Gehrels 2 (78P)

⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2016-01-21 (JD 2457408.5)
Eccentricity (e)0.4611833286 ± 9.95e-08
Semi-major axis (a)3.7374830666 AU ± 6.30e-08
Inclination (i)6.25032147° ± 4.77e-06
Long. of Asc. Node (Ω)210.55899221° ± 3.97e-05
Arg. of Perihelion (ω)192.73377389° ± 4.80e-05
Mean Anomaly (M)200.64643491° ± 1.31e-05
Mean Motion (n)0.1364065495°/day ± 3.45e-09
Perihelion dist (q)2.01381819 AU ± 3.73e-07
Aphelion dist (Q)5.46114795 AU ± 3.83e-07
Orbital Period7.22565219 yr ± 1.83e-07
Orbit Solution
SourceJPL
Solution Date2026-03-07 15:22:14
RMS Residual0.611″
Uncertainty0
Orbit TypeJupiter-family Comet
MOID1.022970 AU
Observations Used6064
Oppositions—
Arc Total2011-2026
First Observation Used—
Last Observation Used2026-01-25
Observations (8697)
Date Type RA Dec Mag Band Observatory
2011-10-23 21:49:45 C 23 36 06.60 +01 26 10.9 – r 585
2011-10-23 21:51:54 C 23 36 06.58 +01 26 10.4 – r 585
2011-10-23 21:53:58 C 23 36 06.56 +01 26 10.0 – r 585
2011-10-23 21:55:02 C 23 36 06.55 +01 26 09.6 – r 585
2011-10-23 22:02:11 C 23 36 06.53 +01 26 07.8 – r 585
2011-10-23 22:03:12 C 23 36 06.52 +01 26 07.4 – r 585
2011-10-23 22:04:15 C 23 36 06.52 +01 26 07.2 – r 585
2011-10-23 22:05:26 C 23 36 06.50 +01 26 06.8 – r 585
2011-10-23 22:06:40 C 23 36 06.49 +01 26 06.6 – r 585
2011-10-23 22:07:48 C 23 36 06.49 +01 26 06.3 – r 585
2011-10-23 22:08:50 C 23 36 06.46 +01 26 06.3 – r 585
2011-10-24 23:23:14 C 23 36 01.31 +01 19 49.2 – u 958
2011-10-24 23:40:43 C 23 36 01.23 +01 19 44.8 – u 958
2011-10-24 23:56:24 C 23 36 01.18 +01 19 41.2 – u 958
2011-10-25 04:25:37 C 23 36 00.52 +01 18 36.4 – t H47
2011-10-25 04:34:21 C 23 36 00.49 +01 18 34.2 – t H47
2011-10-25 04:42:37 C 23 36 00.44 +01 18 32.2 – t H47
2011-10-25 21:52:56 C 23 35 58.37 +01 14 22.8 – w J38
2011-10-25 21:54:34 C 23 35 58.33 +01 14 22.7 – u 958
2011-10-25 21:55:30 C 23 35 58.36 +01 14 22.2 – w J38
2011-10-25 22:05:49 C 23 35 58.31 +01 14 19.7 – w J38
2011-10-25 22:10:22 C 23 35 58.28 +01 14 18.8 – u 958
2011-10-25 22:28:01 C 23 35 58.23 +01 14 14.4 – u 958
2011-10-26 12:37:57 C 23 35 57.10 +01 11 02.9 – u D90
2011-10-26 12:51:20 C 23 35 57.06 +01 10 59.8 – u D90
2011-10-26 13:04:41 C 23 35 57.02 +01 10 56.5 – u D90
2011-10-26 21:28:22 C 23 35 56.63 +01 08 50.1 – a 233
2011-10-26 21:34:11 C 23 35 56.62 +01 08 48.7 – a 233
2011-10-26 21:40:45 C 23 35 56.61 +01 08 47.4 – a 233
2011-10-26 21:44:58 C 23 35 56.65 +01 08 46.2 – u B59
2011-10-26 21:49:05 C 23 35 56.66 +01 08 45.1 – u B59
2011-10-26 21:53:12 C 23 35 56.66 +01 08 44.4 – u B59
2011-10-26 21:57:19 C 23 35 56.64 +01 08 43.3 – u B59
2011-10-26 22:01:26 C 23 35 56.75 +01 08 43.6 – u B59
2011-10-27 12:34:31 C 23 35 56.62 +01 05 25.0 – u 367
2011-10-27 12:35:40 C 23 35 56.60 +01 05 24.6 – u 367
2011-10-27 12:36:50 C 23 35 56.60 +01 05 24.3 – u 367
2011-10-27 14:30:00 C 23 35 56.45 +01 04 59.1 – u 900
2011-10-27 14:40:17 C 23 35 56.44 +01 04 56.7 – u 900
2011-10-27 18:06:41 C 23 35 56.80 +01 04 08.7 – o B42
2011-10-27 18:15:51 C 23 35 56.76 +01 04 06.9 – o B42
2011-10-27 18:24:59 C 23 35 56.77 +01 04 04.6 – o B42
2011-10-27 18:34:09 C 23 35 56.80 +01 04 02.5 – o B42
2011-10-27 20:01:36 C 23 35 56.75 +01 03 44.5 – c 583
2011-10-27 21:16:05 C 23 35 56.93 +01 03 27.5 – u 958
2011-10-27 21:32:49 C 23 35 56.88 +01 03 23.5 – u 958
2011-10-27 21:47:43 C 23 35 56.85 +01 03 20.0 – w J01
2011-10-27 22:11:16 C 23 35 56.85 +01 03 14.8 – w J01
2011-10-27 22:42:53 C 23 35 56.81 +01 03 07.7 – w J01
2011-10-28 11:39:13 C 23 35 57.80 +01 00 18.5 – u 379