
2026-07-22 18:34:10 C 23 42 06.193 +04 42 02.68 W O18
2026-07-22 20:19:21 C 23 42 07.067 +04 42 27.72 W O18