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
2025-11-21 19:05:42 C 03 23 13.836 +04 08 52.55 V P07
2025-11-27 07:18:16 C 03 18 13.945 +04 05 48.75 X F52
2025-11-27 07:35:10 C 03 18 13.337 +04 05 48.90 X F52
2025-11-27 07:52:03 C 03 18 12.719 +04 05 49.18 X F52
2025-11-27 08:08:52 C 03 18 12.101 +04 05 49.57 X F52
2025-12-11 06:51:21 C 03 10 33.913 +04 37 15.71 V G96
2025-12-11 06:59:31 C 03 10 33.827 +04 37 16.90 V G96
2025-12-11 07:07:40 C 03 10 33.694 +04 37 18.34 V G96
2025-12-11 07:15:48 C 03 10 33.596 +04 37 19.45 V G96
2025-12-11 09:09:35 C 03 10 32.382 +04 37 39.72 X F51
2025-12-11 09:28:02 C 03 10 32.123 +04 37 42.89 X F51
2025-12-11 09:46:27 C 03 10 31.857 +04 37 45.74 X F51
2025-12-11 10:04:50 C 03 10 31.598 +04 37 48.72 X F51
2025-12-17 07:43:25 C 03 09 29.841 +05 04 07.89 X F52
2025-12-17 08:13:37 C 03 09 29.691 +05 04 14.37 X F52
2025-12-17 08:28:48 C 03 09 29.602 +05 04 17.31 X F52
2025-12-25 06:28:54 C 03 09 59.553 +05 48 04.92 X F51
2025-12-25 06:47:17 C 03 09 59.666 +05 48 09.53 X F51
2025-12-25 07:24:25 C 03 09 59.878 +05 48 18.90 X F51