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
2017-10-31 11:03:13 C 08 22 17.74 +39 56 57.6 U G96
2017-10-31 11:10:08 C 08 22 17.94 +39 57 03.7 U G96
2017-10-31 11:17:03 C 08 22 18.09 +39 57 09.8 U G96
2017-10-31 11:23:58 C 08 22 18.06 +39 57 16.8 U G96
2017-12-08 12:42:44 C 07 53 48.960 +56 00 08.16 U F51
2017-12-08 13:23:52 C 07 53 44.770 +56 00 49.90 U F51
2017-12-08 13:44:30 C 07 53 42.657 +56 01 10.81 U F51
2018-01-01 09:29:49 C 06 33 07.002 +62 28 19.44 U F51
2018-01-01 09:50:28 C 06 33 03.613 +62 28 24.76 U F51
2018-01-01 10:11:18 C 06 33 00.169 +62 28 30.23 U F51
2018-01-01 10:31:59 C 06 32 56.735 +62 28 35.21 U F51
2018-01-23 07:34:23 C 05 23 13.225 +61 47 04.31 U F51
2018-01-23 07:53:26 C 05 23 11.376 +61 46 58.21 U F51
2018-01-23 08:12:31 C 05 23 09.613 +61 46 52.10 U F51
2018-01-23 08:31:34 C 05 23 07.869 +61 46 46.05 U F51
2019-01-31 12:38:38 C 15 48 41.02 +27 18 10.7 V G96
2019-01-31 12:46:17 C 15 48 41.72 +27 18 11.7 V G96
2019-01-31 12:53:55 C 15 48 42.47 +27 18 12.7 V G96
2019-01-31 13:01:33 C 15 48 43.22 +27 18 13.3 V G96
2019-02-08 11:52:16 C 16 07 39.58 +27 44 26.6 V 703
2019-02-08 11:59:51 C 16 07 40.29 +27 44 28.0 V 703
2019-02-08 12:07:25 C 16 07 41.08 +27 44 29.6 V 703
2019-02-08 12:15:00 C 16 07 41.72 +27 44 31.1 V 703
2019-02-08 14:36:06 C 16 07 56.153 +27 44 53.24 U F51
2019-02-08 14:52:36 C 16 07 57.793 +27 44 55.99 U F51
2019-02-08 15:09:09 C 16 07 59.440 +27 44 58.67 U F51
2019-02-26 10:58:15 C 16 53 50.01 +29 08 06.2 U I41
2019-02-26 11:57:01 C 16 53 56.66 +29 08 19.8 U I41
2019-02-26 12:09:01 C 16 53 58.03 +29 08 22.5 U I41
2019-02-26 12:38:27 C 16 54 01.34 +29 08 29.3 U I41
2019-02-26 13:08:00 C 16 54 04.72 +29 08 36.1 U I41
2019-02-28 11:44:26 C 16 59 30.79 +29 19 03.9 V 703
2019-02-28 11:52:00 C 16 59 31.67 +29 19 05.2 V 703
2019-02-28 11:59:34 C 16 59 32.55 +29 19 08.0 V 703
2019-02-28 12:07:07 C 16 59 33.41 +29 19 09.6 V 703
2019-03-02 18:35:28 S 17 06 03.137 +29 31 30.72 L C51
2019-03-06 12:00:11 C 17 17 08.74 +29 52 04.4 V G96
2019-03-06 12:05:42 C 17 17 09.39 +29 52 05.5 V G96
2019-03-06 12:11:13 C 17 17 10.21 +29 52 06.9 V G96
2019-03-06 12:16:43 C 17 17 10.85 +29 52 08.2 V G96
2019-03-06 12:26:19 C 17 17 12.05 +29 52 10.4 V G96
2019-03-06 12:31:41 C 17 17 12.72 +29 52 11.7 V G96
2019-03-06 12:37:03 C 17 17 13.38 +29 52 13.0 V G96
2019-03-06 12:42:25 C 17 17 14.05 +29 52 14.3 V G96
2019-03-07 19:29:29 S 17 21 10.810 +29 59 15.32 L C51
2019-03-09 11:17:27 C 17 26 25.00 +30 08 12.7 V 703
2019-03-09 11:32:42 C 17 26 27.03 +30 08 15.6 V 703
2019-03-09 11:40:20 C 17 26 28.08 +30 08 17.9 V 703
2019-03-09 21:44:02 S 17 27 48.065 +30 10 33.20 L C51
2019-03-10 00:52:32 S 17 28 13.313 +30 11 13.56 L C51