Spacewatch-PANSTARRS (491P)

⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2020-12-17 (JD 2459200.5)
Eccentricity (e)0.2597378214 ± 4.25e-07
Semi-major axis (a)5.0117110696 AU ± 1.91e-07
Inclination (i)9.37134038° ± 2.62e-05
Long. of Asc. Node (Ω)311.73346578° ± 7.28e-05
Arg. of Perihelion (ω)299.08789885° ± 1.26e-04
Mean Anomaly (M)240.58236577° ± 5.87e-05
Mean Motion (n)0.0878466158°/day ± 5.01e-09
Perihelion dist (q)3.70998016 AU ± 2.13e-06
Aphelion dist (Q)6.31344198 AU ± 2.14e-06
Orbital Period11.21985490 yr ± 6.40e-07
Orbit Solution
SourceJPL
Solution Date2026-05-28 12:12:26
RMS Residual0.544″
Uncertainty0
Orbit TypeJupiter-family Comet
MOID2.708060 AU
Observations Used458
Oppositions—
Arc Total2013-2026
First Observation Used—
Last Observation Used2026-05-23
Observations (533)
Date Type RA Dec Mag Band Observatory
2025-08-27 04:09:00 C 19 41 04.034 -23 19 47.86 – V W68
2025-09-01 19:28:28 C 19 39 41.237 -23 12 04.10 – V M22
2025-09-01 19:35:25 C 19 39 41.136 -23 12 03.31 – V M22
2025-09-01 19:47:02 C 19 39 41.052 -23 12 01.80 – V M22
2025-09-01 20:38:55 C 19 39 40.536 -23 11 58.02 – V M22
2025-09-10 20:14:48 C 19 38 36.245 -22 57 31.61 – V M22
2025-09-10 20:18:46 C 19 38 36.230 -22 57 30.85 – V M22
2025-09-10 20:32:07 C 19 38 36.194 -22 57 29.99 – V M22
2025-09-10 20:55:31 C 19 38 36.154 -22 57 28.73 – V M22
2025-09-15 08:21:03 C 19 38 35.426 -22 49 24.28 – V T05
2025-09-15 08:24:58 C 19 38 35.402 -22 49 24.38 – V T05
2025-09-15 08:33:32 C 19 38 35.311 -22 49 23.09 – V T05
2025-09-15 08:50:40 C 19 38 35.496 -22 49 21.43 – V T05
2025-09-16 08:05:50 C 19 38 38.023 -22 47 32.53 – V T05
2025-09-16 08:12:43 C 19 38 38.071 -22 47 31.49 – V T05
2025-09-16 08:19:59 C 19 38 38.016 -22 47 31.24 – V T05
2025-09-16 08:39:02 C 19 38 38.045 -22 47 30.16 – V T05
2025-09-18 02:25:58 C 19 38 45.209 -22 44 06.61 – V W68
2025-09-18 02:31:28 C 19 38 45.250 -22 44 06.04 – V W68
2025-09-18 03:23:34 C 19 38 45.408 -22 44 01.46 – V W68
2025-09-18 03:35:02 C 19 38 45.451 -22 44 03.08 – V W68
2025-09-22 19:51:56 C 19 39 20.294 -22 34 34.64 – V M22
2025-09-22 19:56:01 C 19 39 20.318 -22 34 33.74 – V M22
2025-09-22 20:03:59 C 19 39 20.371 -22 34 33.53 – V M22
2025-09-22 20:17:37 C 19 39 20.438 -22 34 32.45 – V M22
2025-09-22 20:20:16 C 19 39 20.460 -22 34 32.34 – V M22
2025-09-22 20:27:32 C 19 39 20.460 -22 34 30.83 – V M22
2025-09-25 06:29:58 C 19 39 47.261 -22 29 25.84 – V T08
2025-09-25 06:40:32 C 19 39 47.340 -22 29 23.96 – V T08
2025-09-25 06:45:50 C 19 39 47.448 -22 29 24.61 – V T08
2025-09-25 06:53:47 C 19 39 47.407 -22 29 24.40 – V T08
2025-09-25 06:57:47 C 19 39 47.424 -22 29 23.14 – V T08
2025-09-25 07:01:45 C 19 39 47.539 -22 29 23.42 – V T08
2025-09-25 07:05:42 C 19 39 47.604 -22 29 23.10 – V T08
2025-09-25 07:22:11 C 19 39 47.666 -22 29 20.90 – V T08
2025-09-25 18:39:59 C 19 39 53.618 -22 28 18.48 – V M22
2025-09-25 18:45:29 C 19 39 53.650 -22 28 18.37 – V M22
2025-09-25 18:52:41 C 19 39 53.717 -22 28 17.90 – V M22
2025-09-25 19:08:35 C 19 39 53.774 -22 28 15.31 – V M22
2025-09-26 10:40:04 C 19 40 02.369 -22 26 52.94 – q Q14
2025-09-26 10:43:39 C 19 40 02.393 -22 26 53.41 – q Q14
2025-10-10 01:49:49 C 19 44 32.41 -21 54 35.1 – V X07
2025-10-10 01:54:46 C 19 44 32.52 -21 54 34.4 – V X07
2025-10-12 01:28:40 C 19 45 25.560 -21 49 26.94 – V W68
2025-10-12 01:32:41 C 19 45 25.608 -21 49 26.94 – V W68
2025-10-12 01:39:59 C 19 45 25.754 -21 49 26.26 – V W68
2025-10-12 01:55:29 C 19 45 26.095 -21 49 24.20 – V W68
2025-10-16 18:17:40 C 19 47 44.354 -21 36 51.37 – V M22
2025-10-16 18:22:43 C 19 47 44.474 -21 36 53.28 – V M22
2025-10-16 18:37:13 C 19 47 44.738 -21 36 51.16 – V M22