139P

⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2011-03-18 (JD 2455638.5)
Eccentricity (e)0.2475621026 ± 1.73e-07
Semi-major axis (a)4.5231196176 AU ± 8.22e-08
Inclination (i)2.32907670° ± 1.83e-05
Long. of Asc. Node (Ω)242.35794083° ± 3.27e-04
Arg. of Perihelion (ω)165.79103526° ± 3.33e-04
Mean Anomaly (M)108.73049424° ± 4.96e-05
Mean Motion (n)0.1024582572°/day ± 2.79e-09
Perihelion dist (q)3.40336661 AU ± 7.84e-07
Aphelion dist (Q)5.64287262 AU ± 7.89e-07
Orbital Period9.61978381 yr ± 2.62e-07
Orbit Solution
SourceJPL
Solution Date2026-07-28 14:32:31
RMS Residual0.705″
Uncertainty0
Orbit TypeJupiter-family Comet
MOID2.414270 AU
Observations Used564
Oppositions
Arc Total1939-2026
First Observation Used
Last Observation Used2026-07-26
Observations (581)
Date Type RA Dec Mag Band Observatory
1939-10-07 21:45:31 A 02 02 51.70 +14 47 16.7 062
1939-10-18 21:14:13 A 01 56 26.81 +14 10 32.5 062
1939-10-20 20:27:21 A 01 55 14.01 +14 03 19.1 062
1939-11-11 17:46:27 A 01 42 22.54 +12 40 28.3 062
1998-11-16 11:24:08 C 03 41 33.52 +19 58 56.0 u 566
1998-11-16 11:39:18 C 03 41 33.13 +19 58 53.9 u 566
1998-11-16 11:54:17 C 03 41 32.66 +19 58 51.4 u 566
1998-11-18 06:13:54 C 03 40 20.80 +19 53 48.8 z 704
1998-11-18 07:18:12 C 03 40 18.84 +19 53 42.4 z 704
1998-11-18 08:22:13 C 03 40 16.98 +19 53 33.7 z 704
1998-11-18 09:27:03 C 03 40 15.06 +19 53 24.9 z 704
1998-11-21 05:55:10 C 03 38 18.89 +19 45 12.7 z 704
1998-11-21 06:49:51 C 03 38 17.24 +19 45 06.2 z 704
1998-11-21 08:37:17 C 03 38 14.02 +19 44 53.7 z 704
1998-11-24 04:08:36 C 03 36 20.46 +19 36 42.6 z 704
1998-11-24 06:26:47 C 03 36 16.56 +19 36 23.4 z 704
1998-11-24 07:36:47 C 03 36 14.41 +19 36 13.5 z 704
1998-11-24 08:45:05 C 03 36 12.35 +19 36 05.0 z 704
1998-11-25 06:56:20 C 03 35 35.70 +19 33 29.5 c 699
1998-11-25 07:33:02 C 03 35 34.61 +19 33 24.7 c 699
1998-11-25 08:09:46 C 03 35 33.61 +19 33 20.2 c 699
1998-12-06 07:18:22 C 03 28 44.43 +19 02 35.8 658
1998-12-06 07:25:37 C 03 28 44.28 +19 02 34.7 658
1998-12-07 02:53:00 C 03 28 17.06 +19 00 27.0 709
1998-12-07 03:04:40 C 03 28 16.79 +19 00 25.8 709
1998-12-07 18:26:09 C 03 27 55.38 +18 58 44.0 587
1998-12-07 19:21:44 C 03 27 54.29 +18 58 39.6 587
1998-12-07 20:04:54 C 03 27 53.26 +18 58 35.5 587
1998-12-07 22:30:45 C 03 27 49.89 +18 58 20.2 046
1998-12-07 22:33:55 C 03 27 49.70 +18 58 17.7 046
1998-12-07 22:36:35 C 03 27 49.72 +18 58 16.8 046
1998-12-08 06:24:59 C 03 27 39.00 +18 57 28.1 c 699
1998-12-08 06:57:10 c 03 27 38.31 +18 57 25.6 691
1998-12-08 07:01:39 C 03 27 38.25 +18 57 24.2 c 699
1998-12-08 07:30:02 c 03 27 37.50 +18 57 21.6 691
1998-12-08 07:38:23 C 03 27 37.25 +18 57 20.6 c 699
1998-12-08 08:01:42 c 03 27 36.80 +18 57 18.2 691
1998-12-08 12:27:33 C 03 27 30.95 +18 56 50.0 867
1998-12-08 12:37:03 C 03 27 30.73 +18 56 48.8 867
1998-12-08 12:50:02 C 03 27 30.45 +18 56 47.7 867
1998-12-08 12:59:02 C 03 27 30.23 +18 56 46.5 867
1998-12-08 20:23:30 C 03 27 20.16 +18 55 56.2 108
1998-12-08 20:33:12 C 03 27 20.03 +18 55 56.7 108
1998-12-08 20:53:26 C 03 27 19.59 +18 55 54.2 108
1998-12-09 11:55:00 03 26 59.87 +18 54 22.4 372
1998-12-09 14:08:00 03 26 56.81 +18 54 08.1 372
1998-12-09 20:16:42 C 03 26 48.79 +18 53 28.2 046
1998-12-09 20:19:32 C 03 26 48.75 +18 53 27.8 046
1998-12-09 20:23:09 C 03 26 48.66 +18 53 27.0 046
1998-12-09 20:26:26 C 03 26 48.58 +18 53 27.0 046