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
2015-12-03 07:53:10 C 07 52 18.38 +53 12 04.0 q 703
2015-12-18 08:47:45 C 07 09 11.24 +58 55 34.8 q 703
2015-12-18 08:56:30 C 07 09 09.77 +58 55 40.0 q 703
2015-12-18 09:05:15 C 07 09 08.42 +58 55 46.7 q 703
2017-03-22 11:39:53 C 17 42 06.75 +39 45 17.4 q 703
2017-03-22 11:47:06 C 17 42 07.73 +39 45 22.4 q 703
2017-03-22 11:54:16 C 17 42 08.65 +39 45 27.8 q 703
2017-03-22 12:01:28 C 17 42 09.63 +39 45 32.5 q 703
2017-04-02 22:58:45 S 18 26 39.482 +42 47 21.19 L C51
2017-04-03 02:07:15 S 18 27 16.478 +42 49 25.50 L C51
2017-04-03 06:50:11 S 18 28 12.22 +42 52 33.6 L C51
2017-04-03 08:24:26 S 18 28 30.962 +42 53 35.77 L C51
2017-04-03 09:58:41 S 18 28 49.40 +42 54 37.8 L C51
2017-04-03 11:33:07 S 18 29 08.55 +42 55 41.0 L C51
2017-04-03 14:41:38 S 18 29 46.30 +42 57 45.5 L C51
2017-04-03 16:15:53 S 18 30 05.222 +42 58 47.60 L C51
2017-04-03 19:24:34 S 18 30 43.41 +43 00 52.6 L C51
2017-04-03 20:58:49 S 18 31 02.56 +43 01 54.1 L C51
2017-04-03 22:33:04 S 18 31 21.686 +43 02 56.36 L C51
2017-04-04 00:07:19 S 18 31 40.85 +43 03 57.7 L C51
2017-04-04 01:41:34 S 18 32 00.14 +43 05 00.0 L C51
2017-04-04 01:41:45 S 18 32 00.20 +43 05 00.8 L C51
2017-04-04 03:16:00 S 18 32 19.55 +43 06 01.8 L C51
2017-04-04 04:50:15 S 18 32 38.966 +43 07 04.01 L C51
2017-04-04 06:24:30 S 18 32 58.19 +43 08 07.9 L C51
2017-04-04 07:58:45 S 18 33 17.78 +43 09 07.8 L C51
2017-04-04 09:33:11 S 18 33 37.32 +43 10 10.2 L C51
2017-04-04 11:07:27 S 18 33 56.98 +43 11 11.6 L C51
2017-04-04 14:15:57 S 18 34 36.33 +43 13 14.9 L C51
2017-04-12 08:47:36 C 19 21 43.56 +45 01 38.4 u H21
2017-04-12 08:52:36 C 19 21 45.09 +45 01 41.0 u H21
2017-04-12 08:58:28 C 19 21 46.85 +45 01 43.8 u H21
2017-04-12 09:02:52 C 19 21 48.14 +45 01 45.7 u H21
2017-04-12 09:06:11 C 19 21 49.11 +45 01 47.2 u H21
2017-04-13 01:05:18 C 19 26 47.74 +45 08 39.4 q Z80
2017-04-13 01:15:44 C 19 26 51.09 +45 08 44.0 q Z80
2017-04-13 01:21:03 C 19 26 52.77 +45 08 46.3 q Z80
2017-04-13 01:26:21 C 19 26 54.39 +45 08 48.5 q Z80
2017-04-13 01:31:39 C 19 26 56.04 +45 08 51.1 q Z80
2017-04-26 21:35:26 C 22 00 45.56 +41 56 07.9 q 168
2017-04-26 21:39:11 C 22 00 47.82 +41 55 59.1 q 168
2017-04-29 03:04:51 C 22 33 40.53 +39 23 18.1 q 160
2017-04-29 03:07:15 C 22 33 41.98 +39 23 10.6 q 160
2017-04-29 03:09:38 C 22 33 43.45 +39 23 02.7 q 160
2017-04-30 21:12:16 C 22 59 50.95 +36 47 40.4 q 168
2017-04-30 22:00:06 C 23 00 20.49 +36 44 28.9 q 168
2017-10-03 14:44:45 C 07 56 39.550 +31 28 22.50 L F51
2017-10-03 14:53:06 C 07 56 39.991 +31 28 27.91 L F51
2017-10-03 15:01:28 C 07 56 40.435 +31 28 33.29 L F51
2017-10-03 15:09:50 C 07 56 40.866 +31 28 38.59 L F51