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
2022-06-02 12:21:06 C 21 03 35.117 -30 41 03.13 U F52
2022-06-02 12:35:47 C 21 03 34.760 -30 40 50.26 U F52
2022-06-02 12:50:25 C 21 03 34.391 -30 40 37.50 U F52
2022-06-08 13:38:52 C 20 59 18.543 -28 31 31.75 U F52
2022-06-08 13:49:49 C 20 59 18.084 -28 31 22.00 U F52
2022-06-08 14:00:47 C 20 59 17.625 -28 31 12.19 U F52
2022-06-08 14:11:47 C 20 59 17.171 -28 31 02.36 U F52
2022-06-10 13:22:22 C 20 57 23.992 -27 48 46.13 U F52
2022-06-10 13:37:03 C 20 57 23.300 -27 48 33.02 U F52
2022-06-10 13:51:47 C 20 57 22.608 -27 48 19.92 U F52
2022-06-10 14:06:26 C 20 57 21.917 -27 48 06.75 U F52
2022-06-21 11:07:29 C 20 42 59.099 -23 53 12.15 U F52
2022-06-21 11:24:58 C 20 42 57.877 -23 52 56.65 U F52
2022-06-21 11:42:34 C 20 42 56.633 -23 52 40.94 U F52
2022-06-21 12:00:03 C 20 42 55.401 -23 52 25.38 U F52
2022-06-23 12:02:36 C 20 39 38.896 -23 09 18.95 U F52
2022-06-23 12:16:21 C 20 39 37.877 -23 09 06.62 U F52
2022-06-23 12:30:08 C 20 39 36.863 -23 08 54.41 U F52
2022-06-23 19:06:58 C 20 39 08.938 -23 02 49.34 V P07
2022-06-23 19:31:21 C 20 39 07.070 -23 02 27.38 V P07
2022-06-23 19:37:53 C 20 39 06.612 -23 02 21.88 V P07
2022-06-23 20:52:42 C 20 39 00.998 -23 01 13.80 V P07
2022-07-02 10:50:51 C 20 23 27.691 -20 00 03.32 U F52
2022-07-02 11:04:39 C 20 23 26.543 -19 59 51.41 U F52
2022-07-02 11:07:25 C 20 23 26.301 -19 59 49.23 U F52
2022-07-02 11:21:11 C 20 23 25.173 -19 59 37.66 U F52
2022-07-02 11:23:55 C 20 23 24.942 -19 59 34.98 U F52
2022-07-02 11:37:40 C 20 23 23.806 -19 59 23.31 U F52
2022-07-02 11:40:24 C 20 23 23.570 -19 59 21.03 U F52
2022-07-07 23:42:36 C 20 12 50.30 -18 08 35.2 X C95
2022-07-08 00:08:15 C 20 12 48.23 -18 08 14.4 X C95
2024-12-23 09:19:18 C 07 33 58.709 +26 10 33.75 X F52
2024-12-23 09:57:42 C 07 33 56.537 +26 10 24.46 X F52
2024-12-23 10:16:59 C 07 33 55.446 +26 10 19.70 X F52
2024-12-30 07:37:57 C 07 24 00.824 +25 25 07.54 V G96
2024-12-30 07:45:23 C 07 24 00.306 +25 25 05.48 V G96
2024-12-30 07:52:50 C 07 23 59.809 +25 25 03.29 V G96
2024-12-30 08:01:43 C 07 23 59.219 +25 25 00.62 V G96
2025-01-02 08:59:15 C 07 19 09.048 +25 02 24.11 X F52
2025-01-02 09:16:36 C 07 19 07.820 +25 02 18.50 X F52
2025-01-02 09:33:57 C 07 19 06.606 +25 02 13.16 X F52
2025-01-19 05:35:09 C 06 50 15.011 +22 26 26.23 V G96
2025-01-19 05:44:11 C 06 50 14.356 +22 26 22.56 V G96
2025-01-19 05:51:37 C 06 50 13.816 +22 26 19.61 V G96
2025-01-19 05:59:01 C 06 50 13.290 +22 26 16.15 V G96
2025-01-20 06:38:18 C 06 48 30.346 +22 15 21.84 X F52
2025-01-20 06:45:37 C 06 48 29.820 +22 15 18.63 X F52
2025-01-20 06:52:57 C 06 48 29.304 +22 15 15.45 X F52
2025-01-20 07:00:17 C 06 48 28.783 +22 15 12.11 X F52