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
2011-08-27 07:17:20 C 22 04 39.79 -02 49 31.6 o H21
2011-08-27 07:25:15 C 22 04 39.53 -02 49 25.7 o H21
2011-08-27 07:33:15 C 22 04 39.26 -02 49 19.8 o H21
2011-08-27 07:54:42 C 22 04 38.57 -02 49 04.2 o H21
2011-08-28 13:41:25 C 22 03 52.44 -02 27 42.7 u 379
2011-08-28 14:00:16 C 22 03 51.87 -02 27 29.4 u 379
2011-08-28 14:11:41 C 22 03 51.48 -02 27 21.7 u 379
2011-08-28 14:14:21 C 22 03 51.42 -02 27 19.9 u 379
2011-08-28 14:20:05 C 22 03 51.22 -02 27 15.6 u 379
2011-08-28 14:22:45 C 22 03 51.14 -02 27 13.9 u 379
2011-08-28 14:25:26 C 22 03 51.06 -02 27 12.1 u 379
2011-08-28 14:37:33 C 22 03 50.65 -02 27 03.8 u 379
2011-08-28 14:49:20 C 22 03 50.30 -02 26 55.6 u 379
2011-08-28 14:52:01 C 22 03 50.17 -02 26 53.8 u 379
2011-08-29 14:10:08 C 22 03 15.81 -02 11 09.5 u 379
2011-08-29 14:20:34 C 22 03 15.51 -02 11 02.8 u 379
2011-08-29 14:23:14 C 22 03 15.42 -02 11 01.7 u 379
2011-08-29 14:32:40 C 22 03 15.14 -02 10 54.8 u 379
2011-08-29 14:41:09 C 22 03 14.87 -02 10 49.3 u 379
2011-08-29 14:46:28 C 22 03 14.68 -02 10 45.9 u 379
2011-08-31 09:37:49 C 22 02 16.727 -01 43 47.58 L F51
2011-08-31 09:59:17 C 22 02 16.116 -01 43 34.75 L F51
2011-08-31 10:20:46 C 22 02 15.508 -01 43 21.93 L F51
2011-08-31 20:45:34 C 22 02 02.83 -01 37 24.7 u A98
2011-08-31 20:48:50 C 22 02 02.72 -01 37 22.5 u A98
2011-08-31 20:59:27 C 22 02 02.42 -01 37 16.2 u A98
2011-08-31 21:19:50 C 22 02 02.39 -01 37 01.5 c A48
2011-08-31 21:39:57 C 22 02 01.86 -01 36 50.2 c A48
2011-08-31 22:00:03 C 22 02 01.33 -01 36 38.4 c A48
2011-08-31 22:21:34 C 22 02 00.77 -01 36 25.7 c A48
2011-09-01 07:30:27 C 22 01 48.94 -01 31 06.1 u H45
2011-09-01 07:33:30 C 22 01 48.88 -01 31 04.5 u H45
2011-09-01 07:35:10 C 22 01 48.83 -01 31 03.5 u H45
2011-09-01 07:37:30 C 22 01 48.78 -01 31 02.3 u H45
2011-09-01 07:39:08 C 22 01 48.73 -01 31 01.2 u H45
2011-09-01 07:41:05 C 22 01 48.69 -01 31 00.2 u H45
2011-09-04 08:31:51 C 22 00 33.686 -00 52 34.80 L F51
2011-09-04 08:47:34 C 22 00 33.349 -00 52 27.18 L F51
2011-09-05 12:58:57 C 22 00 09.61 -00 39 18.9 u 379
2011-09-05 13:01:37 C 22 00 09.58 -00 39 17.3 u 379
2011-09-05 13:04:16 C 22 00 09.50 -00 39 16.1 u 379
2011-09-05 13:13:14 C 22 00 09.37 -00 39 12.0 u 379
2011-09-05 22:46:44 C 22 00 01.73 -00 34 57.7 t 204
2011-09-05 22:49:32 C 22 00 01.68 -00 34 56.3 t 204
2011-09-05 22:52:37 C 22 00 01.63 -00 34 54.9 t 204
2011-09-05 22:57:02 C 22 00 01.56 -00 34 53.1 t 204
2011-09-05 23:00:43 C 22 00 01.49 -00 34 51.4 t 204
2011-09-06 05:48:22 C 21 59 56.48 -00 31 48.2 u H45
2011-09-06 05:50:09 C 21 59 56.46 -00 31 47.4 u H45
2011-09-06 05:52:03 C 21 59 56.42 -00 31 46.6 u H45