665429 (2009 KT21)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3325651714 ± 1.22e-08
Semi-major axis (a)1.6705022611 AU ± 1.36e-09
Inclination (i)6.94165852° ± 2.41e-06
Long. of Asc. Node (Ω)230.82966531° ± 9.97e-06
Arg. of Perihelion (ω)244.55849738° ± 1.23e-05
Mean Anomaly (M)323.52460251° ± 4.81e-06
Mean Motion (n)0.4565009382°/day ± 5.55e-10
Perihelion dist (q)1.11495139 AU ± 2.04e-08
Aphelion dist (Q)2.22605313 AU ± 2.05e-08
Orbital Period2.15908928 yr ± 2.63e-09
Physical Parameters
H (abs. magnitude)19.92
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.146″
Uncertainty0
Orbit TypeAmor
MOID0.170377 AU
Observations Used225
Oppositions9
Arc Total2009-2026
First Observation Used2009-05-29
Last Observation Used2026-03-02
Observations (255)
Date Type RA Dec Mag Band Observatory
2011-04-12 06:21:38 C 12 32 08.77 -16 24 17.8 19.7 c 704
2011-04-12 06:38:54 C 12 32 08.31 -16 24 01.7 19.5 c 704
2011-04-12 06:59:52 C 12 32 07.73 -16 23 42.0 19.1 c 704
2012-08-24 09:08:32 C 00 55 42.34 +17 43 44.4 u H21
2012-08-24 09:26:37 C 00 55 42.40 +17 43 47.9 u H21
2012-08-24 09:44:43 C 00 55 42.42 +17 43 50.7 u H21
2012-10-08 07:14:29 c 00 20 53.619 +14 29 36.87 L F51
2012-10-08 07:35:24 c 00 20 52.331 +14 29 24.35 L F51
2012-10-08 07:56:18 c 00 20 51.039 +14 29 11.95 L F51
2012-10-08 08:17:14 c 00 20 49.736 +14 28 59.38 L F51
2012-11-07 02:38:42 C 23 50 20.43 +06 11 17.2 q 448
2012-11-07 03:50:15 C 23 50 19.07 +06 10 32.1 q 448
2012-11-07 05:04:22 C 23 50 17.78 +06 09 45.2 q 448
2012-12-05 01:39:53 C 00 02 49.59 +01 39 15.2 r G96
2012-12-05 01:47:32 C 00 02 49.99 +01 39 14.0 r G96
2012-12-05 01:55:13 C 00 02 50.31 +01 39 12.9 r G96
2012-12-05 02:02:54 C 00 02 50.67 +01 39 11.3 r G96
2022-05-27 07:31:59 C 16 54 34.488 -17 50 08.99 V V06
2022-05-27 07:37:20 C 16 54 34.135 -17 50 07.51 V V06
2022-05-27 07:40:01 C 16 54 33.944 -17 50 06.86 V V06
2022-06-06 09:25:49 C 16 38 51.769 -16 40 38.79 U F52
2022-06-06 09:36:05 C 16 38 51.087 -16 40 36.19 U F52
2022-06-06 09:46:18 C 16 38 50.422 -16 40 33.32 U F52
2022-06-06 09:56:32 C 16 38 49.782 -16 40 30.66 U F52
2023-10-15 13:35:47 C 07 50 42.986 +18 48 32.39 X F51
2023-10-15 13:37:49 C 07 50 43.303 +18 48 30.98 X F51
2023-10-15 13:54:31 C 07 50 46.058 +18 48 17.32 X F51
2023-10-15 13:56:32 C 07 50 46.369 +18 48 15.51 X F51
2023-10-15 14:14:33 C 07 50 49.350 +18 48 00.65 X F51
2023-10-15 14:16:37 C 07 50 49.710 +18 47 58.95 X F51
2023-10-15 14:34:33 C 07 50 52.653 +18 47 44.06 X F51
2023-11-18 14:39:56 C 10 04 08.292 +03 40 52.16 X F51
2023-11-18 14:46:28 C 10 04 09.288 +03 40 43.81 X F51
2023-11-18 14:53:01 C 10 04 10.281 +03 40 35.37 X F51
2023-11-18 14:59:32 C 10 04 11.304 +03 40 26.90 X F51
2024-01-17 12:52:25 C 13 20 43.382 -22 19 19.88 V G96
2024-01-17 12:59:15 C 13 20 44.110 -22 19 24.92 V G96
2024-01-17 13:06:05 C 13 20 44.884 -22 19 29.82 V G96
2024-01-17 13:12:54 C 13 20 45.593 -22 19 33.60 V G96
2024-02-15 15:03:09 C 14 24 40.534 -27 42 12.14 X F51
2024-02-15 15:15:17 C 14 24 41.264 -27 42 15.05 X F51
2024-02-15 15:27:26 C 14 24 42.037 -27 42 17.94 X F51
2024-02-15 15:39:33 C 14 24 42.793 -27 42 20.71 X F51
2024-04-17 07:56:07 C 14 14 11.724 -20 32 27.02 V G96
2024-04-17 08:03:28 C 14 14 11.242 -20 32 21.44 V G96
2024-04-17 08:10:50 C 14 14 10.799 -20 32 15.29 V G96
2024-04-17 08:18:11 C 14 14 10.338 -20 32 10.46 V G96
2024-04-18 11:17:37 C 14 12 35.615 -20 11 26.65 X F52
2024-04-18 11:30:49 C 14 12 34.789 -20 11 16.40 X F52
2024-04-18 11:44:00 C 14 12 33.954 -20 11 06.34 X F52