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
2021-11-13 06:43:24 C 03 40 33.19 +05 00 23.8 V 703
2021-11-13 16:17:28 C 03 40 02.21 +04 58 31.6 V D29
2021-11-13 16:42:55 C 03 40 00.76 +04 58 26.8 V D29
2021-11-13 17:08:22 C 03 39 59.33 +04 58 21.7 V D29
2021-11-14 07:10:48 C 03 39 14.73 +04 55 43.6 V G96
2021-11-14 07:18:55 C 03 39 14.27 +04 55 42.2 V G96
2021-11-14 07:27:04 C 03 39 13.82 +04 55 40.7 V G96
2021-11-14 07:35:12 C 03 39 13.36 +04 55 39.2 V G96
2021-11-23 10:30:40 C 03 28 40.156 +04 30 14.88 U F51
2021-11-23 10:47:02 C 03 28 39.406 +04 30 13.90 U F51
2021-11-23 11:03:25 C 03 28 38.659 +04 30 13.22 U F51
2021-11-26 07:13:04 C 03 25 53.023 +04 28 02.50 U F52
2021-11-26 07:30:37 C 03 25 52.302 +04 28 02.29 U F52
2021-11-26 07:48:17 C 03 25 51.570 +04 28 02.12 U F52
2021-12-02 05:14:36 C 03 21 01.34 +04 31 22.4 V G96
2021-12-02 05:22:05 C 03 21 01.10 +04 31 22.9 V G96
2021-12-02 05:29:31 C 03 21 00.86 +04 31 23.3 V G96
2021-12-02 05:37:00 C 03 21 00.60 +04 31 23.7 V G96
2025-05-21 09:49:11 C 20 37 44.512 -03 07 31.48 V G96
2025-05-21 09:56:39 C 20 37 45.530 -03 07 24.20 V G96
2025-05-21 10:04:06 C 20 37 46.574 -03 07 17.29 V G96
2025-05-21 10:11:34 C 20 37 47.640 -03 07 10.20 V G96
2025-05-28 12:35:25 C 21 03 04.407 -00 17 40.75 X F52
2025-05-28 12:46:23 C 21 03 06.066 -00 17 29.29 X F52
2025-05-28 12:57:24 C 21 03 07.730 -00 17 17.77 X F52
2025-05-28 13:08:25 C 21 03 09.386 -00 17 06.34 X F52
2025-05-30 12:56:15 C 21 10 36.428 +00 33 21.30 X F52
2025-05-30 13:13:42 C 21 10 39.116 +00 33 40.06 X F52
2025-05-30 13:31:04 C 21 10 41.790 +00 33 58.54 X F52
2025-05-30 13:48:29 C 21 10 44.476 +00 34 17.12 X F52
2025-06-04 13:45:59 C 21 30 11.759 +02 45 49.22 X F51
2025-06-04 14:02:56 C 21 30 14.520 +02 46 08.44 X F51
2025-06-04 14:19:58 C 21 30 17.305 +02 46 27.55 X F51
2025-06-05 09:14:12 C 21 33 27.767 +03 07 41.81 V G96
2025-06-05 09:21:38 C 21 33 29.002 +03 07 50.20 V G96
2025-06-05 09:29:03 C 21 33 30.215 +03 07 58.37 V G96
2025-06-05 09:36:30 C 21 33 31.446 +03 08 07.04 V G96
2025-06-08 09:12:17 C 21 45 46.908 +04 29 51.94 V G96
2025-06-08 09:19:41 C 21 45 48.197 +04 30 00.32 V G96
2025-06-08 09:27:05 C 21 45 49.471 +04 30 08.86 V G96
2025-06-08 09:34:29 C 21 45 50.724 +04 30 17.46 V G96
2025-06-21 10:29:14 C 22 44 08.923 +10 35 01.10 V G96
2025-06-21 10:37:25 C 22 44 10.504 +10 35 10.86 V G96
2025-06-21 10:45:36 C 22 44 12.109 +10 35 19.82 V G96
2025-06-21 10:53:47 C 22 44 13.704 +10 35 29.18 V G96
2025-06-21 12:40:12 C 22 44 35.113 +10 37 34.01 X F52
2025-06-21 12:55:42 C 22 44 38.125 +10 37 51.97 X F52
2025-06-21 13:11:27 C 22 44 41.179 +10 38 10.18 X F52
2025-06-21 13:27:37 C 22 44 44.312 +10 38 28.92 X F52
2025-07-01 13:31:02 C 23 33 51.238 +14 56 02.50 X F51