857421 (2012 KL18)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4408041732 ± 2.34e-08
Semi-major axis (a)2.2256177282 AU ± 2.86e-09
Inclination (i)19.48521049° ± 7.04e-06
Long. of Asc. Node (Ω)289.31824547° ± 5.99e-06
Arg. of Perihelion (ω)284.76592688° ± 1.21e-05
Mean Anomaly (M)38.26132054° ± 8.61e-06
Mean Motion (n)0.2968495659°/day ± 5.72e-10
Perihelion dist (q)1.24455615 AU ± 5.20e-08
Aphelion dist (Q)3.20667931 AU ± 5.22e-08
Orbital Period3.32028878 yr ± 6.40e-09
Physical Parameters
H (abs. magnitude)18.78
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.146″
Uncertainty0
Orbit TypeAmor
MOID0.392775 AU
Observations Used191
Oppositions11
Arc Total2009-2025
First Observation Used2009-09-27
Last Observation Used2025-01-20
Observations (199)
Date Type RA Dec Mag Band Observatory
2009-09-27 06:57:36 C 21 46 01.95 +13 04 22.0 o 645
2009-09-27 06:58:48 C 21 46 01.91 +13 04 21.3 o 645
2009-09-27 07:02:23 C 21 46 01.85 +13 04 20.0 o 645
2012-05-20 15:15:25 C 20 02 07.88 -56 18 42.5 r E12
2012-05-20 15:27:28 C 20 02 07.43 -56 18 30.3 r E12
2012-05-20 15:39:33 C 20 02 07.08 -56 18 19.6 r E12
2012-05-20 15:51:31 C 20 02 06.57 -56 18 08.1 r E12
2012-05-20 17:08:52 C 20 02 03.74 -56 16 54.4 r E12
2012-05-20 19:40:59 C 20 01 58.20 -56 14 24.8 r E12
2012-05-20 19:45:40 C 20 01 58.02 -56 14 20.0 r E12
2012-05-21 07:51:35 C 20 01 37.56 -56 02 26.1 o 807
2012-05-21 07:57:21 C 20 01 37.34 -56 02 20.4 o 807
2012-05-21 08:03:09 C 20 01 37.10 -56 02 14.9 o 807
2012-05-21 08:08:56 C 20 01 36.88 -56 02 09.2 o 807
2012-05-21 13:16:11 C 20 01 28.60 -55 56 55.9 r E12
2012-05-21 16:18:56 C 20 01 21.80 -55 54 01.6 r E12
2012-05-21 17:42:26 C 20 01 18.71 -55 52 38.5 u D90
2012-05-21 17:55:27 C 20 01 18.13 -55 52 25.9 u D90
2012-05-21 18:08:30 C 20 01 17.63 -55 52 12.5 u D90
2012-05-21 19:45:16 C 20 01 13.41 -55 50 35.8 r E12
2012-05-22 05:40:27 C 20 00 55.20 -55 40 37.9 o 807
2012-05-22 05:49:08 C 20 00 54.83 -55 40 29.5 o 807
2012-05-22 05:57:48 C 20 00 54.48 -55 40 21.1 o 807
2012-05-22 13:06:38 C 20 00 39.75 -55 33 02.7 r E12
2012-05-22 16:25:34 C 20 00 31.60 -55 29 47.9 u D90
2012-05-22 16:38:37 C 20 00 31.07 -55 29 35.0 u D90
2012-05-22 16:51:38 C 20 00 30.45 -55 29 22.1 u D90
2012-05-22 19:39:46 C 20 00 22.63 -55 26 33.0 r E12
2012-05-22 19:44:28 C 20 00 22.41 -55 26 27.7 r E12
2012-05-23 05:48:34 C 20 00 01.26 -55 16 10.3 o 807
2012-05-23 05:54:23 C 20 00 01.00 -55 16 04.7 o 807
2012-05-23 06:00:14 C 20 00 00.73 -55 15 58.9 o 807
2012-05-23 06:06:02 C 20 00 00.47 -55 15 53.2 o 807
2012-05-23 12:42:47 C 19 59 45.27 -55 08 58.1 r E12
2012-05-23 12:51:41 C 19 59 44.88 -55 08 49.5 r E12
2012-05-23 12:54:59 C 19 59 44.19 -55 08 47.2 o 474
2012-05-23 12:59:04 C 19 59 44.05 -55 08 43.2 o 474
2012-05-23 13:04:08 C 19 59 43.81 -55 08 38.0 o 474
2012-05-23 14:21:16 C 19 59 40.95 -55 07 22.1 u E10
2012-05-23 14:24:36 C 19 59 40.79 -55 07 18.7 u E10
2012-05-24 05:44:41 C 19 59 01.78 -54 51 28.2 o 807
2012-05-24 05:49:40 C 19 59 01.55 -54 51 23.1 o 807
2012-05-24 05:54:37 C 19 59 01.32 -54 51 18.3 o 807
2012-05-24 05:59:34 C 19 59 01.07 -54 51 13.2 o 807
2012-05-28 05:24:06 C 19 54 08.65 -53 08 03.2 o 807
2012-05-28 05:29:58 C 19 54 08.26 -53 07 56.8 o 807
2012-05-28 05:35:49 C 19 54 07.89 -53 07 50.5 o 807
2012-05-28 05:41:39 C 19 54 07.51 -53 07 44.3 o 807
2012-05-31 05:07:48 C 19 49 37.12 -51 45 11.9 o 807
2012-05-31 05:12:50 C 19 49 36.74 -51 45 06.0 o 807