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
2012-01-18 03:29:43 C 03 34 33.21 -08 47 24.4 o 291
2012-01-19 02:34:57 C 03 35 42.70 -08 31 08.9 o 291
2012-01-19 02:40:09 C 03 35 42.92 -08 31 06.1 o 291
2012-01-19 02:45:19 C 03 35 43.17 -08 31 01.9 o 291
2012-01-20 02:15:00 C 03 36 54.84 -08 14 32.2 o H21
2012-01-20 02:44:38 C 03 36 56.28 -08 14 11.8 o H21
2012-01-21 02:05:29 C 03 38 09.37 -07 57 48.0 o 291
2012-01-21 02:09:39 C 03 38 09.61 -07 57 45.4 o 291
2012-01-21 02:13:47 C 03 38 09.82 -07 57 42.4 o 291
2012-01-29 01:26:36 C 03 48 51.46 -05 45 38.1 u H21
2012-01-29 01:48:41 C 03 48 52.70 -05 45 23.3 u H21
2012-01-29 02:12:56 C 03 48 54.09 -05 45 06.4 u H21
2012-01-29 02:20:15 C 03 48 54.77 -05 45 00.3 o 291
2012-01-29 02:35:45 C 03 48 55.65 -05 44 50.0 o 291
2012-01-29 02:51:46 C 03 48 56.56 -05 44 38.9 o 291
2012-12-06 02:05:04 C 21 47 10.44 -13 21 09.6 o 291
2012-12-06 02:28:32 C 21 47 15.95 -13 21 02.4 o 291
2019-04-08 17:59:09 S 19 22 39.818 -31 33 54.00 L C51
2019-04-08 19:33:13 S 19 23 25.697 -31 26 55.79 L C51
2019-04-09 01:50:02 S 19 26 29.254 -30 58 37.24 L C51
2019-04-23 11:12:52 C 21 48 54.23 -00 00 55.4 V I52
2019-04-23 11:14:40 C 21 48 54.75 -00 00 46.4 V I52
2019-04-23 11:16:28 C 21 48 55.25 -00 00 37.0 V I52
2019-12-21 12:22:06 C 09 39 23.49 -17 40 38.2 o 291
2019-12-21 12:41:30 C 09 39 23.32 -17 40 56.1 o 291
2019-12-21 13:00:55 C 09 39 23.17 -17 41 14.2 o 291
2020-01-05 10:39:34 C 09 30 51.79 -22 49 41.1 o 691
2020-02-02 07:33:05 C 08 36 35.88 -26 33 32.1 o 691
2020-02-02 07:59:33 C 08 36 32.94 -26 33 25.4 o 691
2020-04-18 05:55:30 C 07 56 07.617 +04 21 09.25 U F51
2020-04-18 06:14:42 C 07 56 08.795 +04 21 26.18 U F51
2020-04-18 06:33:59 C 07 56 09.992 +04 21 43.25 U F51
2020-10-14 10:55:05 C 07 41 05.82 +15 30 41.8 V G96
2020-10-14 11:09:47 C 07 41 05.68 +15 30 15.5 V G96
2020-10-14 11:17:09 C 07 41 05.61 +15 30 03.0 V G96
2020-11-20 09:17:42 C 07 06 01.88 -09 22 34.0 o 691
2020-11-20 09:25:43 C 07 06 01.08 -09 22 46.0 o 691
2020-11-20 09:33:44 C 07 06 00.31 -09 22 57.7 o 691
2020-12-04 08:50:13 C 06 29 45.69 -16 01 09.4 o 691
2020-12-04 09:04:37 C 06 29 43.83 -16 01 22.4 o 691
2020-12-04 09:19:01 C 06 29 42.00 -16 01 35.0 o 691
2020-12-07 07:43:04 C 06 21 04.40 -16 57 11.8 o 691
2020-12-07 07:51:18 C 06 21 03.32 -16 57 17.8 o 691
2020-12-07 07:59:32 C 06 21 02.27 -16 57 24.0 o 691
2020-12-09 10:32:23 C 06 14 44.98 -17 30 21.2 o 691
2020-12-09 10:32:23 C 06 14 45.02 -17 30 21.3 o 691
2020-12-09 10:38:43 C 06 14 44.17 -17 30 24.7 o 691
2020-12-09 10:40:50 C 06 14 43.86 -17 30 26.0 o 691
2020-12-09 10:45:04 C 06 14 43.35 -17 30 28.6 o 691
2020-12-09 10:49:18 C 06 14 42.79 -17 30 30.8 o 691