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
2023-12-23 21:07:35 C 03 10 38.779 -17 13 28.70 Z 213
2023-12-23 21:42:27 C 03 10 37.282 -17 13 09.66 Z 213
2023-12-24 03:48:19 C 03 10 21.960 -17 09 45.76 V W68
2023-12-24 03:52:24 C 03 10 21.792 -17 09 43.56 V W68
2023-12-24 04:00:22 C 03 10 21.478 -17 09 38.74 V W68
2023-12-24 04:20:04 C 03 10 20.621 -17 09 28.04 V W68
2023-12-24 23:17:47 B 03 09 34.00 -16 59 04.7 Z Y99
2023-12-24 23:32:07 B 03 09 33.30 -16 58 54.8 Z Y99
2023-12-25 19:26:36 C 03 08 45.281 -16 47 41.68 Z 213
2023-12-25 19:59:04 C 03 08 43.973 -16 47 23.21 Z 213
2023-12-25 20:31:35 C 03 08 42.650 -16 47 04.38 Z 213
2023-12-26 18:35:02 C 03 07 50.53 -16 34 25.2 q A77
2023-12-26 18:50:48 C 03 07 49.83 -16 34 14.9 q A77
2023-12-26 19:05:57 C 03 07 49.20 -16 34 06.8 q A77
2023-12-27 02:45:36 C 03 07 31.246 -16 29 34.19 V W68
2023-12-27 02:50:10 C 03 07 31.082 -16 29 31.52 V W68
2023-12-27 03:17:49 C 03 07 30.005 -16 29 15.58 V W68
2023-12-27 03:25:43 C 03 07 29.674 -16 29 10.39 V W68
2023-12-27 19:11:09 C 03 06 53.61 -16 19 59.7 q A77
2023-12-27 19:14:40 C 03 06 53.44 -16 19 57.7 q L27
2023-12-27 19:21:29 C 03 06 53.22 -16 19 53.4 q A77
2023-12-27 19:31:29 C 03 06 52.79 -16 19 47.6 q A77
2023-12-27 19:47:24 C 03 06 52.20 -16 19 37.7 q L27
2023-12-28 08:11:18 C 03 06 24.036 -16 12 14.51 V T08
2023-12-28 08:19:57 C 03 06 23.726 -16 12 09.25 V T08
2023-12-28 08:24:59 C 03 06 23.501 -16 12 06.41 V T08
2023-12-28 08:48:41 C 03 06 22.613 -16 11 51.58 V T08
2023-12-30 00:19:39 B 03 04 55.84 -15 47 53.0 Z J22
2023-12-30 00:25:31 B 03 04 55.57 -15 47 49.5 Z J22
2023-12-30 00:31:26 B 03 04 55.31 -15 47 45.1 Z J22
2023-12-30 21:11:13 C 03 04 11.779 -15 34 55.78 Z 213
2023-12-30 22:19:39 C 03 04 09.343 -15 34 12.50 Z 213
2023-12-30 23:26:24 C 03 04 07.006 -15 33 30.28 Z 213
2023-12-31 03:15:46 C 03 03 59.050 -15 31 03.04 V W68
2023-12-31 03:20:36 C 03 03 58.879 -15 31 00.12 V W68
2023-12-31 03:32:26 C 03 03 58.63 -15 30 57.2 V U94
2023-12-31 03:32:49 C 03 03 58.447 -15 30 52.52 V W68
2023-12-31 03:39:08 C 03 03 58.39 -15 30 52.9 V U94
2023-12-31 03:41:22 C 03 03 58.30 -15 30 51.4 V U94
2023-12-31 03:43:36 C 03 03 58.23 -15 30 50.2 V U94
2023-12-31 04:09:59 C 03 03 57.120 -15 30 28.91 V W68
2024-01-01 03:33:28 C 03 03 09.466 -15 15 39.53 V W68
2024-01-01 03:38:54 C 03 03 09.276 -15 15 36.04 V W68
2024-01-01 03:47:49 C 03 03 08.981 -15 15 30.35 V W68
2024-01-01 04:08:45 C 03 03 08.230 -15 15 17.10 V W68
2024-01-01 09:28:33 C 03 02 57.75 -15 11 52.5 V E85
2024-01-01 09:44:02 C 03 02 57.21 -15 11 42.2 V E85
2024-01-01 09:54:22 C 03 02 56.87 -15 11 35.3 V E85
2024-01-01 11:31:43 C 03 02 53.65 -15 10 37.5 m 349
2024-01-01 11:49:45 C 03 02 53.04 -15 10 25.7 m 349