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
2004-09-18 19:17:31 C 21 38 43.23 -00 43 05.1 r 941
2004-09-18 19:18:18 C 21 38 43.19 -00 43 07.0 r 941
2004-09-18 19:19:03 C 21 38 43.15 -00 43 08.8 r 941
2004-09-18 19:19:46 C 21 38 43.12 -00 43 10.4 r 941
2004-09-20 10:45:59 C 21 36 56.92 -02 16 34.0 r E14
2004-09-20 10:54:25 C 21 36 56.56 -02 16 54.9 r E14
2004-09-20 11:02:52 C 21 36 56.10 -02 17 15.0 r E14
2004-10-02 12:26:00 C 21 28 45.70 -14 02 22.3 c 474
2004-10-02 12:27:46 C 21 28 45.66 -14 02 26.8 c 474
2004-10-02 12:30:47 C 21 28 45.62 -14 02 33.8 c 474
2004-10-03 02:46:03 C 21 28 38.04 -14 37 08.7 18.7 c 644
2004-10-03 03:14:37 C 21 28 37.57 -14 38 17.2 18.7 c 644
2004-10-03 03:45:43 C 21 28 37.05 -14 39 31.2 18.6 c 644
2004-10-09 02:16:07 C 21 28 31.00 -20 07 37.4 19.3 c 704
2004-10-09 02:31:52 C 21 28 30.99 -20 08 13.5 19.8 c 704
2004-10-09 02:47:26 C 21 28 31.07 -20 08 47.8 19.2 c 704
2004-10-09 03:03:00 C 21 28 31.09 -20 09 21.8 19.1 c 704
2004-10-09 03:18:30 C 21 28 31.13 -20 09 56.2 19.5 c 704
2004-10-14 02:04:30 C 21 30 29.88 -24 22 49.7 o 699
2004-10-14 02:26:44 C 21 30 30.31 -24 23 34.9 o 699
2004-10-14 02:48:56 C 21 30 30.57 -24 24 22.0 o 699
2004-10-14 03:11:12 C 21 30 31.03 -24 25 07.9 o 699
2004-11-22 12:37:04 C 22 47 52.41 -46 07 49.5 r 413
2004-11-22 12:53:03 C 22 47 54.36 -46 08 01.5 r 413
2005-02-04 11:35:00 C 04 27 42.15 -42 24 33.6 r 474
2005-02-04 11:39:59 C 04 27 43.27 -42 24 24.0 r 474
2005-02-04 11:46:00 C 04 27 44.68 -42 24 13.1 r 474
2005-02-04 11:49:39 C 04 27 45.45 -42 24 06.3 r 474
2005-03-08 18:17:03 C 07 17 50.50 -06 14 33.6 c 104
2005-03-08 18:20:46 C 07 17 50.97 -06 14 24.1 c 104
2005-03-08 18:24:00 C 07 17 51.55 -06 14 16.1 c 104
2005-03-08 18:33:09 C 07 17 53.44 -06 13 46.2 c 104
2005-03-17 03:40:26 C 07 54 09.13 +02 39 02.0 r 703
2005-03-17 03:52:49 C 07 54 11.20 +02 39 31.2 r 703
2005-03-17 04:05:12 C 07 54 13.20 +02 39 59.8 r 703
2005-03-17 04:17:35 C 07 54 15.26 +02 40 29.3 r 703
2005-03-27 19:51:11 C 08 35 03.17 +10 48 58.2 r 170
2005-03-27 19:53:36 C 08 35 03.54 +10 49 01.0 r 170
2005-03-27 19:56:00 C 08 35 03.90 +10 49 04.5 r 170
2005-04-09 04:25:53 C 09 15 58.64 +16 23 07.5 r 703
2005-04-09 04:37:35 C 09 15 59.97 +16 23 13.3 r 703
2005-04-09 04:49:18 C 09 16 01.48 +16 23 24.9 r 703
2005-04-09 05:01:02 C 09 16 02.89 +16 23 36.6 r 703
2005-06-01 04:46:39 C 11 27 19.431 +17 30 17.31 n 645
2005-06-01 04:51:26 C 11 27 19.823 +17 30 15.62 n 645
2007-05-12 08:56:49 C 18 23 14.69 +09 06 03.4 22.3 o H55
2007-06-20 05:53:02 C 17 33 28.26 +15 23 26.5 22.0 o H55
2007-06-20 06:02:58 C 17 33 27.55 +15 23 26.4 22.0 o H55
2007-06-20 06:14:31 C 17 33 26.74 +15 23 25.7 21.8 o H55
2009-09-21 10:21:51 C 04 58 26.25 +05 22 29.6 r 703