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
2008-11-04 05:59:52 C 01 08 19.20 +34 11 45.9 r H45
2008-11-04 06:01:11 C 01 08 18.65 +34 11 56.8 r H45
2008-11-04 06:03:09 C 01 08 17.82 +34 12 13.7 r H45
2008-11-04 06:04:19 C 01 08 17.35 +34 12 22.7 r H45
2008-11-04 06:06:05 C 01 08 16.60 +34 12 38.0 r H45
2008-11-04 06:07:02 C 01 08 16.22 +34 12 46.0 r H45
2008-11-04 12:49:38 C 01 05 36.29 +35 10 32.7 r 379
2008-11-04 12:52:50 C 01 05 34.88 +35 11 00.6 r 379
2008-11-04 13:09:33 C 01 05 27.53 +35 13 26.0 r 379
2008-11-04 13:11:45 C 01 05 26.52 +35 13 45.9 r 379
2008-11-04 13:13:56 C 01 05 25.56 +35 14 04.9 r 379
2008-11-04 13:22:29 C 01 05 21.77 +35 15 19.2 r 379
2008-11-04 13:24:42 C 01 05 20.79 +35 15 38.3 r 379
2008-11-04 14:26:53 C 01 04 53.25 +35 24 39.2 r 379
2008-11-04 14:30:06 C 01 04 51.81 +35 25 07.8 r 379
2008-11-04 15:05:54 C 01 04 35.90 +35 30 18.2 r 379
2008-11-04 15:16:54 C 01 04 30.96 +35 31 53.8 r 379
2008-11-05 04:21:33 C 00 58 44.49 +37 29 39.9 r H53
2008-11-05 04:23:24 C 00 58 43.49 +37 29 57.5 r H53
2008-11-05 04:25:47 C 00 58 42.40 +37 30 19.0 r H53
2008-11-05 04:27:59 C 00 58 41.26 +37 30 39.4 r H53
2008-11-05 04:30:44 C 00 58 39.90 +37 31 04.9 r H53
2008-11-05 04:33:44 C 00 58 38.31 +37 31 33.0 r H53
2008-11-05 14:23:10 C 00 53 48.31 +39 03 38.6 r 379
2008-11-05 14:25:50 C 00 53 46.91 +39 04 03.3 r 379
2008-11-05 14:35:08 C 00 53 41.90 +39 05 30.6 r 379
2008-11-06 02:03:50 C 00 47 38.81 +40 56 49.5 r H53
2008-11-06 02:05:36 C 00 47 37.74 +40 57 07.6 r H53
2008-11-06 02:08:14 C 00 47 36.12 +40 57 33.9 r H53
2008-11-06 02:10:15 C 00 47 35.00 +40 57 53.4 r H53
2008-11-06 02:12:15 C 00 47 33.82 +40 58 13.8 r H53
2008-11-06 02:15:17 C 00 47 32.03 +40 58 43.4 r H53
2008-11-07 04:40:37 C 00 30 40.54 +45 28 50.6 17.3 c 704
2008-11-07 04:57:47 C 00 30 27.24 +45 31 49.5 19.8 c 704
2008-11-07 05:15:19 C 00 30 14.36 +45 34 55.8 17.4 c 704
2008-11-07 05:32:28 C 00 30 01.40 +45 37 54.5 17.4 c 704
2008-11-07 05:49:50 C 00 29 48.20 +45 40 56.3 17.3 c 704
2008-11-07 17:37:23 C 00 20 52.88 +47 45 43.8 o 151
2008-11-07 17:38:18 C 00 20 52.06 +47 45 53.8 o 151
2008-11-07 17:39:14 C 00 20 51.23 +47 46 03.8 o 151
2008-11-07 17:40:11 C 00 20 50.52 +47 46 14.0 o 151
2008-11-07 17:41:06 C 00 20 49.79 +47 46 23.8 o 151
2008-11-07 17:42:02 C 00 20 49.00 +47 46 34.2 o 151
2008-11-07 17:42:58 C 00 20 48.21 +47 46 44.6 o 151
2008-11-07 23:48:02 C 00 15 31.93 +48 52 05.4 v 204
2008-11-07 23:49:38 C 00 15 30.54 +48 52 22.4 v 204
2008-11-07 23:51:15 C 00 15 29.12 +48 52 39.5 v 204
2008-11-07 23:52:52 C 00 15 27.68 +48 52 56.5 v 204
2008-11-07 23:54:29 C 00 15 26.26 +48 53 13.7 v 204
2008-11-08 04:38:21 C 00 11 19.52 +49 44 57.3 17.2 c 704