2021 UD11

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5529408000
Semi-major axis (a)1.8194822000 AU
Inclination (i)7.78093000°
Long. of Asc. Node (Ω)90.99978000°
Arg. of Perihelion (ω)212.92255000°
Mean Anomaly (M)267.38703000°
Mean Motion (n)0.4015895000°/day
Perihelion dist (q)0.81341630 AU
Aphelion dist (Q)2.82554810 AU
Orbital Period2.45426650 yr
Physical Parameters
H (abs. magnitude)22.56
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.910″
Uncertainty8
Orbit TypeApollo
MOID0.066235 AU
Observations Used21
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-11-11
Observations (63)
Date Type RA Dec Mag Band Observatory
2026-05-12 03:31:45 C 13 08 15.046 +26 50 27.23 W H01
2026-05-12 03:43:49 C 13 08 12.796 +26 50 45.10 W H01
2026-05-12 03:50:08 C 13 08 11.609 +26 50 54.54 W H01
2026-05-12 04:02:43 C 13 08 09.449 +26 51 14.15 V I52
2026-05-12 04:07:36 C 13 08 08.506 +26 51 20.77 V I52
2026-05-12 04:08:35 C 13 08 08.297 +26 51 22.54 V I52
2026-05-13 23:07:53 C 13 00 11.938 +27 54 16.70 X 033
2026-05-13 23:10:15 C 13 00 11.459 +27 54 20.00 X 033
2026-05-13 23:12:37 C 13 00 11.038 +27 54 23.00 X 033
2026-05-14 03:46:24 C 12 59 20.278 +28 01 22.91 V I52
2026-05-14 03:47:55 C 12 59 19.910 +28 01 24.89 V I52
2026-05-14 03:50:27 C 12 59 19.432 +28 01 28.70 V I52
2026-05-14 03:51:57 C 12 59 19.108 +28 01 31.04 V I52