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
2007-10-24 11:19:33 C 07 51 27.60 +27 50 50.1 19.6 c 704
2007-11-03 10:49:45 C 07 48 29.69 +33 05 39.9 19.2 c 704
2007-11-03 11:07:11 C 07 48 29.17 +33 06 03.4 19.4 c 704
2007-11-03 11:24:39 C 07 48 28.70 +33 06 28.0 19.4 c 704
2007-11-03 11:42:07 C 07 48 28.19 +33 06 52.6 19.2 c 704
2007-11-21 08:43:40 C 07 23 06.57 +43 32 40.8 r 703
2007-11-21 08:50:00 C 07 23 06.00 +43 32 50.8 r 703
2007-11-21 08:56:17 C 07 23 05.28 +43 33 00.6 r 703
2007-11-21 09:02:38 C 07 23 04.66 +43 33 08.3 r 703
2009-03-03 10:27:46 C 15 30 55.58 +52 44 00.0 r 703
2009-03-03 10:38:25 C 15 30 55.87 +52 44 10.2 r 703
2009-03-03 10:49:03 C 15 30 56.16 +52 44 21.2 r 703
2009-03-03 10:59:39 C 15 30 56.44 +52 44 31.3 r 703
2009-03-23 08:40:48 C 15 30 32.07 +61 13 41.2 r 703
2009-03-23 08:49:36 C 15 30 31.71 +61 13 51.5 r 703
2009-03-23 08:58:10 C 15 30 31.39 +61 14 00.3 r 703
2009-03-23 09:06:54 C 15 30 30.96 +61 14 10.5 r 703
2009-03-25 08:15:06 C 15 28 24.06 +62 06 12.1 r 703
2009-03-25 08:20:59 C 15 28 23.70 +62 06 17.2 r 703
2009-03-25 08:26:52 C 15 28 23.08 +62 06 22.4 r 703
2009-04-09 20:58:18 C 14 48 00.54 +68 27 53.3 o A13
2009-04-09 21:31:12 C 14 47 54.46 +68 28 23.1 o A13
2009-09-23 11:21:16 C 07 32 25.23 +19 00 49.8 o 691
2009-09-23 11:39:31 C 07 32 26.08 +19 01 05.5 o 691
2009-09-23 11:57:45 C 07 32 26.97 +19 01 21.1 o 691
2009-09-26 12:05:45 C 07 35 53.11 +20 02 20.4 o 691
2009-09-26 12:29:00 C 07 35 54.15 +20 02 38.9 o 691
2011-03-09 18:39:57 C 15 56 09.68 +51 27 26.3 o 300
2011-03-09 18:42:20 C 15 56 09.75 +51 27 28.3 o 300
2011-03-09 18:44:42 C 15 56 09.79 +51 27 30.3 o 300
2011-03-09 18:47:06 C 15 56 09.93 +51 27 33.0 o 300
2011-03-09 18:49:29 C 15 56 09.93 +51 27 35.7 o 300
2011-03-09 18:51:52 C 15 56 10.03 +51 27 38.2 o 300
2011-03-09 18:54:16 C 15 56 10.07 +51 27 41.0 o 300
2011-03-16 09:15:45 C 16 01 05.80 +54 14 45.0 r 703
2011-03-16 09:25:47 C 16 01 06.16 +54 14 57.4 r 703
2011-03-16 09:35:54 C 16 01 06.27 +54 15 07.3 r 703
2011-03-16 09:45:59 C 16 01 06.52 +54 15 19.1 r 703
2011-03-23 23:13:21 C 16 03 43.34 +57 41 06.4 c A24
2011-03-23 23:14:23 C 16 03 43.37 +57 41 07.6 c A24
2011-04-02 09:50:54 C 16 00 04.60 +62 17 27.5 r 703
2011-04-02 09:59:18 C 16 00 04.28 +62 17 37.3 r 703
2011-04-02 10:07:44 C 16 00 03.78 +62 17 48.1 r 703
2011-04-02 10:16:10 C 16 00 03.42 +62 17 59.5 r 703
2011-04-06 02:35:46 C 15 55 32.95 +64 10 00.5 c A24
2011-04-06 02:36:48 C 15 55 32.85 +64 10 01.5 c A24
2011-04-06 02:37:51 C 15 55 32.80 +64 10 02.5 c A24
2011-04-10 01:37:38 C 15 47 57.68 +66 11 59.9 c A24
2011-04-10 02:11:56 C 15 47 54.09 +66 12 44.3 c A24
2011-04-10 02:23:33 C 15 47 52.90 +66 12 59.2 c A24