2018 CW2

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4224811278 ± 2.26e-07
Semi-major axis (a)0.7599069205 AU ± 1.03e-08
Inclination (i)5.09697538° ± 7.32e-06
Long. of Asc. Node (Ω)331.90176076° ± 1.07e-05
Arg. of Perihelion (ω)327.71484995° ± 2.10e-05
Mean Anomaly (M)122.88254591° ± 2.51e-05
Mean Motion (n)1.4878929180°/day ± 3.01e-08
Perihelion dist (q)0.43886059 AU ± 1.72e-07
Aphelion dist (Q)1.08095325 AU ± 1.72e-07
Orbital Period0.66243093 yr ± 1.34e-08
NGA Modelr2
A2-4.68098758e-13 ± 2.25e-14 AU/d²
Physical Parameters
H (abs. magnitude)25.66
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.559″
Uncertainty0
Orbit TypeAten
MOID0.004404 AU
Observations Used159
Radar Obs Used3
Oppositions2
Arc Total2018-2022
First Observation Used2018-02-09
Last Observation Used2022-02-17
Observations (159)
Date Type RA Dec Mag Band Observatory
2022-02-17 08:46:20 C 15 30 36.19 +17 17 18.7 V U52
2022-02-17 08:51:13 C 15 30 59.82 +17 18 07.6 V U52
2022-02-17 08:56:07 C 15 31 23.41 +17 18 55.9 V U52
2022-02-17 09:15:36 C 15 32 58.17 +17 22 08.0 V U52
2022-02-17 09:20:31 C 15 33 22.21 +17 22 57.6 V U52
2022-02-17 09:25:24 C 15 33 46.14 +17 23 46.4 V U52
2022-02-17 09:48:15 C 15 35 39.49 +17 27 29.5 V U52
2022-02-17 09:53:09 C 15 36 04.03 +17 28 17.6 V U52
2022-02-17 09:58:03 C 15 36 28.59 +17 29 05.2 V U52
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2022-02-19 22:00:00 -533339.704 0.25 Hz 8560 -14 -14
2022-02-19 22:40:00 11181302.45 2 us 8560 -14 -14
2022-02-19 23:00:00 11257047.12 0.3 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)