9162 Kwiila (1987 OA)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5954791131 ± 1.05e-08
Semi-major axis (a)1.4966859891 AU ± 3.11e-10
Inclination (i)9.00982902° ± 2.01e-06
Long. of Asc. Node (Ω)179.97758682° ± 1.10e-05
Arg. of Perihelion (ω)235.85023444° ± 1.08e-05
Mean Anomaly (M)292.60219626° ± 1.35e-06
Mean Motion (n)0.5382899066°/day ± 1.68e-10
Perihelion dist (q)0.60544074 AU ± 1.57e-08
Aphelion dist (Q)2.38793123 AU ± 1.58e-08
Orbital Period1.83103244 yr ± 5.71e-10
Physical Parameters
H (abs. magnitude)18.01
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.295″
Uncertainty0
Orbit TypeApollo
MOID0.080729 AU
Observations Used733
Oppositions17
Arc Total1987-2025
First Observation Used1987-07-18
Last Observation Used2025-06-30
Observations (796)
Date Type RA Dec Mag Band Observatory
1998-08-02 21:31:54 C 19 40 22.67 +24 32 57.6 118
1998-08-02 21:36:04 C 19 40 21.65 +24 33 08.0 118
1998-08-03 22:31:01 C 19 34 12.22 +25 38 02.9 118
1998-08-03 22:33:57 C 19 34 11.44 +25 38 10.9 118
1998-08-06 21:07:44 C 19 13 01.52 +29 01 53.4 557
1998-08-06 21:09:00 C 19 13 01.07 +29 01 57.4 557
1998-08-06 21:10:16 C 19 13 00.61 +29 02 01.5 557
1998-08-06 21:12:49 C 19 12 59.70 +29 02 09.4 557
1998-08-09 21:06:34 C 18 43 32.82 +33 00 22.7 15.5 143
1998-08-09 21:07:42 C 18 43 32.23 +33 00 27.4 15.5 143
1998-08-09 21:08:49 C 18 43 31.70 +33 00 31.2 15.5 143
1998-08-10 22:20:59 C 18 30 36.99 +34 29 49.1 046
1998-08-10 22:22:37 C 18 30 36.06 +34 29 54.9 046
1998-08-10 22:23:38 C 18 30 35.48 +34 29 58.5 046
1998-08-10 22:24:34 C 18 30 34.99 +34 30 01.5 046
1998-08-11 00:56:09 C 18 29 10.74 +34 38 52.7 118
1998-08-11 00:58:39 C 18 29 09.36 +34 39 01.5 118
1998-08-14 20:15:20 C 17 26 25.10 +39 59 11.4 15.5 143
1998-08-14 20:15:55 C 17 26 24.69 +39 59 12.4 15.8 143
1998-08-14 20:35:06 C 17 26 08.21 +40 00 12.2 16.1 143
1998-08-14 21:22:33 C 17 25 26.82 +40 02 33.2 118
1998-08-14 21:27:56 C 17 25 22.22 +40 02 49.6 118
1998-08-15 14:04:30 C 17 10 47.57 +40 53 00.5 360
1998-08-15 14:09:44 C 17 10 42.72 +40 53 14.9 360
1998-08-15 14:12:14 C 17 10 40.41 +40 53 21.4 360
1998-08-15 20:09:29 C 17 05 15.01 +41 09 53.8 118
1998-08-15 20:11:36 C 17 05 13.04 +41 09 59.3 118
1998-08-15 20:22:06 C 17 05 03.07 +41 10 27.3 118
1998-08-16 21:24:50 C 16 40 40.99 +42 11 07.6 118
1998-08-16 21:37:39 C 16 40 27.84 +42 11 32.8 118
1998-08-17 20:19:06 C 16 16 41.04 +42 50 51.8 118
1998-08-17 20:26:14 C 16 16 33.24 +42 51 00.5 118
1998-08-20 19:50:13 C 14 55 48.47 +42 43 51.8 16.4 z 627
1998-08-20 19:52:35 C 14 55 45.78 +42 43 48.5 15.9 z 627
1998-08-20 19:54:22 C 14 55 43.77 +42 43 43.6 16.3 z 627
1998-08-20 20:33:01 C 14 54 59.28 +42 42 35.6 16.3 z 627
1998-08-20 20:40:11 C 14 54 51.03 +42 42 22.4 16.1 z 627
1998-08-20 20:49:41 C 14 54 40.12 +42 42 05.2 16.1 z 627
2001-05-24 06:41:04 C 14 30 48.691 -03 08 36.55 e 645
2001-05-24 06:46:04 C 14 30 48.426 -03 08 35.56 21.88 e 645
2005-06-04 07:50:11 C 16 39 14.033 -06 40 12.22 e 645
2005-06-04 07:55:11 C 16 39 13.706 -06 40 11.23 21.37 e 645
2005-06-05 07:46:59 C 16 37 31.83 -06 35 21.1 d 291
2005-06-05 07:57:50 C 16 37 31.03 -06 35 18.7 d 291
2005-06-05 08:09:26 C 16 37 30.14 -06 35 16.2 d 291
2005-06-14 06:53:01 C 16 22 24.87 -05 59 41.7 c 691
2005-06-14 07:18:06 C 16 22 23.12 -05 59 38.5 c 691
2005-06-14 07:43:11 C 16 22 21.36 -05 59 35.1 c 691
2006-04-26 04:14:51 C 08 07 00.15 +18 06 01.6 r G96
2006-04-26 04:21:04 C 08 07 01.30 +18 05 59.6 r G96