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
1997-02-10 12:21:01 C 14 09 42.79 -24 50 09.5 i 711
1997-02-11 12:01:12 C 14 06 35.88 -24 15 11.7 i 711
1997-02-11 12:08:24 C 14 06 34.87 -24 15 00.8 i 711
1997-02-13 11:42:17 C 14 00 15.21 -23 03 27.5 i 711
1997-02-13 11:58:42 C 14 00 13.05 -23 03 01.8 i 711
1997-02-14 11:56:06 C 13 57 01.37 -22 26 12.5 c 608
1997-02-14 12:47:45 C 13 56 54.15 -22 24 54.5 c 608
1997-02-15 11:38:10 C 13 53 49.35 -21 49 25.7 c 608
1997-02-15 12:23:04 C 13 53 42.99 -21 48 16.5 c 608
1997-02-17 11:16:58 C 13 47 19.14 -20 34 07.9 c 608
1997-02-17 11:45:04 C 13 47 15.16 -20 33 23.0 c 608
1997-03-09 06:27:59 12 41 36.38 -07 18 01.1 18.3 809
1997-03-09 06:47:00 12 41 33.84 -07 17 31.6 809
1997-03-09 07:05:59 12 41 31.33 -07 17 02.5 809
1997-03-11 01:54:57 C 12 36 03.01 -06 09 33.0 z 046
1997-03-11 01:57:59 C 12 36 02.61 -06 09 28.1 z 046
1997-03-11 02:01:52 C 12 36 02.06 -06 09 21.9 z 046
1997-03-15 08:09:19 C 12 23 43.75 -03 36 15.3 i 711
1997-03-15 08:16:50 C 12 23 42.78 -03 36 04.5 i 711
1997-03-16 08:34:27 C 12 20 57.31 -03 01 48.7 i 711
1997-03-16 08:41:42 C 12 20 56.45 -03 01 38.6 i 711
1997-03-17 08:08:56 C 12 18 20.93 -02 29 24.3 i 711
1997-03-17 08:56:26 C 12 18 15.53 -02 28 20.0 i 711
1998-07-17 22:47:46 C 20 30 24.12 +13 05 28.5 046
1998-07-17 22:52:26 C 20 30 23.80 +13 05 34.5 046
1998-07-17 22:57:06 C 20 30 23.45 +13 05 40.6 046
1998-07-17 23:01:45 C 20 30 23.13 +13 05 46.6 046
1998-07-19 22:53:36 C 20 26 56.44 +14 09 55.4 118
1998-07-19 23:02:50 C 20 26 55.67 +14 10 08.3 118
1998-07-19 23:28:44 C 20 26 53.58 +14 10 43.9 046
1998-07-19 23:30:18 C 20 26 53.49 +14 10 46.6 046
1998-07-19 23:31:52 C 20 26 53.34 +14 10 48.4 046
1998-07-21 22:44:44 C 20 22 56.50 +15 18 32.7 557
1998-07-21 22:48:06 C 20 22 56.19 +15 18 37.5 557
1998-07-22 23:14:00 C 20 20 39.13 +15 55 41.8 z 560
1998-07-22 23:31:19 C 20 20 37.34 +15 56 06.7 z 560
1998-07-22 23:34:02 C 20 20 37.11 +15 56 11.5 z 560
1998-07-22 23:36:42 C 20 20 36.82 +15 56 14.9 z 560
1998-07-22 23:51:55 C 20 20 35.08 +15 56 37.5 118
1998-07-23 00:06:25 C 20 20 33.56 +15 56 59.6 118
1998-07-24 22:25:28 C 20 15 43.30 +17 11 20.5 z 560
1998-07-24 22:29:09 C 20 15 42.82 +17 11 26.7 z 560
1998-07-24 22:34:31 C 20 15 42.13 +17 11 35.1 z 560
1998-07-30 15:51:14 C 19 56 12.99 +21 31 31.7 360
1998-07-30 15:54:14 C 19 56 12.41 +21 31 37.9 360
1998-07-30 15:57:15 C 19 56 11.91 +21 31 44.2 360
1998-08-02 20:11:13 C 19 40 42.40 +24 29 32.2 046
1998-08-02 20:13:10 C 19 40 41.87 +24 29 37.4 046
1998-08-02 20:15:00 C 19 40 41.49 +24 29 41.5 046
1998-08-02 20:17:24 C 19 40 40.88 +24 29 46.9 046