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
2004-10-30 05:04:26 C 03 35 38.18 +30 46 26.3 r 649
2004-10-30 05:06:31 C 03 35 37.66 +30 46 10.5 r 649
2004-10-31 12:30:04 C 03 28 01.81 +27 06 06.6 c 474
2004-10-31 12:31:14 C 03 28 01.59 +27 05 58.5 c 474
2004-10-31 12:32:24 C 03 28 01.25 +27 05 50.8 c 474
2004-11-02 09:40:16 C 03 18 48.12 +22 16 20.9 o 699
2004-11-02 10:05:09 C 03 18 43.21 +22 13 50.7 o 699
2004-11-02 10:30:05 C 03 18 38.36 +22 11 19.7 o 699
2004-11-02 10:54:59 C 03 18 33.53 +22 08 49.8 o 699
2004-11-02 23:22:19 C 03 16 22.83 +20 55 40.3 r 170
2004-11-02 23:23:32 C 03 16 22.61 +20 55 33.5 r 170
2004-11-02 23:24:45 C 03 16 22.39 +20 55 26.6 r 170
2004-11-04 21:07:06 C 03 09 06.78 +16 49 17.9 c 104
2004-11-04 21:10:18 C 03 09 06.38 +16 49 03.5 c 104
2004-11-04 21:14:59 C 03 09 05.58 +16 48 38.4 c 104
2004-11-04 21:22:46 C 03 09 04.34 +16 47 58.8 c 104
2004-11-04 21:31:41 C 03 09 03.07 +16 47 16.8 c 104
2004-11-06 06:55:53 C 03 04 29.86 +14 08 43.7 c 670
2004-11-06 08:24:11 C 03 04 17.62 +14 02 07.3 c 670
2004-11-06 09:49:37 C 03 04 05.84 +13 55 44.7 c 670
2004-11-07 06:00:24 C 03 01 40.45 +12 28 42.7 18.6 c 704
2004-11-07 06:17:40 C 03 01 38.23 +12 27 30.3 18.2 c 704
2004-11-07 06:52:13 C 03 01 33.83 +12 25 06.3 18.1 c 704
2004-11-07 07:09:29 C 03 01 31.61 +12 23 54.6 18.1 c 704
2004-11-09 07:02:22 C 02 56 23.42 +09 19 43.3 r H41
2004-11-09 07:05:47 C 02 56 23.05 +09 19 30.8 r H41
2004-11-09 07:07:56 C 02 56 22.81 +09 19 23.2 r H41
2004-11-09 07:10:01 C 02 56 22.60 +09 19 15.9 r H41
2004-11-09 07:12:10 C 02 56 22.42 +09 19 09.1 r H41
2004-11-15 20:15:10 C 02 44 35.71 +02 06 28.3 c 246
2004-11-15 20:16:34 C 02 44 35.62 +02 06 24.8 c 246
2004-11-15 20:19:45 C 02 44 35.45 +02 06 18.6 c 246
2004-11-15 20:20:43 C 02 44 35.39 +02 06 16.5 c 246
2004-11-15 20:21:57 C 02 44 35.31 +02 06 14.6 c 246
2004-11-15 20:23:17 C 02 44 35.20 +02 06 10.9 c 246
2010-04-18 23:50:59 S 02 52 40.709 -78 56 21.59 L C51
2010-04-19 01:26:09 S 02 50 11.028 -78 38 44.41 L C51
2020-10-18 18:05:00 S 17 24 18.516 +71 55 46.81 L C51
2020-10-24 08:43:29 C 23 06 58.11 +65 38 50.6 V T08
2020-10-24 08:47:30 C 23 07 04.00 +65 38 05.1 V T08
2020-10-24 08:54:50 C 23 07 14.73 +65 36 41.5 V T08
2020-10-24 09:14:52 C 23 07 44.02 +65 32 52.2 V T08
2020-10-24 10:04:00 C 23 08 55.56 +65 23 26.9 V T08
2020-10-24 10:04:40 C 23 08 56.48 +65 23 19.2 V T08
2020-10-24 10:05:20 C 23 08 57.41 +65 23 11.9 V T08
2020-10-24 10:06:40 C 23 08 59.32 +65 22 56.4 V T08
2020-10-24 10:43:36 C 23 09 52.99 +65 15 47.2 V T05
2020-10-24 10:44:15 C 23 09 53.97 +65 15 39.2 V T05
2020-10-24 10:46:14 C 23 09 56.75 +65 15 16.7 V T05
2020-10-24 16:49:32 C 23 18 49.37 +64 04 44.5 V K61