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
1994-12-01 03:06:12 C 02 43 44.04 +04 50 10.9 i 691
1994-12-01 03:45:00 C 02 43 43.26 +04 49 54.1 i 691
1994-12-01 04:21:11 C 02 43 42.56 +04 49 38.2 i 691
2011-05-24 10:58:03 C 17 07 16.60 +04 39 32.3 r 703
2011-05-24 11:01:25 C 17 07 16.60 +04 39 39.0 r 703
2011-05-24 11:04:44 C 17 07 16.57 +04 39 44.2 r 703
2011-05-24 11:08:03 C 17 07 16.42 +04 39 50.1 r 703
2011-05-24 14:08:40 C 17 07 14.907 +04 45 33.45 t 568
2011-05-24 14:10:44 C 17 07 14.883 +04 45 37.31 t 568
2011-05-24 14:12:46 C 17 07 14.860 +04 45 41.12 t 568
2011-05-24 23:07:53 C 17 07 11.08 +05 02 23.7 u 198
2011-05-24 23:09:25 C 17 07 11.06 +05 02 26.5 u 198
2011-05-24 23:11:43 C 17 07 10.99 +05 02 30.8 u 198
2011-05-24 23:28:16 C 17 07 10.96 +05 03 00.3 u J95
2011-05-24 23:32:17 C 17 07 10.90 +05 03 08.0 u J95
2011-05-24 23:36:57 C 17 07 10.83 +05 03 16.9 u J95
2011-05-25 00:29:41 C 17 07 10.10 +05 04 57.7 v 204
2011-05-25 00:45:28 C 17 07 09.92 +05 05 27.7 v 204
2011-05-25 07:06:28 C 17 07 06.32 +05 17 30.3 r H21
2011-05-25 07:11:16 C 17 07 06.29 +05 17 38.8 r H21
2011-05-25 07:14:46 C 17 07 06.27 +05 17 45.3 r H21
2011-05-25 22:47:13 C 17 06 57.50 +05 47 14.7 c 104
2011-05-25 22:52:46 C 17 06 57.46 +05 47 25.0 c 104
2011-05-25 22:58:18 C 17 06 57.38 +05 47 35.6 c 104
2011-05-25 23:13:38 C 17 06 57.12 +05 48 04.2 o 046
2011-05-25 23:18:17 C 17 06 57.04 +05 48 14.0 o 046
2011-05-25 23:20:30 C 17 06 56.98 +05 48 15.9 o 046
2011-05-25 23:22:41 C 17 06 56.97 +05 48 20.6 o 046
2011-05-25 23:27:08 C 17 06 56.92 +05 48 29.4 o 046
2011-05-25 23:28:18 C 17 06 57.11 +05 48 32.2 v I93
2011-05-25 23:33:44 C 17 06 56.82 +05 48 42.4 o 046
2011-05-25 23:35:56 C 17 06 56.88 +05 48 46.4 o 046
2011-05-25 23:42:57 C 17 06 56.90 +05 49 00.1 v I93
2011-05-25 23:53:21 C 17 06 56.64 +05 49 18.7 u 510
2011-05-25 23:57:32 C 17 06 56.70 +05 49 27.9 v I93
2011-05-26 00:04:41 C 17 06 56.48 +05 49 40.3 u 510
2011-05-26 00:16:01 C 17 06 56.34 +05 50 02.1 u 510
2011-05-26 07:34:25 C 17 06 51.77 +06 04 02.9 18.7 c 704
2011-05-26 07:50:36 C 17 06 51.63 +06 04 34.1 18.8 c 704
2011-05-26 08:05:56 C 17 06 50.81 +06 05 19.3 o 807
2011-05-26 08:12:47 C 17 06 50.72 +06 05 32.3 o 807
2011-05-26 08:16:16 C 17 06 50.67 +06 05 39.0 o 807
2011-05-26 08:23:00 C 17 06 51.12 +06 05 35.2 18.7 c 704
2011-05-27 08:09:10 C 17 06 35.31 +06 51 07.6 19.1 c 704
2011-05-27 08:12:52 C 17 06 35.17 +06 51 14.1 18.7 c 704
2011-05-27 08:24:42 C 17 06 35.05 +06 51 36.6 19.3 c 704
2011-05-27 08:28:21 C 17 06 34.91 +06 51 44.0 18.6 c 704
2011-05-27 08:40:13 C 17 06 34.85 +06 52 06.7 19.0 c 704
2011-05-27 08:43:52 C 17 06 34.69 +06 52 13.8 19.0 c 704
2011-05-27 08:55:44 C 17 06 34.55 +06 52 36.6 18.6 c 704