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
2025-10-27 19:45:17 C 03 54 18.76 +06 37 22.2 V D29
2025-10-27 20:05:39 C 03 54 17.63 +06 37 13.4 V D29
2025-10-27 20:26:00 C 03 54 16.50 +06 37 04.4 V D29
2025-10-27 22:04:48 C 03 54 12.278 +06 36 40.46 V M22
2025-10-27 22:12:02 C 03 54 11.832 +06 36 35.86 V M22
2025-10-27 22:47:06 C 03 54 09.946 +06 36 21.49 V M22
2025-10-27 22:51:06 C 03 54 09.636 +06 36 19.19 V M22
2025-10-27 23:00:57 C 03 54 09.137 +06 36 15.30 V M22
2025-10-27 23:08:07 C 03 54 08.717 +06 36 11.77 V M22
2025-10-28 17:21:51 C 03 53 10.29 +06 28 15.0 V D29
2025-10-28 17:42:13 C 03 53 09.10 +06 28 07.0 V D29
2025-10-28 18:02:35 C 03 53 07.93 +06 27 58.4 V D29
2025-10-29 07:21:58 C 03 52 25.410 +06 22 28.70 V G96
2025-10-29 07:29:26 C 03 52 24.989 +06 22 25.93 V G96
2025-10-29 07:36:53 C 03 52 24.542 +06 22 22.98 V G96
2025-10-29 07:44:20 C 03 52 24.146 +06 22 19.81 V G96
2025-10-30 21:45:49 C 03 50 20.381 +06 07 28.13 V M22
2025-10-30 23:18:50 C 03 50 14.976 +06 06 51.52 V M22
2025-10-30 23:26:41 C 03 50 14.448 +06 06 48.28 V M22
2025-10-30 23:30:35 C 03 50 14.191 +06 06 46.73 V M22
2025-10-31 10:53:30 C 03 49 36.926 +06 02 12.24 X F51
2025-10-31 11:09:57 C 03 49 35.954 +06 02 06.01 X F51
2025-10-31 11:42:55 C 03 49 34.012 +06 01 53.43 X F51
2025-11-11 18:07:42 C 03 34 45.01 +04 41 22.2 V D29
2025-11-11 18:28:04 C 03 34 43.86 +04 41 17.9 V D29
2025-11-11 18:48:26 C 03 34 42.70 +04 41 15.7 V D29
2025-11-13 17:25:13 C 03 32 17.940 +04 32 14.21 V P07
2025-11-13 17:58:01 C 03 32 16.178 +04 32 08.41 V P07
2025-11-13 18:17:01 C 03 32 15.156 +04 32 04.63 V P07
2025-11-13 19:41:48 C 03 32 10.591 +04 31 49.22 V P07
2025-11-13 20:04:55 C 03 32 09.413 +04 31 46.09 V P07
2025-11-13 20:05:31 C 03 32 09.298 +04 31 44.87 V P07
2025-11-14 07:05:51 C 03 31 36.541 +04 29 36.92 V G96
2025-11-14 07:13:18 C 03 31 36.134 +04 29 35.38 V G96
2025-11-14 07:20:46 C 03 31 35.749 +04 29 34.30 V G96
2025-11-14 07:28:12 C 03 31 35.321 +04 29 32.96 V G96
2025-11-16 23:33:03 C 03 28 26.285 +04 19 47.75 V R17
2025-11-16 23:53:27 C 03 28 25.236 +04 19 45.12 V R17
2025-11-17 00:13:48 C 03 28 24.221 +04 19 42.46 V R17
2025-11-17 00:34:12 C 03 28 23.191 +04 19 39.97 V R17
2025-11-19 15:39:41 C 03 25 27.95 +04 12 36.1 V D29
2025-11-19 16:00:03 C 03 25 26.99 +04 12 34.6 V D29
2025-11-19 16:20:25 C 03 25 26.03 +04 12 32.7 V D29
2025-11-20 23:45:41 B 03 24 03.456 +04 09 57.17 X K19
2025-11-20 23:50:58 B 03 24 03.257 +04 09 56.52 X K19
2025-11-20 23:56:13 B 03 24 02.954 +04 09 56.20 X K19
2025-11-21 15:57:56 C 03 23 22.198 +04 09 04.14 V P07
2025-11-21 17:41:14 C 03 23 17.585 +04 08 57.05 V P07
2025-11-21 18:03:30 C 03 23 16.579 +04 08 56.29 V P07
2025-11-21 18:45:37 C 03 23 14.657 +04 08 54.56 V P07