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
1986-10-02 10:41:19 21 20 13.96 -13 10 37.7 c 260
1986-10-02 11:26:19 21 20 13.19 -13 12 19.3 c 260
2004-09-03 08:22:59 C 21 59 18.92 +11 48 50.7 o 699
2004-09-03 08:41:43 C 21 59 17.68 +11 48 19.6 o 699
2004-09-03 09:00:24 C 21 59 16.48 +11 47 50.7 o 699
2004-09-03 09:21:59 C 21 59 15.20 +11 47 16.8 o 699
2004-09-03 19:03:06 C 21 58 42.32 +11 31 32.3 d 118
2004-09-03 19:08:11 C 21 58 42.13 +11 31 24.3 d 118
2004-09-03 19:23:33 C 21 58 41.08 +11 30 58.8 d 118
2004-09-03 19:28:39 C 21 58 40.77 +11 30 50.0 d 118
2004-09-03 19:40:32 C 21 58 40.14 +11 30 31.7 r 143
2004-09-03 19:43:05 C 21 58 39.85 +11 30 27.6 c 246
2004-09-03 19:44:11 C 21 58 39.81 +11 30 25.5 c 246
2004-09-03 19:45:17 C 21 58 39.75 +11 30 23.8 c 246
2004-09-03 19:46:24 C 21 58 39.61 +11 30 22.2 c 246
2004-09-03 19:46:57 C 21 58 39.67 +11 30 20.3 r 143
2004-09-03 19:47:34 C 21 58 39.59 +11 30 20.1 c 246
2004-09-03 19:49:47 C 21 58 39.47 +11 30 16.3 c 246
2004-09-03 19:52:09 C 21 58 39.28 +11 30 12.6 c 246
2004-09-03 19:53:57 C 21 58 39.25 +11 30 09.2 r 143
2004-09-03 20:37:26 C 21 58 36.58 +11 28 58.6 r 163
2004-09-03 20:38:13 C 21 58 36.52 +11 28 57.2 r 163
2004-09-03 20:39:44 C 21 58 36.43 +11 28 53.8 r 163
2004-09-03 21:00:32 C 21 58 35.21 +11 28 20.2 r J95
2004-09-03 21:09:01 C 21 58 34.66 +11 28 06.0 r J95
2004-09-03 21:17:05 C 21 58 34.17 +11 27 53.0 r J95
2004-09-04 03:04:14 C 21 58 13.89 +11 18 25.8 r H36
2004-09-04 03:16:45 C 21 58 13.00 +11 18 06.1 r H36
2004-09-04 03:29:07 C 21 58 12.26 +11 17 48.0 r H36
2004-09-04 03:40:52 C 21 58 11.44 +11 17 26.3 r H36
2004-09-04 19:33:31 C 21 57 15.12 +10 50 52.4 o 151
2004-09-04 19:37:19 C 21 57 14.90 +10 50 46.7 o 151
2004-09-04 19:38:44 C 21 57 14.78 +10 50 43.9 o 151
2004-09-04 19:42:07 C 21 57 14.56 +10 50 37.8 o 151
2004-09-04 19:48:42 C 21 57 14.12 +10 50 27.4 c 246
2004-09-04 19:49:42 C 21 57 14.04 +10 50 25.9 c 246
2004-09-04 19:50:43 C 21 57 13.96 +10 50 24.3 c 246
2004-09-04 19:51:46 C 21 57 13.92 +10 50 21.9 c 246
2004-09-04 19:52:48 C 21 57 13.84 +10 50 20.2 c 246
2004-09-04 19:54:00 C 21 57 13.76 +10 50 18.3 c 246
2004-09-04 20:40:55 C 21 57 10.96 +10 48 57.3 r J95
2004-09-04 20:52:49 C 21 57 10.25 +10 48 37.5 r J95
2004-09-04 22:33:07 C 21 57 03.85 +10 45 48.1 c J92
2004-09-04 23:45:27 C 21 56 59.27 +10 43 45.2 c J92
2004-09-05 20:57:22 C 21 55 44.22 +10 07 07.8 c 246
2004-09-05 20:58:26 C 21 55 44.12 +10 07 05.8 c 246
2004-09-05 21:00:57 C 21 55 43.98 +10 07 01.3 c 246
2004-09-05 21:02:34 C 21 55 43.85 +10 06 58.5 c 246
2004-09-05 21:05:04 C 21 55 43.72 +10 06 54.0 c 246
2004-09-05 21:47:51 C 21 55 41.08 +10 05 38.8 r 185