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
2011-10-04 19:59:32 C 20 52 36.85 +24 00 35.8 c A24
2011-10-04 20:23:04 C 20 52 40.85 +23 59 57.5 c A24
2011-10-04 20:48:10 C 20 52 45.32 +23 59 19.6 c A24
2011-10-11 02:22:59 C 21 19 25.47 +20 01 16.4 o H21
2011-10-11 02:30:33 C 21 19 26.75 +20 01 04.4 o H21
2011-10-11 02:45:40 C 21 19 29.29 +20 00 40.6 o H21
2011-10-11 02:52:13 C 21 19 30.39 +20 00 30.5 o H21
2011-10-21 05:17:21 C 21 59 24.64 +13 59 58.4 r 703
2011-10-21 05:29:34 C 21 59 26.52 +13 59 42.8 r 703
2011-10-21 05:41:48 C 21 59 28.35 +13 59 25.9 r 703
2011-10-21 05:54:08 C 21 59 30.19 +13 59 08.8 r 703
2011-11-02 01:46:13 C 22 40 29.37 +08 23 07.7 o H21
2011-11-02 01:53:46 C 22 40 30.37 +08 23 00.0 o H21
2011-11-02 02:01:07 C 22 40 31.32 +08 22 52.7 o H21
2011-11-02 02:07:21 C 22 40 32.13 +08 22 46.8 o H21
2011-11-02 02:12:32 C 22 40 32.83 +08 22 41.4 o H21
2011-11-11 03:05:57 C 23 08 00.86 +05 20 50.3 t H21
2011-11-11 03:14:41 C 23 08 01.87 +05 20 43.8 t H21
2011-11-12 02:39:25 C 23 10 49.32 +05 04 47.5 o H21
2011-11-12 02:50:13 C 23 10 50.59 +05 04 39.9 o H21
2011-11-12 03:01:16 C 23 10 51.85 +05 04 32.8 o H21
2018-05-22 10:20:38 C 22 25 30.60 +15 47 46.5 U G96
2018-05-22 10:28:04 C 22 25 31.79 +15 47 56.5 U G96
2018-05-22 10:42:57 C 22 25 34.06 +15 48 16.9 U G96
2018-06-21 10:03:56 C 00 19 11.94 +29 13 51.0 U G96
2018-06-21 10:10:57 C 00 19 13.08 +29 13 57.7 U G96
2018-06-21 10:17:58 C 00 19 14.14 +29 14 03.1 U G96
2018-06-21 10:25:00 C 00 19 15.25 +29 14 08.5 U G96
2018-11-02 08:40:14 C 03 52 42.431 +12 45 50.68 U F52
2018-11-02 08:58:35 C 03 52 41.361 +12 45 33.60 U F52
2018-11-02 09:16:54 C 03 52 40.278 +12 45 16.54 U F52
2018-11-02 10:09:37 C 03 52 36.65 +12 44 25.0 V G96
2018-11-02 10:16:57 C 03 52 36.24 +12 44 18.2 V G96
2018-11-02 10:24:15 C 03 52 35.81 +12 44 10.9 V G96
2018-11-02 10:31:33 C 03 52 35.36 +12 44 04.3 V G96
2018-11-03 01:25:52 C 03 51 45.22 +12 30 08.3 19.7 q J43
2018-11-03 01:38:16 C 03 51 44.50 +12 29 57.1 19.9 q J43
2018-11-03 01:50:43 C 03 51 43.74 +12 29 45.3 20.0 q J43
2018-11-03 02:03:08 C 03 51 43.02 +12 29 33.2 19.9 q J43
2018-11-08 17:51:00 C 03 43 57.71 +10 27 07.3 q D29
2018-11-08 18:11:22 C 03 43 56.43 +10 26 49.8 q D29
2018-11-08 18:31:44 C 03 43 55.26 +10 26 31.1 q D29
2018-11-10 08:12:26 C 03 41 46.86 +09 54 22.0 V G96
2018-11-10 08:19:59 C 03 41 46.45 +09 54 15.6 V G96
2018-11-10 08:27:32 C 03 41 46.04 +09 54 09.1 V G96
2018-11-10 08:35:06 C 03 41 45.55 +09 54 03.0 V G96
2018-11-10 11:39:07 C 03 41 35.113 +09 51 30.13 U F52
2018-11-10 11:57:02 C 03 41 34.054 +09 51 15.13 U F52
2018-11-10 12:14:48 C 03 41 32.999 +09 51 00.17 U F52
2018-11-10 12:32:33 C 03 41 31.946 +09 50 45.18 U F52