2017 AA21

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4719691203 ± 1.79e-03
Semi-major axis (a)1.9019703603 AU ± 2.56e-03
Inclination (i)2.28719848° ± 3.33e-02
Long. of Asc. Node (Ω)332.05967910° ± 1.19e+00
Arg. of Perihelion (ω)172.66372999° ± 1.65e+00
Mean Anomaly (M)124.41317270° ± 2.39e+00
Mean Motion (n)0.3757566359°/day ± 7.59e-04
Perihelion dist (q)1.00429908 AU ± 3.67e-03
Aphelion dist (Q)2.79964164 AU ± 5.08e-03
Orbital Period2.62304425 yr ± 5.30e-03
Physical Parameters
H (abs. magnitude)26.18
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.101″
Uncertainty4
Orbit TypeApollo
MOID0.016875 AU
Observations Used7
Oppositions1
Arc Total2017-2017
First Observation Used2017-01-03
Last Observation Used2017-01-04
Observations (7)
Date Type RA Dec Mag Band Observatory
2017-01-03 11:02:18 C 07 02 50.279 +39 19 53.26 L F51
2017-01-03 11:20:23 C 07 02 52.999 +39 20 03.41 L F51
2017-01-03 11:38:27 C 07 02 55.696 +39 20 12.79 L F51
2017-01-03 11:56:31 C 07 02 58.444 +39 20 22.34 L F51
2017-01-04 10:30:18 C 07 07 09.403 +39 33 25.83 U 568
2017-01-04 10:32:08 C 07 07 09.704 +39 33 26.86 U 568
2017-01-04 10:33:58 C 07 07 09.999 +39 33 27.91 U 568