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
2017-07-30 23:55:42 S 02 10 37.190 +20 54 36.54 L C51
2017-07-31 03:04:12 S 02 11 09.578 +20 54 57.35 L C51
2017-07-31 12:29:53 S 02 12 46.40 +20 55 52.4 L C51
2017-07-31 18:47:05 S 02 13 50.73 +20 56 26.7 L C51
2017-08-01 04:12:45 S 02 15 26.85 +20 57 13.8 L C51
2017-08-01 07:21:26 S 02 15 58.80 +20 57 28.4 L C51
2017-08-01 10:29:57 S 02 16 30.65 +20 57 42.4 L C51
2017-08-01 16:47:08 S 02 17 34.22 +20 58 07.9 L C51
2017-08-01 19:55:37 S 02 18 05.88 +20 58 20.8 L C51
2017-08-01 23:04:08 S 02 18 37.46 +20 58 32.5 L C51
2017-08-02 02:12:38 S 02 19 09.024 +20 58 43.54 L C51
2017-08-04 13:37:26 C 02 28 55.896 +21 00 35.27 L F51
2017-08-04 13:55:09 C 02 28 58.678 +21 00 35.56 L F51
2017-08-04 14:12:56 C 02 29 01.468 +21 00 35.88 L F51
2017-08-04 14:30:50 C 02 29 04.262 +21 00 36.19 L F51
2017-08-22 18:48:42 C 03 29 11.77 +19 51 43.8 q D29
2017-08-22 19:11:36 C 03 29 14.37 +19 51 36.7 q D29
2017-08-22 19:34:31 C 03 29 16.84 +19 51 30.4 q D29
2017-09-24 10:41:34 C 04 22 38.75 +14 13 36.6 q 703
2017-09-24 10:49:15 C 04 22 38.86 +14 13 31.5 q 703
2017-09-24 10:56:52 C 04 22 39.07 +14 13 26.7 q 703
2017-09-24 11:04:28 C 04 22 39.08 +14 13 22.0 q 703
2017-09-24 12:49:20 C 04 22 41.748 +14 12 31.80 L F51
2017-09-24 13:08:40 C 04 22 42.091 +14 12 21.79 L F51
2017-09-24 13:27:59 C 04 22 42.429 +14 12 11.77 L F51
2017-09-26 09:53:59 C 04 23 33.43 +13 48 43.3 q G96
2017-09-26 10:01:24 C 04 23 33.51 +13 48 39.5 q G96
2017-09-26 10:08:51 C 04 23 33.61 +13 48 35.6 q G96
2017-09-26 10:16:16 C 04 23 33.71 +13 48 31.6 q G96
2017-09-28 11:02:04 C 04 24 13.26 +13 22 35.7 q 703
2017-09-28 11:10:29 C 04 24 13.40 +13 22 32.2 q 703
2017-09-28 11:18:52 C 04 24 13.39 +13 22 27.7 q 703
2017-09-28 11:27:10 C 04 24 13.50 +13 22 22.4 q 703
2017-10-01 09:16:44 C 04 24 41.97 +12 44 57.1 q 703
2017-10-01 09:31:07 C 04 24 41.91 +12 44 49.0 q 703
2017-10-01 09:38:18 C 04 24 41.99 +12 44 45.5 q 703
2017-10-12 18:08:42 C 04 21 22.74 +10 18 55.1 q D29
2017-10-12 18:34:10 C 04 21 21.94 +10 18 41.7 q D29
2017-10-12 18:59:36 C 04 21 21.15 +10 18 27.9 q D29
2017-10-13 10:35:38 C 04 20 55.71 +10 10 16.8 U 703
2017-10-13 10:42:39 C 04 20 55.42 +10 10 13.8 U 703
2017-10-13 10:49:40 C 04 20 55.24 +10 10 10.1 U 703
2017-10-13 10:56:40 C 04 20 55.00 +10 10 06.9 U 703
2017-10-15 10:12:09 C 04 19 29.66 +09 45 35.6 U G96
2017-10-15 10:30:57 C 04 19 28.97 +09 45 26.2 U G96
2017-10-15 10:38:25 C 04 19 28.71 +09 45 22.2 U G96
2017-10-15 10:45:51 C 04 19 28.43 +09 45 18.4 U G96
2017-10-16 08:45:03 C 04 18 44.89 +09 34 02.1 U 703
2017-10-16 08:52:44 C 04 18 44.60 +09 33 59.2 U 703
2017-10-16 09:00:23 C 04 18 44.27 +09 33 54.5 U 703