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
2009-11-22 07:47:01 C 04 04 45.44 +06 57 44.8 r 703
2009-11-22 07:56:34 C 04 04 44.94 +06 57 44.1 r 703
2009-11-22 08:05:59 C 04 04 44.40 +06 57 43.1 r 703
2009-11-22 08:15:35 C 04 04 43.75 +06 57 39.9 r 703
2009-11-22 08:25:03 C 04 04 43.32 +06 57 39.0 r 703
2009-11-22 09:21:05 C 04 04 39.93 +06 57 31.8 r 703
2009-11-22 09:24:38 C 04 04 39.75 +06 57 32.1 r 703
2009-11-22 09:28:16 C 04 04 39.46 +06 57 31.8 r 703
2009-11-22 09:31:50 C 04 04 39.32 +06 57 31.1 r 703
2009-11-22 09:35:28 C 04 04 39.10 +06 57 29.9 r 703
2009-11-23 04:50:15 C 04 03 35.31 +06 55 07.0 o H01
2009-11-23 04:55:36 C 04 03 35.00 +06 55 06.3 o H01
2009-11-23 05:04:24 C 04 03 34.50 +06 55 05.4 o H01
2009-11-23 05:10:25 C 04 03 34.15 +06 55 04.6 o H01
2009-11-23 06:27:17 C 04 03 29.52 +06 54 55.1 o H21
2009-11-23 06:34:31 C 04 03 29.10 +06 54 54.0 o H21
2009-11-23 06:41:12 C 04 03 28.71 +06 54 53.2 o H21
2013-10-02 09:46:41 C 04 53 40.02 +14 01 19.2 q 703
2013-10-02 09:57:17 C 04 53 40.04 +14 01 13.4 q 703
2013-10-02 10:07:50 C 04 53 40.14 +14 01 08.7 q 703
2013-10-02 10:18:17 C 04 53 40.31 +14 01 05.6 q 703
2013-10-12 06:38:34 C 04 52 54.54 +12 20 21.6 V G45
2013-10-12 08:02:48 C 04 52 52.98 +12 19 46.1 V G45
2013-10-12 08:12:05 C 04 52 52.82 +12 19 41.0 V G45
2013-10-12 11:53:44 C 04 52 48.68 +12 18 07.4 V G45
2013-10-26 08:13:23 C 04 42 26.97 +10 01 17.0 o 926
2013-10-26 08:37:06 C 04 42 25.87 +10 01 08.8 o 926
2013-10-26 08:57:59 C 04 42 24.87 +10 01 01.0 o 926
2013-10-26 09:43:37 C 04 42 22.65 +10 00 43.6 q 703
2013-10-26 09:57:42 C 04 42 21.94 +10 00 37.6 q 703
2013-10-26 10:11:46 C 04 42 21.31 +10 00 32.6 q 703
2013-10-26 11:13:24 C 04 42 18.37 +10 00 08.6 q 703
2013-10-26 11:23:10 C 04 42 17.84 +10 00 04.6 q 703
2013-10-26 11:28:04 C 04 42 17.53 +10 00 03.0 q 703
2013-10-26 12:27:51 C 04 42 14.78 +09 59 39.2 o 291
2013-10-26 12:32:51 C 04 42 14.55 +09 59 37.3 o 291
2013-10-26 12:37:51 C 04 42 14.32 +09 59 35.4 o 291
2013-10-27 01:50:49 C 04 41 38.66 +09 54 28.1 u I93
2013-10-27 02:13:30 C 04 41 37.51 +09 54 19.6 u I93
2013-10-27 02:37:39 C 04 41 36.38 +09 54 11.2 u I93
2013-10-27 07:55:38 C 04 41 21.70 +09 52 10.9 u H21
2013-10-27 08:09:16 C 04 41 21.02 +09 52 05.5 u H21
2013-10-27 08:23:12 C 04 41 20.35 +09 52 00.2 u H21
2013-10-27 09:12:29 C 04 41 18.10 +09 51 43.3 o 711
2013-10-27 09:19:22 C 04 41 17.75 +09 51 40.7 o 711
2013-10-27 09:24:32 C 04 41 17.49 +09 51 38.8 o 711
2013-10-30 13:13:10 C 04 37 34.094 +09 23 33.16 L F51
2013-10-30 13:31:35 C 04 37 33.088 +09 23 26.51 L F51
2013-10-30 13:50:31 C 04 37 32.037 +09 23 19.52 L F51
2013-11-03 14:22:20 C 04 32 19.837 +08 49 56.26 L F51