2011 SG189

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6027922670 ± 2.97e-08
Semi-major axis (a)2.2404458554 AU ± 5.90e-09
Inclination (i)37.05362306° ± 2.34e-05
Long. of Asc. Node (Ω)20.57176294° ± 4.09e-06
Arg. of Perihelion (ω)276.53002157° ± 1.25e-05
Mean Anomaly (M)102.82909630° ± 4.58e-06
Mean Motion (n)0.2939074515°/day ± 1.16e-09
Perihelion dist (q)0.88992242 AU ± 6.66e-08
Aphelion dist (Q)3.59096929 AU ± 6.72e-08
Orbital Period3.35352601 yr ± 1.33e-08
Physical Parameters
H (abs. magnitude)20.66
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.257″
Uncertainty0
Orbit TypeApollo
MOID0.236258 AU
Observations Used112
Oppositions7
Arc Total2011-2021
First Observation Used2011-04-03
Last Observation Used2021-11-01
Observations (124)
Date Type RA Dec Mag Band Observatory
2021-10-01 10:05:24 C 02 44 26.43 -13 32 12.4 U I41
2021-10-01 11:04:10 C 02 44 04.49 -13 27 46.2 U I41
2021-10-01 11:04:50 C 02 44 04.25 -13 27 43.2 U I41
2021-10-02 09:10:11 C 02 36 06.97 -11 47 37.3 V T05
2021-10-02 09:26:43 C 02 36 00.93 -11 46 22.9 V T05
2021-10-02 09:38:38 C 02 35 56.56 -11 45 28.9 V T05
2021-10-02 10:14:15 C 02 35 43.53 -11 42 48.2 V T05
2021-10-04 11:05:26 C 02 18 37.315 -08 03 17.24 U F52
2021-10-04 11:40:31 C 02 18 25.044 -08 00 41.66 U F52
2021-10-04 11:58:00 C 02 18 18.928 -07 59 23.97 U F52
2021-10-04 13:34:44 C 02 17 45.174 -07 52 14.43 U F51
2021-10-04 13:51:27 C 02 17 39.360 -07 51 00.18 U F51
2021-10-04 13:58:53 C 02 17 36.781 -07 50 27.24 U F51
2021-10-06 10:14:24 C 02 03 00.65 -04 37 57.5 V T05
2021-10-06 10:52:00 C 02 02 48.26 -04 35 17.9 V T05
2021-10-06 10:57:18 C 02 02 46.51 -04 34 55.4 V T05
2021-10-06 11:04:34 C 02 02 44.13 -04 34 24.2 V T05
2021-10-07 07:40:49 C 01 56 13.53 -03 08 03.4 V 703
2021-10-07 07:48:24 C 01 56 11.15 -03 07 32.5 V 703
2021-10-07 08:02:25 C 01 56 06.72 -03 06 34.1 V 703
2021-10-07 08:10:01 C 01 56 04.34 -03 06 02.4 V 703
2021-10-07 10:21:41 C 01 55 23.85 -02 56 53.1 V T05
2021-10-07 10:48:46 C 01 55 15.27 -02 55 01.8 V T05
2021-10-07 10:54:02 C 01 55 13.61 -02 54 40.4 V T05
2021-10-07 10:59:59 C 01 55 11.69 -02 54 15.0 V T05
2021-10-07 21:04:02 C 01 52 06.61 -02 13 15.1 V L18
2021-10-07 21:12:08 C 01 52 04.07 -02 12 42.9 V L18
2021-10-07 21:20:14 C 01 52 01.58 -02 12 09.4 V L18
2021-10-08 19:39:53 C 01 45 20.96 -00 43 04.1 V L18
2021-10-08 19:46:29 C 01 45 19.00 -00 42 37.8 V L18
2021-10-08 19:53:23 C 01 45 16.85 -00 42 10.8 V L18
2021-10-09 01:09:57 C 01 43 42.94 -00 21 36.8 V K87
2021-10-09 01:17:43 C 01 43 40.64 -00 21 06.5 V K87
2021-10-09 01:25:28 C 01 43 38.29 -00 20 36.0 V K87
2021-10-10 01:14:20 C 01 36 50.80 +01 09 54.5 V K87
2021-10-10 01:25:32 C 01 36 47.58 +01 10 35.9 V K87
2021-10-10 07:05:12 C 01 35 14.01 +01 31 38.9 V 703
2021-10-10 07:12:49 C 01 35 11.80 +01 32 07.2 V 703
2021-10-10 07:20:26 C 01 35 09.66 +01 32 34.8 V 703
2021-10-10 08:18:29 C 01 34 53.26 +01 36 08.3 V G96
2021-10-10 08:25:59 C 01 34 51.14 +01 36 35.9 V G96
2021-10-10 08:33:27 C 01 34 49.01 +01 37 03.3 V G96
2021-10-10 08:40:55 C 01 34 46.90 +01 37 30.7 V G96
2021-10-11 11:01:57 C 01 27 41.69 +03 11 44.1 V T05
2021-10-11 11:06:36 C 01 27 40.45 +03 12 00.0 V T05
2021-10-11 11:17:52 C 01 27 37.42 +03 12 39.4 V T05
2021-10-11 12:07:44 C 01 27 23.95 +03 15 32.4 V T05
2021-10-13 05:58:23 C 01 16 53.64 +05 34 11.5 V 703
2021-10-13 06:13:33 C 01 16 50.03 +05 34 59.8 V 703
2021-10-13 06:21:08 C 01 16 48.11 +05 35 24.9 V 703