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
2019-03-11 16:07:42 S 17 33 34.241 +30 19 50.16 L C51
2019-03-13 04:14:32 S 17 38 37.50 +30 27 31.4 L C51
2019-03-13 07:22:52 S 17 39 04.33 +30 28 09.9 L C51
2019-03-13 15:13:56 S 17 40 11.53 +30 29 46.7 L C51
2019-03-13 23:05:00 S 17 41 19.27 +30 31 24.2 L C51
2019-03-14 02:13:31 S 17 41 46.44 +30 32 03.3 L C51
2019-03-14 19:29:43 S 17 44 17.342 +30 35 31.34 L C51
2019-03-14 22:38:02 S 17 44 44.974 +30 36 08.21 L C51
2019-03-15 20:36:59 S 17 48 00.926 +30 40 24.89 L C51
2019-03-15 23:44:45 S 17 48 29.148 +30 40 59.77 L C51
2019-03-23 02:17:19 C 18 16 23.11 +31 06 45.2 q 160
2019-03-23 02:20:46 C 18 16 23.73 +31 06 44.7 q 160
2019-03-27 02:52:07 C 18 34 41.94 +31 12 25.0 V C95
2019-03-27 03:16:33 C 18 34 46.80 +31 12 25.5 V C95
2019-03-27 03:41:10 C 18 34 51.68 +31 12 26.3 V C95
2019-03-27 04:05:48 C 18 34 56.59 +31 12 26.6 V C95
2019-10-30 10:32:44 C 08 28 15.62 +40 19 06.4 V G96
2019-10-30 10:39:28 C 08 28 15.77 +40 19 12.1 V G96
2019-10-30 10:46:11 C 08 28 15.91 +40 19 17.8 V G96
2019-10-30 10:52:53 C 08 28 16.09 +40 19 23.4 V G96
2019-12-31 11:40:18 C 06 58 27.958 +62 59 39.40 U F51
2019-12-31 11:57:54 C 06 58 25.048 +62 59 46.15 U F51
2019-12-31 12:15:30 C 06 58 22.167 +62 59 52.93 U F51
2020-01-26 05:52:13 C 05 33 41.607 +62 46 51.09 U F51
2020-01-26 06:11:50 C 05 33 39.761 +62 46 45.04 U F51
2020-01-26 06:31:26 C 05 33 37.914 +62 46 38.96 U F51
2020-01-26 06:51:02 C 05 33 36.078 +62 46 32.96 U F51
2021-01-18 12:02:12 C 15 29 45.76 +23 54 19.0 V 703
2021-01-18 12:09:46 C 15 29 46.50 +23 54 17.4 V 703
2021-01-18 12:24:51 C 15 29 47.92 +23 54 18.5 V 703
2021-02-09 11:59:13 C 16 24 54.94 +23 35 47.8 V 703
2021-02-09 12:06:46 C 16 24 55.78 +23 35 47.7 V 703
2021-02-09 12:14:21 C 16 24 56.52 +23 35 46.9 V 703
2021-02-24 11:39:54 C 17 07 54.62 +23 27 39.1 U I41
2021-02-24 11:41:15 C 17 07 54.77 +23 27 38.9 U I41
2021-02-24 12:49:39 C 17 08 03.51 +23 27 36.3 U I41
2021-02-24 12:51:01 C 17 08 03.69 +23 27 36.2 U I41
2021-03-03 12:28:49 C 17 30 51.39 +23 15 57.1 V 703
2021-03-03 12:35:33 C 17 30 52.39 +23 15 56.4 V 703
2021-03-03 12:42:17 C 17 30 53.29 +23 15 54.8 V 703
2021-03-03 12:49:01 C 17 30 54.28 +23 15 53.6 V 703
2021-03-24 14:46:17 C 19 01 35.52 +20 42 05.6 V T08
2021-03-24 14:52:27 C 19 01 36.92 +20 42 01.9 V T08
2021-03-24 15:18:32 C 19 01 42.85 +20 41 45.1 V T08
2021-04-13 14:29:01 C 21 30 36.83 +09 46 30.1 V T08
2021-04-13 14:38:19 C 21 30 40.44 +09 46 10.1 V T08
2021-04-13 15:04:22 C 21 30 50.62 +09 45 12.9 V T08
2021-04-13 15:09:42 C 21 30 52.71 +09 45 00.9 V T08
2021-09-05 11:55:03 C 07 21 00.33 +28 33 48.8 U I41
2021-09-05 11:58:42 C 07 21 00.61 +28 33 50.4 U I41