13P

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2020-12-10 (JD 2459193.5)
Eccentricity (e)0.9297090702 ± 3.19e-08
Semi-major axis (a)16.6888593039 AU ± 1.52e-07
Inclination (i)44.62417343° ± 1.37e-05
Long. of Asc. Node (Ω)85.87217989° ± 1.51e-05
Arg. of Perihelion (ω)64.51127082° ± 3.03e-05
Mean Anomaly (M)341.22493651° ± 4.64e-07
Mean Motion (n)0.0144565311°/day ± 1.97e-10
Perihelion dist (q)1.17307544 AU ± 5.33e-07
Aphelion dist (Q)32.20464317 AU ± 6.08e-07
Orbital Period68.17861620 yr ± 9.30e-07
Orbit Solution
SourceJPL
Solution Date2026-07-28 14:18:43
RMS Residual0.568″
Uncertainty0
Orbit TypeHalley-type Comet*
MOID0.470257 AU
Observations Used2605
Oppositions
Arc Total1887-2025
First Observation Used
Last Observation Used2025-07-31
Observations (2783)
Date Type RA Dec Mag Band Observatory
2023-12-02 08:11:46 C 03 35 57.838 -20 37 43.36 V W68
2023-12-02 13:00:05 C 03 35 42.88 -20 36 35.2 V 323
2023-12-02 13:10:55 C 03 35 42.29 -20 36 33.0 V 323
2023-12-02 13:21:24 C 03 35 41.75 -20 36 31.4 V 323
2023-12-02 17:10:53 C 03 35 29.32 -20 35 35.6 V 323
2023-12-02 22:32:47 C 03 35 12.398 -20 34 21.58 V B74
2023-12-02 22:43:07 C 03 35 11.834 -20 34 18.98 V B74
2023-12-02 22:55:00 C 03 35 11.177 -20 34 15.78 V B74
2023-12-03 02:39:21 C 03 34 59.37 -20 33 17.3 V X07
2023-12-03 02:43:15 C 03 34 59.15 -20 33 16.2 V X07
2023-12-03 13:02:27 C 03 34 26.37 -20 30 41.4 V 323
2023-12-03 13:12:11 C 03 34 25.74 -20 30 43.0 m 349
2023-12-03 13:14:08 C 03 34 25.69 -20 30 37.8 V 323
2023-12-03 13:27:13 C 03 34 25.03 -20 30 34.7 V 323
2023-12-03 13:38:21 C 03 34 24.30 -20 30 36.7 m 349
2023-12-03 13:38:58 C 03 34 24.39 -20 30 31.9 V 323
2023-12-03 13:50:46 C 03 34 23.74 -20 30 28.8 V 323
2023-12-03 14:04:37 C 03 34 22.99 -20 30 26.3 V 323
2023-12-03 15:36:44 C 03 34 17.92 -20 30 01.4 X Q62
2023-12-03 15:55:53 C 03 34 16.88 -20 29 56.8 X Q62
2023-12-03 16:13:49 C 03 34 15.91 -20 29 51.8 X Q62
2023-12-03 16:30:36 C 03 34 14.98 -20 29 47.6 X Q62
2023-12-03 20:17:29 C 03 34 03.30 -20 28 53.9 A77
2023-12-03 20:29:10 C 03 34 02.65 -20 28 51.0 A77
2023-12-03 20:40:50 C 03 34 02.00 -20 28 48.0 A77
2023-12-04 12:23:12 C 03 33 12.043 -20 24 39.46 q Q21
2023-12-04 12:24:12 C 03 33 12.10 -20 24 39.2 u 367
2023-12-04 12:30:02 C 03 33 11.78 -20 24 37.7 u 367
2023-12-04 12:35:52 C 03 33 11.48 -20 24 35.9 u 367
2023-12-04 12:38:19 C 03 33 11.340 -20 24 33.84 q Q21
2023-12-04 12:41:42 C 03 33 11.16 -20 24 34.3 u 367
2023-12-04 12:45:52 C 03 33 10.918 -20 24 33.19 q Q21
2023-12-05 02:25:27 C 03 32 27.696 -20 20 46.14 V W88
2023-12-05 02:40:36 C 03 32 26.873 -20 20 41.93 V W88
2023-12-05 11:24:23 C 03 31 59.26 -20 18 15.2 V Q58
2023-12-05 11:29:26 C 03 31 59.00 -20 18 13.8 V Q58
2023-12-05 11:34:33 C 03 31 58.75 -20 18 12.4 V Q58
2023-12-05 12:59:51 C 03 31 54.37 -20 17 47.7 V 323
2023-12-05 13:48:56 C 03 31 51.68 -20 17 32.1 V 323
2023-12-05 14:02:11 C 03 31 50.90 -20 17 29.4 V 323
2023-12-05 21:45:11 C 03 31 26.467 -20 15 17.57 V M22
2023-12-05 21:50:25 C 03 31 26.234 -20 15 15.91 V M22
2023-12-05 22:00:56 C 03 31 25.668 -20 15 12.60 V M22
2023-12-05 22:15:49 C 03 31 24.818 -20 15 08.35 V M22
2023-12-06 12:54:34 C 03 30 38.83 -20 10 49.5 V 323
2023-12-06 13:04:58 C 03 30 38.29 -20 10 46.4 V 323
2023-12-06 20:52:00 C 03 30 13.84 -20 08 31.4 q L27
2023-12-06 21:14:10 C 03 30 12.63 -20 08 23.0 q L27
2023-12-06 21:36:19 C 03 30 11.48 -20 08 16.4 q L27
2023-12-06 21:48:03 C 03 30 10.766 -20 08 08.63 V M22