523802 (1998 KH9)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4589589351 ± 4.60e-08
Semi-major axis (a)2.2032336198 AU ± 4.51e-09
Inclination (i)17.67115958° ± 6.76e-06
Long. of Asc. Node (Ω)82.61787642° ± 8.58e-06
Arg. of Perihelion (ω)185.38758373° ± 2.21e-05
Mean Anomaly (M)135.56075414° ± 1.61e-05
Mean Motion (n)0.3013848734°/day ± 9.26e-10
Perihelion dist (q)1.19203986 AU ± 1.01e-07
Aphelion dist (Q)3.21442738 AU ± 1.02e-07
Orbital Period3.27032433 yr ± 1.00e-08
Physical Parameters
H (abs. magnitude)18.44
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.443″
Uncertainty0
Orbit TypeAmor
MOID0.176082 AU
Observations Used260
Oppositions18
Arc Total1998-2024
First Observation Used1998-05-22
Last Observation Used2024-05-26
Observations (267)
Date Type RA Dec Mag Band Observatory
1998-06-04 23:44:32 C 15 08 44.52 +05 53 52.7 557
1998-06-04 23:46:44 C 15 08 44.47 +05 53 46.0 557
1998-06-06 00:15:09 C 15 08 05.54 +04 41 25.6 557
1998-06-06 00:20:45 C 15 08 05.47 +04 41 08.1 557
1998-06-09 22:43:38 C 15 06 00.16 -00 18 29.7 046
1998-06-09 22:45:22 C 15 06 00.13 -00 18 35.4 046
1998-06-09 22:47:28 C 15 06 00.06 -00 18 42.4 046
1998-06-14 05:37:00 C 15 04 34.14 -06 16 49.6 z 670
1998-06-14 05:49:30 C 15 04 33.89 -06 17 35.6 z 670
1998-06-14 06:11:59 C 15 04 33.48 -06 18 57.1 z 670
1998-06-14 06:27:59 C 15 04 33.22 -06 19 54.1 z 670
1998-06-14 22:09:24 C 15 04 25.18 -07 16 59.5 557
1998-06-14 22:11:04 C 15 04 25.15 -07 17 05.8 557
1998-06-14 22:12:45 C 15 04 25.14 -07 17 12.2 557
1998-06-16 05:49:04 C 15 04 14.00 -09 13 16.3 18.0 a 704
1998-06-16 06:02:13 C 15 04 14.46 -09 14 10.7 658
1998-06-16 06:08:36 C 15 04 14.37 -09 14 34.5 658
1998-06-16 06:11:50 C 15 04 14.34 -09 14 46.3 658
1998-06-16 06:14:08 C 15 04 13.73 -09 14 47.9 18.0 a 704
1998-06-16 06:39:32 C 15 04 13.32 -09 16 21.7 18.2 a 704
1998-06-16 07:05:09 C 15 04 13.12 -09 17 56.1 18.2 a 704
1998-06-16 07:29:57 C 15 04 12.84 -09 19 26.1 18.0 a 704
1998-06-16 21:00:05 C 15 04 11.53 -10 09 43.6 z 104
1998-06-16 21:01:49 C 15 04 11.53 -10 09 49.3 z 104
1998-06-16 21:03:29 C 15 04 11.52 -10 09 55.1 z 104
1998-06-17 13:39:30 C 15 04 09.49 -11 11 50.5 360
1998-06-17 13:42:44 C 15 04 09.46 -11 12 02.7 360
1998-06-17 13:45:59 C 15 04 09.43 -11 12 14.8 360
1998-06-17 14:06:32 C 15 04 09.15 -11 13 32.1 z 402
1998-06-17 14:08:32 C 15 04 09.13 -11 13 39.6 z 402
1998-06-17 14:10:33 C 15 04 09.07 -11 13 46.9 z 402
1998-06-18 06:38:07 C 15 04 09.39 -12 15 32.2 17.1 a 704
1998-06-18 06:54:32 C 15 04 09.37 -12 16 34.4 17.7 a 704
1998-06-18 07:11:00 C 15 04 09.19 -12 17 36.2 17.2 a 704
1998-06-18 07:27:33 C 15 04 09.16 -12 18 35.7 17.9 a 704
1998-06-18 07:44:02 C 15 04 08.89 -12 19 41.8 18.4 a 704
1998-06-19 07:46:11 C 15 04 13.82 -13 50 22.5 658
1998-06-19 07:52:07 C 15 04 13.82 -13 50 45.4 658
1998-06-19 07:58:07 C 15 04 13.79 -13 51 07.6 658
1998-06-19 20:38:47 C 15 04 18.86 -14 39 03.8 z 587
1998-06-19 20:41:09 C 15 04 18.83 -14 39 13.0 z 587
1998-06-19 20:44:45 C 15 04 18.87 -14 39 26.5 z 587
1998-06-23 23:19:40 C 15 05 33.92 -20 51 10.4 z 860
1998-06-23 23:26:19 C 15 05 33.97 -20 51 33.6 z 860
1998-06-23 23:33:10 C 15 05 33.99 -20 51 57.0 z 860
1998-06-25 10:59:30 C 15 06 21.27 -23 03 58.8 426
1998-06-25 11:04:24 C 15 06 21.36 -23 04 17.2 426
1998-06-25 11:09:30 C 15 06 21.44 -23 04 36.4 426
1998-06-25 11:14:55 C 15 06 21.49 -23 04 56.3 426
1998-07-01 01:59:17 C 15 11 08.648 -31 06 26.33 l I02