2021 CR4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3606789000
Semi-major axis (a)1.5435133000 AU
Inclination (i)4.08266000°
Long. of Asc. Node (Ω)309.35368000°
Arg. of Perihelion (ω)149.58643000°
Mean Anomaly (M)196.90416000°
Mean Motion (n)0.5139708700°/day
Perihelion dist (q)0.98680060 AU
Aphelion dist (Q)2.10022600 AU
Orbital Period1.91763330 yr
Physical Parameters
H (abs. magnitude)26.80
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.070″
Uncertainty7
Orbit TypeApollo
MOID0.021789 AU
Observations Used10
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-02-10
Observations (10)
Date Type RA Dec Mag Band Observatory
2021-02-07 10:36:35 C 10 12 57.344 -00 29 10.95 U F51
2021-02-07 10:53:51 C 10 12 57.384 -00 29 41.57 U F51
2021-02-07 11:11:05 C 10 12 57.402 -00 30 12.24 U F51
2021-02-07 11:28:25 C 10 12 57.431 -00 30 43.24 U F51
2021-02-08 09:31:20 C 10 13 43.845 -01 07 54.84 V 568
2021-02-08 09:32:45 C 10 13 43.845 -01 07 57.06 V 568
2021-02-08 09:34:10 C 10 13 43.848 -01 07 59.33 V 568
2021-02-10 05:06:27 C 10 14 51.24 -02 09 35.1 V 807
2021-02-10 05:15:22 C 10 14 51.22 -02 09 46.9 V 807
2021-02-10 05:24:17 C 10 14 51.19 -02 09 58.7 V 807