8176 (1991 WA)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6431832717 ± 1.14e-08
Semi-major axis (a)1.5750859884 AU ± 1.02e-09
Inclination (i)39.58756964° ± 2.00e-06
Long. of Asc. Node (Ω)66.50109733° ± 2.91e-06
Arg. of Perihelion (ω)241.89066449° ± 2.56e-06
Mean Anomaly (M)100.30033711° ± 3.66e-06
Mean Motion (n)0.4986041328°/day ± 4.85e-10
Perihelion dist (q)0.56201703 AU ± 1.79e-08
Aphelion dist (Q)2.58815495 AU ± 1.80e-08
Orbital Period1.97677119 yr ± 1.92e-09
Physical Parameters
H (abs. magnitude)16.99
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.077″
Uncertainty0
Orbit TypeApollo
MOID0.192310 AU
Observations Used849
Gaia Obs Used50
Oppositions13
Arc Total1991-2026
First Observation Used1991-12-01
Last Observation Used2026-01-26
Observations (880)
Date Type RA Dec Mag Band Observatory
2013-11-19 09:03:16 C 08 01 12.61 +46 14 06.0 u H21
2013-11-19 09:13:16 C 08 01 12.17 +46 14 18.6 u H21
2013-11-24 09:54:21 C 07 54 31.14 +48 41 00.2 u H21
2013-11-24 10:01:02 C 07 54 30.67 +48 41 08.1 u H21
2013-11-24 10:08:29 C 07 54 30.17 +48 41 17.4 u H21
2013-11-28 09:10:56 C 07 47 31.81 +50 35 27.7 q 703
2013-11-28 09:20:26 C 07 47 30.93 +50 35 38.5 q 703
2013-11-28 09:30:04 C 07 47 30.30 +50 35 49.8 q 703
2013-11-28 09:39:46 C 07 47 29.40 +50 36 02.0 q 703
2013-11-29 08:45:42 C 07 45 33.15 +51 03 17.1 q 703
2013-11-29 08:53:50 C 07 45 32.32 +51 03 26.7 q 703
2013-11-29 09:01:54 C 07 45 31.74 +51 03 36.8 q 703
2013-11-29 09:09:59 C 07 45 30.92 +51 03 47.3 q 703
2015-03-03 15:15:43 C 16 28 13.383 +40 32 55.00 L F51
2015-03-03 15:22:21 C 16 28 13.914 +40 32 59.66 L F51
2015-03-03 15:29:01 C 16 28 14.453 +40 33 04.38 L F51
2015-03-03 15:35:43 C 16 28 14.988 +40 33 09.10 L F51
2015-03-14 14:07:55 C 16 50 32.986 +43 56 51.24 L F51
2015-03-14 14:28:56 C 16 50 34.734 +43 57 09.20 L F51
2015-03-14 14:51:25 C 16 50 36.607 +43 57 28.45 L F51
2015-03-26 10:53:55 C 17 16 29.28 +48 25 39.0 q 703
2015-03-26 10:59:45 C 17 16 29.87 +48 25 45.3 q 703
2015-03-26 11:05:34 C 17 16 30.43 +48 25 51.0 q 703
2015-03-26 11:11:23 C 17 16 30.96 +48 25 58.3 q 703
2015-04-05 08:59:35 C 17 42 29.32 +52 59 55.2 u H21
2015-04-05 09:02:36 C 17 42 29.69 +52 59 58.9 u H21
2015-04-05 09:05:32 C 17 42 30.03 +53 00 02.8 u H21
2015-04-05 09:08:44 C 17 42 30.43 +53 00 06.7 u H21
2015-04-05 09:12:35 C 17 42 30.92 +53 00 11.6 u H21
2015-04-05 09:15:19 C 17 42 31.24 +53 00 15.1 u H21
2015-04-05 09:17:16 C 17 42 31.46 +53 00 17.6 u H21
2015-04-15 18:25:53 S 18 22 50.556 +58 58 25.50 L C51
2015-04-15 21:34:56 S 18 23 31.606 +59 03 31.93 L C51
2015-04-16 00:43:59 S 18 24 13.003 +59 08 40.13 L C51
2015-04-16 03:53:02 S 18 24 54.914 +59 13 48.11 L C51
2015-04-16 10:11:09 S 18 26 19.889 +59 24 07.88 L C51
2015-04-16 13:20:12 S 18 27 02.974 +59 29 19.21 L C51
2015-04-16 16:29:15 S 18 27 46.462 +59 34 31.22 L C51
2015-04-16 19:38:18 S 18 28 30.518 +59 39 44.32 L C51
2015-04-21 00:15:58 C 18 56 37.36 +62 33 26.5 q C47
2015-04-21 00:20:13 C 18 56 38.73 +62 33 34.3 q C47
2015-04-21 00:24:27 C 18 56 40.13 +62 33 41.9 q C47
2015-04-21 00:29:14 C 18 56 41.68 +62 33 50.9 q C47
2015-04-21 00:34:01 C 18 56 43.27 +62 33 59.3 q C47
2015-04-21 00:38:17 C 18 56 44.70 +62 34 07.3 q C47
2015-11-08 10:13:02 C 08 16 42.93 +41 55 04.2 q 703
2015-11-08 10:19:33 C 08 16 42.80 +41 55 12.5 q 703
2015-11-08 10:32:35 C 08 16 42.82 +41 55 26.5 q 703
2015-12-03 07:35:37 C 07 52 20.03 +53 11 44.1 q 703
2015-12-03 07:44:23 C 07 52 19.28 +53 11 55.1 q 703