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
2003-09-14 21:02:21 C 00 54 57.48 +29 30 53.4 r 240
2003-09-14 21:03:39 C 00 54 57.52 +29 30 53.2 r 240
2003-09-14 21:06:14 C 00 54 57.60 +29 30 52.5 r 240
2003-09-14 21:16:36 C 00 54 57.97 +29 30 49.8 r 240
2003-09-15 20:08:05 C 00 55 49.51 +29 23 35.4 r 151
2003-09-15 20:09:23 C 00 55 49.55 +29 23 35.1 r 151
2003-09-15 20:10:01 C 00 55 49.57 +29 23 34.9 r 151
2003-09-15 20:10:37 C 00 55 49.59 +29 23 34.7 r 151
2003-09-15 20:12:12 C 00 55 49.63 +29 23 34.4 r 151
2003-09-15 20:13:03 C 00 55 49.68 +29 23 34.3 r 151
2003-09-15 20:14:08 C 00 55 49.70 +29 23 33.8 r 151
2003-09-15 20:14:49 C 00 55 49.72 +29 23 33.6 r 151
2003-09-16 20:26:57 C 00 56 40.59 +29 15 10.4 c 113
2003-09-16 20:31:09 C 00 56 40.73 +29 15 08.9 c 113
2003-09-16 20:35:19 C 00 56 40.85 +29 15 07.7 c 113
2003-09-16 20:39:29 C 00 56 40.98 +29 15 06.6 c 113
2003-09-17 21:06:05 C 00 57 28.56 +29 05 50.0 o 084
2003-09-18 08:23:00 C 00 57 49.49 +29 01 31.5 c 670
2003-09-18 11:18:10 C 00 57 53.51 +29 00 17.7 c 670
2003-09-18 23:11:51 C 00 58 16.38 +28 55 12.7 r 198
2003-09-18 23:13:54 C 00 58 16.44 +28 55 11.9 r 198
2003-09-18 23:27:27 C 00 58 16.76 +28 55 06.4 r 198
2003-09-18 23:29:08 C 00 58 16.80 +28 55 05.7 r 198
2003-09-18 23:49:19 C 00 58 17.30 +28 54 57.1 c 196
2003-09-19 00:33:29 C 00 58 18.31 +28 54 38.6 c 196
2003-09-19 01:09:55 C 00 58 19.17 +28 54 22.6 c 196
2003-09-19 09:11:19 C 00 58 33.09 +28 51 01.5 16.6 c 644
2003-09-19 09:41:43 C 00 58 33.72 +28 50 47.9 16.6 c 644
2003-09-19 10:12:00 C 00 58 34.36 +28 50 34.3 16.6 c 644
2003-09-19 23:28:35 C 00 58 57.58 +28 44 30.4 c 196
2003-09-20 00:26:46 C 00 58 58.84 +28 44 03.5 c 196
2003-09-20 01:10:27 C 00 58 59.73 +28 43 43.8 c 196
2003-09-21 23:26:19 C 01 00 09.89 +28 21 20.8 i 071
2003-09-21 23:30:55 C 01 00 10.00 +28 21 18.5 i 071
2003-09-24 20:21:41 C 01 01 36.31 +27 43 23.2 o 084
2003-09-24 20:42:49 C 01 01 37.25 +27 43 15.3 A30
2003-09-24 20:49:31 C 01 01 37.32 +27 43 11.6 A30
2003-09-24 20:55:02 C 01 01 37.45 +27 43 08.6 A30
2003-09-24 21:03:17 C 01 01 37.57 +27 43 03.9 A30
2003-09-24 21:13:02 C 01 01 37.66 +27 42 58.8 A30
2003-09-25 21:24:25 C 01 02 02.81 +27 28 30.2 c 127
2003-09-25 21:40:28 C 01 02 03.00 +27 28 21.0 c 127
2003-09-25 21:56:38 C 01 02 03.20 +27 28 11.4 c 127
2003-09-26 21:18:24 C 01 02 25.56 +27 13 44.3 r 130
2003-09-26 21:22:45 C 01 02 25.63 +27 13 41.5 r 130
2003-09-26 21:27:07 C 01 02 25.67 +27 13 39.1 r 130
2003-09-26 21:31:28 C 01 02 25.71 +27 13 36.1 r 130
2003-09-29 19:38:28 C 01 03 21.57 +26 27 21.4 c 434
2003-09-29 19:41:07 C 01 03 21.56 +26 27 19.0 c 434
2003-09-29 19:44:56 C 01 03 21.58 +26 27 16.4 c 434