420187 (2011 GA55)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4825978834 ± 7.39e-09
Semi-major axis (a)2.1705860790 AU ± 5.37e-09
Inclination (i)8.73138493° ± 1.55e-06
Long. of Asc. Node (Ω)319.63278299° ± 4.65e-06
Arg. of Perihelion (ω)317.27360728° ± 6.14e-06
Mean Anomaly (M)184.45120450° ± 7.01e-06
Mean Motion (n)0.3082100218°/day ± 1.14e-09
Perihelion dist (q)1.12306583 AU ± 1.63e-08
Aphelion dist (Q)3.21810633 AU ± 1.79e-08
Orbital Period3.19790472 yr ± 1.19e-08
Physical Parameters
H (abs. magnitude)18.16
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.181″
Uncertainty0
Orbit TypeAmor
MOID0.140014 AU
Observations Used450
Oppositions11
Arc Total2008-2024
First Observation Used2008-10-10
Last Observation Used2024-12-01
Observations (472)
Date Type RA Dec Mag Band Observatory
2011-08-24 04:09:34 C 22 06 53.88 -03 49 47.7 o H21
2011-08-24 04:21:09 C 22 06 53.44 -03 49 37.0 o H21
2011-08-24 04:37:21 C 22 06 52.83 -03 49 23.3 o H21
2011-08-24 04:52:24 C 22 06 52.23 -03 49 10.2 o H21
2011-08-24 05:06:12 C 22 06 51.71 -03 48 58.1 o H21
2011-08-24 05:21:16 C 22 06 51.16 -03 48 45.0 o H21
2011-08-24 05:32:51 C 22 06 50.70 -03 48 35.1 o H21
2011-08-24 06:05:06 C 22 06 49.47 -03 48 07.3 o H21
2011-08-24 06:19:55 C 22 06 48.91 -03 47 54.9 o H21
2011-08-24 06:46:49 C 22 06 47.88 -03 47 31.1 o H21
2011-08-24 07:03:24 C 22 06 47.25 -03 47 17.0 o H21
2011-08-24 07:12:42 C 22 06 46.90 -03 47 09.2 o H21
2011-08-24 07:27:13 C 22 06 46.36 -03 46 56.4 o H21
2011-08-24 21:43:11 C 22 06 20.95 -03 34 53.2 r 106
2011-08-24 22:00:59 C 22 06 20.31 -03 34 38.1 r 106
2011-08-24 22:18:46 C 22 06 19.66 -03 34 23.5 r 106
2011-08-24 22:36:33 C 22 06 19.01 -03 34 08.8 r 106
2011-08-26 05:38:20 C 22 05 23.67 -03 09 02.9 o H21
2011-08-26 05:58:37 C 22 05 22.98 -03 08 46.7 o H21
2011-08-26 06:29:13 C 22 05 21.88 -03 08 22.9 o H21
2011-08-26 06:49:03 C 22 05 21.18 -03 08 07.5 o H21
2011-08-26 07:00:55 C 22 05 20.77 -03 07 58.2 o H21
2011-08-26 07:20:40 C 22 05 20.08 -03 07 42.8 o H21
2011-08-26 07:39:11 C 22 05 19.53 -03 07 26.8 u H45
2011-08-26 07:42:31 C 22 05 19.40 -03 07 24.0 u H45
2011-08-26 07:46:05 C 22 05 19.28 -03 07 21.2 u H45
2011-08-26 07:48:59 C 22 05 19.16 -03 07 18.9 u H45
2011-08-26 07:50:49 C 22 05 19.11 -03 07 17.5 u H45
2011-08-26 07:53:28 C 22 05 19.02 -03 07 15.6 u H45
2011-08-26 08:28:01 C 22 05 19.561 -03 06 42.57 L F51
2011-08-26 08:42:38 C 22 05 19.038 -03 06 31.27 L F51
2011-08-26 08:59:35 C 22 05 18.427 -03 06 18.12 L F51
2011-08-26 20:59:51 C 22 04 58.20 -02 57 15.2 u A78
2011-08-26 21:03:30 C 22 04 58.05 -02 57 12.4 u A78
2011-08-26 21:08:43 C 22 04 57.89 -02 57 08.9 u A78
2011-08-26 21:13:52 C 22 04 57.70 -02 57 04.9 u A78
2011-08-26 21:19:26 C 22 04 57.52 -02 57 00.5 u A78
2011-08-27 04:37:09 C 22 04 45.18 -02 51 30.6 o H21
2011-08-27 04:55:56 C 22 04 44.55 -02 51 16.6 o H21
2011-08-27 05:13:33 C 22 04 43.95 -02 51 03.5 o H21
2011-08-27 05:23:40 C 22 04 43.61 -02 50 56.1 o H21
2011-08-27 05:44:43 C 22 04 42.90 -02 50 40.5 o H21
2011-08-27 05:56:02 C 22 04 42.52 -02 50 32.0 o H21
2011-08-27 06:13:39 C 22 04 41.92 -02 50 19.0 o H21
2011-08-27 06:32:12 C 22 04 41.29 -02 50 05.1 o H21
2011-08-27 06:36:12 C 22 04 41.16 -02 50 02.1 o H21
2011-08-27 06:49:31 C 22 04 40.72 -02 49 52.5 o H21
2011-08-27 06:58:36 C 22 04 40.41 -02 49 45.6 o H21
2011-08-27 07:06:35 C 22 04 40.15 -02 49 39.5 o H21
2011-08-27 07:15:52 C 22 04 39.84 -02 49 32.7 o H21