2011 UN20

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3168208000
Semi-major axis (a)1.5725158000 AU
Inclination (i)13.10351000°
Long. of Asc. Node (Ω)209.93498000°
Arg. of Perihelion (ω)150.91328000°
Mean Anomaly (M)66.29940000°
Mean Motion (n)0.4998176200°/day
Perihelion dist (q)1.07431010 AU
Aphelion dist (Q)2.07072150 AU
Orbital Period1.97193470 yr
Physical Parameters
H (abs. magnitude)23.10
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.360″
Uncertainty5
Orbit TypeAmor
MOID0.098450 AU
Observations Used68
Oppositions1
Arc Total
First Observation Used
Last Observation Used2011-11-17
Observations (69)
Date Type RA Dec Mag Band Observatory
2011-10-24 06:53:51 C 03 50 47.51 +13 05 37.3 t H21
2011-10-24 07:03:58 C 03 50 47.83 +13 04 55.7 t H21
2011-10-24 07:13:44 C 03 50 48.14 +13 04 16.3 t H21
2011-10-24 07:47:37 C 03 50 50.55 +13 02 04.7 o 691
2011-10-24 08:13:12 C 03 50 51.36 +13 00 23.8 o 691
2011-10-24 08:38:47 C 03 50 52.12 +12 58 42.8 o 691
2011-10-24 10:39:25 C 03 50 55.63 +12 50 31.0 o 291
2011-10-24 10:41:51 C 03 50 55.73 +12 50 21.2 o 291
2011-10-24 10:44:17 C 03 50 55.77 +12 50 10.4 o 291
2011-11-02 07:30:01 C 03 56 28.01 +00 46 42.3 o H21
2011-11-02 07:38:18 C 03 56 28.00 +00 46 19.5 o H21
2011-11-02 07:48:07 C 03 56 27.98 +00 45 52.6 o H21
2011-11-02 07:57:55 C 03 56 27.99 +00 45 25.7 o H21
2011-11-16 09:47:12 C 03 56 01.77 -09 47 56.9 o 291
2011-11-16 09:50:55 C 03 56 01.77 -09 48 00.3 o 291
2011-11-16 09:54:38 C 03 56 01.70 -09 48 05.0 o 291
2011-11-17 06:09:05 C 03 55 53.23 -10 10 09.2 o 291
2011-11-17 06:12:55 C 03 55 53.16 -10 10 13.3 o 291
2011-11-17 06:16:46 C 03 55 53.07 -10 10 17.1 o 291