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
2005-11-11 10:42:04 C 07 30 49.03 +35 40 13.7 r 703
2005-11-11 10:51:24 C 07 30 48.24 +35 40 28.7 r 703
2005-11-11 11:00:52 C 07 30 47.55 +35 40 44.2 r 703
2005-11-11 11:10:28 C 07 30 46.83 +35 40 59.5 r 703
2005-11-22 11:47:35 C 07 04 34.99 +42 46 54.3 o 644
2005-11-22 12:03:02 C 07 04 32.97 +42 47 17.4 o 644
2005-11-22 12:18:53 C 07 04 30.93 +42 47 42.3 o 644
2005-11-23 08:16:04 C 07 01 58.66 +43 18 10.1 18.7 c 704
2005-11-23 08:34:38 C 07 01 56.12 +43 18 38.6 19.2 c 704
2005-11-23 08:53:17 C 07 01 53.66 +43 19 07.2 18.9 c 704
2005-11-23 09:11:51 C 07 01 51.21 +43 19 35.6 18.7 c 704
2005-11-23 09:30:21 C 07 01 48.76 +43 20 03.4 18.9 c 704
2005-11-26 22:18:53 C 06 50 03.70 +45 24 15.6 r A13
2005-11-26 22:50:30 C 06 49 58.98 +45 25 00.7 r A13
2005-11-26 22:55:50 C 06 49 58.17 +45 25 08.5 r A13
2005-12-21 06:24:24 C 05 07 58.31 +53 17 07.4 19.2 c 704
2005-12-21 07:02:56 C 05 07 51.85 +53 17 14.1 19.3 c 704
2005-12-21 07:21:31 C 05 07 48.72 +53 17 17.2 19.3 c 704
2005-12-21 07:40:31 C 05 07 45.55 +53 17 21.1 19.3 c 704
2005-12-22 08:10:06 C 05 03 44.74 +53 21 08.9 19.7 c 704
2005-12-22 08:30:32 C 05 03 41.31 +53 21 13.4 20.0 c 704
2005-12-22 08:50:09 C 05 03 38.12 +53 21 15.6 19.6 c 704
2005-12-22 09:09:35 C 05 03 34.92 +53 21 17.7 19.4 c 704
2005-12-22 09:35:47 C 05 03 30.71 +53 21 21.1 19.4 c 704
2007-03-30 23:30:46 C 14 40 12.71 +66 35 04.9 o A74
2007-03-30 23:32:52 C 14 40 12.42 +66 35 06.7 o A74
2007-03-30 23:46:26 C 14 40 10.56 +66 35 18.5 o A74
2007-03-31 00:06:48 C 14 40 07.78 +66 35 36.1 o A74
2007-04-20 06:46:05 C 12 58 10.88 +70 16 35.9 r 703
2007-04-20 06:52:50 C 12 58 09.01 +70 16 35.7 r 703
2007-04-20 06:59:31 C 12 58 07.10 +70 16 34.7 r 703
2007-04-20 07:06:11 C 12 58 05.26 +70 16 35.0 r 703
2007-05-12 21:21:09 C 10 58 03.73 +62 50 03.0 18.9 o 130
2007-05-12 21:24:24 C 10 58 03.24 +62 49 58.4 18.9 o 130
2007-05-12 21:27:21 C 10 58 02.77 +62 49 53.7 18.8 o 130
2007-05-12 21:30:15 C 10 58 02.35 +62 49 49.6 19.0 o 130
2007-10-07 11:43:23 C 07 45 06.01 +20 11 59.1 r G96
2007-10-07 11:51:56 C 07 45 06.22 +20 12 07.7 r G96
2007-10-07 12:08:00 C 07 45 06.66 +20 12 24.3 r G96
2007-10-11 10:10:05 C 07 47 33.44 +21 50 51.0 18.9 c 704
2007-10-11 10:26:23 C 07 47 33.89 +21 51 08.7 19.5 c 704
2007-10-11 10:42:35 C 07 47 34.22 +21 51 25.6 19.4 c 704
2007-10-11 10:58:48 C 07 47 34.55 +21 51 43.1 19.6 c 704
2007-10-11 11:15:02 C 07 47 34.87 +21 52 01.0 19.8 c 704
2007-10-15 10:10:31 C 07 49 30.61 +23 35 32.2 18.9 c 704
2007-10-15 10:26:47 C 07 49 30.89 +23 35 51.6 19.1 c 704
2007-10-15 10:43:10 C 07 49 31.11 +23 36 09.0 19.3 c 704
2007-10-15 10:59:26 C 07 49 31.36 +23 36 26.7 19.3 c 704
2007-10-24 10:46:03 C 07 51 27.70 +27 50 06.8 19.9 c 704
2007-10-24 11:02:50 C 07 51 27.66 +27 50 29.1 19.4 c 704