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
2025-09-03 14:16:54 C 03 47 15.911 +18 14 37.17 X F52
2025-09-08 12:23:45 C 03 56 01.854 +17 18 11.75 X F51
2025-09-08 12:43:13 C 03 56 03.073 +17 18 02.29 X F51
2025-09-08 13:02:44 C 03 56 04.301 +17 17 52.86 X F51
2025-09-08 13:22:25 C 03 56 05.527 +17 17 43.35 X F51
2025-09-15 08:03:53 C 04 05 18.698 +15 53 52.91 V W68
2025-09-15 08:06:32 C 04 05 18.763 +15 53 51.61 V W68
2025-09-15 08:10:29 C 04 05 18.950 +15 53 49.92 V W68
2025-09-15 08:20:20 C 04 05 19.368 +15 53 43.30 V W68
2025-09-16 13:39:16 C 04 06 38.045 +15 37 40.40 V T08
2025-09-16 13:41:56 C 04 06 38.090 +15 37 39.97 V T08
2025-09-16 14:17:26 C 04 06 39.521 +15 37 20.10 V T08
2025-09-16 14:25:34 C 04 06 39.852 +15 37 16.46 V T08
2025-09-22 13:05:30 C 04 11 29.700 +14 17 58.67 V T08
2025-09-22 13:07:29 C 04 11 29.791 +14 17 57.80 V T08
2025-09-22 13:37:41 C 04 11 30.389 +14 17 41.32 V T08
2025-09-22 13:55:35 C 04 11 30.698 +14 17 30.95 V T08
2025-09-25 09:59:02 C 04 12 55.184 +13 38 35.30 V G96
2025-09-25 10:06:26 C 04 12 55.278 +13 38 30.98 V G96
2025-09-25 10:13:49 C 04 12 55.382 +13 38 26.84 V G96
2025-09-25 10:21:12 C 04 12 55.462 +13 38 22.60 V G96
2025-09-25 12:14:42 C 04 12 57.632 +13 37 20.47 X F52
2025-09-25 12:49:24 C 04 12 58.043 +13 37 00.80 X F52
2025-09-25 13:06:45 C 04 12 58.247 +13 36 50.89 X F52
2025-09-30 02:57:16 C 04 14 00.830 +12 33 15.12 V R17
2025-09-30 03:17:39 C 04 14 00.809 +12 33 03.67 V R17
2025-09-30 03:38:01 C 04 14 00.773 +12 32 51.32 V R17
2025-09-30 03:58:23 C 04 14 00.722 +12 32 39.73 V R17
2025-10-02 12:17:48 C 04 13 59.568 +11 59 57.41 V T08
2025-10-02 12:25:43 C 04 13 59.513 +11 59 53.30 V T08
2025-10-02 12:31:21 C 04 13 59.450 +11 59 49.34 V T08
2025-10-02 12:46:01 C 04 13 59.352 +11 59 40.88 V T08
2025-10-05 09:33:21 C 04 13 28.211 +11 19 41.56 V G96
2025-10-05 09:40:44 C 04 13 28.103 +11 19 37.27 V G96
2025-10-05 09:48:06 C 04 13 27.980 +11 19 33.06 V G96
2025-10-05 09:55:31 C 04 13 27.872 +11 19 28.60 V G96
2025-10-16 10:56:52 C 04 06 54.228 +08 50 28.24 X F52
2025-10-16 11:12:23 C 04 06 53.593 +08 50 20.00 X F52
2025-10-16 11:27:55 C 04 06 52.953 +08 50 11.72 X F52
2025-10-23 01:14:50 C 04 00 07.358 +07 29 32.28 V R17
2025-10-23 01:34:20 C 04 00 06.367 +07 29 22.96 V R17
2025-10-23 01:53:51 C 04 00 05.338 +07 29 13.70 V R17
2025-10-23 02:13:45 C 04 00 04.318 +07 29 03.95 V R17
2025-10-27 16:45:19 C 03 54 28.994 +06 38 53.41 V P07
2025-10-27 16:46:32 C 03 54 28.956 +06 38 52.91 V P07
2025-10-27 17:50:43 C 03 54 25.282 +06 38 25.76 V P07
2025-10-27 18:48:59 C 03 54 21.962 +06 38 00.38 V P07
2025-10-27 18:49:07 C 03 54 21.926 +06 37 59.95 V P07
2025-10-27 19:40:44 C 03 54 19.080 +06 37 37.92 V P07
2025-10-27 19:41:38 C 03 54 19.018 +06 37 37.74 V P07