518771 (2009 WL1)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3346816409 ± 5.05e-08
Semi-major axis (a)1.7863789503 AU ± 3.18e-09
Inclination (i)29.01946320° ± 6.23e-06
Long. of Asc. Node (Ω)64.98337555° ± 4.54e-06
Arg. of Perihelion (ω)323.06174134° ± 1.22e-05
Mean Anomaly (M)273.26831701° ± 1.31e-05
Mean Motion (n)0.4128115951°/day ± 1.10e-09
Perihelion dist (q)1.18851071 AU ± 9.02e-08
Aphelion dist (Q)2.38424719 AU ± 9.03e-08
Orbital Period2.38759351 yr ± 6.38e-09
Physical Parameters
H (abs. magnitude)18.52
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.248″
Uncertainty0
Orbit TypeAmor
MOID0.249138 AU
Observations Used258
Oppositions9
Arc Total2009-2025
First Observation Used2009-11-17
Last Observation Used2025-06-18
Observations (275)
Date Type RA Dec Mag Band Observatory
2009-12-10 09:01:54 C 06 21 17.12 +55 27 06.8 u H45
2009-12-10 09:03:31 C 06 21 16.87 +55 27 10.7 u H45
2009-12-10 09:05:09 C 06 21 16.70 +55 27 14.2 u H45
2009-12-10 21:59:39 C 06 19 40.29 +55 56 14.8 c A48
2009-12-10 22:04:54 C 06 19 39.55 +55 56 27.1 c A48
2009-12-10 22:10:10 C 06 19 38.86 +55 56 39.2 c A48
2009-12-10 22:16:12 C 06 19 37.91 +55 56 53.9 c A48
2009-12-11 00:19:27 C 06 19 20.28 +56 01 26.6 19.3 o C20
2009-12-11 00:25:48 C 06 19 19.42 +56 01 40.6 19.4 o C20
2009-12-12 02:16:17 C 06 15 58.55 +56 57 27.4 o H26
2009-12-12 02:18:36 C 06 15 58.22 +56 57 32.2 o H26
2009-12-12 02:20:57 C 06 15 57.94 +56 57 37.2 o H26
2009-12-12 02:23:16 C 06 15 57.61 +56 57 42.4 o H26
2009-12-12 02:25:36 C 06 15 57.26 +56 57 47.7 o H26
2009-12-12 02:27:55 C 06 15 56.98 +56 57 52.5 o H26
2009-12-17 01:28:23 C 05 58 48.31 +60 38 51.5 18.5 o C20
2009-12-17 01:30:30 C 05 58 47.99 +60 38 54.9 18.4 o C20
2009-12-27 22:54:32 C 05 18 45.41 +65 31 00.4 o J95
2009-12-27 23:00:04 C 05 18 44.59 +65 31 04.2 o J95
2009-12-27 23:05:36 C 05 18 43.73 +65 31 08.1 o J95
2010-01-13 04:05:26 C 04 40 18.74 +67 17 12.8 o H21
2010-01-13 04:08:46 C 04 40 18.58 +67 17 12.7 o H21
2010-01-13 04:13:13 C 04 40 18.36 +67 17 12.6 o H21
2010-01-13 04:17:07 C 04 40 18.13 +67 17 12.5 o H21
2010-02-08 02:38:18 C 04 54 29.56 +65 24 02.7 o H21
2010-02-08 02:54:39 C 04 54 30.75 +65 23 58.1 o H21
2010-02-08 03:09:24 C 04 54 31.75 +65 23 53.8 o H21
2011-04-30 07:33:36 C 17 03 23.12 -18 42 43.6 o 807
2011-04-30 07:54:52 C 17 03 22.30 -18 42 52.3 o 807
2011-04-30 08:24:03 C 17 03 21.14 -18 43 03.3 o 807
2011-05-01 07:30:12 C 17 02 27.25 -18 52 06.9 o 807
2011-05-01 07:59:29 C 17 02 26.03 -18 52 18.5 o 807
2011-05-01 08:29:06 C 17 02 24.83 -18 52 30.7 o 807
2011-05-04 05:01:39 C 16 59 29.66 -19 20 07.9 o 807
2011-05-04 05:19:17 C 16 59 28.86 -19 20 15.4 o 807
2011-05-04 05:36:51 C 16 59 28.02 -19 20 23.0 o 807
2013-03-22 09:23:12 C 15 05 10.37 +15 34 40.5 u H21
2013-03-22 09:37:57 C 15 05 09.90 +15 34 44.6 u H21
2013-03-22 09:53:57 C 15 05 09.35 +15 34 48.5 u H21
2014-12-27 14:55:23 C 12 41 43.794 +38 29 31.62 L F51
2014-12-27 15:10:36 C 12 41 44.727 +38 29 39.91 L F51
2014-12-27 15:13:27 C 12 41 44.920 +38 29 41.50 L F51
2014-12-27 15:25:50 C 12 41 45.693 +38 29 48.20 L F51
2014-12-27 15:28:41 C 12 41 45.850 +38 29 49.79 L F51
2014-12-27 15:41:03 C 12 41 46.629 +38 29 56.51 L F51
2014-12-27 15:43:53 C 12 41 46.800 +38 29 58.02 L F51
2016-11-05 00:05:26 C 21 42 44.53 -56 27 52.4 u 807
2016-11-05 00:11:00 C 21 42 45.37 -56 27 43.1 u 807
2016-11-05 00:16:33 C 21 42 46.21 -56 27 33.6 u 807
2016-11-29 04:58:08 C 23 00 47.899 -36 26 36.10 L F51