2021 UM9

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6117694000
Semi-major axis (a)2.3191544000 AU
Inclination (i)2.45351000°
Long. of Asc. Node (Ω)35.60183000°
Arg. of Perihelion (ω)55.51903000°
Mean Anomaly (M)41.41007000°
Mean Motion (n)0.2790677000°/day
Perihelion dist (q)0.90036670 AU
Aphelion dist (Q)3.73794210 AU
Orbital Period3.53178690 yr
Physical Parameters
H (abs. magnitude)23.75
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.680″
Uncertainty6
Orbit TypeApollo
MOID0.010814 AU
Observations Used204
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-11-14
Observations (214)
Date Type RA Dec Mag Band Observatory
2021-11-13 13:05:56 C 20 25 52.818 +57 23 04.61 V O85
2021-11-13 13:11:43 C 20 24 58.053 +57 24 48.56 V O85
2021-11-13 13:14:36 C 20 24 30.617 +57 25 39.76 V O85
2021-11-13 13:17:30 C 20 24 03.165 +57 26 30.35 V O85
2021-11-13 13:23:16 C 20 23 08.268 +57 28 10.99 V O85
2021-11-13 13:26:10 C 20 22 40.810 +57 29 00.25 V O85
2021-11-13 13:29:03 C 20 22 13.276 +57 29 49.62 V O85
2021-11-13 13:31:57 C 20 21 45.764 +57 30 38.57 V O85
2021-11-13 13:34:50 C 20 21 18.222 +57 31 27.08 V O85
2021-11-13 13:37:44 C 20 20 50.634 +57 32 15.13 V O85
2021-11-14 02:12:13 C 18 16 09.73 +57 46 25.9 V I52
2021-11-14 02:12:44 C 18 16 04.75 +57 46 16.0 V I52
2021-11-14 02:13:15 C 18 15 59.77 +57 46 06.1 V I52
2021-11-14 02:13:46 C 18 15 54.80 +57 45 56.1 V I52