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
2020-12-12 09:27:19 C 06 05 57.84 -18 06 37.0 V G96
2020-12-12 09:34:28 C 06 05 57.04 -18 06 39.4 V G96
2020-12-12 09:41:38 C 06 05 56.12 -18 06 42.3 V G96
2020-12-12 09:48:48 C 06 05 55.18 -18 06 45.3 V G96
2020-12-22 05:57:27 C 05 38 27.62 -18 45 07.9 o 691
2020-12-22 06:07:18 C 05 38 26.55 -18 45 07.5 o 691
2020-12-22 06:17:08 C 05 38 25.46 -18 45 06.5 o 691
2020-12-22 10:32:35 C 05 37 57.928 -18 44 40.55 U F51
2020-12-22 10:47:34 C 05 37 56.246 -18 44 38.99 U F51
2020-12-22 11:02:32 C 05 37 54.570 -18 44 37.55 U F51
2021-01-02 07:51:06 C 05 14 32.76 -17 23 59.3 o 691
2021-01-02 08:18:36 C 05 14 30.65 -17 23 46.0 o 691
2021-01-02 08:46:07 C 05 14 28.59 -17 23 32.3 o 691
2021-01-03 07:45:32 C 05 12 51.57 -17 11 56.9 o 691
2021-01-03 08:09:06 C 05 12 49.83 -17 11 45.1 o 691
2021-01-03 08:32:40 C 05 12 48.13 -17 11 33.0 o 691
2021-01-04 06:53:21 C 05 11 18.38 -16 59 44.4 V 291
2021-01-04 07:04:37 C 05 11 17.59 -16 59 38.4 V 291
2021-01-04 07:15:55 C 05 11 16.78 -16 59 32.3 V 291
2021-01-04 08:49:50 C 05 11 11.028 -16 58 38.97 U F51
2021-01-04 09:06:45 C 05 11 09.831 -16 58 29.72 U F51
2021-01-04 09:23:36 C 05 11 08.654 -16 58 20.65 U F51
2021-01-04 09:40:27 C 05 11 07.443 -16 58 11.20 U F51
2021-01-08 09:44:23 C 05 05 29.139 -16 01 42.71 U F51
2021-01-08 09:59:57 C 05 05 28.252 -16 01 32.58 U F51
2021-01-08 10:15:45 C 05 05 27.349 -16 01 22.60 U F51
2021-01-08 10:31:22 C 05 05 26.473 -16 01 12.67 U F51
2021-01-12 05:30:39 C 05 01 17.02 -15 01 06.2 o 691
2021-01-12 05:40:02 C 05 01 16.62 -15 00 59.8 o 691
2021-01-12 05:49:26 C 05 01 16.23 -15 00 53.3 o 691
2021-01-17 07:08:48 C 04 57 25.429 -13 33 31.18 U F51
2021-01-17 07:26:13 C 04 57 24.933 -13 33 18.17 U F51
2021-01-17 07:43:38 C 04 57 24.442 -13 33 05.34 U F51
2021-01-17 07:50:00 C 04 57 24.254 -13 33 00.65 U F51
2021-01-17 08:08:00 C 04 57 23.751 -13 32 47.21 U F51
2021-01-17 08:25:55 C 04 57 23.233 -13 32 33.86 U F51