2021 QY4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4528070000
Semi-major axis (a)2.2965241000 AU
Inclination (i)11.30454000°
Long. of Asc. Node (Ω)159.06145000°
Arg. of Perihelion (ω)162.63977000°
Mean Anomaly (M)81.20465000°
Mean Motion (n)0.2832028100°/day
Perihelion dist (q)1.25664190 AU
Aphelion dist (Q)3.33640630 AU
Orbital Period3.48021850 yr
Physical Parameters
H (abs. magnitude)23.42
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.720″
Uncertainty9
Orbit TypeAmor
MOID0.248957 AU
Observations Used13
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-09-02
Observations (13)
Date Type RA Dec Mag Band Observatory
2021-08-30 10:39:36 C 21 12 45.051 -10 03 22.72 U F51
2021-08-30 10:46:47 C 21 12 45.720 -10 03 34.66 U F51
2021-08-30 10:53:58 C 21 12 46.374 -10 03 46.21 U F51
2021-08-31 10:19:40 C 21 15 10.305 -10 42 30.95 V F51
2021-08-31 10:33:05 C 21 15 11.582 -10 42 52.85 V F51
2021-08-31 10:59:52 C 21 15 14.088 -10 43 36.41 V F51
2021-09-01 21:29:32 C 21 18 48.40 -11 39 34.7 V 033
2021-09-01 21:34:42 C 21 18 48.89 -11 39 42.8 V 033
2021-09-01 21:39:51 C 21 18 49.38 -11 39 50.7 V 033
2021-09-01 21:45:15 C 21 18 49.92 -11 39 59.2 V 033
2021-09-02 21:32:17 C 21 21 18.02 -12 17 28.5 V 033
2021-09-02 21:37:27 C 21 21 18.46 -12 17 36.3 V 033
2021-09-02 21:42:36 C 21 21 19.00 -12 17 44.5 V 033