IAA RAS IAA Minor Planet Database

2021 XX1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2431824000
Semi-major axis (a)1.0569916000 AU
Inclination (i)7.34175000°
Long. of Asc. Node (Ω)253.06077000°
Arg. of Perihelion (ω)82.69270000°
Mean Anomaly (M)300.79435000°
Mean Motion (n)0.9069781000°/day
Perihelion dist (q)0.79994980 AU
Aphelion dist (Q)1.31403340 AU
Orbital Period1.08669410 yr
Physical Parameters
H (abs. magnitude)27.82
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date—
RMS Residual0.460″
Uncertainty7
Orbit TypeApollo
MOID0.017525 AU
Observations Used15
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2021-12-04
Observations (20)
Date Type RA Dec Mag Band Observatory
2021-12-02 05:46:08 C 03 12 17.56 +35 50 25.3 – V V00
2021-12-02 05:53:09 C 03 12 21.23 +35 48 28.0 – V V00
2021-12-02 06:00:15 C 03 12 24.90 +35 46 31.7 – V V00
2021-12-02 06:07:14 C 03 12 28.57 +35 44 34.3 – V V00
2021-12-02 08:04:10 C 03 13 28.56 +35 12 11.0 – V I52
2021-12-02 08:08:15 C 03 13 30.67 +35 11 03.4 – V I52
2021-12-02 08:12:21 C 03 13 32.78 +35 09 55.7 – V I52
2021-12-02 22:24:12 C 03 21 12.75 +31 35 41.4 – V 033
2021-12-02 22:25:31 C 03 21 13.27 +31 35 23.0 – V 033
2021-12-02 22:26:50 C 03 21 13.84 +31 35 04.6 – V 033
2021-12-03 02:56:28 C 03 23 31.84 +30 35 02.8 – V I52
2021-12-03 02:58:45 C 03 23 32.70 +30 34 33.7 – V I52
2021-12-03 03:01:02 C 03 23 33.56 +30 34 04.1 – V I52
2021-12-03 03:03:19 C 03 23 34.43 +30 33 34.7 – V I52
2021-12-04 02:57:57 C 03 32 20.03 +25 53 24.6 – X 858
2021-12-04 03:10:30 C 03 32 23.24 +25 51 18.4 – X 858
2021-12-04 03:21:51 C 03 32 21.47 +25 49 18.3 – u H21
2021-12-04 03:22:47 C 03 32 26.36 +25 49 14.7 – X 858
2021-12-04 03:38:54 C 03 32 25.69 +25 46 24.6 – u H21
2021-12-04 03:41:51 C 03 32 26.44 +25 45 54.5 – u H21