311P

⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2017-07-27 (JD 2457961.5)
Eccentricity (e)0.1156465709 ± 1.32e-07
Semi-major axis (a)2.1886928320 AU ± 2.71e-08
Inclination (i)4.96658171° ± 1.26e-05
Long. of Asc. Node (Ω)279.25802401° ± 2.09e-04
Arg. of Perihelion (ω)143.98682684° ± 2.48e-04
Mean Anomaly (M)4.97792663° ± 1.19e-04
Mean Motion (n)0.3043875258°/day ± 5.65e-09
Perihelion dist (q)1.93557801 AU ± 2.89e-07
Aphelion dist (Q)2.44180765 AU ± 2.90e-07
Orbital Period3.23806398 yr ± 6.01e-08
Orbit Solution
SourceJPL
Solution Date2026-07-28 14:12:27
RMS Residual0.363″
Uncertainty0
Orbit TypeEncke-type Comet
MOID0.950420 AU
Observations Used278
Oppositions
Arc Total2005-2026
First Observation Used
Last Observation Used2026-07-22
Observations (277)
Date Type RA Dec Mag Band Observatory
2005-01-17 08:34:58 C 09 11 05.58 +11 40 30.8 c 691
2005-01-17 09:16:12 C 09 11 03.75 +11 40 32.2 c 691
2005-01-17 09:56:52 C 09 11 01.98 +11 40 33.3 c 691
2005-03-12 03:47:39 C 08 26 17.47 +13 14 31.3 q 645
2005-03-12 03:48:51 C 08 26 17.46 +13 14 31.4 q 645
2005-03-12 03:52:25 C 08 26 17.43 +13 14 31.5 q 645
2010-10-17 05:36:16 C 01 46 35.83 +21 05 43.4 r G96
2010-10-17 05:45:42 C 01 46 35.43 +21 05 41.6 r G96
2010-10-17 05:55:07 C 01 46 35.00 +21 05 39.3 r G96
2010-10-17 06:04:44 C 01 46 34.60 +21 05 37.2 r G96
2010-11-02 04:17:47 C 01 31 04.36 +19 14 00.1 r G96
2010-11-02 04:27:42 C 01 31 03.97 +19 13 56.7 r G96
2010-11-02 04:37:35 C 01 31 03.57 +19 13 53.4 r G96
2010-11-02 04:47:28 C 01 31 03.21 +19 13 50.0 r G96
2010-12-03 03:50:27 C 01 18 11.05 +15 39 58.3 r G96
2010-12-03 04:01:50 C 01 18 11.16 +15 39 56.5 r G96
2010-12-03 04:13:41 C 01 18 11.19 +15 39 54.0 r G96
2010-12-03 04:26:02 C 01 18 11.23 +15 39 52.0 r G96
2013-08-15 11:56:09 C 23 03 42.106 +02 08 21.38 L F51
2013-08-15 12:18:31 C 23 03 41.364 +02 08 20.66 L F51
2013-08-15 12:40:57 C 23 03 40.631 +02 08 19.84 L F51
2013-08-15 13:03:18 C 23 03 39.898 +02 08 19.09 L F51
2013-08-16 10:54:02 C 23 02 59.100 +02 07 30.85 t 568
2013-08-16 10:56:28 C 23 02 59.020 +02 07 30.75 t 568
2013-08-16 10:58:50 C 23 02 58.941 +02 07 30.66 t 568
2013-08-17 08:27:32 C 23 02 17.13 +02 06 38.6 q W87
2013-08-17 08:31:58 C 23 02 16.98 +02 06 38.7 q W87
2013-08-17 08:36:23 C 23 02 16.83 +02 06 38.5 q W87
2013-08-17 08:40:48 C 23 02 16.67 +02 06 38.2 q W87
2013-08-17 08:45:12 C 23 02 16.52 +02 06 37.9 q W87
2013-08-17 08:49:37 C 23 02 16.38 +02 06 37.8 q W87
2013-08-17 08:54:02 C 23 02 16.21 +02 06 37.6 q W87
2013-08-17 08:58:26 C 23 02 16.07 +02 06 37.3 q W87
2013-08-26 06:15:52 C 22 54 31.13 +01 47 58.8 r H21
2013-08-26 06:33:56 C 22 54 30.38 +01 47 56.8 r H21
2013-08-26 06:51:52 C 22 54 29.66 +01 47 54.4 r H21
2013-08-27 00:11:58 C 22 53 48.24 +01 45 52.4 q K91
2013-08-27 00:15:33 C 22 53 48.08 +01 45 51.7 q K91
2013-08-27 00:19:07 C 22 53 47.94 +01 45 51.4 q K91
2013-08-27 00:22:41 C 22 53 47.79 +01 45 51.2 q K91
2013-08-27 00:26:15 C 22 53 47.64 +01 45 50.5 q K91
2013-08-27 00:29:49 C 22 53 47.48 +01 45 50.0 q K91
2013-08-27 00:33:23 C 22 53 47.35 +01 45 49.5 q K91
2013-08-27 00:36:57 C 22 53 47.20 +01 45 49.0 q K91
2013-08-27 00:40:31 C 22 53 47.04 +01 45 48.8 q K91
2013-08-27 00:44:04 C 22 53 46.90 +01 45 48.2 q K91
2013-08-27 00:47:38 C 22 53 46.76 +01 45 47.9 q K91
2013-08-27 00:51:12 C 22 53 46.62 +01 45 47.4 q K91
2013-08-28 13:09:21 C 22 52 19.05 +01 40 54.9 c Q62
2013-08-28 13:12:56 C 22 52 18.91 +01 40 54.3 c Q62