2018 TW

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5330250551 ± 6.74e-06
Semi-major axis (a)2.6738547564 AU ± 4.26e-05
Inclination (i)19.23644212° ± 1.41e-04
Long. of Asc. Node (Ω)201.13540444° ± 2.08e-05
Arg. of Perihelion (ω)188.34872438° ± 1.09e-04
Mean Anomaly (M)222.18430165° ± 1.40e-02
Mean Motion (n)0.2254268057°/day ± 5.39e-06
Perihelion dist (q)1.24862318 AU ± 2.68e-05
Aphelion dist (Q)4.09908634 AU ± 6.78e-05
Orbital Period4.37226744 yr ± 1.05e-04
Physical Parameters
H (abs. magnitude)21.20
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.361″
Uncertainty2
Orbit TypeAmor
MOID0.253118 AU
Observations Used110
Oppositions1
Arc Total2018-2018
First Observation Used2018-09-29
Last Observation Used2018-12-27
Observations (111)
Date Type RA Dec Mag Band Observatory
2018-11-18 04:45:50 C 01 54 53.75 -21 04 47.6 V I52
2018-11-28 06:21:36 C 02 18 26.33 -22 56 13.3 V I52
2018-11-28 06:26:23 C 02 18 26.80 -22 56 14.6 V I52
2018-11-28 06:31:11 C 02 18 27.13 -22 56 14.6 V I52
2018-11-28 06:35:58 C 02 18 27.54 -22 56 14.8 V I52
2018-12-14 02:58:46 C 02 51 17.89 -22 11 49.5 u 807
2018-12-14 03:16:03 C 02 51 19.21 -22 11 43.0 u 807
2018-12-14 03:33:36 C 02 51 20.57 -22 11 36.5 u 807
2018-12-27 02:56:25 C 03 15 55.95 -19 37 43.5 U 807
2018-12-27 03:09:23 C 03 15 56.91 -19 37 35.5 U 807
2018-12-27 03:22:21 C 03 15 57.86 -19 37 27.7 U 807