IAA RAS IAA Minor Planet Database

2021 XU1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3220544942 ± 1.08e-03
Semi-major axis (a)1.4155368714 AU ± 2.15e-03
Inclination (i)13.38609595° ± 3.39e-02
Long. of Asc. Node (Ω)243.40746955° ± 3.66e-03
Arg. of Perihelion (ω)132.43182068° ± 8.27e-03
Mean Anomaly (M)157.29011926° ± 2.01e+00
Mean Motion (n)0.5852352771°/day ± 1.33e-03
Perihelion dist (q)0.95965686 AU ± 2.11e-03
Aphelion dist (Q)1.87141688 AU ± 3.23e-03
Orbital Period1.68415392 yr ± 3.83e-03
Physical Parameters
H (abs. magnitude)25.03
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.245″
Uncertainty4
Orbit TypeApollo
MOID0.041075 AU
Observations Used16
Oppositions1
Arc Total2021-2021
First Observation Used2021-12-02
Last Observation Used2021-12-04
Observations (16)
Date Type RA Dec Mag Band Observatory
2021-12-02 07:21:52 C 05 27 11.73 +02 19 12.6 – V G96
2021-12-02 07:29:16 C 05 27 11.28 +02 18 42.6 – V G96
2021-12-02 07:36:42 C 05 27 10.84 +02 18 12.1 – V G96
2021-12-02 10:10:45 C 05 27 01.38 +02 07 42.7 – V I52
2021-12-02 10:12:34 C 05 27 01.31 +02 07 34.7 – V I52
2021-12-02 10:14:23 C 05 27 01.22 +02 07 27.9 – V I52
2021-12-03 06:12:45 C 05 26 21.15 +00 50 16.0 – V I52
2021-12-03 06:14:17 C 05 26 21.08 +00 50 10.1 – V I52
2021-12-03 08:23:23 C 05 26 13.57 +00 42 17.1 – V G96
2021-12-03 08:30:49 C 05 26 13.16 +00 41 49.9 – V G96
2021-12-03 08:38:15 C 05 26 12.75 +00 41 23.3 – V G96
2021-12-03 08:45:42 C 05 26 12.30 +00 40 55.8 – V G96
2021-12-03 08:55:39 C 05 26 12.34 +00 40 16.8 – V 673
2021-12-03 09:29:07 C 05 26 10.42 +00 38 15.5 – V 673
2021-12-04 05:24:14 C 05 25 30.63 -00 30 44.4 – u H21
2021-12-04 05:29:15 C 05 25 30.38 -00 31 00.7 – u H21