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
2011-09-29 04:34:15 C 22 02 49.21 +01 48 08.3 19.5 c 704
2011-09-29 04:56:21 C 22 02 49.57 +01 48 11.6 19.6 c 704
2011-09-29 05:15:00 C 22 02 49.91 +01 48 14.0 18.9 c 704
2011-09-30 02:17:32 C 22 03 17.41 +01 51 12.0 o H21
2011-09-30 02:26:22 C 22 03 17.56 +01 51 13.3 o H21
2011-09-30 02:35:36 C 22 03 17.73 +01 51 14.7 o H21
2011-09-30 02:39:45 C 22 03 17.82 +01 51 15.2 o H21
2011-10-31 03:32:17 C 22 30 52.52 +03 28 20.4 r G96
2011-10-31 03:41:44 C 22 30 52.95 +03 28 21.7 r G96
2011-10-31 03:51:02 C 22 30 53.38 +03 28 23.1 r G96
2011-10-31 04:00:28 C 22 30 53.82 +03 28 24.5 r G96
2014-02-05 07:40:49 C 11 12 56.83 +00 52 47.8 u 807
2014-02-05 07:49:54 C 11 12 56.54 +00 52 47.4 u 807
2014-02-05 08:00:51 C 11 12 56.18 +00 52 46.8 u 807
2014-02-26 11:32:31 C 10 49 58.199 +01 04 29.03 L F51
2014-02-26 11:49:07 C 10 49 57.206 +01 04 30.59 L F51
2014-02-26 12:05:46 C 10 49 56.204 +01 04 32.03 L F51
2014-03-05 08:08:15 C 10 40 00.64 +01 22 41.0 q 703
2014-03-05 08:15:29 C 10 40 00.11 +01 22 42.9 q 703
2014-03-05 08:22:43 C 10 39 59.73 +01 22 43.5 q 703
2014-03-06 08:21:04 C 10 38 30.030 +01 25 49.12 L F51
2014-03-06 08:39:14 C 10 38 28.852 +01 25 51.34 L F51
2014-03-06 08:56:15 C 10 38 27.751 +01 25 53.53 L F51
2014-03-06 09:13:18 C 10 38 26.642 +01 25 55.67 L F51
2014-03-19 21:49:29 C 10 18 15.44 +02 13 10.5 t 204
2014-03-19 22:10:26 C 10 18 14.17 +02 13 13.8 t 204
2014-03-19 22:30:17 C 10 18 12.99 +02 13 17.0 t 204
2014-03-30 04:04:10 C 10 05 02.17 +02 47 59.9 u H21
2014-03-30 04:10:55 C 10 05 01.83 +02 48 00.3 u H21
2014-03-30 04:18:18 C 10 05 01.47 +02 48 01.3 u H21
2014-03-31 04:07:25 C 10 03 55.30 +02 50 59.4 u H21
2014-03-31 04:19:01 C 10 03 54.75 +02 51 00.5 u H21
2014-04-04 06:57:22 C 09 59 45.030 +03 02 09.08 L F51
2014-04-04 07:15:00 C 09 59 44.311 +03 02 10.94 L F51
2014-04-04 07:32:39 C 09 59 43.598 +03 02 12.63 L F51
2014-04-04 07:50:21 C 09 59 42.859 +03 02 14.58 L F51
2017-02-01 09:28:59 C 09 42 09.40 +13 58 39.2 q G96
2017-02-01 09:35:18 C 09 42 09.05 +13 58 39.9 q G96
2017-02-01 09:41:35 C 09 42 08.75 +13 58 40.6 q G96
2017-02-01 09:47:49 C 09 42 08.41 +13 58 41.8 q G96
2017-02-03 12:17:16 C 09 39 31.763 +14 05 39.61 L F51
2017-02-03 13:12:12 C 09 39 28.803 +14 05 47.53 L F51
2017-02-21 08:01:03 C 09 15 47.175 +15 04 16.28 L F51
2017-02-21 08:17:49 C 09 15 46.218 +15 04 18.34 L F51
2017-02-21 08:34:43 C 09 15 45.269 +15 04 20.51 L F51
2017-02-21 08:51:42 C 09 15 44.292 +15 04 22.55 L F51
2020-01-24 06:53:58 C 08 41 29.03 +21 36 22.1 V G96
2020-01-24 07:01:29 C 08 41 28.62 +21 36 22.6 V G96
2020-01-24 07:09:01 C 08 41 28.24 +21 36 24.3 V G96
2020-01-24 07:16:31 C 08 41 27.82 +21 36 25.1 V G96