2004 HD2

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.8324793409 ± 2.00e+00
Semi-major axis (a)2.3325200879 AU ± 3.00e+00
Inclination (i)15.10639025° ± 4.00e+00
Long. of Asc. Node (Ω)24.45887493° ± 5.00e+00
Arg. of Perihelion (ω)64.16718881° ± 6.00e+00
Mean Anomaly (M)40.20684950° ± 6.25e-01
Mean Motion (n)0.2766224200°/day ± 5.34e-01
Perihelion dist (q)0.39075780 AU ± 4.69e+00
Aphelion dist (Q)4.27484520 AU ± 7.21e+00
Orbital Period3.56300700 yr ± 6.87e+00
Physical Parameters
H (abs. magnitude)21.10
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.690″
Uncertainty3
Orbit TypeApollo
MOID0.025733 AU
Observations Used54
Oppositions1
Arc Total2004-2004
First Observation Used
Last Observation Used2004-05-10
Observations (58)
Date Type RA Dec Mag Band Observatory
2004-04-27 06:54:00 C 11 17 32.31 +03 02 01.6 c 673
2004-04-27 06:56:39 C 11 17 32.78 +03 01 54.0 c 673
2004-04-27 07:04:09 C 11 17 34.22 +03 01 31.0 c 673
2004-04-27 07:17:49 C 11 17 36.73 +03 00 51.3 c 673
2004-04-27 07:43:39 C 11 17 41.47 +02 59 36.3 c 673
2004-05-10 03:33:25 C 11 52 47.38 -05 25 07.1 d 291
2004-05-10 03:39:49 C 11 52 47.85 -05 25 12.3 d 291
2004-05-10 03:46:02 C 11 52 48.32 -05 25 18.0 d 291