121P

⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2008-08-22 (JD 2454700.5)
Eccentricity (e)0.2040294259 ± 1.03e-07
Semi-major axis (a)4.5185643776 AU ± 2.34e-07
Inclination (i)20.72515328° ± 1.00e-05
Long. of Asc. Node (Ω)95.96491567° ± 1.78e-05
Arg. of Perihelion (ω)18.01565461° ± 2.79e-05
Mean Anomaly (M)167.88552122° ± 4.30e-05
Mean Motion (n)0.1026132310°/day ± 7.96e-09
Perihelion dist (q)3.59664428 AU ± 5.01e-07
Aphelion dist (Q)5.44048447 AU ± 5.44e-07
Orbital Period9.60525532 yr ± 7.45e-07
Orbit Solution
SourceJPL
Solution Date2026-05-22 14:12:30
RMS Residual0.623″
Uncertainty0
Orbit TypeJupiter-family Comet
MOID2.620150 AU
Observations Used772
Oppositions
Arc Total1989-2026
First Observation Used
Last Observation Used2026-05-13
Observations (798)
Date Type RA Dec Mag Band Observatory
1997-05-17 21:23:13 C 10 31 37.12 +28 25 25.9 118
1997-05-26 12:26:29 C 10 38 14.22 +27 16 20.2 360
1997-05-26 12:33:00 C 10 38 14.43 +27 16 18.0 360
1997-05-27 12:24:42 C 10 39 03.68 +27 08 04.1 897
1997-05-27 13:04:50 C 10 39 05.00 +27 07 49.3 897
1997-06-15 21:32:49 C 10 57 01.52 +24 19 41.0 118
1997-06-15 21:43:50 C 10 57 01.97 +24 19 36.3 118
1997-07-03 11:42:59 C 11 15 46.76 +21 37 34.4 360
1997-07-03 11:55:59 C 11 15 47.37 +21 37 28.7 360
1998-03-29 00:50:51 C 15 19 30.88 +02 05 25.4 504
2003-09-22 02:38:37 C 03 02 15.60 -05 50 41.1 o 461
2003-09-22 02:43:28 C 03 02 15.56 -05 50 42.2 o 461
2003-09-22 02:48:19 C 03 02 15.52 -05 50 43.4 o 461
2003-09-22 02:53:07 C 03 02 15.48 -05 50 44.4 o 461
2003-09-23 02:55:11 C 03 02 05.28 -05 55 26.8 o 461
2003-09-23 02:59:40 C 03 02 05.24 -05 55 28.1 o 461
2003-09-23 03:04:09 C 03 02 05.21 -05 55 28.7 o 461
2003-09-23 03:08:40 C 03 02 05.17 -05 55 29.3 o 461
2003-09-24 02:37:45 C 03 01 53.97 -06 00 06.7 o 461
2003-09-24 02:41:55 C 03 01 53.97 -06 00 07.4 o 461
2003-09-24 02:55:47 C 03 01 53.88 -06 00 10.4 o 461
2003-09-30 10:16:47 C 03 00 13.72 -06 30 01.7 291
2003-09-30 10:27:29 C 03 00 13.57 -06 30 03.9 291
2003-09-30 10:38:03 C 03 00 13.41 -06 30 06.0 291
2003-10-01 07:18:19 C 02 59 56.25 -06 34 09.1 o 699
2003-10-01 07:41:09 C 02 59 55.83 -06 34 12.6 o 699
2003-10-01 08:04:09 C 02 59 55.52 -06 34 18.9 o 699
2003-10-01 08:27:11 C 02 59 55.16 -06 34 22.7 o 699
2003-10-01 11:11:23 C 02 59 52.61 -06 34 54.6 d 291
2003-10-01 11:22:04 C 02 59 52.46 -06 34 56.7 d 291
2003-10-01 11:32:39 C 02 59 52.29 -06 34 58.8 d 291
2003-10-19 15:21:22 C 02 50 38.10 -07 51 29.1 360
2003-10-19 15:27:42 C 02 50 37.89 -07 51 30.1 360
2003-10-26 00:31:17 C 02 46 15.59 -08 10 56.5 c 204
2003-10-26 00:36:30 C 02 46 15.43 -08 10 56.9 c 204
2003-10-26 00:41:43 C 02 46 15.24 -08 10 57.7 c 204
2003-10-29 16:10:17 C 02 43 35.40 -08 19 25.6 360
2003-10-29 16:18:02 C 02 43 35.19 -08 19 25.9 360
2003-11-17 13:11:38 C 02 29 26.48 -08 25 00.9 360
2003-11-17 13:17:42 C 02 29 26.27 -08 24 59.8 360
2003-11-23 12:55:36 C 02 25 21.65 -08 11 58.5 360
2003-11-23 13:02:11 C 02 25 21.46 -08 11 57.6 360
2003-11-26 04:53:37 C 02 23 41.26 -08 03 47.7 c 704
2003-11-26 05:09:34 C 02 23 40.90 -08 03 45.3 c 704
2003-11-26 05:25:31 C 02 23 40.40 -08 03 43.7 c 704
2003-11-26 05:43:02 C 02 23 39.96 -08 03 41.7 c 704
2003-12-13 04:35:28 C 02 15 48.46 -06 40 08.8 c 704
2003-12-13 05:31:55 C 02 15 47.73 -06 39 51.2 c 704
2003-12-13 05:50:53 C 02 15 47.54 -06 39 46.7 c 704
2003-12-13 05:55:14 C 02 15 47.50 -06 39 46.4 c 644