IAA RAS IAA Minor Planet Database

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
2019-12-16 08:15:17 C 01 04 16.31 +78 40 25.3 – U I41
2019-12-16 08:17:14 C 01 04 15.86 +78 40 25.6 – U I41
2019-12-16 08:44:24 S 00 59 04.903 +78 44 46.28 – V C57
2019-12-16 09:44:24 S 00 58 49.790 +78 44 50.10 – V C57
2019-12-16 10:14:24 S 00 58 41.530 +78 44 50.17 – V C57
2019-12-16 10:44:24 S 00 58 33.768 +78 44 53.48 – V C57
2019-12-16 11:44:24 S 00 58 18.247 +78 44 52.51 – V C57
2019-12-16 12:14:24 S 00 58 09.785 +78 45 02.95 – V C57
2019-12-16 12:44:24 S 00 58 03.557 +78 45 01.80 – V C57
2019-12-16 13:14:24 S 00 57 55.831 +78 44 56.44 – V C57
2019-12-16 13:44:24 S 00 57 46.486 +78 45 01.08 – V C57
2019-12-16 15:14:24 S 00 57 23.501 +78 45 08.86 – V C57
2019-12-16 15:44:24 S 00 57 16.073 +78 45 06.19 – V C57
2019-12-16 16:14:24 S 00 57 07.886 +78 45 07.27 – V C57
2019-12-16 17:14:24 S 00 56 53.028 +78 45 12.46 – V C57
2019-12-16 18:44:24 S 00 56 30.970 +78 45 21.17 – V C57
2019-12-16 18:44:24 s 1 -11180.429 0 +398059.65 8850.0 – C57
2019-12-16 19:14:24 S 00 56 21.446 +78 45 19.94 – V C57
2019-12-16 19:14:24 s 1 -12162.156 0 +398279.60 1490.0 – C57
2019-12-16 19:44:24 S 00 56 14.719 +78 45 18.86 – V C57
2019-12-16 19:44:24 s 1 -13143.623 0 +398491.39 2030.0 – C57
2019-12-16 20:14:24 S 00 56 07.152 +78 45 24.73 – V C57
2019-12-16 20:14:24 s 1 -14124.809 0 +398695.02 520.0 – C57
2019-12-16 20:44:24 S 00 55 59.832 +78 45 21.31 – V C57
2019-12-16 20:44:24 s 1 -15105.694 0 +398890.50 7000.0 – C57
2019-12-16 21:14:24 S 00 55 51.787 +78 45 21.56 – V C57
2019-12-16 21:14:24 s 1 -16086.256 0 +399077.86 1530.0 – C57
2019-12-16 21:44:24 S 00 55 45.557 +78 45 27.79 – V C57
2019-12-16 21:44:24 s 1 -17066.477 0 +399257.09 4150.0 – C57
2019-12-16 22:14:24 S 00 55 37.915 +78 45 25.81 – V C57
2019-12-16 22:14:24 s 1 -18046.334 0 +399428.20 4900.0 – C57
2019-12-16 22:44:24 S 00 55 29.335 +78 45 33.05 – V C57
2019-12-16 22:44:24 s 1 -19025.808 0 +399591.22 3830.0 – C57
2019-12-16 23:44:24 S 00 55 14.544 +78 45 29.81 – V C57
2019-12-16 23:44:24 s 1 -20983.526 0 +399892.96 6450.0 – C57
2019-12-17 00:14:24 S 00 55 05.438 +78 45 32.54 – V C57
2019-12-17 00:14:24 s 1 -21961.729 0 +400031.71 220.0 – C57
2019-12-17 00:44:24 S 00 54 59.071 +78 45 32.22 – V C57
2019-12-17 00:44:24 s 1 -22939.468 0 +400162.40 2360.0 – C57
2019-12-17 01:14:24 S 00 54 53.810 +78 45 29.05 – V C57
2019-12-17 01:14:24 s 1 -23916.723 0 +400285.02 2920.0 – C57
2019-12-17 01:44:24 S 00 54 45.106 +78 45 39.49 – V C57
2019-12-17 01:44:24 s 1 -24893.474 0 +400399.60 1950.0 – C57
2019-12-17 02:14:24 S 00 54 37.913 +78 45 37.30 – V C57
2019-12-17 02:14:24 s 1 -25869.701 0 +400506.13 9480.0 – C57
2019-12-17 03:14:24 S 00 54 23.237 +78 45 36.36 – V C57
2019-12-17 03:14:24 s 1 -27820.503 0 +400695.09 260.0 – C57
2019-12-17 04:44:24 S 00 54 00.353 +78 45 38.74 – V C57
2019-12-17 04:44:24 s 1 -30742.279 0 +400918.41 6410.0 – C57
2019-12-17 05:14:24 S 00 53 55.541 +78 45 45.32 – V C57