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
2011-11-24 06:04:43 C 03 25 07.78 -21 28 15.6 18.3 u I36
2011-11-24 06:17:51 C 03 25 06.81 -21 28 14.4 18.3 u I36
2011-11-24 06:29:48 C 03 25 05.91 -21 28 13.0 18.3 u I36
2011-11-24 08:13:30 C 03 24 59.85 -21 28 52.8 o 291
2011-11-24 08:17:40 C 03 24 59.51 -21 28 52.1 o 291
2011-11-24 08:21:55 C 03 24 59.18 -21 28 51.6 o 291
2011-11-25 07:31:54 C 03 23 32.047 -21 26 09.25 L F51
2011-11-25 07:50:21 C 03 23 30.699 -21 26 07.30 L F51
2011-11-25 08:08:42 C 03 23 29.343 -21 26 05.31 L F51
2011-11-25 08:26:15 C 03 23 28.049 -21 26 03.30 L F51
2011-11-26 05:45:49 C 03 22 11.17 -21 22 49.6 o 291
2011-11-26 05:50:09 C 03 22 10.89 -21 22 49.2 o 291
2011-11-26 05:54:31 C 03 22 10.58 -21 22 47.7 o 291
2011-11-26 13:48:19 C 03 21 42.15 -21 20 32.2 o 474
2011-11-26 13:51:49 C 03 21 41.93 -21 20 31.6 o 474
2011-11-26 13:55:30 C 03 21 41.70 -21 20 30.8 o 474
2011-11-27 05:02:52 C 03 20 54.15 -21 18 17.4 o 291
2011-11-27 05:07:30 C 03 20 53.84 -21 18 16.2 o 291
2011-11-27 05:12:08 C 03 20 53.56 -21 18 15.4 o 291
2011-11-28 05:45:57 C 03 19 37.91 -21 12 32.1 u 448
2011-11-28 06:04:26 C 03 19 36.80 -21 12 27.7 u 448
2011-11-28 06:17:23 C 03 19 36.23 -21 12 24.4 o 291
2011-11-28 06:22:18 C 03 19 35.94 -21 12 23.1 o 291
2011-11-28 06:22:32 C 03 19 35.71 -21 12 22.7 u 448
2011-11-28 06:27:07 C 03 19 35.66 -21 12 21.7 o 291
2011-11-28 21:47:33 C 03 18 52.38 -21 08 23.9 o 046
2011-11-28 21:55:14 C 03 18 51.86 -21 08 22.3 o 046
2011-11-28 21:57:48 C 03 18 51.77 -21 08 20.5 o 046
2011-11-28 22:00:19 C 03 18 51.56 -21 08 21.0 o 046
2011-11-28 22:02:49 C 03 18 51.48 -21 08 19.3 o 046
2011-11-29 05:04:35 C 03 18 33.08 -21 06 15.7 o 291
2011-11-29 05:09:49 C 03 18 32.79 -21 06 14.1 o 291
2011-11-29 05:15:00 C 03 18 32.53 -21 06 12.8 o 291
2011-11-29 11:53:19 C 03 18 14.13 -21 03 33.7 o 474
2011-11-29 11:58:10 C 03 18 13.88 -21 03 32.3 o 474
2011-11-29 12:02:59 C 03 18 13.64 -21 03 30.9 o 474
2011-11-30 05:06:05 C 03 17 31.44 -20 59 01.3 o 291
2011-11-30 05:11:30 C 03 17 31.16 -20 58 59.7 o 291
2011-11-30 05:16:54 C 03 17 30.90 -20 58 58.2 o 291
2011-11-30 06:08:50 C 03 17 27.49 -20 58 43.7 o H21
2011-11-30 06:16:07 C 03 17 27.13 -20 58 41.5 o H21
2011-11-30 06:21:34 C 03 17 26.87 -20 58 39.8 o H21
2011-11-30 06:25:35 C 03 17 26.69 -20 58 38.2 o H21
2011-11-30 06:29:29 C 03 17 26.50 -20 58 37.1 o H21
2011-12-01 13:37:50 C 03 16 15.21 -20 47 20.5 o 474
2011-12-01 13:41:09 C 03 16 14.99 -20 47 19.6 o 474
2011-12-01 13:44:10 C 03 16 14.92 -20 47 18.4 o 474
2011-12-01 13:47:40 C 03 16 14.75 -20 47 17.2 o 474
2011-12-04 03:59:48 C 03 14 20.13 -20 23 44.3 u 448
2011-12-04 04:26:56 C 03 14 19.21 -20 23 33.1 u 448