Howell (88P)

⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2019-03-13 (JD 2458555.5)
Eccentricity (e)0.5640715690 ± 5.67e-08
Semi-major axis (a)3.1060875757 AU ± 8.06e-08
Inclination (i)4.38376567° ± 8.79e-06
Long. of Asc. Node (Ω)56.69487866° ± 8.02e-05
Arg. of Perihelion (ω)235.87629830° ± 8.13e-05
Mean Anomaly (M)258.51442921° ± 7.27e-06
Mean Motion (n)0.1800460215°/day ± 7.01e-09
Perihelion dist (q)1.35403188 AU ± 1.80e-07
Aphelion dist (Q)4.85814327 AU ± 2.17e-07
Orbital Period5.47430193 yr ± 2.13e-07
Orbit Solution
SourceJPL
Solution Date2025-09-09 14:40:12
RMS Residual0.594″
Uncertainty0
Orbit TypeJupiter-family Comet
MOID0.345428 AU
Observations Used3010
Oppositions—
Arc Total2014-2025
First Observation Used—
Last Observation Used2025-06-24
Observations (406)
Date Type RA Dec Mag Band Observatory
2026-07-26 05:12:34 C 02 45 45.240 +12 32 15.04 – V R17
2026-07-27 03:23:30 B 02 46 57.21 +12 37 54.0 – V Y87
2026-07-27 03:31:26 B 02 46 57.64 +12 37 56.1 – V Y87
2026-07-27 03:40:40 B 02 46 58.13 +12 37 58.4 – V Y87
2026-07-27 14:32:24 C 02 47 32.932 +12 40 43.98 – X F51
2026-07-27 14:38:01 C 02 47 33.213 +12 40 45.34 – X F51
2026-07-27 14:43:38 C 02 47 33.515 +12 40 46.79 – X F51
2026-06-28 09:54:56 B 02 01 30.48 +08 45 54.0 – q X07
2026-06-28 09:56:34 B 02 01 30.60 +08 45 54.7 – q X07
2026-06-28 09:59:50 B 02 01 30.90 +08 45 56.2 – q X07
2026-06-28 10:01:31 B 02 01 31.05 +08 45 56.6 – q X07
2026-07-18 01:12:54 B 02 34 21.12 +11 37 05.4 – X L04
2026-07-18 01:20:39 B 02 34 21.57 +11 37 07.5 – X L04
2026-07-26 02:00:13 C 02 45 34.788 +12 31 24.64 – q L79
2026-07-26 02:04:08 C 02 45 35.069 +12 31 24.92 – q L79
2026-07-26 02:08:17 C 02 45 35.203 +12 31 25.72 – q L79
2026-07-29 01:20:30 B 02 49 22.495 +12 49 15.89 – Z K74
2026-07-29 01:26:33 B 02 49 22.800 +12 49 17.15 – Z K74
2026-07-29 01:38:30 B 02 49 23.414 +12 49 20.03 – Z K74
2026-07-29 01:44:33 B 02 49 23.743 +12 49 21.65 – Z K74
2026-07-29 05:06:34 B 02 49 34.154 +12 50 11.54 – X J51
2026-07-29 05:17:07 B 02 49 34.680 +12 50 15.43 – X J51
2026-07-29 05:27:41 B 02 49 35.232 +12 50 17.41 – X J51
2026-07-29 13:35:20 C 02 50 00.386 +12 52 15.28 – V T08
2026-07-29 13:51:08 C 02 50 01.162 +12 52 19.06 – V T08
2026-07-29 13:55:45 C 02 50 01.394 +12 52 19.99 – V T08
2026-07-29 14:11:45 C 02 50 02.201 +12 52 24.10 – V T08
2026-07-31 14:22:41 C 02 52 27.533 +13 03 39.82 – V T08
2026-07-31 14:30:35 C 02 52 27.900 +13 03 41.87 – V T08
2026-07-31 14:49:56 C 02 52 28.836 +13 03 46.30 – V T08
2026-07-31 15:00:29 C 02 52 29.354 +13 03 48.42 – V T08
2026-08-01 04:08:03 C 02 53 08.052 +13 06 45.86 – V R17
2026-08-01 04:28:25 C 02 53 09.036 +13 06 50.80 – V R17
2026-08-01 04:48:48 C 02 53 10.039 +13 06 55.12 – V R17
2026-08-01 05:09:10 C 02 53 10.982 +13 06 59.94 – V R17
2026-08-01 23:48:46 B 02 54 05.083 +13 11 07.51 – X L76
2026-08-01 23:58:56 B 02 54 05.563 +13 11 09.89 – X L76
2026-08-02 00:09:05 B 02 54 06.094 +13 11 12.55 – X L76
2026-08-02 13:39:50 C 02 54 44.664 +13 14 11.94 – V T05
2026-08-02 13:45:04 C 02 54 44.899 +13 14 13.20 – V T05
2026-08-02 14:08:48 C 02 54 46.030 +13 14 18.31 – V T05
2026-08-02 14:20:43 C 02 54 46.565 +13 14 20.98 – V T05
2026-08-06 02:23:15 C 02 58 35.92 +13 31 46.9 – Z L27
2026-08-06 02:31:55 C 02 58 36.28 +13 31 48.4 – Z L27
2026-08-06 02:43:50 C 02 58 36.80 +13 31 50.5 – Z L27
2026-07-21 01:53:52 C 02 38 44.409 +11 58 35.68 – Z M09
2026-07-21 02:01:26 C 02 38 45.175 +11 58 37.53 – Z M09
2026-07-21 02:08:28 C 02 38 45.666 +11 58 40.49 – Z M09
2026-07-24 00:55:59 C 02 42 51.201 +12 18 23.93 – Z M09
2026-07-24 01:03:55 C 02 42 51.665 +12 18 27.05 – Z M09