394783 (2008 HD3)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3361290137 ± 1.90e-07
Semi-major axis (a)1.1314159246 AU ± 2.05e-09
Inclination (i)52.00567564° ± 1.91e-05
Long. of Asc. Node (Ω)222.06904053° ± 2.95e-06
Arg. of Perihelion (ω)223.76335156° ± 3.29e-05
Mean Anomaly (M)322.58615327° ± 5.81e-05
Mean Motion (n)0.8189904648°/day ± 2.23e-09
Perihelion dist (q)0.75111421 AU ± 2.15e-07
Aphelion dist (Q)1.51171764 AU ± 2.15e-07
Orbital Period1.20346491 yr ± 3.27e-09
Physical Parameters
H (abs. magnitude)19.80
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.311″
Uncertainty0
Orbit TypeApollo
MOID0.181537 AU
Observations Used152
Oppositions3
Arc Total2008-2025
First Observation Used2008-04-28
Last Observation Used2025-06-02
Observations (162)
Date Type RA Dec Mag Band Observatory
2020-05-03 09:16:50 C 14 02 46.07 -17 48 27.8 V T08
2020-05-17 06:43:15 C 13 33 17.14 +06 58 46.4 V 703
2020-05-17 07:07:43 C 13 33 15.83 +06 59 58.8 V 703
2020-05-18 14:35:55 C 13 31 46.41 +08 29 26.4 q D29
2020-05-18 14:56:17 C 13 31 45.41 +08 30 20.8 q D29
2020-05-19 06:19:21 C 13 31 06.131 +09 11 30.80 U F52
2020-05-19 06:37:25 C 13 31 05.278 +09 12 18.13 U F52
2020-05-19 07:13:37 C 13 31 03.574 +09 13 52.98 U F52
2020-05-26 08:39:31 C 13 26 01.272 +15 10 44.85 U F52
2020-05-26 08:56:36 C 13 26 00.878 +15 11 13.32 U F52
2025-06-02 05:19:45 C 17 44 37.86 +50 19 25.6 V H21
2025-06-02 05:38:56 C 17 44 35.50 +50 19 51.9 V H21