2001 RA18

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5959237328 ± 7.87e-09
Semi-major axis (a)2.6000613537 AU ± 1.92e-09
Inclination (i)10.99850563° ± 2.38e-06
Long. of Asc. Node (Ω)179.63654998° ± 7.44e-06
Arg. of Perihelion (ω)205.86596005° ± 9.15e-06
Mean Anomaly (M)263.71411846° ± 1.56e-06
Mean Motion (n)0.2350914756°/day ± 2.61e-10
Perihelion dist (q)1.05062309 AU ± 2.05e-08
Aphelion dist (Q)4.14949962 AU ± 2.07e-08
Orbital Period4.19252242 yr ± 4.65e-09
Physical Parameters
H (abs. magnitude)19.37
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.277″
Uncertainty0
Orbit TypeAmor
MOID0.071961 AU
Observations Used332
Oppositions17
Arc Total2001-2023
First Observation Used2001-06-15
Last Observation Used2023-01-22
Observations (357)
Date Type RA Dec Mag Band Observatory
2023-01-16 06:50:51 C 04 58 29.424 -04 21 36.10 U F52
2023-01-16 07:08:18 C 04 58 30.378 -04 21 16.07 U F52
2023-01-16 07:25:44 C 04 58 31.331 -04 20 56.00 U F52
2023-01-16 07:43:09 C 04 58 32.287 -04 20 36.02 U F52
2023-01-22 07:02:34 C 05 06 59.282 -01 44 02.01 U F52
2023-01-22 07:20:13 C 05 07 00.265 -01 43 43.68 U F52
2023-01-22 07:37:54 C 05 07 01.252 -01 43 25.28 U F52