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
2021-09-05 12:02:19 C 07 21 00.88 +28 33 52.1 U I41
2021-09-05 12:09:33 C 07 21 01.41 +28 33 55.5 U I41
2021-09-05 14:53:13 C 07 21 13.811 +28 35 12.38 U F51
2021-09-05 14:59:23 C 07 21 14.268 +28 35 15.23 U F51
2021-09-05 15:05:38 C 07 21 14.741 +28 35 18.32 U F51
2021-09-17 14:40:06 C 07 41 59.680 +30 50 24.68 U F52
2021-09-17 14:45:32 C 07 42 00.059 +30 50 27.27 U F52
2021-09-17 14:56:29 C 07 42 00.789 +30 50 32.70 U F52
2021-10-21 14:29:18 C 08 27 52.497 +38 36 42.70 U F52
2021-10-21 14:44:37 C 08 27 53.100 +38 36 53.23 U F52
2021-10-21 15:15:16 C 08 27 54.288 +38 37 15.30 U F52
2021-10-24 09:54:14 C 08 30 30.56 +39 25 04.7 V G96
2021-10-24 10:01:35 C 08 30 30.84 +39 25 09.5 V G96
2021-10-24 10:08:58 C 08 30 31.04 +39 25 15.8 V G96
2021-10-24 10:16:19 C 08 30 31.38 +39 25 21.3 V G96
2021-11-03 10:33:33 C 08 37 51.57 +42 34 25.3 V G96
2021-11-03 10:41:07 C 08 37 51.74 +42 34 32.2 V G96
2021-11-03 10:48:40 C 08 37 51.88 +42 34 38.4 V G96
2021-11-03 10:56:14 C 08 37 52.06 +42 34 44.4 V G96
2021-11-10 13:03:07 C 08 40 43.217 +45 04 51.40 U F52
2021-11-10 13:23:15 C 08 40 43.381 +45 05 10.05 U F52
2021-11-10 13:43:26 C 08 40 43.557 +45 05 28.93 U F52
2021-11-10 14:03:38 C 08 40 43.727 +45 05 47.58 U F52
2021-11-13 10:46:24 C 08 41 12.80 +46 10 07.0 V G96
2021-11-13 10:53:24 C 08 41 12.80 +46 10 13.7 V G96
2021-11-13 11:00:23 C 08 41 12.80 +46 10 20.5 V G96
2021-11-13 11:07:24 C 08 41 12.85 +46 10 26.9 V G96
2021-11-27 11:24:10 C 08 36 39.25 +51 49 26.7 V V00
2021-11-27 11:25:45 C 08 36 39.19 +51 49 28.5 V V00
2021-11-27 11:31:11 C 08 36 39.00 +51 49 33.9 V V00
2021-11-27 11:32:47 C 08 36 38.94 +51 49 35.7 V V00
2021-11-27 11:38:14 C 08 36 38.72 +51 49 41.3 V V00
2021-11-27 11:39:49 C 08 36 38.69 +51 49 43.1 V V00
2021-11-27 11:45:16 C 08 36 38.48 +51 49 48.7 V V00
2021-11-27 11:46:51 C 08 36 38.42 +51 49 50.4 V V00
2021-11-28 13:05:39 C 08 35 44.857 +52 16 24.90 U F52
2021-11-28 13:23:10 C 08 35 44.185 +52 16 43.27 U F52
2021-11-28 13:40:36 C 08 35 43.473 +52 17 01.59 U F52
2021-11-28 13:57:59 C 08 35 42.782 +52 17 19.89 U F52
2021-12-12 10:30:21 C 08 14 43.12 +57 58 43.9 V G96
2021-12-12 10:38:42 C 08 14 42.32 +57 58 52.0 V G96
2021-12-12 10:47:28 C 08 14 41.55 +57 59 00.5 V G96
2021-12-12 10:56:28 C 08 14 40.69 +57 59 09.0 V G96
2022-02-05 06:53:57 C 05 29 32.56 +62 33 22.4 V V00
2022-02-05 07:02:36 C 05 29 32.07 +62 33 19.1 V V00
2022-02-05 07:11:14 C 05 29 31.59 +62 33 15.6 V V00
2022-02-05 07:19:54 C 05 29 31.06 +62 33 11.8 V V00
2022-03-01 04:48:35 C 05 19 29.46 +58 51 14.2 V V00
2022-03-01 04:55:38 C 05 19 29.56 +58 51 11.6 V V00
2022-03-01 05:02:39 C 05 19 29.63 +58 51 09.1 V V00