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
2004-10-18 11:06:35 C 06 35 42.152 +66 19 17.18 – n 645
2004-10-18 11:07:47 C 06 35 40.721 +66 19 12.32 – n 645
2004-10-18 11:10:10 C 06 35 37.193 +66 19 00.26 – n 645
2004-10-18 11:11:22 C 06 35 35.892 +66 18 55.94 – n 645
2004-10-23 07:40:18 C 04 44 31.65 +53 11 55.2 18.7 c 704
2004-10-23 07:57:23 C 04 44 20.24 +53 09 37.9 19.5 c 704
2004-10-23 08:14:29 C 04 44 08.72 +53 07 18.6 19.2 c 704
2004-10-23 08:31:32 C 04 43 57.21 +53 05 00.5 18.7 c 704
2004-10-23 08:48:34 C 04 43 45.79 +53 02 42.2 19.2 c 704
2004-10-24 08:52:22 C 04 29 18.77 +49 42 47.9 18.0 c 704
2004-10-24 09:09:31 C 04 29 08.81 +49 40 24.1 18.6 c 704
2004-10-24 09:26:38 C 04 28 58.87 +49 38 00.7 18.9 c 704
2004-10-24 09:43:46 C 04 28 48.92 +49 35 36.1 18.6 c 704
2004-10-24 10:00:55 C 04 28 39.00 +49 33 11.7 18.7 c 704
2004-10-24 22:13:45 C 04 22 13.35 +47 49 38.3 – r J95
2004-10-24 22:36:36 C 04 22 01.45 +47 46 27.3 – r J95
2004-10-24 22:40:55 C 04 21 59.28 +47 45 50.6 – r J95
2004-10-24 22:44:44 C 04 21 57.19 +47 45 18.9 – r J95
2004-10-25 02:53:41 C 04 19 53.26 +47 10 07.8 – r 649
2004-10-25 02:55:26 C 04 19 52.43 +47 09 54.1 – r 649
2004-10-25 02:57:12 C 04 19 51.44 +47 09 37.6 – r 649
2004-10-25 03:02:27 C 04 19 48.89 +47 08 55.0 – r 649
2004-10-25 07:29:12 C 04 17 34.86 +46 31 53.4 18.0 c 704
2004-10-25 07:37:45 C 04 17 30.48 +46 30 42.4 18.3 c 704
2004-10-25 07:46:37 C 04 17 26.03 +46 29 27.6 18.2 c 704
2004-10-25 07:55:05 C 04 17 21.71 +46 28 15.5 18.2 c 704
2004-10-25 08:03:57 C 04 17 17.22 +46 27 01.7 18.5 c 704
2004-10-25 08:12:25 C 04 17 12.94 +46 25 50.6 18.5 c 704
2004-10-25 08:29:46 C 04 17 04.08 +46 23 24.0 18.4 c 704
2004-10-25 08:38:39 C 04 16 59.69 +46 22 09.4 18.5 c 704
2004-10-25 08:47:07 C 04 16 55.35 +46 20 57.9 17.7 c 704
2004-10-25 09:21:23 C 04 16 37.25 +46 16 00.0 – r 734
2004-10-25 09:22:30 C 04 16 36.78 +46 15 52.3 – r 734
2004-10-25 09:23:36 C 04 16 35.98 +46 15 41.0 – r 734
2004-10-25 09:24:42 C 04 16 35.46 +46 15 30.1 – r 734
2004-10-25 09:25:49 C 04 16 35.14 +46 15 25.1 – r 734
2004-10-25 23:05:02 C 04 10 21.02 +44 19 40.1 – r J95
2004-10-25 23:12:53 C 04 10 17.50 +44 18 34.6 – r J95
2004-10-25 23:20:30 C 04 10 14.03 +44 17 31.2 – r J95
2004-10-26 06:08:05 C 04 07 18.31 +43 20 37.6 – c 854
2004-10-26 06:09:05 C 04 07 17.90 +43 20 28.4 – c 854
2004-10-26 06:13:03 C 04 07 16.12 +43 19 55.7 – c 854
2004-10-26 06:14:02 C 04 07 15.77 +43 19 47.9 – c 854
2004-10-26 09:11:21 C 04 05 56.85 +42 55 09.8 – o H06
2004-10-26 09:14:44 C 04 05 55.34 +42 54 40.5 – o H06
2004-10-26 21:19:33 C 04 01 06.18 +41 13 11.5 – r J95
2004-10-26 21:32:31 C 04 01 01.04 +41 11 25.0 – r J95
2004-10-26 21:47:35 C 04 00 55.05 +41 09 21.5 – r J95
2004-10-30 05:00:21 C 03 35 39.32 +30 46 56.4 – r 649
2004-10-30 05:02:24 C 03 35 38.75 +30 46 41.1 – r 649