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
1987-07-18 13:08:28 A 19 49 33.74 +09 37 24.9 17.5 413
1987-07-18 14:23:28 A 19 49 25.11 +09 38 24.7 413
1987-07-29 05:50:59 19 12 38.03 +13 02 58.7 675
1987-07-29 06:56:00 19 12 25.61 +13 03 51.7 675
1987-07-31 04:45:00 19 03 36.43 +13 40 07.3 675
1987-07-31 05:24:59 19 03 28.23 +13 40 39.6 675
1987-08-05 05:01:00 18 36 21.47 +15 11 21.2 K 675
1987-08-05 08:26:00 18 35 27.93 +15 13 48.6 675
1987-08-05 08:51:00 18 35 21.18 +15 14 08.1 675
1987-08-14 04:54:00 17 29 11.67 +17 18 17.1 675
1987-08-14 05:17:00 17 29 03.18 +17 18 25.2 675
1987-08-17 05:34:17 A 17 00 21.31 +17 38 30.4 B 691
1987-08-17 05:47:55 A 17 00 15.48 +17 38 32.1 B 691
1987-08-17 06:06:15 A 17 00 07.63 +17 38 34.5 B 691
1987-08-21 02:13:27 A 16 19 01.23 +17 36 33.8 A 801
1996-06-15 06:42:11 C 17 48 56.83 -05 20 14.7 a 691
1996-06-15 07:12:13 C 17 48 54.39 -05 20 09.0 a 691
1996-06-15 07:49:17 C 17 48 51.38 -05 20 02.3 a 691
1996-06-15 08:32:46 c 17 48 47.38 -05 19 54.7 i 691
1996-06-15 09:13:09 c 17 48 44.18 -05 19 46.5 i 691
1996-06-15 09:43:30 c 17 48 41.66 -05 19 41.4 i 691
1996-06-16 08:21:38 C 17 46 53.44 -05 15 36.3 i 691
1996-06-16 08:26:32 C 17 46 53.00 -05 15 35.2 i 691
1996-06-16 08:33:29 C 17 46 52.45 -05 15 34.2 i 691
1996-06-20 06:35:06 C 17 39 10.79 -05 00 30.7 z 709
1996-06-20 06:38:59 C 17 39 10.44 -05 00 30.4 z 709
1996-06-20 06:42:47 C 17 39 10.17 -05 00 29.8 z 709
1996-06-20 06:46:39 C 17 39 09.90 -05 00 29.6 z 709
1996-06-20 06:50:29 C 17 39 09.50 -05 00 29.2 z 709
1996-06-20 06:54:19 C 17 39 09.17 -05 00 28.3 z 709
1996-06-20 06:58:09 C 17 39 08.85 -05 00 27.5 z 709
1996-06-20 07:01:58 C 17 39 08.53 -05 00 27.3 z 709
1996-06-20 07:05:47 C 17 39 08.22 -05 00 26.8 z 709
1996-06-21 12:09:23 C 17 36 42.88 -04 56 19.1 413
1996-06-21 12:15:26 C 17 36 42.35 -04 56 18.1 413
1996-06-21 12:26:02 C 17 36 41.43 -04 56 16.7 413
1996-06-21 17:23:55 C 17 36 15.84 -04 55 37.3 413
1996-06-21 17:37:28 C 17 36 14.71 -04 55 35.8 413
1996-06-22 06:18:48 C 17 35 11.29 -04 54 09.5 i 711
1996-06-22 06:37:36 C 17 35 09.56 -04 54 07.1 i 711
1996-06-25 07:51:38 C 17 28 58.41 -04 46 10.5 z 696
1996-06-25 08:01:56 C 17 28 57.54 -04 46 09.4 z 696
1996-06-26 04:44:27 C 17 27 12.53 -04 44 19.1 i 711
1996-07-18 13:38:11 C 16 46 15.08 -05 02 59.3 413
1996-07-18 13:44:24 C 16 46 14.66 -05 03 00.2 413
1996-07-20 05:08:38 C 16 43 54.42 -05 09 25.5 i 711
1996-07-20 05:27:47 C 16 43 53.26 -05 09 28.6 i 711
1996-07-23 03:03:11 C 16 40 04.02 -05 21 58.4 i 711
1996-07-23 03:22:05 C 16 40 03.01 -05 22 01.8 i 711
1997-02-10 12:13:22 C 14 09 43.92 -24 50 19.7 i 711