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
2011-08-12 06:25:39 C 22 17 35.63 -09 19 36.8 t H21
2011-08-12 06:32:55 C 22 17 35.26 -09 19 26.1 t H21
2011-08-12 06:40:45 C 22 17 34.87 -09 19 14.5 t H21
2011-08-12 06:48:01 C 22 17 34.50 -09 19 03.8 t H21
2011-08-12 06:54:22 C 22 17 34.18 -09 18 54.4 t H21
2011-08-16 05:05:46 C 22 13 44.46 -07 10 42.2 t H21
2011-08-16 05:10:04 C 22 13 44.26 -07 10 36.9 t H21
2011-08-16 05:14:23 C 22 13 44.06 -07 10 31.4 t H21
2011-08-16 05:18:42 C 22 13 43.86 -07 10 26.0 t H21
2011-08-16 05:23:01 C 22 13 43.66 -07 10 20.6 t H21
2011-08-16 22:02:10 C 22 13 05.11 -06 49 48.7 w I99
2011-08-16 22:08:53 C 22 13 04.86 -06 49 40.5 w I99
2011-08-16 22:14:02 C 22 13 04.58 -06 49 33.9 w I99
2011-08-16 22:57:28 C 22 13 02.17 -06 48 43.4 c A53
2011-08-16 23:06:01 C 22 13 01.79 -06 48 33.1 c A53
2011-08-16 23:14:44 C 22 13 01.39 -06 48 22.3 c A53
2011-08-16 23:24:11 C 22 13 00.95 -06 48 11.2 c A53
2011-08-17 15:07:05 C 22 12 24.53 -06 29 21.2 o 300
2011-08-17 15:07:58 C 22 12 24.47 -06 29 20.3 o 300
2011-08-17 15:08:47 C 22 12 24.42 -06 29 19.3 o 300
2011-08-17 15:09:35 C 22 12 24.39 -06 29 18.7 o 300
2011-08-17 22:10:13 C 22 12 08.82 -06 21 10.6 u 160
2011-08-17 22:13:13 C 22 12 08.68 -06 21 06.9 u 160
2011-08-17 22:15:58 C 22 12 08.54 -06 21 04.0 u 160
2011-08-17 22:19:07 C 22 12 08.43 -06 21 00.1 u 160
2011-08-18 23:43:42 C 22 11 10.37 -05 52 11.1 u 160
2011-08-18 23:45:40 C 22 11 10.29 -05 52 09.0 u 160
2011-08-18 23:47:32 C 22 11 10.25 -05 52 06.9 u 160
2011-08-21 20:26:57 C 22 08 44.21 -04 40 54.7 u B67
2011-08-21 20:33:54 C 22 08 43.94 -04 40 48.0 u B67
2011-08-21 20:40:50 C 22 08 43.64 -04 40 41.3 u B67
2011-08-22 04:34:00 C 22 08 27.12 -04 33 04.2 o H21
2011-08-22 04:54:59 C 22 08 26.27 -04 32 44.3 o H21
2011-08-22 05:15:55 C 22 08 25.43 -04 32 24.5 o H21
2011-08-22 05:36:52 C 22 08 24.57 -04 32 04.4 o H21
2011-08-22 05:49:26 C 22 08 24.05 -04 31 52.4 o H21
2011-08-22 06:12:28 C 22 08 23.11 -04 31 30.6 o H21
2011-08-22 06:37:39 C 22 08 22.09 -04 31 06.6 o H21
2011-08-22 07:00:45 C 22 08 21.15 -04 30 44.7 o H21
2011-08-22 07:17:37 C 22 08 20.46 -04 30 28.7 o H21
2011-08-22 07:28:10 C 22 08 20.04 -04 30 18.6 o H21
2011-08-23 04:01:07 C 22 07 40.45 -04 11 13.3 o H21
2011-08-23 04:17:49 C 22 07 39.80 -04 10 58.2 o H21
2011-08-23 04:30:50 C 22 07 39.29 -04 10 46.4 o H21
2011-08-23 04:43:49 C 22 07 38.78 -04 10 34.6 o H21
2011-08-23 05:06:08 C 22 07 37.91 -04 10 14.4 o H21
2011-08-23 05:22:48 C 22 07 37.25 -04 09 59.3 o H21
2011-08-23 05:48:38 C 22 07 36.22 -04 09 35.8 o H21
2011-08-24 03:41:26 C 22 06 54.92 -03 50 11.5 o H21
2011-08-24 03:55:03 C 22 06 54.39 -03 49 59.6 o H21