2023 US9

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3266481195 ± 9.94e-05
Semi-major axis (a)1.2851927718 AU ± 1.40e-04
Inclination (i)5.95032284° ± 1.31e-03
Long. of Asc. Node (Ω)1.31575419° ± 1.54e-03
Arg. of Perihelion (ω)313.69547819° ± 9.02e-04
Mean Anomaly (M)196.07633307° ± 9.21e-02
Mean Motion (n)0.6764876378°/day ± 1.10e-04
Perihelion dist (q)0.86538697 AU ± 1.59e-04
Aphelion dist (Q)1.70499857 AU ± 2.25e-04
Orbital Period1.45697605 yr ± 2.37e-04
Physical Parameters
H (abs. magnitude)23.39
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.213″
Uncertainty2
Orbit TypeApollo
MOID0.027805 AU
Observations Used33
Oppositions1
Arc Total2023-2023
First Observation Used2023-10-25
Last Observation Used2023-11-15
Observations (37)
Date Type RA Dec Mag Band Observatory
2023-10-25 10:18:02 C 02 02 08.703 +50 48 15.43 X F51
2023-10-25 10:33:15 C 02 02 06.268 +50 47 36.10 X F51
2023-10-25 10:50:03 C 02 02 03.584 +50 46 51.99 X F51
2023-10-25 11:06:40 C 02 02 00.948 +50 46 08.25 X F51
2023-10-25 23:49:04 C 02 00 33.670 +50 13 36.34 V Z84
2023-10-26 00:22:09 C 02 00 28.917 +50 12 13.80 V Z84
2023-10-26 00:53:11 C 02 00 24.447 +50 10 55.39 V Z84
2023-10-26 20:05:01 C 01 58 27.946 +49 24 05.08 V J95
2023-10-26 20:15:53 C 01 58 26.724 +49 23 41.28 V J95
2023-10-26 20:30:41 C 01 58 25.044 +49 23 08.74 V J95
2023-10-27 06:12:03 C 01 57 26.370 +49 01 20.85 V 654
2023-10-27 06:17:50 C 01 57 25.673 +49 01 08.04 V 654
2023-10-27 07:07:26 C 01 57 19.744 +48 58 58.65 L 658
2023-10-27 07:14:04 C 01 57 19.002 +48 58 43.88 L 658
2023-10-27 07:20:42 C 01 57 18.249 +48 58 28.46 L 658
2023-10-27 07:27:19 C 01 57 17.485 +48 58 13.32 L 658
2023-10-27 07:35:36 C 01 57 16.542 +48 57 54.65 L 658
2023-10-27 18:04:30 B 01 56 23.347 +48 33 58.32 X K74
2023-10-27 18:46:12 B 01 56 19.207 +48 32 33.11 X K74
2023-10-27 19:22:20 B 01 56 15.612 +48 31 19.02 X K74
2023-10-27 22:24:55 C 01 55 56.25 +48 24 59.1 V 204
2023-10-27 22:42:00 C 01 55 54.36 +48 24 22.1 V 204
2023-10-27 22:58:52 C 01 55 52.47 +48 23 45.7 V 204
2023-11-01 07:52:15 C 01 48 49.691 +45 02 42.97 V G96
2023-11-01 07:59:47 C 01 48 49.165 +45 02 29.94 V G96
2023-11-01 08:07:17 C 01 48 48.618 +45 02 16.51 V G96
2023-11-10 03:39:50 C 01 42 47.588 +40 05 38.58 V I52
2023-11-10 03:44:42 C 01 42 47.495 +40 05 32.82 V I52
2023-11-10 04:06:33 C 01 42 46.994 +40 05 08.70 V I52
2023-11-10 21:11:19 C 01 42 35.15 +39 45 15.8 X 033
2023-11-10 21:13:58 C 01 42 35.07 +39 45 12.9 X 033
2023-11-10 21:16:38 C 01 42 35.00 +39 45 09.4 X 033
2023-11-10 21:19:28 C 01 42 34.94 +39 45 06.1 X 033
2023-11-10 21:22:22 C 01 42 34.89 +39 45 03.6 X 033
2023-11-15 07:21:10 C 01 42 15.91 +37 53 44.8 V G96
2023-11-15 07:28:45 C 01 42 15.88 +37 53 36.1 V G96
2023-11-15 07:36:21 C 01 42 15.78 +37 53 28.8 V G96