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
2021-10-14 05:13:02 C 01 11 25.69 +06 45 49.2 V 703
2021-10-14 05:20:54 C 01 11 23.72 +06 46 11.0 V 703
2021-10-14 05:28:45 C 01 11 21.85 +06 46 35.3 V 703
2021-10-14 05:36:36 C 01 11 19.90 +06 46 58.7 V 703
2021-10-15 08:05:51 C 01 05 24.38 +08 03 45.2 U I41
2021-10-15 08:07:11 C 01 05 24.08 +08 03 48.9 U I41
2021-10-15 08:07:53 C 01 05 23.93 +08 03 50.8 U I41
2021-10-15 08:09:15 C 01 05 23.63 +08 03 54.7 U I41
2021-10-15 09:27:16 C 01 05 06.27 +08 07 32.7 U I41
2021-10-16 04:30:37 C 01 01 05.68 +08 59 33.9 V 703
2021-10-16 04:38:05 C 01 01 04.10 +08 59 55.5 V 703
2021-10-16 04:45:34 C 01 01 02.55 +09 00 15.5 V 703
2021-10-16 04:53:02 C 01 01 00.87 +09 00 37.8 V 703
2021-10-26 04:22:56 C 00 23 11.86 +16 54 14.7 V G96
2021-10-26 04:30:26 C 00 23 10.98 +16 54 25.6 V G96
2021-10-26 04:37:54 C 00 23 10.06 +16 54 36.3 V G96
2021-10-26 04:45:21 C 00 23 09.22 +16 54 46.8 V G96
2021-10-27 06:22:15 C 00 20 19.579 +17 29 53.67 U F52
2021-10-27 06:37:46 C 00 20 17.849 +17 30 14.23 U F52
2021-10-27 07:08:53 C 00 20 14.390 +17 30 55.77 U F52
2021-11-01 10:31:14 C 00 09 09.869 +19 50 56.57 U F51
2021-11-01 10:48:55 C 00 09 08.507 +19 51 13.52 U F51
2021-11-01 11:06:33 C 00 09 07.142 +19 51 30.36 U F51
2021-11-01 11:24:13 C 00 09 05.789 +19 51 47.12 U F51