2008 US4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6325724850 ± 4.75e-08
Semi-major axis (a)2.3364549713 AU ± 4.93e-08
Inclination (i)13.17619833° ± 1.36e-05
Long. of Asc. Node (Ω)31.13986068° ± 6.84e-06
Arg. of Perihelion (ω)72.83314545° ± 1.76e-05
Mean Anomaly (M)267.79748547° ± 6.00e-05
Mean Motion (n)0.2759790738°/day ± 8.73e-09
Perihelion dist (q)0.85847784 AU ± 1.12e-07
Aphelion dist (Q)3.81443210 AU ± 1.37e-07
Orbital Period3.57138050 yr ± 1.13e-07
Physical Parameters
H (abs. magnitude)20.96
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.359″
Uncertainty0
Orbit TypeApollo
MOID0.079672 AU
Observations Used206
Oppositions5
Arc Total2008-2015
First Observation Used2008-10-06
Last Observation Used2015-09-10
Observations (235)
Date Type RA Dec Mag Band Observatory
2008-10-31 06:59:40 C 01 35 42.20 +23 05 22.1 r H45
2008-10-31 07:01:45 C 01 35 41.72 +23 05 33.8 r H45
2008-10-31 07:03:26 C 01 35 41.37 +23 05 43.3 r H45
2008-10-31 07:05:51 C 01 35 40.83 +23 05 56.7 r H45
2008-10-31 07:07:45 C 01 35 40.38 +23 06 07.6 r H45
2008-10-31 07:09:12 C 01 35 40.06 +23 06 15.6 r H45
2008-10-31 07:10:27 C 01 35 39.75 +23 06 22.7 r H45
2008-10-31 10:12:11 C 01 34 59.70 +23 23 35.3 r 703
2008-10-31 10:20:09 C 01 34 57.90 +23 24 20.6 r 703
2008-10-31 10:28:03 C 01 34 56.17 +23 25 05.4 r 703
2008-10-31 10:35:55 C 01 34 54.37 +23 25 49.9 r 703
2008-11-01 02:00:50 C 01 31 33.25 +24 57 48.5 r H53
2008-11-01 02:05:40 C 01 31 32.07 +24 58 18.3 r H53
2008-11-01 02:08:38 C 01 31 31.34 +24 58 37.2 r H53
2008-11-01 02:14:24 C 01 31 30.00 +24 59 12.9 r H53
2008-11-01 02:19:24 C 01 31 28.61 +24 59 43.2 r H53
2008-11-01 02:21:54 C 01 31 27.85 +24 59 58.8 r H53
2008-11-01 02:22:33 C 01 31 28.44 +25 00 07.0 i H28
2008-11-01 02:33:42 C 01 31 25.66 +25 01 16.0 i H28
2008-11-01 02:56:04 C 01 31 19.97 +25 03 37.4 i H28
2008-11-01 03:07:13 C 01 31 17.23 +25 04 47.5 i H28
2008-11-01 03:18:23 C 01 31 14.39 +25 05 56.0 i H28
2008-11-01 03:29:32 C 01 31 11.52 +25 07 06.6 i H28
2008-11-01 05:55:03 C 01 30 35.02 +25 22 18.2 r G96
2008-11-01 06:12:24 C 01 30 30.49 +25 24 07.2 r G96
2008-11-01 06:29:45 C 01 30 25.95 +25 25 56.1 r G96
2008-11-01 06:47:07 C 01 30 21.38 +25 27 45.2 r G96
2008-11-01 22:14:55 C 01 26 25.81 +27 08 17.5 r A81
2008-11-01 22:22:11 C 01 26 23.74 +27 09 06.4 r A81
2008-11-01 22:34:34 C 01 26 20.19 +27 10 29.6 r A81
2008-11-02 02:03:14 C 01 25 27.44 +27 34 06.7 r H53
2008-11-02 02:06:12 C 01 25 26.62 +27 34 28.7 r H53
2008-11-02 02:08:34 C 01 25 25.88 +27 34 45.2 r H53
2008-11-02 02:10:45 C 01 25 25.28 +27 34 59.2 r H53
2008-11-02 02:22:01 C 01 25 21.96 +27 36 17.5 r H53
2008-11-02 02:24:17 C 01 25 21.30 +27 36 32.8 r H53
2008-11-02 07:06:24 C 01 23 57.55 +28 09 11.2 r H45
2008-11-02 07:07:41 C 01 23 57.15 +28 09 20.1 r H45
2008-11-02 07:08:48 C 01 23 56.84 +28 09 28.0 r H45
2008-11-02 07:14:01 C 01 23 55.25 +28 10 03.6 r H45
2008-11-02 07:15:07 C 01 23 54.92 +28 10 11.5 r H45
2008-11-02 07:17:15 C 01 23 54.27 +28 10 25.9 r H45
2008-11-02 07:18:06 C 01 23 54.00 +28 10 32.1 r H45
2008-11-03 05:20:00 C 01 17 12.49 +30 52 19.3 r H53
2008-11-03 05:22:17 C 01 17 11.71 +30 52 35.9 r H53
2008-11-03 05:24:14 C 01 17 11.02 +30 52 51.6 r H53
2008-11-03 05:27:48 C 01 17 09.76 +30 53 18.6 r H53
2008-11-03 05:29:26 C 01 17 09.23 +30 53 31.7 r H53
2008-11-03 05:31:16 C 01 17 08.56 +30 53 45.1 r H53
2008-11-04 05:57:33 C 01 08 20.21 +34 11 25.2 r H45