2004 HW53

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5810335245 ± 1.78e-07
Semi-major axis (a)2.1792974932 AU ± 5.00e-08
Inclination (i)39.12375880° ± 8.07e-05
Long. of Asc. Node (Ω)32.60745533° ± 2.49e-05
Arg. of Perihelion (ω)95.85279625° ± 5.89e-05
Mean Anomaly (M)273.45056394° ± 9.85e-05
Mean Motion (n)0.3063638349°/day ± 1.06e-08
Perihelion dist (q)0.91305259 AU ± 3.88e-07
Aphelion dist (Q)3.44554240 AU ± 3.96e-07
Orbital Period3.21717569 yr ± 1.11e-07
Physical Parameters
H (abs. magnitude)19.70
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.593″
Uncertainty0
Orbit TypeApollo
MOID0.263800 AU
Observations Used55
Oppositions10
Arc Total2004-2019
First Observation Used2004-04-26
Last Observation Used2019-10-26
Observations (57)
Date Type RA Dec Mag Band Observatory
2019-10-25 04:15:55 C 00 46 13.83 -21 02 18.9 V 807
2019-10-25 04:24:16 C 00 46 12.94 -21 02 14.8 V 807
2019-10-25 04:32:04 C 00 46 12.09 -21 02 11.2 V 807
2019-10-26 04:44:47 C 00 43 40.57 -20 50 51.4 V H01
2019-10-26 04:50:03 C 00 43 40.01 -20 50 48.8 V H01
2019-10-26 05:11:52 C 00 43 37.69 -20 50 38.3 V H01
2019-10-26 05:17:44 C 00 43 37.07 -20 50 35.3 V H01