2017 AB21

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2016-12-18 (JD 2457740.5)
Eccentricity (e)1.2845090921 ± 2.28e+00
Semi-major axis (a)-1.5545128267 AU ± 8.22e+00
Inclination (i)19.60452201° ± 5.09e+01
Long. of Asc. Node (Ω)67.87740903° ± 8.94e+01
Arg. of Perihelion (ω)284.91243886° ± 6.49e+01
Mean Anomaly (M)0.00000000°
Mean Motion (n)0.5085349563°/day ± 4.03e+00
Perihelion dist (q)0.44227303 AU ± 4.24e+00
Aphelion dist (Q)-3.55129869 AU ± 1.91e+01
Orbital Period1.93816820 yr ± 1.54e+01
Physical Parameters
H (abs. magnitude)21.00
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-08
RMS Residual0.140″
Uncertainty
Orbit TypeAtira
MOID0.075408 AU
Observations Used7
Oppositions
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 11:16:22 C 07 44 27.586 +43 20 35.93 L F51
2017-01-03 11:34:28 C 07 44 25.650 +43 20 39.15 L F51
2017-01-03 11:52:32 C 07 44 23.672 +43 20 42.39 L F51
2017-01-03 12:10:35 C 07 44 21.721 +43 20 45.09 L F51
2017-01-04 10:35:55 C 07 42 00.731 +43 24 14.46 U 568
2017-01-04 10:37:45 C 07 42 00.535 +43 24 14.75 U 568
2017-01-04 10:39:35 C 07 42 00.336 +43 24 15.00 U 568