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
2004-09-09 20:50:33 C 21 50 05.66 +07 07 30.4 r A17
2004-09-09 21:11:15 C 21 50 04.30 +07 06 51.6 c 560
2004-09-09 21:14:43 C 21 50 04.01 +07 06 43.6 c 246
2004-09-09 21:15:59 C 21 50 03.94 +07 06 40.9 c 246
2004-09-09 21:17:20 C 21 50 03.86 +07 06 38.3 c 246
2004-09-09 21:21:59 C 21 50 03.56 +07 06 29.0 c 246
2004-09-09 21:22:11 C 21 50 03.66 +07 06 27.9 r A17
2004-09-09 21:22:53 C 21 50 03.51 +07 06 27.0 c 246
2004-09-09 21:23:29 C 21 50 03.54 +07 06 27.4 c 560
2004-09-09 21:24:47 C 21 50 03.36 +07 06 23.1 c 246
2004-09-09 21:27:44 C 21 50 03.19 +07 06 17.6 c 246
2004-09-09 21:41:52 C 21 50 02.45 +07 05 51.6 c 560
2004-09-10 20:25:08 C 21 48 44.19 +06 20 03.5 c 046
2004-09-10 20:27:16 C 21 48 44.11 +06 19 59.5 c 046
2004-09-10 20:28:14 C 21 48 44.01 +06 19 57.4 c 046
2004-09-10 20:29:10 C 21 48 43.92 +06 19 55.8 c 046
2004-09-10 20:30:22 C 21 48 43.81 +06 19 53.4 c 046
2004-09-10 20:31:26 C 21 48 43.82 +06 19 51.1 c 046
2004-09-10 20:37:26 C 21 48 43.40 +06 19 37.5 c A48
2004-09-10 23:26:07 C 21 48 32.93 +06 13 55.3 r A41
2004-09-11 05:26:09 C 21 48 12.98 +06 01 40.7 18.2 c 704
2004-09-11 05:43:09 C 21 48 11.94 +06 01 05.7 18.8 c 704
2004-09-11 06:00:08 C 21 48 10.81 +06 00 30.7 19.0 c 704
2004-09-11 06:17:15 C 21 48 09.80 +05 59 54.9 18.8 c 704
2004-09-11 06:34:19 C 21 48 08.70 +05 59 20.1 18.9 c 704
2004-09-12 21:41:53 C 21 45 57.55 +04 37 04.7 d 170
2004-09-12 21:43:43 C 21 45 57.44 +04 37 00.6 d 170
2004-09-12 21:45:33 C 21 45 57.30 +04 36 56.7 d 170
2004-09-12 21:49:14 C 21 45 57.03 +04 36 48.7 d 170
2004-09-14 04:44:36 C 21 44 15.97 +03 29 44.6 18.7 c 704
2004-09-14 05:00:43 C 21 44 15.03 +03 29 08.7 19.0 c 704
2004-09-14 05:16:49 C 21 44 14.08 +03 28 32.7 19.0 c 704
2004-09-14 05:33:20 C 21 44 13.06 +03 27 56.4 19.1 c 704
2004-09-14 05:49:27 C 21 44 12.12 +03 27 21.3 19.0 c 704
2004-09-15 04:46:52 C 21 42 59.05 +02 36 20.4 r H41
2004-09-15 04:50:05 C 21 42 58.87 +02 36 14.7 r H41
2004-09-16 20:27:16 C 21 40 57.76 +01 06 06.8 c A48
2004-09-16 20:39:27 C 21 40 57.07 +01 05 39.0 c A48
2004-09-17 19:08:03 C 21 39 51.42 +00 13 34.6 c 246
2004-09-17 19:08:59 C 21 39 51.38 +00 13 32.4 c 246
2004-09-17 19:10:10 C 21 39 51.33 +00 13 29.6 c 246
2004-09-17 19:11:09 C 21 39 51.28 +00 13 27.1 c 246
2004-09-17 19:12:23 C 21 39 51.22 +00 13 24.8 c 246
2004-09-17 19:13:21 C 21 39 51.14 +00 13 22.6 c 246
2004-09-18 04:31:22 C 21 39 24.16 -00 08 17.3 18.8 c 704
2004-09-18 04:48:31 C 21 39 23.22 -00 08 58.1 19.1 c 704
2004-09-18 05:05:30 C 21 39 22.29 -00 09 38.0 18.7 c 704
2004-09-18 05:22:31 C 21 39 21.37 -00 10 17.7 18.9 c 704
2004-09-18 05:39:30 C 21 39 20.44 -00 10 57.5 18.9 c 704
2004-09-18 19:16:40 C 21 38 43.27 -00 43 03.1 r 941