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
2023-12-17 20:08:23 B 03 17 04.553 -18 26 47.44 V L81
2023-12-17 20:12:58 B 03 17 04.301 -18 26 45.02 V L81
2023-12-17 20:32:02 C 03 17 03.51 -18 26 40.0 V C23
2023-12-17 20:36:21 C 03 17 03.168 -18 26 33.86 V M22
2023-12-17 20:40:20 C 03 17 03.05 -18 26 36.5 V C23
2023-12-17 20:41:38 C 03 17 02.926 -18 26 31.27 V M22
2023-12-17 20:46:34 C 03 17 02.70 -18 26 33.0 V C23
2023-12-17 20:49:09 C 03 17 02.573 -18 26 27.92 V M22
2023-12-17 21:10:00 C 03 17 01.560 -18 26 18.24 V M22
2023-12-18 11:19:14 C 03 16 22.17 -18 19 42.3 q D95
2023-12-18 11:27:25 C 03 16 21.78 -18 19 38.2 q D95
2023-12-18 11:35:36 C 03 16 21.42 -18 19 34.7 q D95
2023-12-18 18:32:54 C 03 16 02.294 -18 16 16.79 Z 213
2023-12-18 18:39:33 C 03 16 02.138 -18 16 11.42 Z 213
2023-12-18 18:46:09 C 03 16 01.608 -18 16 10.02 Z 213
2023-12-18 19:22:42 C 03 15 59.89 -18 15 52.8 q 215
2023-12-18 19:24:34 C 03 15 59.80 -18 15 51.7 q 215
2023-12-18 19:26:26 C 03 15 59.71 -18 15 51.0 q 215
2023-12-18 20:00:28 B 03 15 58.17 -18 15 35.4 X G00
2023-12-18 20:15:42 B 03 15 57.37 -18 15 28.3 X G00
2023-12-18 20:30:15 B 03 15 56.68 -18 15 19.8 X G00
2023-12-19 02:30:17 C 03 15 40.183 -18 12 22.57 V W68
2023-12-19 03:08:06 C 03 15 38.412 -18 12 04.54 V W68
2023-12-19 03:22:26 C 03 15 37.745 -18 11 57.73 V W68
2023-12-20 03:41:51 C 03 14 31.514 -18 00 01.76 V W68
2023-12-20 03:45:52 C 03 14 31.337 -17 59 59.93 V W68
2023-12-20 03:53:14 C 03 14 30.974 -17 59 56.22 V W68
2023-12-20 04:30:57 C 03 14 29.258 -17 59 37.46 V W68
2023-12-20 21:27:10 C 03 13 43.937 -17 51 06.95 V M22
2023-12-20 21:35:33 C 03 13 43.574 -17 51 02.77 V M22
2023-12-20 21:45:30 C 03 13 43.102 -17 50 57.41 V M22
2023-12-20 22:23:54 C 03 13 41.364 -17 50 38.08 V M22
2023-12-21 11:22:41 C 03 13 07.27 -17 44 04.5 V P87
2023-12-21 11:30:29 C 03 13 06.90 -17 44 00.2 V P87
2023-12-21 11:42:09 C 03 13 06.36 -17 43 54.7 V P87
2023-12-21 20:54:36 C 03 12 42.218 -17 39 11.74 Z 213
2023-12-21 20:55:28 C 03 12 42.072 -17 39 04.39 V M22
2023-12-21 21:00:45 C 03 12 41.837 -17 39 00.94 V M22
2023-12-21 21:01:08 C 03 12 41.856 -17 39 06.52 Z 213
2023-12-21 21:07:41 C 03 12 41.590 -17 39 02.70 Z 213
2023-12-21 21:13:02 C 03 12 41.299 -17 38 55.28 V M22
2023-12-21 21:28:30 C 03 12 40.610 -17 38 46.97 V M22
2023-12-22 20:19:00 C 03 11 41.681 -17 26 50.93 Z 213
2023-12-22 20:59:40 C 03 11 39.950 -17 26 29.26 Z 213
2023-12-22 21:38:50 C 03 11 38.244 -17 26 08.38 Z 213
2023-12-23 03:20:37 C 03 11 23.575 -17 23 01.07 V W68
2023-12-23 03:36:17 C 03 11 22.913 -17 22 52.61 V W68
2023-12-23 03:41:44 C 03 11 22.697 -17 22 49.69 V W68
2023-12-23 04:04:04 C 03 11 21.737 -17 22 37.74 V W68
2023-12-23 20:29:54 C 03 10 40.387 -17 13 49.33 Z 213