2011 WP4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4143080000
Semi-major axis (a)1.3589968000 AU
Inclination (i)0.95158000°
Long. of Asc. Node (Ω)227.55938000°
Arg. of Perihelion (ω)264.00388000°
Mean Anomaly (M)265.50224000°
Mean Motion (n)0.6221232200°/day
Perihelion dist (q)0.79595360 AU
Aphelion dist (Q)1.92204000 AU
Orbital Period1.58426440 yr
Physical Parameters
H (abs. magnitude)27.15
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.740″
Uncertainty7
Orbit TypeApollo
MOID0.003837 AU
Observations Used59
Oppositions1
Arc Total
First Observation Used
Last Observation Used2011-11-23
Observations (60)
Date Type RA Dec Mag Band Observatory
2011-11-23 02:30:01 C 03 35 33.20 -04 36 27.7 t 204
2011-11-23 02:43:24 C 03 35 40.03 -04 46 42.6 t 204
2011-11-23 03:11:37 C 03 36 03.90 -05 09 54.4 u J95
2011-11-23 03:17:12 C 03 36 06.91 -05 14 19.1 u J95
2011-11-23 03:23:25 C 03 36 10.37 -05 19 15.7 u J95
2011-11-23 04:39:21 C 03 37 33.80 -06 00 07.0 o 807
2011-11-23 04:40:28 C 03 37 34.31 -06 01 04.3 o 807
2011-11-23 04:42:47 C 03 37 35.34 -06 03 02.6 o 807
2011-11-23 05:51:09 C 03 38 02.52 -07 02 25.6 u I20
2011-11-23 05:58:46 C 03 38 06.65 -07 09 23.3 u I20