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
2026-08-12 20:15:19 B 03 05 03.386 +14 01 01.96 – Z P14
2026-08-12 20:34:49 B 03 05 04.147 +14 01 03.32 – Z P14
2026-08-13 05:06:41 C 03 05 22.771 +14 02 21.41 – V R17
2026-08-13 05:11:46 C 03 05 22.966 +14 02 22.16 – V R17
2026-08-13 05:16:52 C 03 05 23.122 +14 02 22.99 – V R17
2026-08-13 05:21:57 C 03 05 23.290 +14 02 23.86 – V R17