2011 KN9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4817741952 ± 2.99e-08
Semi-major axis (a)2.2721035975 AU ± 1.26e-08
Inclination (i)19.28881090° ± 6.03e-06
Long. of Asc. Node (Ω)218.58158818° ± 1.34e-05
Arg. of Perihelion (ω)98.63900510° ± 2.08e-05
Mean Anomaly (M)59.47292978° ± 1.51e-05
Mean Motion (n)0.2877862778°/day ± 2.39e-09
Perihelion dist (q)1.17746272 AU ± 6.83e-08
Aphelion dist (Q)3.36674448 AU ± 7.05e-08
Orbital Period3.42485504 yr ± 2.85e-08
Physical Parameters
H (abs. magnitude)18.64
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.386″
Uncertainty0
Orbit TypeAmor
MOID0.364120 AU
Observations Used294
Oppositions22
Arc Total1994-2025
First Observation Used1994-12-01
Last Observation Used2025-12-24
Observations (307)
Date Type RA Dec Mag Band Observatory
2011-06-30 06:15:11 C 16 52 13.83 +30 36 25.1 o H21
2011-06-30 06:25:05 C 16 52 13.68 +30 36 37.7 o H21
2011-07-02 03:39:23 C 16 51 52.55 +31 33 17.3 u I27
2011-07-02 03:44:45 C 16 51 52.50 +31 33 23.3 u I27
2011-07-04 03:59:49 C 16 51 38.10 +32 30 18.5 u I27
2011-07-04 04:01:13 C 16 51 38.09 +32 30 20.6 u I27
2011-07-04 04:02:38 C 16 51 38.07 +32 30 22.4 u I27
2011-07-04 04:12:18 C 16 51 38.00 +32 30 33.1 u I27
2011-07-09 02:32:35 C 16 51 47.03 +34 35 43.0 o H21
2011-07-09 02:39:17 C 16 51 47.05 +34 35 49.8 o H21
2011-07-09 02:45:36 C 16 51 47.05 +34 35 56.0 o H21
2011-07-09 02:51:37 C 16 51 47.06 +34 36 01.9 o H21
2011-07-10 04:29:10 C 16 51 57.19 +35 00 29.6 t H21
2011-07-10 04:38:37 C 16 51 57.25 +35 00 38.3 t H21
2011-07-10 04:48:37 C 16 51 57.26 +35 00 47.8 t H21
2011-07-10 04:58:03 C 16 51 57.29 +35 00 56.3 t H21
2011-07-11 03:54:38 C 16 52 10.00 +35 22 04.5 o H21
2011-07-11 04:01:38 C 16 52 10.05 +35 22 10.6 o H21
2011-07-11 04:09:53 C 16 52 10.09 +35 22 18.5 o H21
2011-07-12 02:56:35 C 16 52 25.71 +35 42 34.1 t H21
2011-07-12 03:05:41 C 16 52 25.77 +35 42 41.8 t H21
2011-07-12 03:14:47 C 16 52 25.80 +35 42 49.8 t H21
2011-07-12 03:23:54 C 16 52 25.81 +35 42 57.9 t H21
2011-07-13 10:18:53 C 16 52 49.960 +36 09 25.37 L F51
2011-07-13 10:34:16 C 16 52 50.104 +36 09 37.78 L F51
2011-07-13 10:51:12 C 16 52 50.272 +36 09 51.35 L F51
2011-07-13 11:05:10 C 16 52 50.416 +36 10 02.45 L F51
2011-07-15 04:03:18 C 16 53 32.58 +36 43 00.3 t H21
2011-07-15 04:13:39 C 16 53 32.74 +36 43 08.2 t H21
2011-07-15 04:24:00 C 16 53 32.82 +36 43 16.3 t H21
2011-07-15 04:34:21 C 16 53 32.94 +36 43 24.4 t H21
2011-07-16 04:04:49 C 16 54 01.06 +37 01 23.1 o H21
2011-07-16 04:06:29 C 16 54 01.08 +37 01 24.1 o H21
2011-07-16 04:09:50 C 16 54 01.13 +37 01 26.5 o H21
2011-07-16 04:13:09 C 16 54 01.18 +37 01 29.0 o H21
2011-07-16 04:14:16 C 16 54 01.20 +37 01 29.8 o H21
2011-07-17 03:32:04 C 16 54 32.17 +37 18 36.6 t H21
2011-07-17 03:39:17 C 16 54 32.29 +37 18 42.4 t H21
2011-07-17 03:48:58 C 16 54 32.47 +37 18 49.0 t H21
2011-07-17 03:57:37 C 16 54 32.64 +37 18 55.0 t H21
2011-08-03 02:45:11 C 17 12 30.72 +40 37 22.3 o H21
2011-08-03 02:50:17 C 17 12 31.04 +40 37 23.5 o H21
2011-08-03 02:55:04 C 17 12 31.31 +40 37 24.8 o H21
2011-08-03 03:01:17 C 17 12 31.69 +40 37 26.3 o H21
2011-08-05 02:00:09 C 17 15 48.39 +40 48 59.2 o H21
2011-08-05 02:04:40 C 17 15 48.69 +40 49 00.3 o H21
2011-08-05 02:09:11 C 17 15 49.00 +40 49 01.5 o H21
2011-08-05 02:13:43 C 17 15 49.32 +40 49 02.4 o H21
2011-08-11 02:42:02 C 17 27 32.28 +41 11 02.0 o H21
2011-08-11 02:54:01 C 17 27 33.29 +41 11 03.5 o H21