549948 (2011 WL2)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2834152050 ± 9.27e-08
Semi-major axis (a)1.0775855510 AU ± 1.77e-09
Inclination (i)14.13113315° ± 5.36e-06
Long. of Asc. Node (Ω)212.90079715° ± 2.20e-05
Arg. of Perihelion (ω)88.87219654° ± 1.23e-05
Mean Anomaly (M)268.24637821° ± 3.66e-05
Mean Motion (n)0.8811191436°/day ± 2.17e-09
Perihelion dist (q)0.77218142 AU ± 9.99e-08
Aphelion dist (Q)1.38298968 AU ± 9.99e-08
Orbital Period1.11860727 yr ± 2.75e-09
Physical Parameters
H (abs. magnitude)20.84
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.299″
Uncertainty0
Orbit TypeApollo
MOID0.000687 AU
Observations Used273
Oppositions1
Arc Total2010-2021
First Observation Used2010-04-14
Last Observation Used2021-01-17
Observations (286)
Date Type RA Dec Mag Band Observatory
2011-11-18 03:34:37 C 03 37 45.71 -21 14 31.0 o 807
2011-11-18 03:39:32 C 03 37 45.11 -21 14 32.4 o 807
2011-11-18 03:44:31 C 03 37 44.49 -21 14 34.1 o 807
2011-11-18 03:49:24 C 03 37 43.91 -21 14 35.7 o 807
2011-11-18 03:54:13 C 03 37 43.31 -21 14 37.2 o 807
2011-11-18 04:02:51 C 03 37 42.27 -21 14 40.0 o 807
2011-11-18 06:07:12 C 03 37 29.53 -21 16 09.6 o 291
2011-11-18 06:09:49 C 03 37 29.22 -21 16 10.1 o 291
2011-11-18 06:12:24 C 03 37 28.90 -21 16 11.1 o 291
2011-11-18 06:24:08 C 03 37 27.19 -21 16 15.8 18.5 c 704
2011-11-18 06:43:50 C 03 37 24.83 -21 16 21.8 18.5 c 704
2011-11-18 07:02:07 C 03 37 22.62 -21 16 27.6 18.5 c 704
2011-11-18 07:20:29 C 03 37 20.35 -21 16 32.8 18.5 c 704
2011-11-18 07:38:56 C 03 37 18.17 -21 16 37.9 18.5 c 704
2011-11-18 14:00:17 C 03 36 38.69 -21 17 28.9 o E23
2011-11-18 14:09:44 C 03 36 37.57 -21 17 32.9 o E23
2011-11-18 14:20:36 C 03 36 36.33 -21 17 35.2 o E23
2011-11-19 04:02:32 C 03 35 13.80 -21 21 02.9 o 807
2011-11-19 04:07:02 C 03 35 13.30 -21 21 04.0 o 807
2011-11-19 04:11:32 C 03 35 12.78 -21 21 04.9 o 807
2011-11-19 04:16:01 C 03 35 12.27 -21 21 06.0 o 807
2011-11-19 04:22:41 C 03 35 11.52 -21 21 07.7 o 807
2011-11-20 06:25:10 C 03 32 41.09 -21 25 55.8 o 807
2011-11-20 06:31:33 C 03 32 40.45 -21 25 56.4 o 807
2011-11-20 06:42:40 C 03 32 39.32 -21 25 57.7 o 807
2011-11-20 06:52:17 C 03 32 38.33 -21 25 59.0 o 807
2011-11-21 06:31:05 C 03 30 33.73 -21 28 40.5 o 807
2011-11-21 06:42:23 C 03 30 32.64 -21 28 40.8 o 807
2011-11-22 03:40:57 C 03 28 53.28 -21 30 33.1 o G48
2011-11-22 03:43:24 C 03 28 53.07 -21 30 33.1 o G48
2011-11-22 03:45:55 C 03 28 52.87 -21 30 33.8 o G48
2011-11-22 03:48:24 C 03 28 52.63 -21 30 33.6 o G48
2011-11-22 03:50:54 C 03 28 52.39 -21 30 33.9 o G48
2011-11-22 04:27:37 C 03 28 47.32 -21 29 53.4 o 807
2011-11-22 04:30:37 C 03 28 47.04 -21 29 53.5 o 807
2011-11-22 04:33:37 C 03 28 46.77 -21 29 53.6 o 807
2011-11-22 04:36:37 C 03 28 46.49 -21 29 53.6 o 807
2011-11-22 04:39:36 C 03 28 46.22 -21 29 53.7 o 807
2011-11-22 04:42:35 C 03 28 45.94 -21 29 53.8 o 807
2011-11-22 04:46:08 C 03 28 45.60 -21 29 53.8 o 807
2011-11-23 00:13:38 C 03 27 18.98 -21 29 50.4 o 807
2011-11-23 00:18:40 C 03 27 18.58 -21 29 50.7 o 807
2011-11-23 00:23:36 C 03 27 18.17 -21 29 50.9 o 807
2011-11-23 00:28:31 C 03 27 17.77 -21 29 51.0 o 807
2011-11-23 00:33:25 C 03 27 17.37 -21 29 51.2 o 807
2011-11-23 00:38:18 C 03 27 16.97 -21 29 51.6 o 807
2011-11-23 21:39:57 C 03 25 44.40 -21 29 50.0 o 046
2011-11-23 21:43:43 C 03 25 44.17 -21 29 50.0 o 046
2011-11-23 21:45:31 C 03 25 44.02 -21 29 49.0 o 046
2011-11-23 21:49:03 C 03 25 43.81 -21 29 48.7 o 046