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
2024-10-23 17:40:54 B 15 29 09.410 -02 52 01.81 V B50
2024-10-23 17:43:52 B 15 29 09.871 -02 52 04.40 V B50
2025-01-26 20:14:02 C 18 00 10.59 -17 49 18.6 D95
2025-01-26 20:16:09 C 18 00 10.61 -17 49 21.8 D95
2025-01-31 08:36:19 C 18 05 15.51 -18 08 39.0 V X07
2025-01-31 08:41:34 C 18 05 15.77 -18 08 39.8 V X07
2025-02-08 20:22:24 C 18 14 10.23 -18 42 59.4 m 349
2025-02-08 20:30:59 C 18 14 10.61 -18 43 01.2 m 349
2025-02-10 08:52:47 C 18 15 40.469 -18 48 50.08 V X07
2025-02-10 08:57:42 C 18 15 40.661 -18 48 50.54 V X07
2025-02-14 02:42:01 C 18 19 15.002 -19 03 07.13 V M22
2025-02-14 02:48:00 C 18 19 15.235 -19 03 07.96 V M22
2025-02-14 02:55:57 C 18 19 15.550 -19 03 09.18 V M22
2025-02-14 03:05:49 C 18 19 15.938 -19 03 11.12 V M22
2025-02-14 15:19:16 C 18 19 44.282 -19 05 08.30 V T05
2025-02-14 15:43:13 C 18 19 45.190 -19 05 12.16 V T05
2025-02-14 15:51:12 C 18 19 45.518 -19 05 13.52 V T05
2025-02-14 16:02:35 C 18 19 45.941 -19 05 15.11 V T05
2025-02-27 02:46:48 C 18 30 12.85 -19 51 13.9 V L09
2025-02-27 02:49:51 C 18 30 13.00 -19 51 13.2 V L09
2025-02-27 02:52:54 C 18 30 13.05 -19 51 14.7 V L09
2025-03-05 03:50:35 C 18 34 28.958 -20 13 28.74 X L79
2025-03-05 03:55:41 C 18 34 29.088 -20 13 30.22 X L79
2025-03-05 04:00:46 C 18 34 29.232 -20 13 30.36 X L79
2025-03-23 18:03:06 C 18 43 53.22 -21 25 16.0 D95
2025-03-23 18:15:27 C 18 43 53.43 -21 25 16.1 D95
2025-03-26 04:27:19 C 18 44 40.147 -21 35 16.73 V Z10
2025-03-26 04:37:49 C 18 44 40.241 -21 35 18.10 V Z10
2025-03-26 04:49:21 C 18 44 40.409 -21 35 21.05 V Z10
2025-03-29 02:10:32 C 18 45 27.502 -21 47 29.54 V M22
2025-03-29 02:24:18 C 18 45 27.631 -21 47 32.14 V M22
2025-03-29 02:28:59 C 18 45 27.682 -21 47 32.82 V M22
2025-03-29 02:54:08 C 18 45 27.919 -21 47 37.68 V M22
2025-03-30 02:30:31 C 18 45 41.710 -21 51 50.58 V M22
2025-03-30 02:34:27 C 18 45 41.738 -21 51 50.94 V M22
2025-03-30 02:39:40 C 18 45 41.810 -21 51 52.09 V M22
2025-03-30 02:55:27 C 18 45 41.933 -21 51 54.90 V M22
2025-04-04 05:32:45 C 18 46 35.18 -22 14 29.1 V Z21
2025-04-04 05:37:47 C 18 46 35.20 -22 14 30.0 V Z21
2025-04-04 05:42:50 C 18 46 35.24 -22 14 31.6 V Z21
2025-04-04 07:50:23 C 18 46 36.110 -22 14 52.55 V W68
2025-04-04 07:55:24 C 18 46 36.118 -22 14 53.20 V W68
2025-04-04 08:30:04 C 18 46 36.276 -22 15 00.43 V W68
2025-04-04 08:38:01 C 18 46 36.322 -22 15 01.62 V W68
2025-04-05 08:15:09 C 18 46 42.910 -22 19 28.85 V W68
2025-04-05 08:19:11 C 18 46 42.919 -22 19 29.89 V W68
2025-04-05 08:27:09 C 18 46 42.962 -22 19 31.80 V W68
2025-04-05 08:39:36 C 18 46 42.970 -22 19 33.96 V W68
2025-04-07 02:59:12 C 18 46 51.91 -22 27 40.9 q 215
2025-04-07 03:02:00 C 18 46 51.91 -22 27 41.4 q 215