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
2025-07-01 13:47:33 C 23 33 54.600 +14 56 18.72 X F51
2025-07-01 14:20:42 C 23 34 01.385 +14 56 51.44 X F51
2025-07-24 13:35:27 C 01 28 29.978 +20 55 26.73 X F52
2025-07-24 13:46:35 C 01 28 32.091 +20 55 30.18 X F52
2025-07-24 13:53:05 C 01 28 33.326 +20 55 32.16 X F52
2025-07-24 14:04:04 C 01 28 35.396 +20 55 35.51 X F52
2025-07-24 14:10:32 C 01 28 36.619 +20 55 37.46 X F52
2025-07-24 14:21:33 C 01 28 38.710 +20 55 40.84 X F52
2025-07-24 14:39:09 C 01 28 42.044 +20 55 46.11 X F52
2025-08-18 11:31:41 C 03 06 30.785 +20 40 06.10 V T05
2025-08-18 11:43:38 C 03 06 32.321 +20 40 02.93 V T05
2025-08-18 11:55:33 C 03 06 33.830 +20 39 59.83 V T05
2025-08-18 12:07:30 C 03 06 35.378 +20 39 57.06 V T05
2025-08-20 14:29:45 C 03 12 56.249 +20 25 18.98 V T05
2025-08-20 14:42:24 C 03 12 57.708 +20 25 15.10 V T05
2025-08-20 14:54:23 C 03 12 59.158 +20 25 11.78 V T05
2025-08-20 15:06:19 C 03 13 00.535 +20 25 08.58 V T05
2025-08-21 13:44:43 C 03 15 46.191 +20 18 02.50 X F52
2025-08-21 14:21:47 C 03 15 50.459 +20 17 51.00 X F52
2025-08-21 14:40:31 C 03 15 52.608 +20 17 45.24 X F52
2025-08-23 14:38:28 C 03 21 29.683 +20 01 45.80 V T05
2025-08-23 14:40:27 C 03 21 29.918 +20 01 45.44 V T05
2025-08-23 14:50:28 C 03 21 31.034 +20 01 41.92 V T05
2025-08-23 14:52:27 C 03 21 31.236 +20 01 41.48 V T05
2025-08-23 15:02:26 C 03 21 32.311 +20 01 38.46 V T05
2025-08-23 15:04:25 C 03 21 32.520 +20 01 37.63 V T05
2025-08-23 15:16:21 C 03 21 33.864 +20 01 32.59 V T05
2025-08-28 13:40:51 C 03 34 12.197 +19 17 04.42 V T08
2025-08-28 13:53:09 C 03 34 13.349 +19 16 59.81 V T08
2025-08-28 14:05:29 C 03 34 14.578 +19 16 54.62 V T08
2025-08-28 14:17:49 C 03 34 15.679 +19 16 50.02 V T08
2025-08-30 02:19:08 C 03 37 45.910 +19 01 56.75 V R17
2025-08-30 02:47:13 C 03 37 48.530 +19 01 45.80 V R17
2025-08-30 03:09:22 C 03 37 50.549 +19 01 36.52 V R17
2025-08-30 03:31:10 C 03 37 52.502 +19 01 28.24 V R17
2025-08-30 13:35:41 C 03 38 49.207 +18 57 17.03 V T05
2025-08-30 13:49:28 C 03 38 50.414 +18 57 10.66 V T05
2025-08-30 13:53:28 C 03 38 50.767 +18 57 08.64 V T05
2025-08-30 14:07:20 C 03 38 51.996 +18 57 03.17 V T05
2025-08-31 09:31:58 C 03 40 39.598 +18 48 41.29 V G96
2025-08-31 09:39:27 C 03 40 40.228 +18 48 38.23 V G96
2025-08-31 09:46:55 C 03 40 40.890 +18 48 35.14 V G96
2025-08-31 09:54:22 C 03 40 41.538 +18 48 32.18 V G96
2025-09-01 13:40:21 C 03 43 09.869 +18 36 29.23 V T05
2025-09-01 13:45:10 C 03 43 10.320 +18 36 27.58 V T05
2025-09-01 13:53:17 C 03 43 10.997 +18 36 24.52 V T05
2025-09-01 14:07:49 C 03 43 12.197 +18 36 17.42 V T05
2025-09-03 13:20:50 C 03 47 11.617 +18 15 02.35 X F52
2025-09-03 13:39:11 C 03 47 13.024 +18 14 54.11 X F52
2025-09-03 13:57:54 C 03 47 14.460 +18 14 45.72 X F52