2017 WP28

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.8010370796 ± 4.02e-07
Semi-major axis (a)1.1757890702 AU ± 9.46e-08
Inclination (i)10.08389670° ± 9.80e-06
Long. of Asc. Node (Ω)263.01211474° ± 4.68e-05
Arg. of Perihelion (ω)6.55891619° ± 7.67e-05
Mean Anomaly (M)138.11918096° ± 2.09e-04
Mean Motion (n)0.7730688034°/day ± 9.33e-08
Perihelion dist (q)0.23393843 AU ± 4.73e-07
Aphelion dist (Q)2.11763971 AU ± 5.02e-07
Orbital Period1.27495286 yr ± 1.54e-07
Physical Parameters
H (abs. magnitude)20.92
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.186″
Uncertainty0
Orbit TypeApollo
MOID0.105841 AU
Observations Used49
Oppositions1
Arc Total2017-2020
First Observation Used2017-11-27
Last Observation Used2020-02-27
Observations (57)
Date Type RA Dec Mag Band Observatory
2020-01-31 05:57:41 C 06 06 42.63 +07 51 50.7 o 691
2020-02-01 04:26:47 C 06 02 12.28 +07 49 20.5 o 691
2020-02-01 04:55:21 C 06 02 06.43 +07 49 17.4 o 691
2020-02-01 05:23:54 C 06 02 00.58 +07 49 13.9 o 691
2020-02-27 03:47:48 C 04 22 04.34 +07 03 50.6 o 291
2020-02-27 04:03:24 C 04 22 02.43 +07 03 49.3 o 291
2020-02-27 04:19:01 C 04 22 00.59 +07 03 48.9 o 291