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
2003-07-15 01:05:12 C 22 30 47.50 +09 48 22.3 d 118
2003-07-15 01:18:00 C 22 30 48.95 +09 48 42.2 d 118
2003-07-15 01:22:55 C 22 30 49.55 +09 48 50.2 d 118
2003-07-19 22:35:13 C 22 45 03.74 +12 50 02.6 c J87
2003-07-19 22:40:07 C 22 45 04.23 +12 50 09.7 c J87
2003-07-19 22:47:39 C 22 45 05.17 +12 50 21.4 c J87
2003-07-19 23:51:52 C 22 45 12.35 +12 51 59.2 d 118
2003-07-19 23:54:35 C 22 45 12.70 +12 52 03.5 d 118
2003-07-19 23:58:05 C 22 45 13.09 +12 52 09.2 d 118
2003-07-20 00:02:07 C 22 45 13.58 +12 52 15.1 d 118
2003-07-21 00:22:54 C 22 48 11.66 +13 29 29.9 d 118
2003-07-21 00:28:28 C 22 48 12.33 +13 29 38.4 d 118
2003-07-21 00:32:18 C 22 48 12.77 +13 29 44.3 d 118
2003-07-21 22:28:42 C 22 50 54.30 +14 03 05.1 126
2003-07-21 22:36:57 C 22 50 55.35 +14 03 18.9 126
2003-07-21 23:09:27 C 22 50 59.24 +14 04 09.1 126
2003-07-22 10:11:47 C 22 52 19.32 +14 20 57.3 16.7 c 644
2003-07-22 10:28:06 C 22 52 21.20 +14 21 21.9 17.2 c 644
2003-07-22 10:44:32 C 22 52 23.10 +14 21 46.8 16.5 c 644
2003-07-25 00:39:10 C 22 59 58.21 +15 54 14.4 d 941
2003-07-25 00:39:49 C 22 59 58.28 +15 54 15.3 d 941
2003-07-25 00:40:28 C 22 59 58.35 +15 54 16.3 d 941
2003-07-25 00:41:07 C 22 59 58.42 +15 54 17.2 d 941
2003-07-25 00:41:46 C 22 59 58.49 +15 54 18.2 d 941
2003-07-25 22:46:24 C 23 02 40.94 +16 26 41.5 J87
2003-07-25 22:55:05 C 23 02 41.93 +16 26 54.2 J87
2003-07-25 22:57:40 C 23 02 42.17 +16 26 59.5 d 170
2003-07-25 22:58:54 C 23 02 42.32 +16 27 01.1 d 170
2003-07-25 23:00:44 C 23 02 42.57 +16 27 03.8 d 170
2003-07-25 23:03:25 C 23 02 42.94 +16 27 06.6 J87
2003-07-25 23:19:52 C 23 02 44.93 +16 27 31.0 J87
2003-07-27 23:53:04 C 23 08 40.07 +17 37 33.8 126
2003-07-28 00:13:52 C 23 08 42.53 +17 38 04.5 126
2003-07-28 00:38:13 C 23 08 45.34 +17 38 40.1 126
2003-07-28 07:41:00 C 23 09 37.20 +17 48 44.0 18.0 c 704
2003-07-28 07:56:01 C 23 09 38.90 +17 49 06.3 18.3 c 704
2003-07-28 08:12:13 C 23 09 40.78 +17 49 28.8 18.5 c 704
2003-07-28 08:27:15 C 23 09 42.54 +17 49 50.3 18.4 c 704
2003-07-30 00:00:41 C 23 14 31.20 +18 45 04.0 c 240
2003-07-30 00:01:36 C 23 14 31.31 +18 45 05.2 c 240
2003-07-30 00:05:03 C 23 14 31.71 +18 45 09.9 c 240
2003-07-30 00:07:26 C 23 14 31.99 +18 45 13.2 c 240
2003-07-30 00:10:39 C 23 14 32.36 +18 45 17.6 c 240
2003-07-30 00:14:38 C 23 14 32.87 +18 45 23.4 c 240
2003-08-01 00:27:49 C 23 20 22.86 +19 50 50.7 c 198
2003-08-01 00:32:44 C 23 20 23.45 +19 50 57.5 c 198
2003-08-01 00:45:05 C 23 20 24.86 +19 51 13.8 c 198
2003-08-01 00:49:41 C 23 20 25.40 +19 51 19.9 c 198
2003-08-01 23:43:09 C 23 23 11.05 +20 21 29.3 c 108
2003-08-01 23:53:19 C 23 23 12.37 +20 21 51.0 c 108