251732 (1998 HG49)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1125043905 ± 1.28e-01
Semi-major axis (a)1.2005415960 AU ± 8.00e-02
Inclination (i)4.19488942° ± 6.55e+00
Long. of Asc. Node (Ω)44.80051510° ± 1.08e+02
Arg. of Perihelion (ω)324.25955106° ± 1.74e+02
Mean Anomaly (M)188.40774973° ± 1.96e+02
Mean Motion (n)0.7492839988°/day ± 7.49e-02
Perihelion dist (q)1.06547540 AU ± 1.69e-01
Aphelion dist (Q)1.33560780 AU ± 1.77e-01
Orbital Period1.31542417 yr ± 1.31e-01
NGA Modelr2
A2-1.31289640e-05 AU/d²
Physical Parameters
H (abs. magnitude)21.76
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.385″
Uncertainty0
Orbit TypeAmor
MOID0.075093 AU
Observations Used150
Oppositions6
Arc Total1998-2023
First Observation Used1998-04-27
Last Observation Used2023-05-11
Observations (156)
Date Type RA Dec Mag Band Observatory
2023-04-29 04:03:48 C 12 34 48.713 +00 27 39.71 V G96
2023-04-29 04:11:15 C 12 34 48.212 +00 27 38.38 V G96
2023-05-11 07:24:01 C 12 21 24.407 -00 29 06.13 X F51
2023-05-11 07:41:02 C 12 21 23.833 -00 29 10.86 X F51
2023-05-11 07:58:02 C 12 21 23.255 -00 29 15.49 X F51
2023-05-11 08:15:01 C 12 21 22.679 -00 29 20.47 X F51