IAA RAS IAA Minor Planet Database

2020 HY9

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5824937857 ± 2.79e-03
Semi-major axis (a)1.8509214563 AU ± 1.13e-02
Inclination (i)10.20827131° ± 3.49e-02
Long. of Asc. Node (Ω)187.81017856° ± 3.39e-02
Arg. of Perihelion (ω)305.69937582° ± 5.33e-02
Mean Anomaly (M)98.96334314° ± 7.57e+00
Mean Motion (n)0.3914085347°/day ± 3.57e-03
Perihelion dist (q)0.77277121 AU ± 6.98e-03
Aphelion dist (Q)2.92907170 AU ± 1.86e-02
Orbital Period2.51815225 yr ± 2.30e-02
Physical Parameters
H (abs. magnitude)24.30
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.285″
Uncertainty4
Orbit TypeApollo
MOID0.038026 AU
Observations Used18
Oppositions1
Arc Total2020-2020
First Observation Used2020-04-28
Last Observation Used2020-05-01
Observations (18)
Date Type RA Dec Mag Band Observatory
2020-04-28 07:07:50 C 13 55 37.41 +25 47 55.9 – V G96
2020-04-28 07:15:16 C 13 55 37.92 +25 47 34.3 – V G96
2020-04-28 07:22:41 C 13 55 38.44 +25 47 13.1 – V G96
2020-04-28 07:30:08 C 13 55 38.97 +25 46 53.0 – V G96
2020-04-28 09:08:11 C 13 55 46.13 +25 42 15.0 – V V06
2020-04-28 09:12:31 C 13 55 46.42 +25 42 02.5 – V V06
2020-04-28 09:16:52 C 13 55 46.74 +25 41 49.6 – V V06
2020-04-28 09:21:13 C 13 55 47.07 +25 41 37.8 – V V06
2020-04-29 04:37:36 C 13 57 25.19 +24 49 48.5 – V V06
2020-04-29 04:44:26 C 13 57 25.64 +24 49 30.3 – V V06
2020-04-29 04:51:17 C 13 57 26.10 +24 49 12.7 – V V06
2020-04-29 04:58:08 C 13 57 26.57 +24 48 55.7 – V V06
2020-04-30 05:08:52 C 13 59 12.94 +23 48 53.9 – V V06
2020-04-30 05:18:00 C 13 59 13.44 +23 48 32.7 – V V06
2020-04-30 05:27:07 C 13 59 13.94 +23 48 11.3 – V V06
2020-05-01 05:07:10 C 14 00 46.75 +22 54 02.3 – u H21
2020-05-01 05:16:47 C 14 00 47.25 +22 53 40.9 – u H21
2020-05-01 05:21:09 C 14 00 47.46 +22 53 31.6 – u H21