2004 US1

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4511946241 ± 1.12e-07
Semi-major axis (a)1.2843434208 AU ± 9.75e-10
Inclination (i)21.40481858° ± 1.20e-05
Long. of Asc. Node (Ω)223.30819992° ± 3.07e-06
Arg. of Perihelion (ω)74.33799385° ± 1.37e-05
Mean Anomaly (M)217.16343921° ± 4.38e-06
Mean Motion (n)0.6771588023°/day ± 7.71e-10
Perihelion dist (q)0.70485457 AU ± 1.43e-07
Aphelion dist (Q)1.86383227 AU ± 1.43e-07
Orbital Period1.45553197 yr ± 1.66e-09
Physical Parameters
H (abs. magnitude)20.66
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.317″
Uncertainty0
Orbit TypeApollo
MOID0.065244 AU
Observations Used261
Oppositions6
Arc Total2004-2023
First Observation Used2004-10-18
Last Observation Used2023-12-08
Observations (281)
Date Type RA Dec Mag Band Observatory
2020-11-02 00:02:09 C 01 05 52.00 +26 19 21.9 V J27
2020-11-04 06:52:19 C 01 15 17.37 +19 27 50.5 V 703
2020-11-04 07:00:12 C 01 15 18.40 +19 26 58.1 V 703
2020-11-04 07:08:05 C 01 15 19.45 +19 26 05.5 V 703
2020-11-04 07:15:58 C 01 15 20.49 +19 25 13.0 V 703
2020-11-04 09:44:37 C 01 15 42.49 +19 09 06.7 V T08
2020-11-04 09:48:37 C 01 15 42.97 +19 08 40.3 V T08
2020-11-04 09:57:04 C 01 15 44.05 +19 07 44.8 V T08
2020-11-04 10:15:58 C 01 15 46.48 +19 05 40.6 V T08
2020-11-04 20:22:15 C 01 17 13.29 +18 00 33.0 V L18
2020-11-04 20:28:18 C 01 17 14.09 +17 59 54.1 V L18
2020-11-04 20:34:20 C 01 17 14.81 +17 59 17.9 V L18
2020-11-04 20:40:22 C 01 17 15.65 +17 58 39.0 V L18
2020-11-04 20:46:25 C 01 17 16.32 +17 58 02.0 V L18
2020-11-04 20:52:27 C 01 17 17.19 +17 57 23.6 V L18
2020-11-04 21:16:03 C 01 17 21.43 +17 54 57.2 V Z43
2020-11-04 21:35:12 C 01 17 23.84 +17 52 58.0 V Z43
2020-11-04 21:55:54 C 01 17 26.39 +17 50 49.3 V Z43
2020-11-04 22:15:50 C 01 17 28.86 +17 48 45.7 V Z43
2020-11-05 05:00:43 C 01 18 23.31 +17 07 44.7 V G96
2020-11-05 05:08:05 C 01 18 24.16 +17 07 01.0 V G96
2020-11-05 05:15:25 C 01 18 25.01 +17 06 17.0 V G96
2020-11-05 05:22:45 C 01 18 25.86 +17 05 32.9 V G96
2020-11-05 20:37:34 C 01 20 21.74 +15 36 43.5 V K83
2020-11-05 20:40:26 C 01 20 22.05 +15 36 27.3 V K83
2020-11-05 20:43:17 C 01 20 22.38 +15 36 11.2 V K83
2020-11-05 20:56:16 C 01 20 23.85 +15 34 53.7 V A17
2020-11-05 20:57:52 C 01 20 24.54 +15 34 45.7 V Z43
2020-11-05 21:07:35 C 01 20 25.10 +15 33 50.5 V A17
2020-11-05 21:18:52 C 01 20 26.35 +15 32 47.2 V A17
2020-11-05 21:31:47 C 01 20 28.27 +15 31 35.5 V Z43
2020-11-05 21:36:57 C 01 20 28.26 +15 31 05.7 V K87
2020-11-05 21:37:54 C 01 20 28.35 +15 30 59.9 V K87
2020-11-05 21:38:51 C 01 20 28.46 +15 30 55.0 V K87
2020-11-05 21:46:02 C 01 20 29.84 +15 30 16.2 V Z43
2020-11-06 19:43:57 C 01 23 02.12 +13 33 13.5 o K88
2020-11-06 19:45:02 C 01 23 02.24 +13 33 07.7 o K88
2020-11-06 19:46:12 C 01 23 02.35 +13 33 02.0 o K88
2020-11-06 20:18:10 C 01 23 05.90 +13 30 18.2 V K74
2020-11-06 20:20:20 C 01 23 06.11 +13 30 07.4 V K74
2020-11-06 20:23:43 C 01 23 06.47 +13 29 50.3 V K74
2020-11-06 20:24:57 C 01 23 06.59 +13 29 44.2 V K74
2020-11-06 20:53:13 C 01 23 09.44 +13 27 24.7 V 130
2020-11-06 20:55:24 C 01 23 09.65 +13 27 13.3 V 130
2020-11-06 20:57:36 C 01 23 09.86 +13 27 02.3 V 130
2020-11-06 20:59:48 C 01 23 10.08 +13 26 51.2 V 130
2020-11-06 21:54:00 C 01 23 15.36 +13 22 19.8 V 160
2020-11-06 21:56:34 C 01 23 15.60 +13 22 06.9 V 160
2020-11-06 21:59:01 C 01 23 15.85 +13 21 54.5 V 160
2020-11-06 22:05:58 C 01 23 17.00 +13 21 12.5 V Z99