2017 HY4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2217354000
Semi-major axis (a)1.3512026000 AU
Inclination (i)9.39558000°
Long. of Asc. Node (Ω)212.25891000°
Arg. of Perihelion (ω)351.80127000°
Mean Anomaly (M)171.92792000°
Mean Motion (n)0.6275139200°/day
Perihelion dist (q)1.05159320 AU
Aphelion dist (Q)1.65081200 AU
Orbital Period1.57065470 yr
Physical Parameters
H (abs. magnitude)25.50
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.340″
Uncertainty6
Orbit TypeAmor
MOID0.047817 AU
Observations Used58
Oppositions1
Arc Total
First Observation Used
Last Observation Used2017-05-21
Observations (58)
Date Type RA Dec Mag Band Observatory
2017-05-03 07:05:30 C 15 30 22.43 +13 15 58.2 q I52
2017-05-05 10:09:29 C 15 42 06.64 +16 24 13.8 o 291
2017-05-05 10:15:43 C 15 42 07.82 +16 24 34.5 o 291
2017-05-14 05:29:58 C 16 17 08.42 +24 20 14.1 u H21
2017-05-14 05:39:36 C 16 17 09.38 +24 20 27.9 u H21
2017-05-14 05:53:13 C 16 17 10.73 +24 20 47.6 u H21
2017-05-21 10:22:28 C 16 33 55.09 +27 04 10.7 o 291
2017-05-21 10:53:12 C 16 33 56.92 +27 04 25.9 o 291