IAA RAS IAA Minor Planet Database

2021 CT9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3105679000
Semi-major axis (a)1.3680566000 AU
Inclination (i)35.90073000°
Long. of Asc. Node (Ω)141.54137000°
Arg. of Perihelion (ω)290.05400000°
Mean Anomaly (M)35.87438000°
Mean Motion (n)0.6159536000°/day
Perihelion dist (q)0.94318210 AU
Aphelion dist (Q)1.79293110 AU
Orbital Period1.60013310 yr
Physical Parameters
H (abs. magnitude)23.40
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date—
RMS Residual0.390″
Uncertainty8
Orbit TypeApollo
MOID0.118543 AU
Observations Used20
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2021-02-19
Observations (20)
Date Type RA Dec Mag Band Observatory
2021-02-15 06:32:14 C 10 48 36.98 +35 20 51.6 – V G96
2021-02-15 06:39:43 C 10 48 36.63 +35 21 42.4 – V G96
2021-02-15 06:47:13 C 10 48 36.26 +35 22 33.8 – V G96
2021-02-15 06:54:43 C 10 48 35.83 +35 23 25.4 – V G96
2021-02-15 11:31:10 C 10 48 21.61 +35 54 12.0 – V I52
2021-02-15 11:33:35 C 10 48 21.47 +35 54 28.0 – V I52
2021-02-15 11:38:25 C 10 48 21.22 +35 54 59.9 – V I52
2021-02-16 02:12:00 C 10 47 48.68 +37 29 00.7 – V L01
2021-02-16 02:14:30 C 10 47 48.54 +37 29 16.9 – V L01
2021-02-16 02:17:00 C 10 47 48.45 +37 29 32.8 – V L01
2021-02-16 02:19:29 C 10 47 48.32 +37 29 48.8 – V L01
2021-02-16 04:05:28 C 10 47 48.17 +37 40 53.8 – V H36
2021-02-16 04:25:54 C 10 47 47.13 +37 43 02.7 – V H36
2021-02-16 04:46:50 C 10 47 46.12 +37 45 14.2 – V H36
2021-02-16 05:07:48 C 10 47 45.04 +37 47 26.9 – V H36
2021-02-16 09:37:25 C 10 47 34.560 +38 15 24.05 – U F51
2021-02-16 09:52:36 C 10 47 33.733 +38 16 57.84 – U F51
2021-02-16 10:23:03 C 10 47 32.078 +38 20 05.40 – U F51
2021-02-19 08:19:39 C 10 44 43.82 +44 34 04.0 – V V06
2021-02-19 08:22:13 C 10 44 43.72 +44 34 15.3 – V V06