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
2011-05-27 08:59:27 C 17 06 34.44 +06 52 43.2 19.1 c 704
2011-05-28 07:36:08 C 17 06 18.29 +07 36 19.2 19.0 c 704
2011-05-28 07:38:30 C 17 06 18.25 +07 36 24.3 18.9 c 704
2011-05-28 07:51:43 C 17 06 17.91 +07 36 49.9 18.8 c 704
2011-05-28 08:07:19 C 17 06 17.78 +07 37 20.4 19.0 c 704
2011-05-28 08:09:42 C 17 06 17.68 +07 37 24.7 19.0 c 704
2011-05-28 08:22:59 C 17 06 17.47 +07 37 50.2 19.6 c 704
2011-05-28 08:25:23 C 17 06 17.40 +07 37 55.1 19.1 c 704
2011-05-28 08:38:57 C 17 06 17.24 +07 38 21.8 19.1 c 704
2011-05-28 08:41:21 C 17 06 17.10 +07 38 25.0 18.7 c 704
2011-05-29 23:13:22 C 17 05 46.21 +08 53 07.9 c A24
2011-05-29 23:15:26 C 17 05 46.22 +08 53 11.9 c A24
2011-05-30 00:21:10 C 17 05 44.96 +08 55 19.6 c A24
2011-05-30 07:47:52 C 17 05 38.59 +09 09 54.0 19.0 c 704
2011-05-30 07:53:05 C 17 05 38.12 +09 10 02.0 o H21
2011-05-30 07:57:34 C 17 05 38.04 +09 10 10.6 o H21
2011-05-30 08:01:40 C 17 05 37.96 +09 10 18.6 o H21
2011-05-30 08:04:41 C 17 05 38.18 +09 10 27.1 19.1 c 704
2011-05-30 08:06:27 C 17 05 37.88 +09 10 27.9 o H21
2011-05-30 08:21:33 C 17 05 37.89 +09 10 59.4 19.1 c 704
2011-05-30 08:37:41 C 17 05 37.58 +09 11 30.7 19.0 c 704
2011-05-30 08:53:56 C 17 05 37.29 +09 12 01.9 19.3 c 704
2011-05-30 20:52:58 C 17 05 27.35 +09 35 19.1 r A17
2011-05-30 21:04:13 C 17 05 27.19 +09 35 42.5 r A17
2011-05-30 21:15:27 C 17 05 27.00 +09 36 04.3 r A17
2011-05-31 00:43:51 C 17 05 23.12 +09 42 52.3 u B67
2011-05-31 01:03:45 C 17 05 22.73 +09 43 31.1 u B67
2011-05-31 01:22:28 C 17 05 22.38 +09 44 07.5 u B67
2011-05-31 06:47:12 C 17 05 17.60 +09 54 44.3 o H21
2011-05-31 06:51:47 C 17 05 17.52 +09 54 53.3 o H21
2011-05-31 06:59:30 C 17 05 17.36 +09 55 08.5 o H21
2011-06-04 08:11:31 C 17 03 36.95 +13 05 16.4 o H21
2011-06-04 08:14:32 C 17 03 36.86 +13 05 22.3 o H21
2011-06-04 08:18:22 C 17 03 36.79 +13 05 29.6 o H21
2011-06-04 08:21:48 C 17 03 36.70 +13 05 36.5 o H21
2011-06-04 08:27:50 C 17 03 36.57 +13 05 48.2 o H21
2011-06-06 23:01:41 C 17 02 24.66 +15 07 22.8 c A24
2011-06-06 23:02:43 C 17 02 24.63 +15 07 24.6 c A24
2011-06-07 08:11:21 C 17 02 13.39 +15 25 07.6 o 691
2011-06-07 08:37:00 C 17 02 12.75 +15 25 57.1 o 691
2011-06-07 09:02:38 C 17 02 12.13 +15 26 46.3 o 691
2011-06-08 11:50:30 C 17 01 39.405 +16 18 18.34 L F51
2011-06-08 12:07:02 C 17 01 38.983 +16 18 49.81 L F51
2011-06-08 12:26:05 C 17 01 38.501 +16 19 26.11 L F51
2011-06-08 12:41:23 C 17 01 38.119 +16 19 55.20 L F51
2011-06-09 12:48:10 C 17 01 08.147 +17 05 52.68 L F51
2011-06-09 12:59:08 C 17 01 07.873 +17 06 13.43 L F51
2011-06-09 13:13:05 C 17 01 07.522 +17 06 39.67 L F51
2011-06-12 05:02:19 C 16 59 48.33 +19 06 18.1 u 448
2011-06-12 05:15:44 C 16 59 48.03 +19 06 42.8 u 448