242187 (2003 KR18)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4800853584 ± 2.24e-08
Semi-major axis (a)2.3468066495 AU ± 1.70e-09
Inclination (i)5.58255458° ± 1.85e-06
Long. of Asc. Node (Ω)244.02942004° ± 2.18e-05
Arg. of Perihelion (ω)86.84876555° ± 2.60e-05
Mean Anomaly (M)73.56291240° ± 5.49e-06
Mean Motion (n)0.2741550885°/day ± 2.97e-10
Perihelion dist (q)1.22013914 AU ± 5.26e-08
Aphelion dist (Q)3.47347416 AU ± 5.26e-08
Orbital Period3.59514131 yr ± 3.90e-09
Physical Parameters
H (abs. magnitude)17.99
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.406″
Uncertainty0
Orbit TypeAmor
MOID0.233460 AU
Observations Used907
Oppositions28
Arc Total1985-2024
First Observation Used1985-09-08
Last Observation Used2024-05-08
Observations (1122)
Date Type RA Dec Mag Band Observatory
2003-08-20 06:27:58 C 00 12 13.79 +27 45 29.2 r 642
2003-08-20 06:35:53 C 00 12 14.63 +27 45 34.4 r 642
2003-08-20 20:35:55 C 00 13 37.19 +27 54 51.5 d 557
2003-08-20 20:39:07 C 00 13 37.50 +27 54 53.6 d 557
2003-08-20 20:42:18 C 00 13 37.80 +27 54 56.1 d 557
2003-08-21 00:21:14 C 00 13 58.32 +27 57 27.3 126
2003-08-21 00:30:29 C 00 13 59.22 +27 57 33.4 126
2003-08-21 00:34:33 C 00 13 59.48 +27 57 34.6 126
2003-08-21 00:47:21 C 00 14 00.69 +27 57 44.5 126
2003-08-21 01:17:24 C 00 14 03.51 +27 58 01.5 c 196
2003-08-21 01:57:01 C 00 14 07.10 +27 58 27.3 c 196
2003-08-21 07:45:59 C 00 14 41.71 +28 02 17.6 17.4 c 704
2003-08-21 08:03:27 C 00 14 43.27 +28 02 29.0 17.4 c 704
2003-08-21 08:20:43 C 00 14 44.81 +28 02 40.7 17.3 c 704
2003-08-21 08:37:58 C 00 14 46.35 +28 02 51.7 17.5 c 704
2003-08-21 08:55:21 C 00 14 47.88 +28 03 02.9 17.4 c 704
2003-08-21 10:30:25 C 00 14 56.75 +28 04 02.1 15.5 672
2003-08-21 23:03:25 C 00 16 10.44 +28 11 41.9 r 213
2003-08-21 23:04:52 C 00 16 10.62 +28 11 42.9 r 213
2003-08-21 23:06:21 C 00 16 10.69 +28 11 43.9 r 213
2003-08-22 00:15:32 C 00 16 16.29 +28 12 29.5 i 071
2003-08-22 00:20:18 C 00 16 16.63 +28 12 32.2 i 071
2003-08-22 00:24:46 C 00 16 17.21 +28 12 35.3 i 071
2003-08-22 01:28:33 C 00 16 22.93 +28 13 10.8 d 118
2003-08-22 01:32:26 C 00 16 23.24 +28 13 13.3 d 118
2003-08-22 01:37:39 C 00 16 24.05 +28 13 16.0 c 196
2003-08-22 01:39:38 C 00 16 23.96 +28 13 18.0 d 118
2003-08-22 02:08:29 C 00 16 26.77 +28 13 33.8 c 196
2003-08-22 23:03:03 C 00 18 26.24 +28 25 48.5 c 196
2003-08-22 23:37:44 C 00 18 29.30 +28 26 09.1 c 196
2003-08-23 00:23:47 C 00 18 33.33 +28 26 35.8 c 196
2003-08-23 01:24:21 C 00 18 38.62 +28 27 10.8 c 196
2003-08-23 16:31:40 C 00 20 02.68 +28 35 39.3 355
2003-08-23 16:48:03 C 00 20 04.04 +28 35 47.9 355
2003-08-23 17:01:51 C 00 20 05.18 +28 35 55.6 355
2003-08-23 22:41:30 C 00 20 37.46 +28 38 48.1 16.7 c 469
2003-08-23 22:50:19 C 00 20 38.22 +28 38 53.1 16.6 c 469
2003-08-23 22:58:18 C 00 20 38.84 +28 38 56.9 c 196
2003-08-23 22:59:30 C 00 20 39.01 +28 38 58.1 16.6 c 469
2003-08-23 23:08:59 C 00 20 39.83 +28 39 03.8 16.7 c 469
2003-08-23 23:18:19 C 00 20 40.61 +28 39 08.7 16.6 c 469
2003-08-23 23:52:29 C 00 20 43.57 +28 39 27.5 c 196
2003-08-24 01:00:38 C 00 20 49.31 +28 40 03.5 c 196
2003-08-25 11:24:00 C 00 23 53.10 +28 57 15.7 16.7 c 644
2003-08-25 11:40:44 C 00 23 54.44 +28 57 23.2 16.7 c 644
2003-08-25 11:57:25 C 00 23 55.78 +28 57 30.7 16.7 c 644
2003-08-25 21:48:44 C 00 24 50.14 +29 01 51.2 J87
2003-08-25 21:53:46 C 00 24 50.56 +29 01 53.9 J87
2003-08-25 21:57:35 C 00 24 50.83 +29 01 55.7 J87
2003-08-27 00:54:47 C 00 27 08.20 +29 13 28.6 c 196