412976 (1987 WC)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2336615193 ± 2.00e+00
Semi-major axis (a)1.3620233617 AU ± 3.00e+00
Inclination (i)15.84502330° ± 4.00e+00
Long. of Asc. Node (Ω)51.80641043° ± 5.00e+00
Arg. of Perihelion (ω)308.37961376° ± 6.00e+00
Mean Anomaly (M)5.03230320° ± 1.26e-05
Mean Motion (n)0.6200624629°/day ± 2.05e+00
Perihelion dist (q)1.04377091 AU ± 3.56e+00
Aphelion dist (Q)1.68027581 AU ± 4.60e+00
Orbital Period1.58955967 yr ± 5.25e+00
NGA Modelr2
A27.85276901e-06 AU/d²
Physical Parameters
H (abs. magnitude)19.91
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.318″
Uncertainty0
Orbit TypeAmor
MOID0.114184 AU
Observations Used304
Oppositions14
Arc Total1987-2026
First Observation Used1987-11-21
Last Observation Used2026-01-07
Observations (326)
Date Type RA Dec Mag Band Observatory
2015-01-16 04:21:38 C 02 43 51.72 +43 33 48.7 q G96
2015-01-16 04:34:23 C 02 43 52.93 +43 33 51.8 q G96
2015-01-18 03:27:21 C 02 48 49.63 +43 48 23.3 q G96
2015-01-18 03:35:17 C 02 48 50.42 +43 48 25.4 q G96
2015-01-18 03:43:13 C 02 48 51.21 +43 48 27.9 q G96
2017-04-03 10:05:36 C 14 24 21.54 +07 04 39.1 q G96
2017-04-03 10:11:43 C 14 24 21.11 +07 04 39.6 q G96
2017-04-03 10:17:51 C 14 24 20.65 +07 04 41.0 q G96
2017-04-03 10:24:01 C 14 24 20.20 +07 04 41.2 q G96
2017-04-06 09:01:44 C 14 19 12.61 +07 10 05.7 q G96
2017-04-06 09:07:52 C 14 19 12.12 +07 10 06.5 q G96
2017-04-06 09:13:59 C 14 19 11.63 +07 10 06.7 q G96
2017-04-06 09:20:08 C 14 19 11.18 +07 10 06.5 q G96
2017-04-16 06:12:45 C 13 59 17.10 +07 08 48.9 q G96
2017-04-16 06:14:08 C 13 59 16.92 +07 08 48.4 q G96
2017-04-16 06:15:45 C 13 59 16.80 +07 08 48.4 q G96
2017-04-16 06:17:09 C 13 59 16.68 +07 08 48.5 q G96
2017-05-22 05:35:13 C 12 52 34.80 +01 41 58.3 q G96
2017-05-22 05:41:15 C 12 52 34.50 +01 41 54.1 q G96
2017-05-22 05:53:15 C 12 52 34.04 +01 41 46.3 q G96
2020-01-01 10:25:33 C 12 18 53.12 +26 29 27.1 u H21
2020-01-01 10:34:54 C 12 18 53.62 +26 29 30.2 u H21
2020-01-01 10:47:11 C 12 18 54.21 +26 29 34.7 u H21
2020-01-02 10:04:52 C 12 20 05.66 +26 37 39.6 u H21
2020-01-02 10:11:17 C 12 20 06.00 +26 37 42.3 u H21
2020-01-02 10:17:08 C 12 20 06.24 +26 37 44.8 u H21
2020-01-04 11:43:58 C 12 22 30.24 +26 55 54.8 V G96
2020-01-04 11:51:20 C 12 22 30.57 +26 55 57.9 V G96
2020-01-04 11:58:42 C 12 22 30.90 +26 56 00.7 V G96
2020-01-05 10:17:44 C 12 23 32.53 +27 04 36.9 u H21
2020-01-05 10:29:09 C 12 23 33.03 +27 04 41.6 u H21
2020-01-05 10:46:59 C 12 23 33.78 +27 04 48.8 u H21
2020-01-06 09:11:48 C 12 24 33.66 +27 13 44.6 u H21
2020-01-06 09:21:01 C 12 24 34.08 +27 13 48.6 u H21
2020-01-31 11:04:09 C 12 34 49.61 +32 48 33.3 V G96
2020-01-31 11:11:41 C 12 34 49.49 +32 48 38.5 V G96
2020-01-31 11:19:14 C 12 34 49.35 +32 48 43.6 V G96
2020-04-15 01:49:48 C 10 39 02.01 +33 43 07.2 u H21
2020-04-15 02:07:45 C 10 39 01.60 +33 42 53.2 u H21
2020-04-15 02:21:21 C 10 39 01.27 +33 42 43.3 u H21
2020-04-19 08:44:17 C 10 37 32.148 +32 23 41.02 U F52
2020-04-19 09:00:16 C 10 37 31.930 +32 23 27.94 U F52
2020-04-19 09:16:13 C 10 37 31.755 +32 23 15.19 U F52
2022-09-17 11:41:55 C 05 52 21.162 -10 45 21.96 V G96
2022-09-17 11:50:00 C 05 52 21.943 -10 45 09.68 V G96
2022-09-17 11:58:05 C 05 52 22.681 -10 44 57.91 V G96
2022-09-17 12:06:12 C 05 52 23.430 -10 44 45.35 V G96
2022-10-28 12:56:40 C 07 13 38.512 +19 28 54.57 U F52
2022-10-28 12:58:28 C 07 13 38.601 +19 28 58.75 U F52
2022-10-28 13:13:56 C 07 13 39.394 +19 29 33.35 U F52