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
2024-07-31 20:50:00 C 11 16 45.974 +34 53 02.04 X L79
2024-07-31 21:07:45 B 11 16 49.41 +34 52 43.3 V Y87
2024-07-31 21:13:55 B 11 16 50.63 +34 52 36.4 V Y87
2024-07-31 21:19:54 B 11 16 51.81 +34 52 29.7 V Y87
2024-07-31 21:23:44 C 11 16 52.466 +34 52 25.10 V Z10
2024-07-31 21:34:07 C 11 16 54.586 +34 52 13.62 V Z10
2024-07-31 21:45:43 C 11 16 56.820 +34 52 00.70 V Z10
2024-08-01 19:08:35 C 11 21 08.119 +34 27 58.72 V L54
2024-08-01 19:29:16 C 11 21 12.173 +34 27 34.99 V L54
2024-08-01 19:48:54 C 11 21 15.996 +34 27 12.67 V L54
2024-08-01 20:28:14 C 11 21 23.69 +34 26 28.6 q A77
2024-08-01 20:30:39 C 11 21 24.14 +34 26 25.5 q A77
2024-08-01 20:33:04 C 11 21 24.62 +34 26 23.2 q A77
2024-08-01 20:35:28 C 11 21 25.06 +34 26 19.7 q A77
2024-08-01 20:37:53 C 11 21 25.54 +34 26 17.7 q A77
2024-08-01 20:40:49 C 11 21 26.14 +34 26 14.3 q A77
2024-08-01 20:41:47 C 11 21 26.30 +34 26 12.6 q A77
2024-08-01 21:18:19 C 11 21 33.415 +34 25 31.62 V Z10
2024-08-01 21:28:42 C 11 21 35.419 +34 25 19.52 V Z10
2024-08-01 21:40:13 C 11 21 37.555 +34 25 05.48 V Z10
2024-08-02 11:17:09 C 11 24 16.03 +34 09 34.0 V P87
2024-08-02 11:27:46 C 11 24 18.12 +34 09 21.4 V P87
2024-08-02 11:39:41 C 11 24 20.44 +34 09 07.6 V P87
2024-08-02 11:41:36 C 11 24 20.74 +34 09 05.8 q 903
2024-08-02 11:45:14 C 11 24 21.45 +34 09 01.2 q 903
2024-08-02 11:50:00 C 11 24 22.29 +34 08 55.8 q 903
2024-08-02 20:35:26 B 11 26 03.70 +33 58 48.9 X M18
2024-08-02 20:51:13 B 11 26 06.74 +33 58 30.4 X M18
2024-08-02 21:07:09 B 11 26 09.81 +33 58 12.1 X M18
2024-08-02 21:11:20 B 11 26 10.78 +33 58 06.7 V Y87
2024-08-02 21:18:45 B 11 26 12.19 +33 57 58.0 V Y87
2024-08-02 21:25:49 B 11 26 13.58 +33 57 50.1 V Y87
2024-08-03 10:38:10 C 11 28 45.24 +33 42 30.5 m 349
2024-08-03 10:40:35 C 11 28 45.69 +33 42 27.7 m 349
2024-08-03 10:42:59 C 11 28 46.16 +33 42 25.0 m 349
2024-08-03 18:16:26 B 11 30 12.60 +33 33 32.0 V M75
2024-08-03 18:37:14 B 11 30 16.57 +33 33 07.6 V M75
2024-08-03 18:58:02 B 11 30 20.53 +33 32 43.1 V M75
2024-08-03 20:27:48 C 11 30 37.586 +33 30 57.02 X L79
2024-08-03 20:32:09 C 11 30 38.438 +33 30 52.16 X L79
2024-08-03 20:36:43 C 11 30 39.293 +33 30 46.66 X L79
2024-08-03 22:22:03 C 11 30 59.436 +33 28 42.10 V I81
2024-08-03 22:23:39 C 11 30 59.743 +33 28 40.30 V I81
2024-08-03 22:25:14 C 11 31 00.000 +33 28 38.71 V I81
2024-08-03 22:26:50 C 11 31 00.350 +33 28 36.37 V I81
2024-08-04 22:00:14 C 11 35 27.043 +33 00 37.98 V 970
2024-08-04 22:07:59 C 11 35 28.493 +33 00 28.19 V 970
2024-08-05 20:02:45 C 11 39 33.701 +32 34 04.30 X L79
2024-08-05 20:06:38 C 11 39 34.418 +32 33 59.54 X L79
2024-08-05 20:10:33 C 11 39 35.167 +32 33 55.19 X L79