238456 (2004 RK)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3003400724 ± 1.57e-08
Semi-major axis (a)1.3887970186 AU ± 6.37e-10
Inclination (i)18.14852500° ± 4.67e-06
Long. of Asc. Node (Ω)178.75061064° ± 4.99e-06
Arg. of Perihelion (ω)264.46589181° ± 7.85e-06
Mean Anomaly (M)277.71808476° ± 5.44e-06
Mean Motion (n)0.6022185279°/day ± 4.14e-10
Perihelion dist (q)0.97168562 AU ± 2.18e-08
Aphelion dist (Q)1.80590842 AU ± 2.18e-08
Orbital Period1.63665885 yr ± 1.13e-09
Physical Parameters
H (abs. magnitude)19.43
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.342″
Uncertainty0
Orbit TypeApollo
MOID0.163581 AU
Observations Used542
Oppositions15
Arc Total1986-2025
First Observation Used1986-10-02
Last Observation Used2025-07-28
Observations (584)
Date Type RA Dec Mag Band Observatory
2004-09-05 21:50:43 C 21 55 40.89 +10 05 33.5 r 185
2004-09-05 21:53:40 C 21 55 40.68 +10 05 28.5 r 185
2004-09-05 21:56:40 C 21 55 40.53 +10 05 23.0 r 185
2004-09-05 21:59:37 C 21 55 40.31 +10 05 17.9 r 185
2004-09-05 22:05:06 C 21 55 40.01 +10 05 05.3 r 185
2004-09-05 23:27:10 C 21 55 34.88 +10 02 43.1 c J92
2004-09-05 23:51:32 C 21 55 33.31 +10 02 00.2 c J92
2004-09-05 23:56:03 C 21 55 33.05 +10 01 51.8 r J95
2004-09-06 00:05:30 C 21 55 32.42 +10 01 35.0 r J95
2004-09-06 00:14:57 C 21 55 31.85 +10 01 18.6 r J95
2004-09-06 00:21:04 C 21 55 31.42 +10 01 07.8 c J92
2004-09-06 00:50:14 C 21 55 29.58 +10 00 16.4 c J92
2004-09-06 19:43:24 C 21 54 23.50 +09 26 28.7 r A17
2004-09-06 20:28:57 C 21 54 20.64 +09 25 06.3 r A17
2004-09-06 20:29:11 C 21 54 20.53 +09 25 07.4 c 246
2004-09-06 20:31:17 C 21 54 20.41 +09 25 03.8 c 246
2004-09-06 20:32:57 C 21 54 20.30 +09 25 00.6 c 246
2004-09-06 20:34:03 C 21 54 20.21 +09 24 58.5 c 246
2004-09-06 20:35:46 C 21 54 20.12 +09 24 55.4 c 246
2004-09-06 20:48:10 C 21 54 19.32 +09 24 32.6 c 113
2004-09-06 20:49:45 C 21 54 19.23 +09 24 29.7 c 113
2004-09-06 20:51:21 C 21 54 19.12 +09 24 27.1 c 113
2004-09-06 20:52:57 C 21 54 19.02 +09 24 24.2 c 113
2004-09-06 21:04:42 C 21 54 18.32 +09 24 01.1 r A17
2004-09-07 20:54:49 C 21 52 53.76 +08 40 03.7 c 113
2004-09-07 20:55:54 C 21 52 53.69 +08 40 01.8 c 113
2004-09-07 20:57:00 C 21 52 53.63 +08 39 59.5 c 113
2004-09-07 20:58:05 C 21 52 53.56 +08 39 57.5 c 113
2004-09-07 20:59:09 C 21 52 53.49 +08 39 55.4 c 113
2004-09-07 23:03:59 C 21 52 45.73 +08 36 00.7 j 012
2004-09-07 23:08:13 C 21 52 45.39 +08 35 52.8 j 012
2004-09-07 23:11:13 C 21 52 45.28 +08 35 47.5 j 012
2004-09-07 23:14:14 C 21 52 45.06 +08 35 41.4 j 012
2004-09-07 23:17:13 C 21 52 44.96 +08 35 36.2 j 012
2004-09-07 23:23:15 C 21 52 44.50 +08 35 24.5 j 012
2004-09-08 04:26:59 C 21 52 27.59 +08 25 57.9 18.3 c 644
2004-09-08 04:57:56 C 21 52 25.59 +08 24 59.3 18.2 c 644
2004-09-08 05:37:27 C 21 52 23.05 +08 23 44.8 18.3 c 644
2004-09-08 19:48:51 C 21 51 33.47 +07 56 30.7 r 185
2004-09-08 20:20:14 C 21 51 31.43 +07 55 29.9 r A17
2004-09-08 20:21:27 C 21 51 31.43 +07 55 28.1 r 185
2004-09-08 20:47:39 C 21 51 29.70 +07 54 37.0 r A17
2004-09-08 21:08:39 C 21 51 28.36 +07 53 56.6 r A17
2004-09-08 21:22:19 C 21 51 27.44 +07 53 31.9 r A30
2004-09-08 21:23:51 C 21 51 27.36 +07 53 29.2 r A30
2004-09-08 21:37:15 C 21 51 26.59 +07 53 01.5 r A17
2004-09-08 21:57:00 C 21 51 25.29 +07 52 25.9 c 587
2004-09-08 22:00:38 C 21 51 24.96 +07 52 16.8 c 587
2004-09-08 22:04:14 C 21 51 24.76 +07 52 11.6 c 587
2004-09-09 20:13:09 C 21 50 07.97 +07 08 44.8 r A17