2021 XY4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5943171000
Semi-major axis (a)1.8417881000 AU
Inclination (i)7.78480000°
Long. of Asc. Node (Ω)72.37722000°
Arg. of Perihelion (ω)292.68266000°
Mean Anomaly (M)226.95176000°
Mean Motion (n)0.3943161600°/day
Perihelion dist (q)0.74718190 AU
Aphelion dist (Q)2.93639430 AU
Orbital Period2.49953660 yr
Physical Parameters
H (abs. magnitude)23.66
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.570″
Uncertainty7
Orbit TypeApollo
MOID0.004921 AU
Observations Used105
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-12-21
Observations (108)
Date Type RA Dec Mag Band Observatory
2021-12-13 05:46:56 C 03 39 42.38 +40 14 31.8 V G96
2021-12-13 05:55:15 C 03 39 48.45 +40 14 37.3 V G96
2021-12-16 21:58:33 C 04 22 45.14 +40 18 54.2 V 203
2021-12-16 22:40:40 C 04 22 56.78 +40 18 44.8 V 203
2021-12-19 03:38:51 C 04 36 00.62 +40 05 30.1 V 695
2021-12-19 04:02:48 C 04 36 04.86 +40 05 26.1 V 695
2021-12-21 17:26:48 C 04 46 11.37 +39 47 47.4 V 033
2021-12-21 17:27:57 C 04 46 11.50 +39 47 46.5 V 033