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
2012-02-14 10:48:50 C 01 56 48.61 +09 15 16.9 – u 367
2012-02-14 10:50:34 C 01 56 48.77 +09 15 17.7 – u 367
2012-02-14 10:52:39 C 01 56 48.91 +09 15 18.1 – u D95
2012-02-14 10:58:52 C 01 56 49.45 +09 15 20.5 – u D95
2012-02-14 16:42:54 C 01 57 18.77 +09 17 37.5 – c B42
2012-02-14 16:47:00 C 01 57 19.20 +09 17 38.2 – c B42
2012-02-14 16:51:07 C 01 57 19.49 +09 17 39.3 – c B42
2012-02-14 16:55:13 C 01 57 19.84 +09 17 41.7 – c B42
2012-02-14 16:59:19 C 01 57 20.18 +09 17 43.3 – c B42
2012-02-14 17:03:26 C 01 57 20.60 +09 17 45.2 – c B42
2012-02-14 19:50:59 C 01 57 34.69 +09 18 51.1 – i C91
2012-02-14 19:59:59 C 01 57 35.48 +09 18 54.4 – i C91
2012-02-15 09:26:43 C 01 58 44.39 +09 24 15.4 – o D93
2012-02-15 09:28:43 C 01 58 44.42 +09 24 15.5 – o D93
2012-02-15 09:30:23 C 01 58 44.54 +09 24 17.1 – o D93
2012-02-15 09:32:03 C 01 58 44.63 +09 24 17.4 – o D93
2012-02-15 18:36:02 C 01 59 31.11 +09 27 53.1 – w J97
2012-02-15 18:40:12 C 01 59 31.54 +09 27 54.8 – w J97
2012-02-15 18:46:47 C 01 59 32.01 +09 27 57.3 – w J97
2012-02-15 19:35:38 C 01 59 36.24 +09 28 17.2 – w C86
2012-02-15 19:42:04 C 01 59 36.75 +09 28 19.5 – w C86
2012-02-15 19:48:30 C 01 59 37.36 +09 28 21.4 – w C86
2012-02-16 09:30:20 C 02 00 47.49 +09 33 47.5 – o D93
2012-02-16 09:32:00 C 02 00 47.63 +09 33 48.4 – o D93
2012-02-16 09:33:39 C 02 00 47.77 +09 33 49.0 – o D93
2012-02-16 18:19:55 C 02 01 32.87 +09 37 17.7 – o B75
2012-02-16 18:21:48 C 02 01 33.14 +09 37 16.4 – o B75
2012-02-16 18:23:11 C 02 01 33.15 +09 37 19.1 – o B75
2012-02-16 19:22:09 C 02 01 38.11 +09 37 41.6 – u 235
2012-02-16 19:25:23 C 02 01 38.46 +09 37 42.7 – u 235
2012-02-16 19:28:37 C 02 01 38.70 +09 37 43.7 – u 235
2012-02-16 19:30:39 C 02 01 38.90 +09 37 45.0 – w J97
2012-02-16 19:32:32 C 02 01 39.03 +09 37 45.9 – w J97
2012-02-16 19:35:19 C 02 01 39.30 +09 37 47.1 – w J97
2012-02-17 09:27:23 C 02 02 50.64 +09 43 16.9 – o D93
2012-02-17 09:29:01 C 02 02 50.78 +09 43 17.1 – o D93
2012-02-17 09:30:41 C 02 02 50.93 +09 43 18.0 – o D93
2012-02-17 18:43:49 C 02 03 38.50 +09 46 56.1 – u 958
2012-02-17 18:54:45 C 02 03 39.45 +09 47 00.2 – u 958
2012-02-17 19:05:49 C 02 03 40.40 +09 47 04.5 – u 958
2012-02-17 19:16:54 C 02 03 41.36 +09 47 09.2 – u 958
2012-02-17 19:28:01 C 02 03 42.27 +09 47 13.4 – u 958
2012-02-17 19:34:45 C 02 03 42.82 +09 47 16.5 – w 939
2012-02-17 19:39:17 C 02 03 43.24 +09 47 18.0 – u 958
2012-02-17 19:39:29 C 02 03 43.23 +09 47 18.4 – w 939
2012-02-17 19:44:11 C 02 03 43.65 +09 47 20.3 – w 939
2012-02-17 20:02:06 C 02 03 45.23 +09 47 28.2 – w J24
2012-02-17 20:05:28 C 02 03 45.47 +09 47 29.3 – w J24
2012-02-17 20:08:50 C 02 03 45.78 +09 47 30.8 – w J24
2012-02-17 20:12:46 C 02 03 46.10 +09 47 32.4 – w J24