Schwassmann-Wachmann 1 (29P)

⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2022-10-14 (JD 2459866.5)
Eccentricity (e)0.0447981445 ± 1.85e-08
Semi-major axis (a)6.0459765546 AU ± 9.49e-08
Inclination (i)9.36477141° ± 9.63e-07
Long. of Asc. Node (Ω)312.39091655° ± 3.07e-06
Arg. of Perihelion (ω)50.66270007° ± 2.70e-05
Mean Anomaly (M)84.63508074° ± 2.85e-05
Mean Motion (n)0.0662986043°/day ± 1.56e-09
Perihelion dist (q)5.77512802 AU ± 1.44e-07
Aphelion dist (Q)6.31682509 AU ± 1.49e-07
Orbital Period14.86647108 yr ± 3.50e-07
Orbit Solution
SourceJPL
Solution Date2025-04-14 15:28:00
RMS Residual0.369″
Uncertainty0
Orbit TypeJupiter-family Comet
MOID4.780000 AU
Observations Used739
Oppositions—
Arc Total2009-2025
First Observation Used—
Last Observation Used2025-02-05
Observations (52882)
Date Type RA Dec Mag Band Observatory
2002-09-02 20:58:03 C 20 37 22.26 -18 36 11.0 – c 213
2002-09-02 21:00:51 C 20 37 22.22 -18 36 11.5 – c 213
2002-09-02 21:09:57 C 20 37 22.00 -18 36 11.1 – c 213
2002-09-02 22:13:16 C 20 37 21.12 -18 36 11.5 – c 613
2002-09-02 22:21:23 C 20 37 21.02 -18 36 11.7 – c 613
2002-09-02 22:32:43 C 20 37 20.85 -18 36 12.5 – c 613
2002-09-03 20:38:53 C 20 37 01.86 -18 36 35.9 – c 118
2002-09-03 20:40:48 C 20 37 01.78 -18 36 36.0 – c 118
2002-09-04 21:20:42 C 20 36 41.15 -18 36 59.9 – d 170
2002-09-04 23:29:43 C 20 36 39.63 -18 37 00.7 – c 445
2002-09-04 23:39:52 C 20 36 39.26 -18 37 02.7 – c 445
2002-09-04 23:52:40 C 20 36 39.11 -18 37 03.9 – c 445
2002-09-05 03:13:19 C 20 36 36.34 -18 37 06.4 – c 699
2002-09-05 03:38:33 C 20 36 36.00 -18 37 06.1 – c 699
2002-09-05 04:03:40 C 20 36 35.64 -18 37 06.3 – c 699
2002-09-05 04:28:44 C 20 36 35.28 -18 37 06.3 – c 699
2002-09-05 14:54:34 C 20 36 26.74 -18 37 15.6 – – 360
2002-09-05 15:03:19 C 20 36 26.62 -18 37 16.0 – – 360
2002-09-06 21:27:12 C 20 36 02.56 -18 37 40.7 – d 170
2002-09-06 22:50:45 C 20 36 01.42 -18 37 41.7 – c 213
2002-09-06 22:51:29 C 20 36 01.45 -18 37 41.0 – c 213
2002-09-06 22:52:48 C 20 36 01.37 -18 37 41.1 – c 213
2002-09-06 23:01:28 C 20 36 01.23 -18 37 41.7 – c 445
2002-09-06 23:11:56 C 20 36 01.16 -18 37 42.6 – c 445
2002-09-07 00:07:18 C 20 36 00.38 -18 37 42.5 – – 232
2002-09-07 00:12:27 C 20 36 00.33 -18 37 42.0 – – 232
2002-09-07 21:58:39 C 20 35 43.16 -18 37 57.2 – c 235
2002-09-08 13:24:12 C 20 35 32.14 -18 38 07.6 – – 360
2002-09-08 13:28:18 C 20 35 32.08 -18 38 07.7 – – 360
2002-09-09 14:04:28 C 20 35 14.10 -18 38 25.9 – – 340
2002-09-09 14:19:48 C 20 35 14.07 -18 38 25.5 – – 340
2002-09-09 21:13:32 C 20 35 09.20 -18 38 25.9 – c J97
2002-09-09 21:15:45 C 20 35 09.21 -18 38 26.8 – c J97
2002-09-09 22:29:03 C 20 35 08.23 -18 38 24.7 – – 458
2002-09-09 22:39:59 C 20 35 08.08 -18 38 28.6 – – 458
2002-09-10 21:12:10 C 20 34 52.45 -18 38 35.8 – a 233
2002-09-10 21:22:09 C 20 34 52.34 -18 38 36.3 – a 233
2002-09-10 21:34:26 C 20 34 52.23 -18 38 35.9 – a 233
2002-09-10 21:46:41 C 20 34 52.09 -18 38 37.4 – a 233
2002-09-11 18:36:31 C 20 34 38.22 -18 38 44.2 – c 118
2002-09-11 18:51:31 C 20 34 38.07 -18 38 44.4 – c 118
2002-09-11 18:53:13 C 20 34 38.08 -18 38 44.7 – c 118
2002-09-11 18:58:33 C 20 34 38.00 -18 38 44.5 – c 118
2002-09-12 11:32:23 C 20 34 27.11 -18 38 48.9 – o 608
2002-09-12 11:47:42 C 20 34 26.94 -18 38 48.7 – o 608
2002-09-12 12:02:43 C 20 34 26.80 -18 38 48.7 – o 608
2002-09-12 14:58:05 C 20 34 24.95 -18 38 50.0 – – 360
2002-09-12 15:01:53 C 20 34 24.91 -18 38 50.1 – – 360
2002-09-12 22:51:16 C 20 34 20.03 -18 38 52.8 – c 613
2002-09-13 21:14:40 C 20 34 06.30 -18 38 56.2 – c 215