2011 HR4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2208846000
Semi-major axis (a)0.9160745000 AU
Inclination (i)8.13551000°
Long. of Asc. Node (Ω)47.09594000°
Arg. of Perihelion (ω)348.62039000°
Mean Anomaly (M)45.45901000°
Mean Motion (n)1.1241075500°/day
Perihelion dist (q)0.71372780 AU
Aphelion dist (Q)1.11842120 AU
Orbital Period0.87679120 yr
Physical Parameters
H (abs. magnitude)24.55
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.210″
Uncertainty9
Orbit TypeAten
MOID0.076480 AU
Observations Used11
Oppositions1
Arc Total
First Observation Used
Last Observation Used2011-04-27
Observations (11)
Date Type RA Dec Mag Band Observatory
2011-04-26 09:29:15 C 14 10 53.11 +04 46 22.6 r G96
2011-04-26 09:40:47 C 14 10 49.76 +04 46 09.9 r G96
2011-04-26 09:52:36 C 14 10 46.30 +04 45 57.3 r G96
2011-04-26 10:04:24 C 14 10 42.88 +04 45 44.6 r G96
2011-04-26 11:18:51 C 14 10 21.53 +04 44 22.4 r G96
2011-04-26 11:19:36 C 14 10 21.14 +04 44 21.4 r G96
2011-04-26 11:20:22 C 14 10 20.92 +04 44 20.2 r G96
2011-04-26 11:21:06 C 14 10 20.78 +04 44 19.3 r G96
2011-04-27 08:36:27 C 14 04 30.11 +04 20 56.7 r G96
2011-04-27 08:44:51 C 14 04 27.64 +04 20 47.2 r G96
2011-04-27 09:01:34 C 14 04 22.74 +04 20 28.1 r G96