499307 (2009 WC52)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5541735048 ± 2.78e-08
Semi-major axis (a)2.5216824044 AU ± 4.05e-09
Inclination (i)7.15379425° ± 2.64e-06
Long. of Asc. Node (Ω)178.63347776° ± 1.94e-05
Arg. of Perihelion (ω)149.27769926° ± 2.02e-05
Mean Anomaly (M)28.32506445° ± 2.74e-06
Mean Motion (n)0.2461368816°/day ± 5.94e-10
Perihelion dist (q)1.12423283 AU ± 7.02e-08
Aphelion dist (Q)3.91913198 AU ± 7.04e-08
Orbital Period4.00438275 yr ± 9.66e-09
Physical Parameters
H (abs. magnitude)18.68
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.263″
Uncertainty0
Orbit TypeAmor
MOID0.127084 AU
Observations Used503
Oppositions12
Arc Total2009-2025
First Observation Used2009-11-22
Last Observation Used2025-12-25
Observations (569)
Date Type RA Dec Mag Band Observatory
2017-10-16 09:08:00 C 04 18 44.00 +09 33 51.0 U 703
2017-10-19 14:05:51 C 04 15 49.872 +08 55 18.93 L F51
2017-10-19 14:23:05 C 04 15 49.103 +08 55 10.32 L F51
2017-10-19 14:40:21 C 04 15 48.331 +08 55 01.86 L F51
2017-10-21 09:43:26 C 04 13 59.44 +08 34 05.8 U 703
2017-10-21 09:51:21 C 04 13 59.08 +08 34 01.4 U 703
2017-10-21 09:59:16 C 04 13 58.74 +08 33 58.5 U 703
2017-10-21 10:07:09 C 04 13 58.35 +08 33 54.1 U 703
2017-10-23 08:48:18 C 04 11 51.27 +08 11 54.7 U G96
2017-10-23 08:55:48 C 04 11 50.89 +08 11 51.1 U G96
2017-10-23 09:03:20 C 04 11 50.51 +08 11 47.7 U G96
2017-10-23 09:10:48 C 04 11 50.13 +08 11 44.2 U G96
2017-10-24 08:25:22 C 04 10 43.78 +08 01 04.5 U 703
2017-10-24 08:33:38 C 04 10 43.35 +08 01 00.1 U 703
2017-10-24 08:41:46 C 04 10 42.93 +08 00 56.1 U 703
2017-10-24 08:49:50 C 04 10 42.55 +08 00 53.3 U 703
2017-10-27 07:54:39 C 04 07 08.45 +07 29 34.8 U 703
2017-10-27 08:10:03 C 04 07 07.65 +07 29 28.6 U 703
2017-10-27 08:17:45 C 04 07 07.18 +07 29 24.1 U 703
2017-10-27 11:19:14 C 04 06 57.752 +07 28 10.31 L F51
2017-10-27 11:35:38 C 04 06 56.836 +07 28 03.45 L F51
2017-10-27 12:08:28 C 04 06 54.990 +07 27 49.53 L F51
2017-10-29 11:43:30 C 04 04 23.510 +07 08 09.05 L F51
2017-10-29 12:01:41 C 04 04 22.457 +07 08 01.74 L F51
2017-11-10 16:36:28 C 03 47 53.72 +05 32 35.3 q D29
2017-11-10 16:59:23 C 03 47 52.38 +05 32 29.4 q D29
2017-11-10 17:22:18 C 03 47 51.04 +05 32 23.4 q D29
2017-11-15 07:22:02 C 03 41 48.97 +05 09 18.3 U 703
2017-11-15 07:29:42 C 03 41 48.46 +05 09 17.2 U 703
2017-11-15 07:37:23 C 03 41 48.08 +05 09 15.3 U 703
2017-11-15 07:45:03 C 03 41 47.63 +05 09 13.4 U 703
2017-11-22 07:23:29 C 03 33 26.82 +04 48 07.1 U G96
2017-11-22 07:31:38 C 03 33 26.41 +04 48 06.4 U G96
2017-11-22 07:41:18 C 03 33 25.97 +04 48 04.9 U G96
2017-11-22 07:49:28 C 03 33 25.55 +04 48 05.7 U G96
2017-11-24 08:10:34 C 03 31 16.73 +04 45 04.8 U G96
2017-11-24 08:22:11 C 03 31 16.20 +04 45 04.4 U G96
2017-11-24 08:29:41 C 03 31 15.85 +04 45 03.7 U G96
2017-11-24 08:37:16 C 03 31 15.50 +04 45 03.5 U G96
2017-12-11 08:31:50 C 03 18 59.274 +05 06 51.92 U F51
2017-12-11 08:47:18 C 03 18 58.976 +05 06 53.99 U F51
2017-12-11 09:02:53 C 03 18 58.672 +05 06 56.21 U F51
2017-12-11 09:18:21 C 03 18 58.379 +05 06 58.32 U F51
2018-01-05 05:52:26 C 03 19 43.232 +07 18 02.64 U F51
2018-01-05 06:08:47 C 03 19 43.489 +07 18 07.16 U F51
2018-01-05 06:25:06 C 03 19 43.749 +07 18 11.66 U F51
2018-01-05 06:41:28 C 03 19 43.994 +07 18 15.86 U F51
2021-05-15 13:08:19 C 20 23 54.982 -05 01 22.95 U F51
2021-05-15 13:24:16 C 20 23 57.140 -05 01 08.82 U F51
2021-05-15 13:27:04 C 20 23 57.523 -05 01 06.49 U F51