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
2024-01-27 18:40:07 B 02 51 45.338 -07 20 06.14 V 160
2024-01-27 18:55:09 B 02 51 45.43 -07 19 53.5 X M18
2024-01-27 19:06:04 C 02 51 45.39 -07 19 44.4 A77
2024-01-27 19:14:04 C 02 51 45.36 -07 19 37.8 A77
2024-01-27 19:17:04 B 02 51 45.33 -07 19 36.0 X M18
2024-01-27 19:22:03 C 02 51 45.35 -07 19 31.3 A77
2024-01-28 13:50:03 C 02 51 43.68 -07 04 15.2 V 323
2024-01-28 13:54:08 C 02 51 43.70 -07 04 12.2 V 323
2024-01-28 13:58:19 C 02 51 43.68 -07 04 08.8 V 323
2024-01-28 17:26:02 B 02 51 43.680 -07 01 22.19 V L65
2024-01-28 17:30:12 B 02 51 43.663 -07 01 18.84 V L65
2024-01-28 17:34:20 B 02 51 43.649 -07 01 15.24 V L65
2024-01-28 18:55:18 C 02 51 43.534 -07 00 08.68 Z C23
2024-01-28 19:00:31 C 02 51 43.546 -07 00 03.06 Z C23
2024-01-28 19:04:40 C 02 51 43.555 -06 59 58.74 Z C23
2024-01-29 11:05:22 C 02 51 43.19 -06 46 47.3 V P87
2024-01-29 11:13:14 C 02 51 43.20 -06 46 40.4 V P87
2024-01-29 11:22:33 C 02 51 43.18 -06 46 32.9 V P87
2024-01-29 14:01:01 C 02 51 43.10 -06 44 17.7 V 323
2024-01-29 14:05:04 C 02 51 43.31 -06 44 14.7 V 323
2024-01-29 14:09:09 C 02 51 43.17 -06 44 10.2 V 323
2024-01-29 17:14:38 B 02 51 43.358 -06 41 42.07 V 160
2024-01-29 17:25:34 B 02 51 43.332 -06 41 32.82 V 160
2024-01-29 17:35:40 C 02 51 43.33 -06 41 24.6 X G02
2024-01-29 17:36:04 B 02 51 43.327 -06 41 24.43 V 160
2024-01-29 17:41:15 C 02 51 43.33 -06 41 20.0 X G02
2024-01-29 17:46:33 C 02 51 43.32 -06 41 15.6 X G02
2024-01-29 17:57:40 B 02 51 43.366 -06 41 06.54 X K74
2024-01-29 18:00:43 B 02 51 43.368 -06 41 03.77 X K74
2024-01-29 18:03:43 B 02 51 43.361 -06 41 01.25 X K74
2024-01-29 18:07:47 B 02 51 43.354 -06 40 58.19 X K74
2024-01-29 19:12:20 C 02 51 43.28 -06 39 59.7 V L09
2024-01-29 19:15:24 C 02 51 43.28 -06 39 56.9 V L09
2024-01-29 19:18:27 C 02 51 43.28 -06 39 54.0 V L09
2024-01-30 00:44:02 C 02 51 43.577 -06 35 28.90 q H47
2024-01-30 00:48:27 C 02 51 43.584 -06 35 25.76 q H47
2024-01-30 00:51:59 C 02 51 43.536 -06 35 22.74 q H47
2024-01-30 00:55:48 C 02 51 43.541 -06 35 18.49 q H47
2024-01-30 00:59:17 C 02 51 43.526 -06 35 16.98 q H47
2024-01-30 02:16:14 C 02 51 43.498 -06 34 08.72 V W68
2024-01-30 02:22:08 C 02 51 43.490 -06 34 03.61 V W68
2024-01-30 02:30:40 C 02 51 43.505 -06 33 56.45 V W68
2024-01-30 02:46:26 C 02 51 43.66 -06 33 47.7 V U94
2024-01-30 02:48:40 C 02 51 43.66 -06 33 45.9 V U94
2024-01-30 02:50:54 C 02 51 43.66 -06 33 44.0 V U94
2024-01-30 02:53:09 C 02 51 43.65 -06 33 42.2 V U94
2024-01-30 03:05:37 C 02 51 43.505 -06 33 27.61 V W68
2024-01-30 11:19:16 C 02 51 44.11 -06 26 42.0 q D95
2024-01-30 11:30:04 C 02 51 44.11 -06 26 33.0 q D95
2024-01-30 11:40:53 C 02 51 44.13 -06 26 24.0 q D95