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
1991-11-29 10:52:29 A 02 01 35.77 -20 57 38.4 413
1991-11-29 12:02:30 A 02 01 30.13 -20 48 06.7 413
1991-12-01 10:11:49 A 01 58 36.05 -14 44 14.4 413
1991-12-01 13:14:27 A 01 58 24.73 -14 21 55.9 413
1991-12-01 13:23:09 A 01 58 24.35 -14 20 51.2 413
1991-12-02 11:53:30 A 01 57 17.75 -11 42 23.3 413
1991-12-02 14:46:09 A 01 57 08.70 -11 22 54.7 413
1991-12-04 10:44:32 A 01 55 26.34 -06 46 05.6 413
1991-12-04 10:52:32 A 01 55 26.03 -06 45 16.3 413
1991-12-04 12:12:42 A 01 55 22.79 -06 37 29.5 413
1991-12-05 01:42:08 C 01 54 57.52 -05 20 52.3 801
1991-12-20 12:37:40 A 01 54 04.44 +15 33 19.8 413
1991-12-20 12:40:22 A 01 54 04.49 +15 33 25.8 413
1991-12-20 12:43:01 A 01 54 04.44 +15 33 30.3 413
1991-12-20 12:45:38 A 01 54 04.55 +15 33 35.1 413
1991-12-20 12:54:13 A 01 54 04.68 +15 33 52.6 413
1991-12-20 13:09:55 A 01 54 04.90 +15 34 23.5 413
1991-12-20 13:12:50 A 01 54 04.98 +15 34 29.3 413
1992-01-02 00:18:33 C 02 01 57.78 +22 52 37.1 z 801
1992-01-02 00:28:07 C 02 01 58.02 +22 52 46.4 z 801
1993-11-21 12:04:38 A 04 18 59.63 -15 42 02.3 413
1993-11-21 12:13:14 A 04 18 55.92 -15 40 54.3 413
1993-11-22 14:53:07 C 04 07 57.18 -12 11 42.0 413
1993-11-22 14:56:13 C 04 07 55.90 -12 11 17.2 413
1993-11-22 14:59:34 C 04 07 54.59 -12 10 52.1 413
1993-11-23 09:27:58 C 04 00 52.38 -09 52 35.6 z 658
1993-11-23 09:31:22 C 04 00 51.15 -09 52 11.8 z 658
1993-11-23 09:34:09 C 04 00 50.13 -09 51 51.5 z 658
1993-11-25 08:21:14 C 03 44 52.90 -04 25 15.1 z 658
1993-11-25 08:23:53 C 03 44 52.04 -04 24 57.4 z 658
1993-11-25 08:26:52 C 03 44 51.06 -04 24 37.7 z 658
1993-12-14 02:06:24 c 02 33 40.38 +21 42 08.1 i 691
1993-12-14 02:56:55 c 02 33 37.09 +21 43 29.7 i 691
1993-12-14 03:45:06 c 02 33 33.87 +21 44 48.8 i 691
1993-12-15 01:37:59 c 02 32 17.27 +22 18 58.8 i 691
1993-12-15 01:50:01 c 02 32 16.58 +22 19 17.3 i 691
1993-12-15 02:01:24 c 02 32 15.87 +22 19 34.3 i 691
1994-01-14 02:41:02 C 02 30 23.51 +31 57 21.2 z 658
1994-01-14 02:48:02 C 02 30 23.71 +31 57 23.5 z 658
1994-01-14 02:56:12 C 02 30 23.89 +31 57 27.0 z 658
1994-01-14 03:04:02 C 02 30 24.15 +31 57 31.2 z 658
1995-05-31 03:18:15 C 10 24 58.19 +50 01 50.5 711
1995-05-31 03:35:28 C 10 24 58.82 +50 01 30.0 711
1995-10-20 18:09:17 C 09 19 29.66 -34 18 14.0 413
1995-10-20 18:14:50 C 09 19 28.52 -34 18 07.4 413
1995-10-25 11:50:59 C 08 53 35.06 -31 21 45.5 711
1995-10-25 11:57:50 C 08 53 33.35 -31 21 32.9 711
1995-10-31 16:33:49 C 08 14 51.73 -25 47 36.1 413
1995-10-31 16:36:27 C 08 14 50.98 -25 47 28.7 413
1995-11-09 00:55:53 C 07 10 56.16 -14 01 13.5 118