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
2010-04-14 04:14:51 C 08 51 59.034 -11 36 52.80 V 703
2010-04-14 04:34:49 C 08 51 56.362 -11 35 33.06 V 703
2010-04-23 13:49:04 S 08 25 36.468 +05 01 14.56 L C51
2010-04-23 16:59:35 S 08 25 14.105 +05 16 21.79 L C51
2010-04-23 18:34:56 S 08 25 02.921 +05 23 55.72 L C51
2010-04-23 21:45:27 S 08 24 40.538 +05 39 04.61 L C51
2011-11-16 07:39:06 C 03 42 47.30 -20 58 24.1 18.2 c 704
2011-11-16 07:57:36 C 03 42 44.77 -20 58 31.9 18.6 c 704
2011-11-16 08:16:04 C 03 42 42.18 -20 58 40.4 18.2 c 704
2011-11-16 08:34:33 C 03 42 39.68 -20 58 48.7 18.4 c 704
2011-11-16 08:53:00 C 03 42 37.10 -20 58 56.5 18.6 c 704
2011-11-17 03:18:19 C 03 40 27.37 -21 05 54.5 u I39
2011-11-17 03:30:05 C 03 40 25.96 -21 05 59.8 u I39
2011-11-17 03:31:39 C 03 40 25.72 -21 06 00.5 u I39
2011-11-17 03:44:05 C 03 40 24.14 -21 06 05.3 u I39
2011-11-17 03:48:08 C 03 40 23.58 -21 06 07.2 u I39
2011-11-17 03:49:58 C 03 40 26.06 -21 07 00.7 o G48
2011-11-17 03:51:19 C 03 40 25.85 -21 07 01.1 o G48
2011-11-17 03:52:41 C 03 40 25.69 -21 07 01.3 o G48
2011-11-17 03:54:00 C 03 40 25.54 -21 07 01.8 o G48
2011-11-17 03:55:20 C 03 40 25.39 -21 07 02.7 o G48
2011-11-17 03:56:38 C 03 40 25.19 -21 07 03.4 o G48
2011-11-17 03:59:05 C 03 40 24.74 -21 07 05.9 o H01
2011-11-17 04:10:19 C 03 40 23.47 -21 07 09.8 o G48
2011-11-17 04:11:21 C 03 40 21.29 -21 06 20.3 o 807
2011-11-17 04:11:54 C 03 40 20.48 -21 06 16.5 u I39
2011-11-17 04:13:03 C 03 40 23.12 -21 07 11.0 o G48
2011-11-17 04:13:16 C 03 40 22.95 -21 07 12.2 o H01
2011-11-17 04:14:23 C 03 40 22.96 -21 07 11.1 o G48
2011-11-17 04:15:44 C 03 40 20.74 -21 06 22.4 o 807
2011-11-17 04:17:05 C 03 40 22.65 -21 07 12.3 o G48
2011-11-17 04:20:25 C 03 40 20.10 -21 06 23.9 o 807
2011-11-17 04:22:40 C 03 40 21.73 -21 07 16.3 o H01
2011-11-17 04:22:55 C 03 40 19.08 -21 06 20.5 u I39
2011-11-17 04:24:48 C 03 40 19.55 -21 06 25.7 o 807
2011-11-17 04:29:12 C 03 40 18.98 -21 06 27.6 o 807
2011-11-17 04:30:55 C 03 40 20.71 -21 07 20.1 o H01
2011-11-17 04:33:22 C 03 40 17.76 -21 06 24.9 u I39
2011-11-17 04:34:16 C 03 40 18.30 -21 06 29.9 o 807
2011-11-17 05:54:08 C 03 40 09.38 -21 07 58.3 u H36
2011-11-17 05:56:07 C 03 40 09.74 -21 07 55.3 18.3 c 704
2011-11-17 05:58:27 C 03 40 08.83 -21 08 00.1 u H36
2011-11-17 06:02:50 C 03 40 08.24 -21 08 02.0 u H36
2011-11-17 06:33:19 C 03 40 04.91 -21 08 10.8 18.8 c 704
2011-11-17 06:51:27 C 03 40 02.59 -21 08 17.3 18.8 c 704
2011-11-17 07:10:54 C 03 40 00.14 -21 08 25.2 18.6 c 704
2011-11-17 23:08:18 C 03 38 13.66 -21 14 06.9 t 204
2011-11-17 23:17:26 C 03 38 12.57 -21 14 09.8 t 204
2011-11-17 23:26:33 C 03 38 11.46 -21 14 12.6 t 204
2011-11-18 03:29:47 C 03 37 46.27 -21 14 29.4 o 807