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
2015-01-23 06:45:26 C 06 11 22.056 +25 30 17.83 L F51
2015-01-23 07:05:36 C 06 11 20.853 +25 30 08.47 L F51
2015-01-23 07:25:41 C 06 11 19.651 +25 29 59.49 L F51
2022-01-04 12:33:46 C 12 45 30.64 -24 16 21.5 o 691
2022-01-04 12:45:52 C 12 45 32.04 -24 16 40.0 o 691
2022-01-04 12:57:58 C 12 45 33.45 -24 16 57.1 o 691
2022-01-05 12:21:50 C 12 48 21.46 -24 51 28.7 o 291
2022-01-05 12:31:33 C 12 48 22.63 -24 51 43.3 o 291
2022-01-05 12:41:16 C 12 48 23.74 -24 51 57.5 o 291
2022-04-08 17:30:29 S 19 45 32.45 -49 04 12.8 L C51
2022-04-08 20:38:27 S 19 45 59.91 -49 02 05.4 L C51
2022-04-08 23:46:35 S 19 46 27.35 -48 59 57.5 L C51
2022-04-09 02:54:32 S 19 46 54.56 -48 57 49.6 L C51
2022-04-09 06:02:29 S 19 47 21.82 -48 55 41.2 L C51
2022-04-09 09:10:37 S 19 47 48.926 -48 53 31.27 L C51
2022-04-09 12:18:34 S 19 48 15.94 -48 51 22.3 L C51
2022-04-09 15:26:31 S 19 48 42.88 -48 49 12.9 L C51
2022-04-09 18:34:39 S 19 49 09.761 -48 47 03.23 L C51
2022-04-09 20:08:43 S 19 49 23.15 -48 45 57.6 L C51
2022-04-09 21:42:36 S 19 49 36.53 -48 44 52.5 L C51
2022-04-09 23:16:40 S 19 49 49.88 -48 43 47.3 L C51
2022-04-10 00:50:33 S 19 50 03.14 -48 42 42.3 L C51
2022-04-10 00:50:44 S 19 50 03.21 -48 42 41.5 L C51
2022-04-10 02:24:38 S 19 50 16.53 -48 41 36.7 L C51
2022-04-10 03:58:41 S 19 50 29.79 -48 40 30.8 L C51
2022-04-10 05:32:46 S 19 50 43.15 -48 39 25.1 L C51
2022-04-10 07:06:38 S 19 50 56.29 -48 38 19.8 L C51
2022-04-10 08:40:42 S 19 51 09.571 -48 37 13.80 L C51
2022-04-10 10:14:46 S 19 51 22.814 -48 36 08.03 L C51
2022-04-10 11:48:40 S 19 51 35.85 -48 35 02.3 L C51
2022-04-10 13:22:43 S 19 51 49.06 -48 33 55.7 L C51
2022-04-10 14:56:48 S 19 52 02.25 -48 32 50.1 L C51
2022-04-10 16:30:40 S 19 52 15.32 -48 31 43.7 L C51
2022-04-10 18:04:45 S 19 52 28.42 -48 30 37.1 L C51
2022-04-10 19:38:48 S 19 52 41.52 -48 29 30.9 L C51
2022-04-11 00:20:50 S 19 53 20.56 -48 26 11.1 L C51
2022-04-11 03:28:03 S 19 53 46.44 -48 23 59.0 L C51
2022-04-11 06:36:11 S 19 54 12.32 -48 21 45.0 L C51
2022-04-11 09:44:08 S 19 54 38.011 -48 19 30.86 L C51
2022-04-11 12:52:05 S 19 55 03.76 -48 17 16.9 L C51
2022-04-11 12:52:16 S 19 55 03.78 -48 17 16.3 L C51
2022-04-11 16:00:13 S 19 55 29.35 -48 15 02.2 L C51
2022-04-11 19:08:10 S 19 55 54.835 -48 12 47.09 L C51
2022-04-11 22:16:07 S 19 56 20.27 -48 10 31.5 L C51
2022-04-11 22:16:18 S 19 56 20.32 -48 10 31.5 L C51
2022-04-23 13:09:15 S 20 28 31.625 -44 33 42.55 L C51
2022-05-26 13:57:48 C 21 05 27.552 -33 08 23.08 U F52
2022-05-26 14:08:27 C 21 05 27.495 -33 08 13.74 U F52
2022-05-26 14:18:28 C 21 05 27.431 -33 08 04.91 U F52
2022-06-02 12:06:26 C 21 03 35.479 -30 41 15.89 U F52