2020 HD9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.9142295000
Semi-major axis (a)2.2613458000 AU
Inclination (i)19.61079000°
Long. of Asc. Node (Ω)229.90786000°
Arg. of Perihelion (ω)172.15133000°
Mean Anomaly (M)248.49133000°
Mean Motion (n)0.2898368500°/day
Perihelion dist (q)0.19395680 AU
Aphelion dist (Q)4.32873480 AU
Orbital Period3.40056020 yr
Physical Parameters
H (abs. magnitude)19.57
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.790″
Uncertainty9
Orbit TypeApollo
MOID0.211849 AU
Observations Used23
Oppositions1
Arc Total
First Observation Used
Last Observation Used2020-04-30
Observations (24)
Date Type RA Dec Mag Band Observatory
2020-04-27 04:11:53 C 09 21 38.98 -10 45 05.1 V G96
2020-04-27 04:19:56 C 09 21 40.05 -10 44 58.2 V G96
2020-04-27 04:27:59 C 09 21 41.14 -10 44 52.5 V G96
2020-04-27 04:36:01 C 09 21 42.27 -10 44 45.5 V G96
2020-04-27 05:12:11 C 09 21 47.12 -10 44 17.6 V I52
2020-04-27 05:17:00 C 09 21 47.89 -10 44 13.9 V I52
2020-04-27 05:21:49 C 09 21 48.54 -10 44 10.5 V I52
2020-04-27 05:26:38 C 09 21 49.16 -10 44 05.4 V I52
2020-04-28 03:06:21 C 09 24 45.37 -10 27 34.7 V I52
2020-04-28 03:09:06 C 09 24 45.80 -10 27 33.4 V I52
2020-04-28 03:11:51 C 09 24 46.17 -10 27 31.2 V I52
2020-04-28 03:14:35 C 09 24 46.48 -10 27 28.7 V I52
2020-04-28 07:43:04 C 09 25 22.19 -10 23 57.5 V 474
2020-04-28 07:48:08 C 09 25 22.89 -10 23 53.2 V 474
2020-04-28 07:53:13 C 09 25 23.55 -10 23 49.7 V 474
2020-04-28 07:58:17 C 09 25 24.22 -10 23 46.2 V 474
2020-04-29 03:12:28 C 09 27 54.40 -10 10 08.0 V V06
2020-04-29 03:15:52 C 09 27 54.81 -10 10 05.7 V V06
2020-04-29 03:19:18 C 09 27 55.25 -10 10 03.4 V V06
2020-04-29 03:22:43 C 09 27 55.70 -10 10 01.0 V V06
2020-04-30 03:25:51 C 09 30 57.57 -09 53 32.1 V V06
2020-04-30 03:28:25 C 09 30 57.86 -09 53 30.7 V V06
2020-04-30 03:30:59 C 09 30 58.19 -09 53 28.8 V V06
2020-04-30 03:33:32 C 09 30 58.49 -09 53 26.9 V V06