IAA RAS IAA Minor Planet Database

2020 HG9

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4185119326 ± 1.05e-06
Semi-major axis (a)0.8643292142 AU ± 9.71e-09
Inclination (i)1.73737401° ± 7.17e-06
Long. of Asc. Node (Ω)64.41088883° ± 3.03e-05
Arg. of Perihelion (ω)308.95336567° ± 2.82e-05
Mean Anomaly (M)212.50658044° ± 9.18e-05
Mean Motion (n)1.2265732460°/day ± 2.07e-08
Perihelion dist (q)0.50259712 AU ± 9.04e-07
Aphelion dist (Q)1.22606130 AU ± 9.04e-07
Orbital Period0.80356089 yr ± 1.35e-08
Physical Parameters
H (abs. magnitude)23.38
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.246″
Uncertainty0
Orbit TypeAten
MOID0.003205 AU
Observations Used185
Oppositions1
Arc Total2020-2024
First Observation Used2020-04-27
Last Observation Used2024-05-06
Observations (200)
Date Type RA Dec Mag Band Observatory
2020-05-09 05:15:52 C 15 20 10.53 -11 13 13.3 – u H21
2020-05-09 05:18:23 C 15 20 09.33 -11 13 07.6 – u H21
2020-05-09 05:20:54 C 15 20 08.15 -11 13 02.3 – u H21
2020-05-09 05:23:25 C 15 20 06.98 -11 12 56.7 – u H21
2020-05-09 05:25:56 C 15 20 05.81 -11 12 51.6 – u H21
2020-05-09 05:28:27 C 15 20 04.61 -11 12 46.0 – u H21
2020-05-09 05:30:58 C 15 20 03.42 -11 12 40.7 – u H21
2020-05-09 05:33:29 C 15 20 02.23 -11 12 35.2 – u H21
2020-05-09 05:36:00 C 15 20 01.07 -11 12 29.7 – u H21
2020-05-09 05:38:30 C 15 19 59.87 -11 12 24.1 – u H21
2020-05-09 05:40:24 C 15 19 59.00 -11 12 20.3 – u H21
2020-05-09 11:29:56 C 15 17 22.75 -10 56 40.8 – V R57
2020-05-09 11:31:52 C 15 17 21.81 -10 56 36.5 – V R57
2020-05-09 11:33:49 C 15 17 20.88 -10 56 32.2 – V R57
2020-05-09 11:35:46 C 15 17 19.92 -10 56 27.1 – V R57
2020-05-10 12:30:26 C 15 04 52.74 -09 56 38.9 – V T08
2020-05-10 12:35:44 C 15 04 49.80 -09 56 24.5 – V T08
2020-05-10 12:45:41 C 15 04 44.18 -09 55 55.6 – V T08
2020-05-10 13:02:27 C 15 04 34.72 -09 55 10.4 – V T08
2020-05-10 15:16:07 C 15 03 29.70 -09 49 32.2 – q D29
2020-05-10 15:16:54 C 15 03 29.26 -09 49 30.2 – q D29
2020-05-10 15:34:40 C 15 03 18.90 -09 48 41.3 – q D29
2020-05-10 15:35:27 C 15 03 18.58 -09 48 39.8 – q D29
2020-05-10 20:11:19 C 15 00 48.10 -09 36 03.8 – u A50
2020-05-10 20:11:39 C 15 00 47.84 -09 36 02.4 – u A50
2020-05-10 20:12:36 C 15 00 47.27 -09 35 59.7 – u A50
2020-05-10 20:19:19 C 15 00 43.51 -09 35 39.6 – u A50
2020-05-10 20:19:39 C 15 00 43.24 -09 35 38.3 – u A50
2020-05-11 02:19:32 C 14 57 20.74 -09 17 34.1 – q W33
2020-05-11 02:23:36 C 14 57 18.31 -09 17 22.7 – q W33
2020-05-11 11:41:34 C 14 51 42.73 -08 45 58.2 – V Q78
2020-05-11 12:00:55 C 14 51 30.10 -08 44 56.3 – V Q78
2020-05-11 12:20:26 C 14 51 17.29 -08 43 52.7 – V Q78
2020-05-11 12:45:38 C 14 51 05.457 -08 42 16.51 – V D20
2020-05-11 12:46:54 C 14 51 04.582 -08 42 12.82 – V D20
2020-05-12 02:24:01 C 14 42 14.12 -07 58 09.2 – q W46
2020-05-12 02:32:53 C 14 42 07.83 -07 57 37.2 – q W46
2020-05-12 02:41:40 C 14 42 01.63 -07 57 05.8 – q W46
2020-05-12 22:55:56 C 14 27 20.66 -06 38 34.5 – V K87
2020-05-12 23:06:11 C 14 27 12.48 -06 37 51.3 – V K87
2020-05-12 23:16:27 C 14 27 04.29 -06 37 08.0 – V K87
2020-05-13 08:25:53 C 14 19 53.603 -05 56 09.43 – U F52
2020-05-13 09:00:17 C 14 19 23.981 -05 53 34.25 – U F52
2020-05-13 09:17:16 C 14 19 09.304 -05 52 17.37 – U F52
2020-05-13 09:40:15 C 14 18 49.43 -05 50 32.7 – V T05
2020-05-13 09:49:11 C 14 18 41.67 -05 49 52.2 – V T05
2020-05-13 10:05:29 C 14 18 27.51 -05 48 37.4 – V T05
2020-05-13 10:11:48 C 14 18 22.02 -05 48 08.4 – V T05
2020-05-14 04:47:47 C 14 02 15.96 -04 17 47.5 – V I52
2020-05-14 04:47:59 C 14 02 15.78 -04 17 46.6 – V I52