2011 WN2

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5900198000
Semi-major axis (a)2.3969786000 AU
Inclination (i)5.41704000°
Long. of Asc. Node (Ω)232.44952000°
Arg. of Perihelion (ω)208.69844000°
Mean Anomaly (M)274.28780000°
Mean Motion (n)0.2655876200°/day
Perihelion dist (q)0.98271380 AU
Aphelion dist (Q)3.81124340 AU
Orbital Period3.71104510 yr
Physical Parameters
H (abs. magnitude)25.20
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.590″
Uncertainty7
Orbit TypeApollo
MOID0.021565 AU
Observations Used66
Radar Obs Used1
Oppositions1
Arc Total
First Observation Used
Last Observation Used2011-11-23
Observations (66)
Date Type RA Dec Mag Band Observatory
2011-11-23 00:20:24 C 02 29 29.69 -13 39 33.3 o 807
2011-11-23 03:20:11 C 02 32 59.23 -14 25 42.4 u I20
2011-11-23 03:31:59 C 02 33 13.38 -14 28 46.5 u I20
2011-11-23 03:46:16 C 02 33 30.43 -14 32 27.0 u I20
2011-11-23 03:55:46 C 02 33 41.94 -14 34 54.8 u I20
2011-11-23 05:17:34 C 02 35 32.46 -15 02 59.0 u H36
2011-11-23 05:19:57 C 02 35 35.42 -15 03 36.8 u H36
2011-11-23 05:22:20 C 02 35 38.33 -15 04 14.4 u H36
2011-11-23 05:24:50 C 02 35 41.40 -15 04 53.7 u H36
2011-11-23 05:27:18 C 02 35 44.46 -15 05 33.3 u H36
2011-11-23 21:13:27 C 02 58 31.97 -19 28 30.2 o 246
2011-11-23 21:17:33 C 02 58 38.23 -19 29 42.8 o 246
2011-11-23 21:18:16 C 02 58 39.24 -19 29 54.5 o 246
2011-11-23 21:21:05 C 02 58 43.46 -19 30 43.5 o 246
2011-11-23 21:21:50 C 02 58 44.54 -19 30 56.2 o 246
2011-11-23 21:22:33 C 02 58 45.70 -19 31 09.4 o 246
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2011-11-19 02:10:00 118416.9903 40 Hz 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)