2021 CD9

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3894423000
Semi-major axis (a)1.5053276000 AU
Inclination (i)3.27728000°
Long. of Asc. Node (Ω)100.48577000°
Arg. of Perihelion (ω)338.47051000°
Mean Anomaly (M)239.51240000°
Mean Motion (n)0.5336512700°/day
Perihelion dist (q)0.91908940 AU
Aphelion dist (Q)2.09156580 AU
Orbital Period1.84691340 yr
Physical Parameters
H (abs. magnitude)25.50
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.150″
Uncertainty7
Orbit TypeApollo
MOID0.017250 AU
Observations Used18
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-02-16
Observations (18)
Date Type RA Dec Mag Band Observatory
2021-02-12 06:04:27 C 10 06 13.20 +35 22 07.7 V V00
2021-02-12 06:11:21 C 10 06 13.13 +35 21 57.8 V V00
2021-02-12 06:18:14 C 10 06 13.07 +35 21 47.6 V V00
2021-02-12 06:25:07 C 10 06 13.02 +35 21 37.7 V V00
2021-02-13 10:17:29 C 10 06 28.44 +34 40 25.5 V 291
2021-02-13 10:47:40 C 10 06 28.26 +34 39 39.6 V 291
2021-02-13 11:17:56 C 10 06 28.14 +34 38 53.6 V 291
2021-02-15 08:41:07 C 10 06 57.42 +33 38 11.1 V V00
2021-02-15 08:42:09 C 10 06 57.39 +33 38 09.9 V V00
2021-02-15 08:55:18 C 10 06 57.27 +33 37 52.8 V V00
2021-02-15 08:56:19 C 10 06 57.25 +33 37 51.4 V V00
2021-02-15 09:02:45 C 10 06 57.18 +33 37 42.9 V V00
2021-02-15 09:03:46 C 10 06 57.19 +33 37 42.0 V V00
2021-02-15 09:10:11 C 10 06 57.14 +33 37 33.3 V V00
2021-02-15 09:11:12 C 10 06 57.10 +33 37 31.9 V V00
2021-02-16 09:23:11 C 10 07 11.926 +33 07 50.01 U F51
2021-02-16 09:53:31 C 10 07 11.528 +33 07 14.94 U F51
2021-02-16 10:08:45 C 10 07 11.311 +33 06 56.77 U F51