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
2012-05-31 05:17:51 C 19 49 36.38 -51 45 00.3 o 807
2012-05-31 05:22:51 C 19 49 36.00 -51 44 54.6 o 807
2012-06-02 04:07:17 C 19 46 19.11 -50 48 15.6 o 807
2012-06-02 04:22:17 C 19 46 17.98 -50 47 57.8 o 807
2012-06-02 04:35:15 C 19 46 16.92 -50 47 42.4 o 807
2012-06-05 05:20:01 C 19 40 42.99 -49 15 26.7 o 807
2012-06-05 05:27:29 C 19 40 42.39 -49 15 16.9 o 807
2012-06-05 05:34:55 C 19 40 41.71 -49 15 07.6 o 807
2012-06-06 06:21:17 C 19 38 41.49 -48 42 33.1 o 807
2012-06-06 06:27:30 C 19 38 40.93 -48 42 25.0 o 807
2012-06-06 06:33:40 C 19 38 40.36 -48 42 16.4 o 807
2012-06-20 04:06:49 C 19 09 28.80 -40 33 29.2 u 807
2012-06-20 04:10:19 C 19 09 28.47 -40 33 23.9 u 807
2012-06-20 04:14:03 C 19 09 28.14 -40 33 18.0 u 807
2012-06-20 04:17:47 C 19 09 27.78 -40 33 12.2 u 807
2012-06-20 04:21:29 C 19 09 27.45 -40 33 06.6 u 807
2012-06-21 07:59:35 C 19 07 02.32 -39 49 37.2 u 807
2012-06-21 08:05:08 C 19 07 01.80 -39 49 28.7 u 807
2012-06-21 08:26:18 C 19 06 59.87 -39 48 54.7 u 807
2012-06-21 09:01:37 C 19 06 56.69 -39 47 58.0 u 807
2012-06-21 09:20:32 C 19 06 54.98 -39 47 27.2 u 807
2012-06-22 02:18:06 C 19 05 30.04 -39 20 40.7 u 807
2012-06-22 02:23:04 C 19 05 29.57 -39 20 33.0 u 807
2012-06-22 02:28:02 C 19 05 29.12 -39 20 25.4 u 807
2012-06-22 02:33:01 C 19 05 28.70 -39 20 17.6 u 807
2012-06-22 02:37:58 C 19 05 28.23 -39 20 10.0 u 807
2012-06-27 07:23:17 C 18 55 16.46 -36 02 40.7 u 807
2012-06-27 07:25:46 C 18 55 16.25 -36 02 36.8 u 807
2012-06-27 07:28:16 C 18 55 16.04 -36 02 32.8 u 807
2012-06-27 07:30:45 C 18 55 15.83 -36 02 28.8 u 807
2012-06-27 07:33:15 C 18 55 15.62 -36 02 24.8 u 807
2012-07-01 07:39:25 C 18 48 13.02 -33 32 33.5 u 807
2012-07-01 07:45:38 C 18 48 12.54 -33 32 23.9 u 807
2012-07-01 07:51:49 C 18 48 12.09 -33 32 14.1 u 807
2012-07-07 04:48:17 C 18 39 22.77 -30 02 38.3 u 807
2012-07-07 04:53:19 C 18 39 22.49 -30 02 31.1 u 807
2012-07-07 04:58:20 C 18 39 22.18 -30 02 24.2 u 807
2012-07-07 05:05:13 C 18 39 21.77 -30 02 13.9 u 807
2012-07-07 05:12:11 C 18 39 21.31 -30 02 03.9 u 807
2012-07-07 05:17:19 C 18 39 21.01 -30 01 56.6 u 807
2012-07-17 05:24:08 C 18 28 42.30 -24 49 04.7 u H21
2012-07-17 05:37:20 C 18 28 41.80 -24 48 49.7 u H21
2012-07-26 01:30:19 C 18 23 50.72 -21 07 24.3 u 807
2012-07-26 01:42:08 C 18 23 50.48 -21 07 13.1 u 807
2014-11-26 08:35:45 C 07 28 21.50 +31 27 25.4 u H21
2014-11-26 09:04:34 C 07 28 20.93 +31 27 23.0 u H21
2014-11-26 09:28:35 C 07 28 20.50 +31 27 21.3 u H21
2014-12-14 12:41:04 C 07 13 38.08 +30 37 31.0 o 291
2014-12-14 12:53:33 C 07 13 37.42 +30 37 29.1 o 291
2014-12-14 13:06:03 C 07 13 36.79 +30 37 26.8 o 291