2011 SM120

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4061488530 ± 2.29e-05
Semi-major axis (a)2.1864375659 AU ± 1.16e-04
Inclination (i)4.50860091° ± 2.10e-04
Long. of Asc. Node (Ω)189.89667180° ± 7.59e-05
Arg. of Perihelion (ω)167.77309476° ± 3.37e-04
Mean Anomaly (M)137.26167627° ± 1.26e-01
Mean Motion (n)0.3048643593°/day ± 2.43e-05
Perihelion dist (q)1.29841846 AU ± 8.53e-05
Aphelion dist (Q)3.07445668 AU ± 1.71e-04
Orbital Period3.23299938 yr ± 2.58e-04
Physical Parameters
H (abs. magnitude)22.40
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.198″
Uncertainty3
Orbit TypeAmor
MOID0.292961 AU
Observations Used34
Oppositions1
Arc Total2011-2011
First Observation Used2011-08-20
Last Observation Used2011-11-01
Observations (35)
Date Type RA Dec Mag Band Observatory
2011-08-20 12:53:48 C 23 37 09.07 +08 04 04.0 V F51
2011-08-20 13:10:37 C 23 37 09.96 +08 04 05.9 V F51
2011-09-26 09:06:04 C 00 19 17.74 +04 30 00.7 r G96
2011-09-26 09:15:25 C 00 19 18.02 +04 29 55.4 r G96
2011-09-26 09:24:46 C 00 19 18.32 +04 29 51.2 r G96
2011-09-26 09:34:03 C 00 19 18.57 +04 29 46.4 r G96
2011-09-26 09:36:31 C 00 19 18.66 +04 29 44.8 r G96
2011-09-26 09:48:50 C 00 19 19.02 +04 29 39.3 r G96
2011-09-26 10:00:59 C 00 19 19.41 +04 29 32.7 r G96
2011-09-26 10:13:15 C 00 19 19.77 +04 29 26.3 r G96
2011-09-26 10:31:06 C 00 19 20.33 +04 29 17.4 r G96
2011-09-26 10:38:54 C 00 19 20.61 +04 29 13.5 r G96
2011-09-26 10:46:48 C 00 19 20.84 +04 29 09.3 r G96
2011-09-26 10:54:42 C 00 19 21.10 +04 29 05.4 r G96
2011-09-27 05:22:27 C 00 20 02.34 +04 20 18.6 o 807
2011-09-27 05:33:01 C 00 20 02.64 +04 20 13.4 o 807
2011-09-27 05:42:44 C 00 20 02.91 +04 20 08.4 o 807
2011-09-28 07:05:26 C 00 20 58.30 +04 06 50.3 o 291
2011-09-28 07:11:09 C 00 20 58.45 +04 06 47.3 o 291
2011-09-28 07:17:01 C 00 20 58.61 +04 06 44.2 o 291
2011-09-28 08:31:37 C 00 21 00.65 +04 06 05.5 o H01
2011-09-28 08:44:30 C 00 21 01.03 +04 05 59.0 o H01
2011-09-28 09:01:39 C 00 21 01.55 +04 05 50.1 o H01
2011-09-28 09:23:49 C 00 21 02.19 +04 05 39.1 o H01
2011-10-03 07:35:10 C 00 25 13.08 +03 06 31.2 r G96
2011-10-03 07:40:12 C 00 25 13.18 +03 06 28.9 r G96
2011-10-03 07:45:14 C 00 25 13.33 +03 06 26.1 r G96
2011-10-03 07:50:17 C 00 25 13.47 +03 06 23.5 r G96
2011-10-22 05:29:57 C 00 41 28.93 +00 12 35.9 r G96
2011-10-22 05:40:54 C 00 41 29.22 +00 12 32.6 r G96
2011-10-22 05:51:50 C 00 41 29.58 +00 12 30.1 r G96
2011-10-22 06:02:38 C 00 41 29.94 +00 12 27.2 r G96
2011-11-01 03:52:01 C 00 51 08.10 -00 22 00.9 o H21
2011-11-01 04:09:49 C 00 51 08.74 -00 22 01.8 o H21
2011-11-01 04:28:24 C 00 51 09.49 -00 22 03.0 o H21