IAA RAS IAA Minor Planet Database

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
2020-10-24 16:50:50 C 23 18 51.01 +64 04 29.7 – V K61
2020-10-24 16:52:33 C 23 18 53.36 +64 04 10.3 – V K61
2020-10-24 16:54:08 C 23 18 55.46 +64 03 51.8 – V K61
2020-10-24 17:39:10 C 23 19 55.50 +63 55 07.6 – V K74
2020-10-24 17:41:52 C 23 19 58.98 +63 54 36.3 – V K74
2020-10-24 17:44:40 C 23 20 02.76 +63 54 03.3 – V K74
2020-10-24 17:47:39 C 23 20 06.65 +63 53 29.1 – V K74
2020-10-24 18:14:44 C 23 20 43.22 +63 48 18.3 – V C95
2020-10-24 18:19:26 C 23 20 49.37 +63 47 23.4 – V C95
2020-10-24 18:24:06 C 23 20 55.52 +63 46 29.1 – V C95
2020-10-24 19:29:53 C 23 22 18.94 +63 33 30.6 – V K87
2020-10-24 19:32:23 C 23 22 22.77 +63 33 08.4 – V C77
2020-10-24 19:34:06 C 23 22 24.28 +63 32 41.1 – V K87
2020-10-24 19:37:19 C 23 22 29.08 +63 32 10.4 – V C77
2020-10-24 19:38:17 C 23 22 29.67 +63 31 51.3 – V K87
2020-10-24 19:42:56 C 23 22 36.08 +63 31 03.8 – V C77
2020-10-25 21:33:46 C 23 51 10.01 +58 11 49.5 – V G34
2020-10-25 21:36:38 C 23 51 12.42 +58 11 12.4 – V G34
2020-10-25 21:39:29 C 23 51 15.06 +58 10 36.3 – V G34
2020-10-25 22:16:06 C 23 51 48.02 +58 02 49.3 – V G34
2020-10-25 22:19:48 C 23 51 51.36 +58 02 01.2 – V G34
2020-10-26 08:57:42 C 00 01 04.92 +55 47 07.3 – V T05
2020-10-26 09:02:59 C 00 01 08.96 +55 45 59.5 – V T05
2020-10-26 09:10:55 C 00 01 15.05 +55 44 17.8 – V T05
2020-10-26 20:04:19 C 00 09 34.59 +53 24 02.6 – V L04
2020-10-26 20:14:25 C 00 09 41.47 +53 21 53.5 – V L04
2020-10-26 20:20:35 C 00 09 51.31 +53 20 48.0 – V G40
2020-10-26 20:24:40 C 00 09 48.49 +53 19 41.8 – V L04
2020-10-26 20:25:11 C 00 09 54.40 +53 19 49.3 – V G40
2020-10-26 20:29:56 C 00 09 57.65 +53 18 49.7 – V G40
2020-10-26 20:40:12 C 00 10 04.57 +53 16 39.4 – V G40
2020-10-27 01:27:27 C 00 13 13.13 +52 14 35.0 – V Z99
2020-10-27 01:30:01 C 00 13 14.83 +52 14 01.9 – V Z99
2020-10-27 01:32:36 C 00 13 16.57 +52 13 29.0 – V Z99
2020-10-27 01:34:56 C 00 13 18.08 +52 12 58.2 – V Z99
2020-10-27 01:37:41 C 00 13 19.92 +52 12 23.1 – V Z99
2020-10-27 19:39:33 C 00 24 24.79 +48 23 50.7 – V K74
2020-10-27 19:41:33 C 00 24 25.83 +48 23 26.0 – V K74
2020-10-27 19:44:18 C 00 24 27.28 +48 22 51.6 – V K74
2020-10-27 19:46:31 C 00 24 28.44 +48 22 24.1 – V K74
2020-10-27 19:49:16 C 00 24 29.90 +48 21 49.8 – V K74
2020-10-28 04:45:50 C 00 29 11.51 +46 30 47.1 – V 703
2020-10-28 04:53:34 C 00 29 15.15 +46 29 11.9 – V 703
2020-10-28 05:01:17 C 00 29 18.71 +46 27 37.1 – V 703
2020-10-28 05:09:03 C 00 29 22.47 +46 26 01.2 – V 703
2020-10-31 00:05:47 C 00 54 28.04 +33 45 24.0 – V J27
2020-10-31 00:10:50 C 00 54 29.36 +33 44 32.4 – V J27
2020-10-31 00:15:39 C 00 54 30.63 +33 43 43.3 – V J27
2020-11-01 23:58:20 C 01 05 51.29 +26 19 54.2 – V J27
2020-11-01 23:59:58 C 01 05 51.61 +26 19 40.4 – V J27