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
2026-06-13 21:36:59 C 11 03 28.28 -01 03 48.6 – Z C10
2026-06-13 21:41:57 C 11 03 28.310 -01 03 49.14 – V R17
2026-06-13 21:45:54 C 11 03 28.37 -01 03 49.7 – Z C10
2026-06-13 22:02:20 C 11 03 28.541 -01 03 50.36 – V R17
2026-06-13 22:22:42 C 11 03 28.788 -01 03 51.08 – V R17
2026-06-14 21:21:59 C 11 03 45.144 -01 05 00.13 – V R17
2026-06-14 21:42:21 C 11 03 45.396 -01 05 01.00 – V R17
2026-06-14 22:02:45 C 11 03 45.626 -01 05 02.00 – V R17
2026-06-14 22:23:08 C 11 03 45.864 -01 05 03.19 – V R17
2026-06-17 20:51:29 C 11 04 38.83 -01 08 53.0 – Z L27
2026-06-17 21:09:39 C 11 04 39.08 -01 08 53.7 – Z L27
2026-06-17 21:27:33 C 11 04 39.31 -01 08 55.2 – Z L27
2026-06-18 07:59:44 B 11 04 47.54 -01 09 30.8 – Z E94
2026-06-18 08:03:48 B 11 04 47.59 -01 09 31.0 – Z E94
2026-06-18 08:06:52 B 11 04 47.65 -01 09 31.2 – Z E94
2025-03-05 23:46:26 B 09 46 15.077 +10 11 03.48 – V B50
2025-03-05 23:49:20 B 09 46 15.137 +10 11 03.05 – V B50
2025-03-05 23:54:23 B 09 46 15.012 +10 11 04.42 – V B50
2026-06-13 21:36:46 C 11 03 28.181 -01 03 49.68 – W 215
2026-06-13 21:38:38 C 11 03 28.231 -01 03 49.50 – W 215
2026-06-13 21:40:30 C 11 03 28.301 -01 03 49.18 – W 215
2026-06-15 11:13:24 C 11 03 55.231 -01 05 41.96 – Z 323
2026-06-15 11:19:02 C 11 03 55.265 -01 05 41.50 – Z 323
2026-06-15 11:24:41 C 11 03 55.368 -01 05 42.36 – Z 323
2026-06-15 11:49:20 C 11 03 55.788 -01 05 46.75 – q Q14
2026-06-15 11:58:34 C 11 03 55.908 -01 05 47.00 – q Q14
2026-06-17 11:49:22 C 11 04 31.829 -01 08 21.62 – Z 323
2026-06-17 11:55:00 C 11 04 31.848 -01 08 21.34 – Z 323
2026-06-17 12:00:38 C 11 04 31.934 -01 08 21.59 – Z 323
2026-06-18 20:52:48 C 11 04 57.76 -01 10 18.7 – Z L27
2026-06-18 21:10:58 C 11 04 58.03 -01 10 19.6 – Z L27
2026-06-18 21:28:52 C 11 04 58.32 -01 10 20.9 – Z L27
2026-06-19 20:49:59 C 11 05 17.17 -01 11 46.3 – Z L27
2026-06-19 21:08:09 C 11 05 17.44 -01 11 47.4 – Z L27
2026-06-19 21:26:02 C 11 05 17.73 -01 11 49.0 – Z L27
2026-06-20 04:29:33 B 11 05 23.426 -01 12 15.30 – W V21
2026-06-20 05:04:50 B 11 05 23.873 -01 12 16.74 – W V21
2026-06-20 05:10:43 B 11 05 23.966 -01 12 17.57 – W V21
2026-06-20 21:06:33 C 11 05 37.21 -01 13 13.5 – Z L27
2026-06-20 21:25:33 C 11 05 37.46 -01 13 15.2 – Z L27
2026-06-21 20:54:39 C 11 05 57.47 -01 14 53.2 – Z L27
2026-06-21 21:21:47 C 11 05 57.71 -01 14 53.2 – Z L27
2026-06-23 04:46:20 B 11 06 25.083 -01 17 04.13 – Z V21
2026-06-23 05:20:58 B 11 06 25.509 -01 17 04.62 – Z V21
2026-06-24 23:37:11 C 11 07 03.475 -01 20 06.40 – V W68
2026-06-24 23:41:44 C 11 07 03.583 -01 20 06.29 – V W68
2026-06-25 00:01:20 C 11 07 03.878 -01 20 07.58 – V W68
2026-06-25 00:09:08 C 11 07 04.010 -01 20 08.77 – V W68
2026-06-26 20:49:56 C 11 07 45.45 -01 23 33.5 – Z L27
2026-06-26 21:06:12 C 11 07 45.71 -01 23 34.6 – Z L27