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
2021-10-31 08:40:14 C 03 57 57.37 +06 31 29.2 V 703
2021-10-31 10:26:50 C 03 57 51.72 +06 30 51.9 V T05
2021-10-31 10:32:07 C 03 57 51.43 +06 30 49.3 V T05
2021-10-31 10:40:44 C 03 57 50.91 +06 30 46.8 V T05
2021-10-31 10:56:11 C 03 57 49.98 +06 30 40.6 V T05
2021-11-01 11:34:26 C 03 56 27.251 +06 21 25.56 U F52
2021-11-01 11:52:09 C 03 56 26.184 +06 21 19.04 U F52
2021-11-01 12:09:46 C 03 56 25.122 +06 21 12.48 U F52
2021-11-01 12:27:21 C 03 56 24.070 +06 21 06.01 U F52
2021-11-03 07:20:51 C 03 53 59.23 +06 05 45.3 V 703
2021-11-03 07:28:24 C 03 53 58.76 +06 05 42.4 V 703
2021-11-03 07:35:58 C 03 53 58.33 +06 05 40.6 V 703
2021-11-03 07:43:31 C 03 53 57.83 +06 05 38.1 V 703
2021-11-03 16:20:56 C 03 53 28.572 +06 02 53.95 V P07
2021-11-03 17:27:58 C 03 53 24.494 +06 02 31.09 V P07
2021-11-03 18:49:43 C 03 53 19.548 +06 02 03.01 V P07
2021-11-03 19:14:21 C 03 53 18.077 +06 01 54.62 V P07
2021-11-04 12:07:44 C 03 52 20.67 +05 56 07.1 V T05
2021-11-04 12:49:11 C 03 52 18.15 +05 55 53.3 V T05
2021-11-04 12:54:42 C 03 52 17.83 +05 55 51.1 V T05
2021-11-04 13:34:46 C 03 52 15.35 +05 55 39.2 V T05
2021-11-06 15:10:04 C 03 49 26.818 +05 40 17.51 V P07
2021-11-06 15:12:06 C 03 49 26.705 +05 40 17.62 V P07
2021-11-06 16:16:48 C 03 49 22.769 +05 39 57.89 V P07
2021-11-06 18:11:53 C 03 49 15.770 +05 39 23.83 V P07
2021-11-06 19:07:35 C 03 49 12.439 +05 39 06.88 V P07
2021-11-06 20:01:37 C 03 49 09.214 +05 38 50.42 V P07
2021-11-06 20:04:13 C 03 49 09.046 +05 38 50.78 V P07
2021-11-07 07:46:36 C 03 48 29.71 +05 35 13.4 V 703
2021-11-07 07:54:13 C 03 48 29.24 +05 35 10.7 V 703
2021-11-07 08:09:28 C 03 48 28.38 +05 35 06.3 V 703
2021-11-08 15:07:14 C 03 46 43.577 +05 26 42.54 V P07
2021-11-08 16:13:46 C 03 46 39.607 +05 26 24.32 V P07
2021-11-08 17:15:12 C 03 46 35.890 +05 26 08.30 V P07
2021-11-08 18:03:30 C 03 46 33.029 +05 25 54.91 V P07
2021-11-08 19:03:12 C 03 46 29.434 +05 25 38.50 V P07
2021-11-09 07:19:25 C 03 45 48.57 +05 22 13.5 V G96
2021-11-09 07:26:51 C 03 45 48.14 +05 22 11.7 V G96
2021-11-09 07:34:18 C 03 45 47.69 +05 22 10.0 V G96
2021-11-09 07:41:44 C 03 45 47.24 +05 22 07.8 V G96
2021-11-09 15:09:43 C 03 45 22.428 +05 20 25.26 V P07
2021-11-09 17:11:38 C 03 45 15.166 +05 19 54.37 V P07
2021-11-09 19:03:29 C 03 45 08.520 +05 19 25.93 V P07
2021-11-09 19:57:37 C 03 45 05.316 +05 19 11.57 V P07
2021-11-12 10:27:50 C 03 41 38.853 +05 04 36.05 U F51
2021-11-12 10:47:33 C 03 41 37.709 +05 04 31.91 U F51
2021-11-12 11:05:01 C 03 41 36.700 +05 04 28.19 U F51
2021-11-12 11:22:29 C 03 41 35.683 +05 04 24.49 U F51
2021-11-13 06:18:52 C 03 40 34.55 +05 00 29.4 V 703
2021-11-13 06:27:03 C 03 40 34.19 +05 00 27.5 V 703