IAA RAS IAA Minor Planet Database

2021 CU9

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4595832000
Semi-major axis (a)1.9101827000 AU
Inclination (i)5.75578000°
Long. of Asc. Node (Ω)134.75843000°
Arg. of Perihelion (ω)356.74408000°
Mean Anomaly (M)294.39128000°
Mean Motion (n)0.3733289800°/day
Perihelion dist (q)1.03229480 AU
Aphelion dist (Q)2.78807060 AU
Orbital Period2.64005130 yr
Physical Parameters
H (abs. magnitude)26.00
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date—
RMS Residual0.260″
Uncertainty7
Orbit TypeAmor
MOID0.046856 AU
Observations Used18
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2021-02-16
Observations (18)
Date Type RA Dec Mag Band Observatory
2021-02-05 03:41:32 C 07 38 49.95 +22 18 52.3 – V G96
2021-02-05 03:49:35 C 07 38 55.10 +22 19 30.3 – V G96
2021-02-05 03:57:40 C 07 39 00.30 +22 20 07.8 – V G96
2021-02-15 09:49:31 C 10 33 29.67 +32 42 42.6 – V V00
2021-02-15 09:55:37 C 10 33 33.01 +32 42 43.9 – V V00
2021-02-15 10:07:47 C 10 33 39.71 +32 42 46.2 – V V00
2021-02-15 11:21:22 C 10 34 20.30 +32 42 54.4 – V I52
2021-02-15 11:23:47 C 10 34 21.67 +32 42 53.6 – V I52
2021-02-15 11:26:13 C 10 34 23.01 +32 42 54.1 – V I52
2021-02-15 11:28:38 C 10 34 24.41 +32 42 54.5 – V I52
2021-02-16 01:45:48 C 10 42 40.23 +32 45 43.9 – V L01
2021-02-16 01:48:17 C 10 42 41.57 +32 45 43.6 – V L01
2021-02-16 01:50:47 C 10 42 42.85 +32 45 43.5 – V L01
2021-02-16 01:58:14 C 10 42 46.85 +32 45 44.0 – V L01
2021-02-16 09:35:34 C 10 47 09.037 +32 47 23.74 – U F51
2021-02-16 09:50:44 C 10 47 16.711 +32 47 26.59 – U F51
2021-02-16 10:05:57 C 10 47 24.346 +32 47 28.97 – U F51
2021-02-16 10:21:10 C 10 47 31.968 +32 47 31.08 – U F51