2018 WP

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.8351406293 ± 1.64e-04
Semi-major axis (a)2.4633166989 AU ± 1.63e-03
Inclination (i)13.07792064° ± 5.23e-03
Long. of Asc. Node (Ω)62.75274591° ± 2.74e-04
Arg. of Perihelion (ω)234.33918952° ± 2.77e-03
Mean Anomaly (M)310.55933473° ± 6.77e-01
Mean Motion (n)0.2549364299°/day ± 2.54e-04
Perihelion dist (q)0.40610084 AU ± 4.85e-04
Aphelion dist (Q)4.52053256 AU ± 3.03e-03
Orbital Period3.86616492 yr ± 3.85e-03
Physical Parameters
H (abs. magnitude)20.56
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.249″
Uncertainty3
Orbit TypeApollo
MOID0.069662 AU
Observations Used59
Oppositions1
Arc Total2018-2018
First Observation Used2018-11-17
Last Observation Used2018-12-13
Observations (60)
Date Type RA Dec Mag Band Observatory
2018-12-04 08:01:04 C 03 55 47.20 +23 13 28.2 o 691
2018-12-09 09:25:16 C 03 43 43.55 +23 13 35.4 o 291
2018-12-09 09:35:40 C 03 43 42.64 +23 13 35.4 o 291
2018-12-09 09:46:04 C 03 43 41.70 +23 13 35.1 o 291
2018-12-13 01:53:05 C 03 36 51.64 +23 12 17.3 u H21
2018-12-13 02:08:01 C 03 36 50.58 +23 12 17.1 u H21
2018-12-13 02:33:07 C 03 36 48.77 +23 12 16.6 u H21
2018-12-13 10:39:38 C 03 36 14.738 +23 12 11.63 U F51
2018-12-13 10:57:50 C 03 36 13.443 +23 12 10.92 U F51
2018-12-13 11:34:13 C 03 36 10.899 +23 12 09.99 U F51