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
2020-10-16 05:33:44 C 00 35 32.50 +36 26 33.4 V 703
2020-10-16 05:56:40 C 00 35 28.41 +36 26 42.1 V 703
2020-10-21 03:31:08 C 00 14 52.85 +36 49 23.0 V G58
2020-10-21 03:37:23 C 00 14 51.65 +36 49 23.5 V G58
2020-10-21 03:53:29 C 00 14 48.69 +36 49 25.5 V G58
2020-10-22 05:02:27 C 00 10 22.46 +36 50 27.0 V G96
2020-10-22 05:09:59 C 00 10 21.09 +36 50 26.7 V G96
2020-10-22 05:19:26 C 00 10 19.31 +36 50 27.0 V G96
2020-10-22 05:28:54 C 00 10 17.54 +36 50 27.1 V G96
2020-10-22 06:51:50 C 00 10 04.138 +36 50 32.60 U F52
2020-10-22 07:03:47 C 00 10 01.901 +36 50 33.24 U F52
2020-10-22 07:15:44 C 00 09 59.682 +36 50 33.48 U F52
2020-10-22 07:50:57 C 00 09 53.102 +36 50 34.52 U F51
2020-10-22 08:05:28 C 00 09 50.386 +36 50 34.77 U F51
2020-10-22 08:19:06 C 00 09 47.861 +36 50 34.76 U F51
2020-10-24 06:45:12 C 00 01 43.953 +36 48 24.14 U F52
2020-10-24 06:58:07 C 00 01 41.574 +36 48 23.01 U F52
2020-10-24 07:24:01 C 00 01 36.826 +36 48 21.15 U F52
2020-10-25 07:32:26 C 23 57 28.303 +36 45 27.92 U F52
2020-10-25 08:00:45 C 23 57 23.117 +36 45 23.88 U F52
2020-10-25 08:14:55 C 23 57 20.556 +36 45 22.00 U F52
2020-11-03 02:44:45 C 23 24 27.10 +35 37 00.7 V H36
2020-11-03 03:36:44 C 23 24 19.35 +35 36 36.4 V H36
2020-11-03 03:59:35 C 23 24 15.91 +35 36 25.7 V H36
2020-11-04 05:31:50 C 23 20 47.11 +35 24 03.3 V G96
2020-11-04 05:40:06 C 23 20 45.92 +35 23 58.6 V G96
2020-11-04 05:48:19 C 23 20 44.77 +35 23 54.5 V G96
2020-11-04 05:56:35 C 23 20 43.58 +35 23 50.2 V G96
2020-11-05 08:35:20 C 23 17 14.468 +35 10 19.36 U F51
2020-11-05 08:45:37 C 23 17 13.068 +35 10 13.54 U F51
2020-11-05 09:06:08 C 23 17 10.227 +35 10 01.87 U F51
2020-11-13 03:06:45 C 22 56 58.31 +33 22 34.6 V G96
2020-11-13 03:15:01 C 22 56 57.51 +33 22 29.5 V G96
2020-11-13 03:23:13 C 22 56 56.70 +33 22 24.3 V G96
2020-11-13 03:31:26 C 22 56 55.85 +33 22 19.2 V G96
2020-12-20 01:34:31 C 22 34 12.79 +26 37 02.9 o 691
2020-12-20 02:13:12 C 22 34 12.81 +26 36 49.7 o 691
2020-12-20 02:50:16 C 22 34 12.85 +26 36 36.7 o 691
2021-01-05 01:52:58 C 22 36 25.79 +24 10 24.3 o 691
2021-01-05 02:03:52 C 22 36 25.71 +24 10 17.7 o 691
2021-08-05 09:51:34 C 21 30 19.865 -28 06 06.15 U F51
2021-08-05 10:11:40 C 21 30 16.657 -28 06 01.20 U F51
2021-08-05 10:32:00 C 21 30 13.409 -28 05 55.88 U F51
2021-08-05 10:51:22 C 21 30 10.311 -28 05 50.84 U F51
2021-08-10 08:17:58 C 21 12 49.083 -27 27 16.62 U F51
2021-08-10 08:40:10 C 21 12 45.741 -27 27 08.59 U F51
2021-08-10 09:02:36 C 21 12 42.342 -27 27 00.22 U F51
2021-08-10 09:25:02 C 21 12 38.966 -27 26 51.98 U F51
2021-08-11 10:11:41 C 21 09 08.43 -27 16 27.0 V 474
2021-08-11 10:14:43 C 21 09 07.97 -27 16 25.6 V 474