2012 US9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2468718507 ± 3.36e-08
Semi-major axis (a)1.0929196104 AU ± 1.29e-09
Inclination (i)8.27641311° ± 3.13e-06
Long. of Asc. Node (Ω)334.65221319° ± 1.84e-05
Arg. of Perihelion (ω)182.97233823° ± 2.22e-05
Mean Anomaly (M)55.06633323° ± 1.89e-05
Mean Motion (n)0.8626407072°/day ± 1.53e-09
Perihelion dist (q)0.82310852 AU ± 3.67e-08
Aphelion dist (Q)1.36273070 AU ± 3.68e-08
Orbital Period1.14256871 yr ± 2.02e-09
Physical Parameters
H (abs. magnitude)21.85
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.218″
Uncertainty0
Orbit TypeApollo
MOID0.133513 AU
Observations Used149
Oppositions1
Arc Total2012-2021
First Observation Used2012-10-16
Last Observation Used2021-08-14
Observations (155)
Date Type RA Dec Mag Band Observatory
2012-10-16 05:16:39 C 00 23 20.76 +34 33 33.2 r G96
2012-10-16 05:26:20 C 00 23 18.99 +34 33 34.9 r G96
2012-10-16 05:36:09 C 00 23 17.26 +34 33 36.9 r G96
2012-10-16 05:46:03 C 00 23 15.46 +34 33 38.9 r G96
2012-10-16 05:55:59 C 00 23 13.66 +34 33 40.7 r G96
2012-10-16 07:36:00 C 00 22 55.84 +34 33 58.0 r G96
2012-10-16 07:37:41 C 00 22 55.48 +34 33 58.4 r G96
2012-10-16 07:39:21 C 00 22 55.23 +34 33 58.3 r G96
2012-10-16 07:41:02 C 00 22 54.87 +34 33 58.6 r G96
2012-10-16 10:58:54 C 00 22 20.12 +34 34 25.3 o 291
2012-10-16 10:59:47 C 00 22 19.97 +34 34 25.4 o 291
2012-10-16 11:00:38 C 00 22 19.75 +34 34 25.4 o 291
2012-10-17 02:31:16 C 00 19 45.42 +34 36 58.0 o H01
2012-10-17 02:43:45 C 00 19 43.21 +34 37 00.2 o H01
2012-10-17 02:44:47 C 00 19 43.17 +34 37 00.2 r G96
2012-10-17 02:45:35 C 00 19 43.03 +34 37 00.5 r G96
2012-10-17 02:46:25 C 00 19 42.88 +34 37 00.7 r G96
2012-10-17 02:47:11 C 00 19 42.74 +34 37 00.4 r G96
2012-10-17 02:48:00 C 00 19 42.60 +34 37 00.7 r G96
2012-10-17 02:57:19 C 00 19 40.81 +34 37 02.9 o H01
2012-10-17 03:04:47 C 00 19 39.49 +34 37 04.3 o H01
2012-10-18 03:21:55 C 00 15 31.46 +34 39 54.2 r G96
2012-10-18 03:22:43 C 00 15 31.32 +34 39 54.7 r G96
2012-10-18 03:23:30 C 00 15 31.24 +34 39 55.3 r G96
2012-10-18 03:24:18 C 00 15 31.06 +34 39 55.2 r G96
2012-10-18 04:49:08 C 00 15 15.20 +34 40 00.9 u H36
2012-10-18 05:03:42 C 00 15 12.72 +34 40 02.3 u H36
2012-10-18 06:16:57 C 00 15 00.51 +34 40 10.0 t G58
2012-10-18 06:34:01 C 00 14 57.42 +34 40 11.5 t G58
2012-10-18 06:42:02 C 00 14 56.02 +34 40 11.9 t G58
2012-10-21 03:10:59 C 00 03 20.69 +34 41 08.4 u H21
2012-10-21 03:17:26 C 00 03 19.57 +34 41 07.9 u H21
2012-10-21 03:23:12 C 00 03 18.53 +34 41 07.9 u H21
2012-10-23 19:57:44 C 23 52 37.49 +34 33 30.4 t 204
2012-10-23 20:31:07 C 23 52 31.84 +34 33 24.3 t 204
2012-10-25 03:37:26 C 23 47 31.80 +34 27 09.0 u 448
2012-10-26 03:56:51 C 23 43 41.47 +34 21 01.8 u 448
2012-10-26 04:45:17 C 23 43 33.38 +34 20 48.5 u 448
2012-10-26 05:40:29 C 23 43 24.24 +34 20 31.7 u 448
2012-10-27 03:01:23 C 23 40 07.20 +34 14 16.4 u H21
2012-10-27 03:11:27 C 23 40 05.61 +34 14 13.5 u H21
2012-10-27 03:21:47 C 23 40 03.92 +34 14 10.2 u H21
2012-11-01 00:51:09 C 23 23 14.41 +33 28 46.5 u H21
2012-11-01 01:04:24 C 23 23 12.52 +33 28 41.3 u H21
2012-11-01 01:18:02 C 23 23 10.57 +33 28 35.6 u H21
2012-11-02 23:53:47 C 23 17 11.62 +33 06 20.7 u H21
2012-11-03 00:00:15 C 23 17 10.74 +33 06 18.2 u H21
2012-11-08 03:10:37 C 23 03 24.01 +32 00 33.4 r G96
2012-11-08 03:18:30 C 23 03 23.11 +32 00 29.0 r G96
2012-11-08 03:26:16 C 23 03 22.17 +32 00 25.4 r G96