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
2008-10-06 09:13:51 C 02 16 51.02 +01 29 31.4 r G96
2008-10-06 09:27:24 C 02 16 50.80 +01 29 40.3 r G96
2008-10-06 09:40:58 C 02 16 50.59 +01 29 49.3 r G96
2008-10-06 09:54:32 C 02 16 50.37 +01 29 58.4 r G96
2008-10-25 21:59:40 C 01 55 22.32 +13 44 19.6 c A05
2008-10-25 22:51:12 C 01 55 16.13 +13 47 08.8 c A05
2008-10-26 06:02:49 C 01 54 28.20 +14 11 16.9 17.4 c 704
2008-10-26 06:19:30 C 01 54 26.09 +14 12 13.5 17.7 c 704
2008-10-26 06:36:05 C 01 54 23.99 +14 13 09.8 17.5 c 704
2008-10-26 06:52:38 C 01 54 21.91 +14 14 06.0 17.4 c 704
2008-10-26 07:09:21 C 01 54 19.81 +14 15 04.2 18.3 c 704
2008-10-26 20:14:40 C 01 52 50.11 +15 00 32.4 c A05
2008-10-26 20:20:04 C 01 52 49.42 +15 00 52.2 c A05
2008-10-26 20:27:48 C 01 52 48.42 +15 01 21.0 c A05
2008-10-26 20:29:25 C 01 52 48.04 +15 01 18.7 r J95
2008-10-26 20:31:39 C 01 52 47.75 +15 01 26.7 r J95
2008-10-26 20:34:05 C 01 52 47.45 +15 01 35.5 r J95
2008-10-26 20:37:58 C 01 52 47.08 +15 01 56.8 c A05
2008-10-26 20:44:53 C 01 52 46.22 +15 02 21.8 c A05
2008-10-26 20:49:12 C 01 52 44.94 +15 02 34.5 v B03
2008-10-26 20:50:53 C 01 52 45.42 +15 02 43.5 c A05
2008-10-26 20:52:41 C 01 52 46.10 +15 03 00.0 w J47
2008-10-26 20:54:51 C 01 52 44.19 +15 02 54.9 v B03
2008-10-26 20:54:57 C 01 52 45.83 +15 03 08.1 w J47
2008-10-26 20:56:55 C 01 52 45.61 +15 03 15.4 w J47
2008-10-26 20:59:36 C 01 52 44.33 +15 03 16.1 w 213
2008-10-26 20:59:45 C 01 52 45.20 +15 03 25.4 w J47
2008-10-26 21:00:29 C 01 52 43.47 +15 03 15.4 v B03
2008-10-26 21:00:52 C 01 52 45.06 +15 03 29.7 w J47
2008-10-26 21:03:25 C 01 52 44.74 +15 03 38.8 w J47
2008-10-26 21:04:29 C 01 52 43.72 +15 03 33.8 r B49
2008-10-26 21:04:52 C 01 52 43.58 +15 03 34.3 c A05
2008-10-26 21:07:05 C 01 52 44.26 +15 03 52.0 w J47
2008-10-26 21:07:07 C 01 52 43.37 +15 03 43.5 r B49
2008-10-26 21:07:36 C 01 52 43.22 +15 03 44.6 w 213
2008-10-26 21:08:33 C 01 52 43.19 +15 03 48.7 r B49
2008-10-26 21:08:34 C 01 52 43.13 +15 03 48.5 w 213
2008-10-26 21:13:18 C 01 52 42.58 +15 04 06.1 r B49
2008-10-26 21:16:50 C 01 52 42.13 +15 04 18.8 r B49
2008-10-26 21:21:49 C 01 52 41.36 +15 04 35.6 c A05
2008-10-26 21:22:44 C 01 52 41.31 +15 04 40.9 r B49
2008-10-26 21:27:26 C 01 52 40.07 +15 05 02.2 o B40
2008-10-26 21:28:41 C 01 52 40.48 +15 05 02.4 r B49
2008-10-26 21:31:35 C 01 52 39.50 +15 05 16.8 o B40
2008-10-26 21:36:45 C 01 52 39.37 +15 05 29.7 c A05
2008-10-26 21:39:15 C 01 52 39.04 +15 05 40.1 r B49
2008-10-26 21:40:26 C 01 52 38.31 +15 05 48.7 o B40
2008-10-26 21:45:59 C 01 52 37.62 +15 06 08.8 o B40
2008-10-26 21:47:57 C 01 52 37.88 +15 06 12.0 r B49
2008-10-26 21:55:35 C 01 52 36.89 +15 06 39.3 r B49