448818 (2011 UU20)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5247936206 ± 2.57e-08
Semi-major axis (a)2.4846631847 AU ± 9.50e-09
Inclination (i)21.97917377° ± 4.90e-06
Long. of Asc. Node (Ω)355.06236946° ± 6.25e-06
Arg. of Perihelion (ω)137.22164135° ± 1.08e-05
Mean Anomaly (M)170.85348878° ± 3.91e-06
Mean Motion (n)0.2516581435°/day ± 1.44e-09
Perihelion dist (q)1.18072780 AU ± 6.41e-08
Aphelion dist (Q)3.78859857 AU ± 6.55e-08
Orbital Period3.91652847 yr ± 2.25e-08
Physical Parameters
H (abs. magnitude)17.80
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.619″
Uncertainty0
Orbit TypeAmor
MOID0.261270 AU
Observations Used1198
Oppositions16
Arc Total2003-2024
First Observation Used2003-09-29
Last Observation Used2024-05-07
Observations (1671)
Date Type RA Dec Mag Band Observatory
2003-09-29 06:44:00 C 23 40 56.088 +00 47 49.02 e 645
2003-09-29 06:49:00 C 23 40 55.821 +00 47 48.58 22.87 e 645
2003-10-18 03:25:29 C 23 18 33.547 +00 18 24.12 n 645
2003-10-18 03:30:16 C 23 18 33.346 +00 18 23.80 n 645
2003-10-24 04:12:33 C 23 12 48.154 +00 14 21.59 n 645
2003-10-24 04:17:19 C 23 12 47.978 +00 14 21.19 n 645
2007-09-13 10:34:35 C 00 34 58.36 +09 33 50.4 o 291
2007-09-13 10:48:12 C 00 34 57.71 +09 33 51.3 o 291
2007-09-13 11:01:55 C 00 34 57.07 +09 33 52.7 o 291
2011-10-19 06:22:39 C 00 28 24.499 +21 55 21.51 L F51
2011-10-19 06:42:36 C 00 28 23.050 +21 55 21.99 L F51
2011-10-19 07:22:42 C 00 28 20.130 +21 55 22.81 L F51
2011-10-20 03:02:32 C 00 26 56.18 +21 55 43.4 o 807
2011-10-20 03:08:43 C 00 26 55.75 +21 55 43.2 o 807
2011-10-20 03:27:40 C 00 26 54.38 +21 55 43.5 o 807
2011-10-20 03:33:38 C 00 26 53.93 +21 55 43.6 o 807
2011-10-20 04:49:26 C 00 26 48.57 +21 55 35.9 u H36
2011-10-20 04:58:04 C 00 26 47.96 +21 55 36.1 u H36
2011-10-20 05:06:43 C 00 26 47.31 +21 55 36.1 u H36
2011-10-20 06:39:42 C 00 26 41.03 +21 55 39.1 o F65
2011-10-20 06:42:36 C 00 26 40.81 +21 55 39.1 o F65
2011-10-20 06:45:28 C 00 26 40.60 +21 55 39.2 o F65
2011-10-20 06:48:21 C 00 26 40.39 +21 55 39.2 o F65
2011-10-20 06:51:15 C 00 26 40.17 +21 55 39.2 o F65
2011-10-20 19:59:03 C 00 25 44.29 +21 55 40.2 u 118
2011-10-20 20:29:07 C 00 25 42.09 +21 55 40.0 u 118
2011-10-20 20:39:07 C 00 25 41.43 +21 55 40.4 u 118
2011-10-21 07:03:13 C 00 24 57.21 +21 55 42.6 o 291
2011-10-21 07:06:25 C 00 24 57.00 +21 55 42.5 o 291
2011-10-21 07:09:36 C 00 24 56.74 +21 55 42.4 o 291
2011-10-23 05:58:15 C 00 21 40.08 +21 55 16.8 o 291
2011-10-23 06:01:26 C 00 21 39.86 +21 55 16.6 o 291
2011-10-23 06:04:40 C 00 21 39.61 +21 55 16.3 o 291
2011-10-26 02:03:59 C 00 16 59.97 +21 53 22.0 o 291
2011-10-26 02:07:09 C 00 16 59.75 +21 53 22.0 o 291
2011-10-26 02:10:21 C 00 16 59.58 +21 53 21.7 o 291
2011-10-28 02:51:17 C 00 13 44.53 +21 51 11.8 o 291
2011-10-28 02:55:58 C 00 13 44.24 +21 51 11.3 o 291
2011-10-28 03:00:38 C 00 13 43.90 +21 51 11.0 o 291
2011-10-30 02:48:01 C 00 10 38.15 +21 48 28.6 o 291
2011-10-30 02:51:12 C 00 10 37.94 +21 48 28.3 o 291
2011-10-30 02:54:24 C 00 10 37.75 +21 48 28.0 o 291
2011-11-01 02:46:47 C 00 07 38.12 +21 45 16.1 o 291
2011-11-01 02:49:58 C 00 07 37.92 +21 45 15.2 o 291
2011-11-01 02:53:08 C 00 07 37.72 +21 45 15.2 o 291
2011-11-02 06:34:29 C 00 05 56.68 +21 43 13.1 o 291
2011-11-02 06:37:50 C 00 05 56.49 +21 43 12.8 o 291
2011-11-02 06:41:14 C 00 05 56.24 +21 43 12.3 o 291
2011-11-03 06:06:00 C 00 04 33.25 +21 41 23.2 o 291
2011-11-03 06:09:22 C 00 04 33.05 +21 41 23.2 o 291