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
2011-06-12 05:30:41 C 16 59 47.61 +19 07 10.5 u 448
2011-06-12 08:26:53 C 16 59 43.00 +19 12 37.6 u 703
2011-06-12 08:36:49 C 16 59 42.79 +19 12 56.5 u 703
2011-06-12 08:46:48 C 16 59 42.50 +19 13 13.3 u 703
2011-06-16 04:19:25 C 16 57 47.66 +21 58 18.5 o H21
2011-06-16 04:24:55 C 16 57 47.53 +21 58 28.3 o H21
2011-06-16 04:30:51 C 16 57 47.37 +21 58 38.9 o H21
2011-06-16 04:37:14 C 16 57 47.21 +21 58 49.6 o H21
2011-06-19 04:48:15 C 16 56 19.26 +24 02 33.5 o H21
2011-06-19 04:57:05 C 16 56 19.05 +24 02 48.3 o H21
2011-06-19 05:06:30 C 16 56 18.82 +24 03 04.0 o H21
2011-06-19 21:42:47 C 16 55 59.69 +24 30 34.9 c A24
2011-06-19 21:44:53 C 16 55 59.67 +24 30 37.9 c A24
2011-06-19 22:50:00 C 16 55 58.03 +24 32 26.1 c A24
2011-06-19 22:52:05 C 16 55 57.97 +24 32 29.4 c A24
2011-06-20 21:24:12 C 16 55 32.62 +25 09 15.4 c A24
2011-06-20 21:26:17 C 16 55 32.57 +25 09 18.8 c A24
2011-06-21 05:03:07 C 16 55 23.73 +25 21 36.8 o H21
2011-06-21 05:06:39 C 16 55 23.65 +25 21 42.4 o H21
2011-06-21 05:10:10 C 16 55 23.56 +25 21 48.1 o H21
2011-06-21 05:13:18 C 16 55 23.49 +25 21 53.2 o H21
2011-06-21 05:15:55 C 16 55 23.44 +25 21 57.2 o H21
2011-06-23 21:34:48 C 16 54 15.82 +27 02 21.2 c A24
2011-06-23 21:36:52 C 16 54 15.81 +27 02 23.6 c A24
2011-06-24 23:12:44 C 16 53 50.63 +27 40 42.8 c A24
2011-06-24 23:14:48 C 16 53 50.61 +27 40 45.6 c A24
2011-06-25 00:08:09 C 16 53 49.51 +27 42 03.6 u B67
2011-06-25 00:18:40 C 16 53 49.31 +27 42 18.8 u B67
2011-06-25 00:28:20 C 16 53 49.13 +27 42 32.9 u B67
2011-06-25 21:48:41 C 16 53 30.55 +28 13 44.7 c A24
2011-06-25 21:50:45 C 16 53 30.50 +28 13 48.2 c A24
2011-06-25 22:50:44 C 16 53 29.34 +28 15 14.2 c A24
2011-06-25 22:52:52 C 16 53 29.31 +28 15 17.4 c A24
2011-06-26 20:45:39 C 16 53 11.32 +28 46 30.3 c A48
2011-06-26 20:53:51 C 16 53 11.15 +28 46 41.6 c A48
2011-06-26 21:02:04 C 16 53 10.96 +28 46 53.6 c A48
2011-06-26 21:10:16 C 16 53 10.89 +28 47 05.4 c A48
2011-06-26 22:59:02 C 16 53 08.88 +28 49 38.3 c A24
2011-06-26 23:01:07 C 16 53 08.90 +28 49 41.1 c A24
2011-06-27 22:07:54 C 16 52 51.11 +29 21 47.9 c A24
2011-06-27 22:09:59 C 16 52 51.03 +29 21 50.7 c A24
2011-06-27 23:07:49 C 16 52 50.10 +29 23 10.1 c A24
2011-06-27 23:09:54 C 16 52 50.08 +29 23 13.1 c A24
2011-06-29 03:59:37 C 16 52 30.53 +30 02 06.7 o H26
2011-06-29 04:02:10 C 16 52 30.47 +30 02 10.1 o H26
2011-06-29 04:07:18 C 16 52 30.41 +30 02 16.8 o H26
2011-06-29 04:09:47 C 16 52 30.38 +30 02 19.6 o H26
2011-06-30 06:02:29 C 16 52 14.01 +30 36 08.8 o H21
2011-06-30 06:07:18 C 16 52 13.93 +30 36 15.0 o H21
2011-06-30 06:11:14 C 16 52 13.88 +30 36 20.1 o H21